7 - Add full CBOR stream parsing and writing support, with huge
8 amount of test vectors and resumable printf type write apis
9 See ./READMEs/README.cbor-lecp.md
10 - Add COSE key and signing / validation support with huge amount of
12 cose_sign[1] ES256/384/512, RS256/384/512
13 cose_mac0 HS256/384/512
14 See ./READMEs/README.cbor-cose.md
15 - JIT Trust: for constrained devices, provides a way to determine the
16 trusted CA certs the peer requires, and instantiate just those.
17 This allows generic client browsing without the overhead of ~130
18 x.509 CA certs in memory permanently.
19 See ./READMEs/README.jit-trust.md
20 - Add support for client Netscape cookie jar with caching
21 - Secure Streams: issue LWSSSCS_EVENT_WAIT_CANCELLED state() when
22 lws_cancel_service() called, so cross-thread events can be handled
24 - Actively assert() on attempt to destroy SS handles still active in
25 the call stack, use DESTROY_ME returns instead so caller can choose
27 - Improved Client Connection Error report strings for tls errors
28 - SMP: Use a private fakewsi for PROTOCOL_INIT so pts cannot try to
29 use the same one concurrently
30 - MbedTLS v3 support for all release changes, as well as retaining
32 - MQTT client: support QoS2
33 - Event lib ops can now be set at context creation time directly,
34 bringing full event lib hooking to custom event loops. See
35 minimal-http-server-eventlib-custom
36 - Extra APIs to recover AKID and SKID from x.509 in mbedtls and openssl
37 - Improve http redirect to handle h2-> h2 cleanly
38 - IPv4+6 listen sockets on vhosts are now done with two separate
39 sockets bound individually to AF_INET and AF_INET6 addresses,
40 handled by the same vhost listen flow.
41 - Improved tls restriction handling
42 - Log contexts: allow objects to log into local logging contexts, by
43 lws_context, vhost, wsi and ss handle. Each context has its own
44 emit function and log level. See ./READMEs/README.logging.md
45 - Upgrade compiler checking to default to -Werror -Wall -Wextra
46 - Fault injection apis now also support pseudo-random number binding
47 within a specified range, eg,
48 --fault-injection "f1(10%),f1_delay(123..456)"
49 - Remove LWS_WITH_DEPRECATED_THINGS, remove master branch
50 - Interface binding now uses ipv6 scoring to select bind address
55 - Sai coverage upgrades, 495 builds on 27 platforms, including OSX M1,
56 Xenial, Bionic and Focal Ubuntu, Debian Sid and Buster on both 32 and
57 64-bit OS, and NetBSD, Solaris, FreeBSD, Windows, ESP32.
58 Ctest run on more scenarios including all LWS_WITH_DISTRO_RECOMMENDED.
59 More tests use valgrind if available on platform.
60 - RFC7231 date and time parsing and retry-after wired up to lws_retry
61 - `LWS_WITH_SUL_DEBUGGING` checks that no sul belonging to Secure Streams
62 and wsi objects are left registered on destruction
63 - Netlink monitoring on Linux dynamically tracks interface address and
64 routing changes, and immediately closes connections on invalidated
66 - RFC6724 DNS results sorting over ipv4 + ipv6 results, according to
67 available dynamic route information
68 - Support new event library, sdevent (systemd native loop), via
70 - Reduce .rodata cost of role structs by making them sparse
71 - Additional Secure Streams QA tests and runtime state transition
73 - SMD-over-ss-proxy documentation and helpers to simplify forwarding
74 - SSPC stream buffering at proxy and client set from policy by streamtype
75 - Trigger Captive Portal Detection if DNS resolution fails
76 - Switch all logs related to wsi and Secure Streams to use unique,
77 descriptive tags instead of pointers (which may be reallocated)
78 - Use NOITCE logging for Secure Streams and wsi lifecycle logging using
80 - Update SSPC serialization to include versioning on initial handshake,
81 and pass client pid to proxy so related objects are tagged with it
82 - Enable errors on -Wconversion pedantic type-related build issues
83 throughout the lws sources and upgrade every affected cast.
84 - Windows remove WSA event implementation and replace with WSAPoll, with
85 a pair of UDP sockets instead of pipe() for `lws_cancel_service()`
86 - `lws_strcmp_wildcard()` helper that understand "x*", "x*y", "x*y*" etc
87 - `LWS_WITH_PLUGINS_BUILTIN` cmake option just builds plugins into the main
88 library image directly
89 - Secure Streams proxy supports policy for flow control between proxy and
91 - libressl also supported along with boringssl, wolfssl
92 - prepared for openssl v3 compatibility, for main function and GENCRYPTO
93 - Fault injection apis can confirm operation of 48 error paths and counting
94 - `LWS_WITH_SYS_METRICS` keeps stats and reports them to user-defined
95 function, compatible with openmetrics
96 - windows platform knows how to prepare openssl with system trust store certs
97 - `LWS_WITH_SYS_CONMON` allows selected client connections to make precise
98 measurements of connection performance and DNS results, and report them in a struct
99 - New native support for uloop event loop (OpenWRT loop)
100 - More options around JWT
101 - Support TLS session caching and reuse by default, on both OpenSSL and
103 - Many fixes and improvements...
108 - NEW: travis / appveyor / bintray are replaced by Sai
109 https://libwebsockets.org/sai/ which for lws currently does 193 builds per
110 git push on 16 platforms, all self-hosted. The homebrew bash scripts used
111 to select Minimal examples are replaced by CTest. Platforms currently
112 include Fedora/AMD/GCC, Windows/AMD/mingw32, Windows/AMD/mingw64, Android/
113 aarch64/LLVM, esp-idf (on WROVER-KIT and HELTEC physical boards), Fedora/
114 RISCV (on QEMU)/GCC, CentOS8/AMD/GCC, Gentoo/AMD/GCC, Bionic/AMD/GCC,
115 Linkit 7697, Focal/AMD/GCC, Windows (on QEMU)/AMD/MSVC,
116 Focal/aarch64-RPI4/GCC, iOS/aarch64/LLVM and OSX/AMD/LLVM.
118 - NEW: The single CMakeLists.txt has been refactored and modernized into smaller
119 CMakeLists.txt in the subdirectory along with the code that is being managed
120 for build by it. Build options are still listed in the top level as before
121 but the new way is much more maintainable.
123 - NEW: event lib support on Unix is now built into dynamically loaded plugins
124 and brought in at runtime, allowing all of the support to be built in
125 isolation without conflicts, and separately packaged with individual
126 dependencies. See ./READMEs/event-libs.md for details and how to force
127 the old static build into lws method.
129 - NEW: Captive Portal Detection. Lws can determine if the active default
130 route is able to connect to the internet, or is in a captive portal type
131 situation, by trying to connect to a remote server that will respond in an
132 unusual way, like provide a 204.
134 - NEW: Secure streams: Support system trust store if it exists
136 Support lws raw socket protocol in SS
137 Support Unix Domain Socket transport
139 - NEW: Windows: Support Unix Domain Sockets same as other platforms
141 - NEW: Windows: Build using native pthreads, async dns, ipv6 on MSVC
143 - NEW: lws_struct: BLOB support
145 - NEW: lws_sul: Now provides two sorted timer domains, a default one as
146 before, and another whose scheduled events are capable to wake the system from suspend
148 - NEW: System Message Distribution: lws_smd provides a very lightweight way
149 to pass short messages between subsystems both in RTOS type case where the
150 subsystