utun2

Commit Graph

Author	SHA1	Message	Date
evgeny	7799d54c0c	conn_mgr: обновить API на единую точку входа conn_mgr_open_invite, поправить порядок destroy, обновить всех потребителей - conn_mgr_cb_t: 5 параметров (h, node_id, group_id, event, arg) - conn_mgr_open_invite: единая функция (ni=NULL — обычное, ni!=NULL — invite) - CONN_EVENT_JOIN для успешного invite - struct CONN_MGR_HANDLE: добавлен group_id - bind/unbind в conn_mgr_init/destroy (один на инстанс, перезапись безвредна) - utun_instance_destroy: conn_mgr_destroy до закрытия сокетов - cm_ncd_callback: занулять ncd_handle при DOWN, защита от вызова после destroy - topo_group_connect: свой трекинг handle'ов, conn_mgr_close для отмены - обновлены: topo_recovery, media_download, media_delivery, chat_sync, тесты	2 months ago
evgeny	625382de34	node_conn_direct: add specific_sock param, move registry to per-instance; expose sc_hex_to_binary; add CONFIG_CONN_HANDLE	2 months ago
evgeny	eb2a8f6975	node_conn_direct: add open_node variant, refactor internals	2 months ago
evgeny	153483fd96	media_delivery: обновление и новый тест conn_mgr_handles	2 months ago
evgeny	d310bccf08	fix: memory pool alloc mismatch in tests, db_sync SEND_DATA buffer overflow - test_etcp_router_reconnect, test_etcp_connect, test_stcp_traffic: replace u_calloc with memory_pool_alloc for TOPO_SOCKMETA4/TOPO_ADDR4 - db_sync.c: fix req[14] -> req[15] — SEND_DATA request header is 15 bytes (type:1 + from:4 + count:2 + vp:4 + want_from:4)	2 months ago
evgeny	51d6c782ac	voice playback: miniaudio cursor ground truth + EMA smooth decay - SoundManager: add currentPcmCursor()/isCurrentPcmPlaying() via ma_sound_get_cursor_in_pcm_frames / ma_sound_is_playing - messagedelegate: replace wall-clock position tracking with real miniaudio cursor, remove 200ms hardcoded delay - messagedelegate: end-of-playback detection via isCurrentPcmPlaying() instead of wall-clock comparison (was killing audio ~200ms early) - messagedelegate: EMA smoothing of displayFrac/displayElapsed (0.15 factor, 16ms timer) - messagedelegate: timer continues after audio stops to animate EMA decay to 0 (not mouse-move dependent) - media_delivery: download progress callback, Ed25519 sig verify, author fallback, content hash check - conn_mgr: already-connected returns OK with callback instead of error - chatgui: voice download-pending auto-play, file download progress bar, media bar colors	2 months ago
evgeny	641c9f574f	db_sync: cascade insert + SYNC_DONE fixes + done_cbk + test stabilization - db_record_insert_cascade: unified insert with on_insert + PUSH cascade - SYNC_DONE moved from INIT_RESP to DATA handler (master sends after slave response) - db_sync_add/remove_done_cbk: global sync-completion subscription (etcp pattern) - REQUEST_SYNC handler: sync_state != 1 instead of == 0 - SYNC_DONE mc==pc hash mismatch: accept as converged - Removed unconditional sync_state=2 from DATA handler - test: done_cbk for sync phases, count-only for PUSH phases, removed dead B<>C reinitiate	2 months ago
evgeny	c093630d4d	db_sync: async batch chain_hash recalc (batch 50, timeout 0→100tb), flush before protocol chain_hash reads, remove db_cascade_from/range + do_cascade param	2 months ago
evgeny	70797f921e	feature: media auto-download + manual download + UI download state indication (Android + desktop) C-layer: - chat_event.h: CHAT_EVT_ATTACHMENT_DOWNLOADED (14) - chat_msg.c: fixed md_auto_download (non-NULL done_cb, correct media_base from db_path, use chat_setting for autoload checks) - chat_msg.c: added chat_core_attachment_download + trampoline for manual download - chat_core.h: exported attachment_dl_req + trampoline Android (Kotlin + JNI): - Message: downloadState field (parse from localAttrs) - ChatRepository: parse localAttrs for download state - NativeLib: attachmentDownload() JNI - MessageBubble: FileBubble with download status icon + tap-to-download - ChatViewModel: downloadAttachment() + CHAT_EVT_ATTACHMENT_DOWNLOADED handler - ChatScreen: wire onDownloadFile handler - android_jni_bridge: utun_bridge_attachment_download + JNI + localAttrs in JSON Desktop (Qt/C++): - messagedelegate.h: MsgFileDownloadStateRole, MsgChannelIdRole - messagelist.cpp: parse localAttrs for file download state - messagedelegate.cpp: FileBubble with download icon/text + click handler via chat_core_attachment_download_trampoline - gui_bridge.h: GUI_EVT_ATTACHMENT_DOWNLOADED (14) + callback typedef - gui_bridge_impl.cpp: event dispatch + setter - mainwindow.cpp: callback registration -> refresh message list	2 months ago
evgeny	b8920cf483	chat_settings: [chat] config section + live sync + fix test segfault - New chat_setting.c/h: unified chat settings API (int/str getters) - Config parser supports [chat] section, calls chat_setting_set per key - chat_core exposes chat_core_set_setting / trampoline for GUI bridge - chatgui: AudioDevice + Storage pages persist to [chat] config + live apply - chatgui-android: ConfigProvider, NativeLib, headless handle chat settings - MessageList: 200 msg limit, fixed saveChannelState via trampoline - test_media_delivery_full: fix segfault at shutdown (mon() timer vs freed conns)	2 months ago
evgeny	efbb495016	media_delivery: fix SUPER_REPL spam + streaming verification Bugs fixed: - md_super_peer_add: timeout_tb = 0 → MEDIA_REPL_TIMEOUT_TB (timer fired every poll) - md_repl_retrans_cb: md from peer->connect_timer (garbage) → peer->md - md_repl_retrans_cb: removed inflight_count=0 reset (don't resend acked entries) - stream_ctx: removed unused block_data field (was NULL, caused crash in BLOCK_DONE) Test improvements: - stream_completed flag for reliable streaming verification - File created in <db_dir>/media/ (matches media_index path logic) - 9/9 full test, 33/33 total	2 months ago
evgeny	b4824de3b8	media_delivery: fix streaming crash, correct file path via media dir - Fix NULL block_data deref in stream_send_chunk_cb - Test B1: create file in <db_dir>/media/, commit to media_files - Store media_base in ui_state for streaming handler path resolution - 8/9 tests pass (streaming works but timing issue with SUPER_REPL flood)	2 months ago
evgeny	a6321e15b3	media_delivery: streaming, fallback, admission control, 8/9 tests - md_handle_block_req: real chunk streaming via etcp_router_on_send_ready - stream_ctx state machine: backpressure waiter → send chunk → repeat - content_hash + block_sig on stream completion - Fallback to author when supernode has no block info - media_download: author_node_id for peer fallback - test_media_delivery_full: 8/9 pass (SUPER_HELLO, HAVE_BLOCK, replication, admission, file create) - Known issue: streaming test hung (BGP route for n1→n2 not established in time)	2 months ago
evgeny	57e6ffed16	media_delivery: admission control + OVERLOADED + full integration test - MEDIA_BLOCK_OVERLOADED (0x0F) subcommand + packed struct - Admission control: track active_streams, reject > 3 with OVERLOADED - media_delivery_stream_done() to decrement counter after stream finish - Auto-download trigger in chat_msg.c (parse media metadata, check settings) - test_media_delivery_full.c: 9/9 tests on 4 instances (SUPER_HELLO, HAVE_BLOCK, replication, admission control, OVERLOADED) - All 33 existing tests still pass (15+5+4+9)	2 months ago
evgeny	5e739176fa	media_delivery: fix etcp_route_send svc_id + integration test Root cause: etcp_route_send reads dgram[0] as svc_id, not subcmd. router_deliver prepends svc_id byte on receive. Fixes: - md_send/md_dl_send/msend: prepend ETCP_RT_ID_MEDIA_DELIVERY to dgram[0] - md_etcp_recv: read subcmd from data[1] (was data[0]) - etcp_api.h: document dgram[0]=svc_id convention - media_delivery_set_supernode(): public API for dynamic switching Tests: - test_media_delivery_integration: 4/4 (SERVE_REG, HAVE_BLOCK, supernode stop/start) - All 24 existing tests still pass	2 months ago
evgeny	a863da7737	media_delivery: add tests + fix queue_new NULL ua and index_offset bugs - test_media_delivery_sql: 15 tests (SQL tables, CRUD, packed structs) - test_media_delivery_download: 5 tests (chunk write/append, sig verify, assembly, cancel) - Fix: queue_new(NULL) returns NULL — pass inst->ua everywhere - Fix: queue index offset must be offsetof(struct, key_field) not 0 - Move struct media_download to header for test visibility	2 months ago
evgeny	65dbfa6813	feat: media_async + media_index modules, media_files table, tests - media_async: thread-per-task async engine with primitives (sha256, sign, copy, uuid, file_size) - media_index: media_files DB table with register_async for indexing chunks - chat_msg: async media submission via register_async, simplified chat_msg_submit fields - voice_recorder/attachment_sender: write single file (no chunk splitting on caller side) - inputbar/messagelist: updated to new simplified submit interface - test_media_async: 4-thread stress test (200K ops / 2 sec, 0 errors) - test_media_index: 9 cases covering commit edge cases + async flow - build: Makefile.am, CMakeLists.txt, utun_sources.cmake updated	2 months ago
evgeny	ce5a84da24	fix: uasync epoll event ordering + test_uasync_socket_race fix	2 months ago
evgeny	90de87b13d	move audio_compressor from libutun_lite/ to lib/ — shared library - audio_compressor.h/c moved to lib/ (alongside opus_codec, mem, debug_config) - lib/Makefile.am: added to libuasync_a_SOURCES - utun_sources.cmake: removed from _cfg_src (GLOB from lib/ picks it up) - tests/Makefile.am: test_audio_compressor added to check_PROGRAMS - test includes simplified (debug_config.h, mem.h — lib/ in include path)	2 months ago
evgeny	d22eac55f7	fix audio_compressor: flat array instead of ring buffer, +unit test (411 asserts) Ring buffer (pending_head/pending_tail/cap) replaced with simple flat array (pending_count/cap). u_realloc copies linearly but ring buffer needs memmove for wrap-around — mismatch caused SIGSEGV write to 0x10 on ARM64. Flat array: append to end, process from [0], memmove down. Performance unchanged (max ~15 blocks). Tests: create/destroy, passthrough disabled, basic push+flush, silence, reset, stress (200 cycles)	2 months ago
Evgeny	d4a396f888	media: Ed25519-подписи блоков, local_attrs, MediaBlockReader, файловые вложения	2 months ago
Evgeny	ed6132fcda	перенос chat-логики из chatgui/transport в src/chat/ - Создан src/chat/ с chat_event.h/c — система нотификаций - Перенесены chat_core, chat_msg, chat_channel, chat_profile, chat_status - Перенесены chat_sync, member_sync, merkle_sync, db_sync - gui_bridge_post() заменён на chat_event_post() с возможностью регистрации обработчика - chat_event_set_handler() — chatgui регистрирует мост в gui_bridge - Без обработчика: события логируются через DEBUG_DEBUG + log_dump - chat интегрирован в utun_instance.c (при db_path в конфиге) - Обновлены include-пути, Makefile.am, CMakeLists.txt - Из chatgui удалены старые transport/ файлы, обновлён utun_node.cpp	2 months ago
Evgeny	4fde0b0325	feat: integrate Opus codec into lib/libopus + voice messages in chatgui - Add lib/libopus/ (opus v1.6.1 embedded source: CELT 18 .c, SILK 77 .c, SILK float 28 .c, OPUS core 14 .c) - Add lib/opus_codec.h/.c (wrapper: encoder, decoder, raw PCM int16) - Add tests/test_opus_codec.c (7 tests: silence, sine, compression, PLC, null, defaults, multi-frame) - chatgui: AudioRecorder (miniaudio capture, 48kHz mono) - chatgui: VoiceEncoder (PCM→Opus file with custom container) - chatgui: VoicePlayer (Opus→PCM playback via SoundManager) - chatgui: PTT button in InputBar, voice message send/receive in MessageList - chatgui: AudioDeviceSettingsPage (device selection, persisted in ui_state) - chatgui: MessageDelegate voice message rendering (play button + duration) - Update autotools: configure.ac, Makefile.am, src/Makefile.am, tests/Makefile.am - Update CMake: chatgui CMakeLists.txt, libutun CMakeLists.txt (link libopus_internal.a)	2 months ago
Evgeny	ef1e064bdc	merkle_sync: broadcast relay for star topology + all 6 test stages pass - Replace active/synced with sess_state (SESS_SYNCING/SESS_SYNCED) - Add merkle_sync_broadcast() API for relaying changes to SYNCED peers - apply_items callback now receives from_peer parameter - _handle_hashes: reset pending_count on session reuse (overwrite fix) - _handle_batch: send broadcast to synced sessions on new items - Test Stage 5: sequential B->A + C->A with relay (no 3rd sync needed) - Test Stage 6: cancel + start_overwrite pass - Fix _wait_for: remove i_phase global timeout dependency	2 months ago
Evgeny	b9bde23d51	Stage 5 WIP: sequential syncs for 3-instance test, increased timeouts	2 months ago
Evgeny	a1ecab997e	merkle_sync: fix 4 protocol bugs + add test suite (Stages 1-4) - g_merkle singleton → per-instance msync (utun_instance.h) - level_prefix: off-by-one shift (63→64) - _handle_hashes: differs \|= for shared buckets with different hashes - _handle_batch: sub_pl double-level-offset (next_lvl→lvl) - pending[] array replaces pending_requests counter - member_sync: mask_shift 63→64 alignment - test_merkle_sync.c: prefix arithmetic, tree building, 2-instance integration, randomized 50-iter sync	2 months ago
Evgeny	27906e9f91	db_sync: односторонний sync, sparse-таблица, vp в SEND_DATA, PUSH-релей	2 months ago
Evgeny	e071a9e2f8	db_sync: fix test sync protocol isolation (add auto_sync flag, destroy order, test refactor) - utun_instance: fix destroy order (topo_groups before conn_mgr to avoid UAF in topo_recovery) - topo_recovery: add NULL guard for instance/ua in try_next - db_sync_instance_add: add auto_sync flag (1=send INIT_SYNC, 0=quiet) replaces separate _quiet variant, cleaner API - db_sync_peer_set_state, db_sync_reinitiate: test-only peer control utilities - test_db_sync: full rewrite — stable, isolated sync protocol testing all 3 branches (peer_empty, hash_MATCH, divergence) tested without PUSH contamination Phase 6 extended: triple merge + tail PUSH + mid PUSH cascade on star topology runs in 1.4s, consistently passes 10/10 - db_sync_doc: updated protocol architecture description - chatgui: update db_sync_instance_add call with auto_sync=1	2 months ago
Evgeny	c46cb9a979	db_sync: fix si_send_data_batch column bug (author→node_id), add cascade_from to PUSH, add divergence+cascade test phases - si_send_data_batch: неправильный SQL SELECT с несуществующей колонкой author вместо node_id → ломал всю передачу данных в REFINE/SEND_DATA - Добавлена проверка si_prep и возврат int с кодом ошибки - Все вызовы si_send_data_batch проверяют возврат, при ошибке сброс sync_state - db_handle_push: добавлен db_cascade_from после вставки (раньше chain_hash не пересчитывался после PUSH) - db_handle_refine: DEBUG_WARN при scnt==0 (fm за пределами диапазона) - Добавлена публичная db_sync_chain_verify() для верификации цепочек - test_db_sync: фаза 4 (divergence через разныe hashes + REFINE/SEND_DATA), фаза 5 (PUSH без хвоста + cascade verification) - Убран мёртвый код db_sync_on_new_conn - chatgui: адаптивная раскраска пузырей исходящих сообщений	2 months ago
Evgeny	f6b37a857b	conn_mgr: bind to topo_group, DB node loading, configurable DIRECT timeout, tests - conn_mgr_init(TOPO_GROUP* group) — работает внутри заданной группы - conn_mgr_connect_node: загрузка узла из SQLite если нет в BGP-таблице - topo_node_sqlite_node_load(): загрузка TOPO_NODE (ref=0) из БД - cm_start_phase_direct: db_loaded-ветка — перебор всех адресов без NAT-фильтра - cm_cleanup_db_node: удаление TOPO_NODEQ из группы при неудаче, только если нет путей - cm_start_phase_indirect: исправлено зависание при best_candidates==0 (cm_deliver_result) - conn_mgr_set_direct_timeout_ms(): конфигурируемый таймаут фазы DIRECT - conn_mgr_destroy до etcp_router_destroy (исправлен порядок) - test_conn_mgr: +2 сценария (DB-успех, DB-недоступен), проверка topo_group	2 months ago
Evgeny	852ce401e7	Добавлен group_id в etcp_router и topo_group, удалён msg_transport - etcp_router: SVC_ROUTE_HDR (+8B), ETCP_ROUTER_CONN/TRANSIT_QUEUE хеши расширены под group_id - Все caller'ы (proxy, routing, conn_mgr, nat, chatgui, tests) обновлены - topo_group: глобальный реестр TOPO_NODE по node_id, ref_count=0 при создании - BGP-обмен активируется для всех групп (а не только дефолтной) - Протокол: group_id добавлен в WITHDRAW/TABLE_REQ/TABLE_COMPLETE/ERR_GROUP_MISMATCH - Per-connection коллбэки заменены на instance-level conn_status - msg_transport полностью удалён из проекта 57/57 тестов	2 months ago
Evgeny	b1bf27d023	fix Windows warnings: getpid, htole64, gettimeofday, socket_t mismatches, radix min	2 months ago
Evgeny	17202beb0a	test_ntp: use compat headers instead of arpa/inet.h, add rule to AGENTS.md	2 months ago
Evgeny	fcf3fb7f51	refactor: move transport (etcp/stcp/normalizer) to transport_layer/, routing (bgp/pings/topo*) to routing_layer/	2 months ago
Evgeny	3dda701c67	schema: rm is_dm, rename name→userinfo (json_flat), fix join_msg format - Remove is_dm column from channels table (dm detection by member count) - Rename member name column to userinfo — extensible json_flat format - Add json_flat.c/h library for compact JSON serialization - Fix join_sig message format: use ch_x25519+ch_ed25519 instead of channel_id string - Remove name from join_msg body (now in userinfo via json_flat) - Update chat_core, chat_sync, member_sync, db_manager to new format - Add topo_strategy.txt — архитектурные заметки по топологии	2 months ago
Evgeny	501b636d19	topo_group: disable in chatgui; fix NAT detection for matching addresses - Add utun_instance_set_topo_group_enabled() flag (default=1, chatgui sets 0) - Move nat_detection create/destroy from topo_group.c to utun_instance.c (unconditional) - NAT detection: simplify third_node search (any connected node) - NAT detection: allow NULL topo_groups in receive_cbk and handlers - NAT detection: handle NAT_INFO without topo_group (update socket directly) - route_ping: make TOPO_GROUP optional in send_req_addr/handle_req - topo_node: when NAT verified and address matches interface, set entry type to NAT instead of INTERFACE + socket_id\|1 - topo_node: detect nat_type change in changed computation for rebuild - test_nat_detection: fix socket_id check (\|1 for NAT entries) - chatgui: call utun_instance_set_topo_group_enabled(0)	2 months ago
Evgeny	0e0ad9316a	fix race condition: DB_READY lost when utun thread starts before gui_bridge_init - mainwindow.cpp: swap setupMessaging() before setupNode() so g_receiver is created first - gui_bridge_impl.cpp: add DEBUG_WARN when gui_bridge_post drops event due to NULL g_receiver	3 months ago
Evgeny	93871c592b	db_sync: timeout for stuck sync_state=1, handle ERROR properly - Add sync_start_tb to SI_PEER, set in db_sync_initiate_sync - peer_check_cb: after 15s timeout reset sync_state=0 with WARN - db_handle_error: accept si, reset sync_state=0, DEBUG_ERROR with details - DB_SYNC_SYNC_TIMEOUT=15 added to db_sync.h	3 months ago
Evgeny	910cac8dce	refactor: separate NAT detection from topology into standalone nat_detection module - Extract NAT detection logic (~250 lines) from topo_group.c into new nat_detection.c - NAT_DETECTION struct owns ping_pending, next_ping_req_id, allow_nat_check_local (removed from TOPO_GROUP) - route_ping.* signatures changed: TOPO_GROUP* -> NAT_DETECTION* (+ TOPO_GROUP* where needed) - topo_group.c now only dispatches BGP subcommands to nat_detection_* handlers - UTUN_INSTANCE gets struct NAT_DETECTION* nat_det field (init/destroy in topo_groups_init/destroy) - External callers (etcp_connections, etcp, control_server) call nat_detection_* directly - nat_detection_cancel_for_conn / nat_detection_send_nat_info / nat_detection_link_ready / nat_detection_request_check_all - route_ping_destroy_pending properly implemented (was dead code) - TOPO_SUBCMD_PING_REQ/RESP moved from route_ping.h to topo_group.h (all BGP subcommands in one place) - Tests updated: test_nat_detection, test_route_ping - both PASSED - Build: auto(CORE_SOURCES+libutun) and cmake(chatgui/libutun)	3 months ago
Evgeny	960cde3eda	chatgui: add Status page in settings (NTP + connections status)	3 months ago
Evgeny	f0bb03c2cf	db_sync: datahash removed, Ed25519 signature mandatory, PK=(timestamp,author_signature), chain_hash includes signature, signed message=ts\|\|json	3 months ago
Evgeny	05b24d36bb	db_sync: fix dh_match premature sync complete — send tail when mc > tp+1 Root cause: db_handle_init_resp marked sync_state=2 when my_dh==peer_dh without checking that all my records fit in the confirmed prefix. If mc > tp+1 (I have records beyond the common prefix), the tail was never sent — lost records. Fix: - Remove special-case 'sc==0 && my_dh==peer_dh' (redundant, same bug) - In general dh_match: if mc > tp+1, send remaining records [tp+1,mc-1] using the same inline loop pattern as 'peer empty' branch Test: 3 phases covering all dh_match paths: - Phase 1: B empty+late instance → dh_match at tp=0 (sc=0) → tail-send 49 - Phase 2: A=80 B=50 → dh_match at tp=49 (sc>0, sparse) → tail-send 30 - Phase 3: fresh instances → peer empty → send all 30	3 months ago
Evgeny	bfa3e666d4	fix test_uasync_socket_race: increase listen() backlog from 32 to 1024 Root cause: accept queue overflow (backlog=32) caused kernel SYN drops. Children waited ~1s for SYN retransmit timeout (5 gaps × 1s = 5s out of 7.2s). With backlog=1024 the timeout drops from ~7.2s to ~0.065s (110× faster).	3 months ago
Evgeny	a8ce7d47b7	test_bgp_triangle: reduce keepalive_timeout from 2000ms to 200ms (10x speedup, 13.2s -> 1.27s)	3 months ago
Evgeny	3d04c37f56	stcp: add on_close callback to stcp_server_create/stcp_client_connect; member_sync: add join_ts/update_sig/update_ts fields, verify update_sig in apply; topo_node_sqlite: add join_ts/update_sig/update_ts to member_put, add member_get_join, add node_update_verified; chat_sync: include join_ts in join_msg, add update_sig/update_ts to CHANNEL_INFO_RESP; WELCOME verify join_sig; tests: use generated node_ids, reduce max ticks	3 months ago
Evgeny	03310db2cd	test_chat_sync_stress: simplify to 20 batches, add profiling (avg per-record time, sync time, total)	3 months ago
Evgeny	bb425c6722	db_sync v2: positional sync per-peer (synced_pos), datahash instead of chain_hash, no cascade on PUSH, single cascade after SEND_DATA batch, startup chain verification. PRAGMA synchronous=NORMAL + wal_autocheckpoint=10000 for performance.	3 months ago
Evgeny	a7ecee01f5	etcp: replace connections linked-list with indexed ll_queue, add state/ref_count lifecycle - Remove ETCP_CONN.next linked-list, UTUN_INSTANCE.connections list/count - Unified connections in single ll_queue indexed by peer_node_id (0=pending) - struct conn_queue_entry { peer_node_id, conn* } for uniform queue data - Connection lifecycle via etcp.c: create→pending, conn_ready→indexed, close→detach+deferred free - Close split: phase1 detach from external world, phase2 deferred via uasync_call_soon - etcp_conn_set_peer_node_id: reindex on ID change (WARN) - etcp_conn_ref_take/free: blocking close until refcount returns to 0 - Remove chat_connections — use unified connections queue directly - Update all iteration/search patterns across 40 files (src + tests + chatgui)	3 months ago
Evgeny	f617dcd68e	db_sync: LMDB→SQLite, multi-instance, etcp_api, chatgui integration - src/db_sync: LMDB replaced with SQLite (separate tables per instance: db_sync_name_id) TTL index (author, timestamp), WAL mode, per-instance peers/timers opaque DB_SYNC_INSTANCE* handle, insert callback, select API new fields: author_signature, delivered_peers, delivery_chain transport: etcp_api direct P2P (was etcp_router) - src/db_sync.h: user-oriented API docs, multi-instance lifecycle - lib/Makefile.am: liblmdb sources removed - lib/sqlite3.c+h: SQLite amalgamation added - topo_node: LMDB→SQLite (src/topo_node_sqlite.c moved from chatgui) - chatgui: real db_sync.c replaces db_sync_stub.c chat_core: db_sync_insert_signed + dual-write insert callback utun_node: db_sync_init/destroy replaces chat_sync_init/destroy CMakeLists: stubs removed, real db_sync.c added	3 months ago
Evgeny	cca3511503	fix: replace deprecated SHA256 API with EVP, conditional dl linkage for Windows	3 months ago

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354 Commits (f67bc23cd3791cd9a886769e979635077562d5b1)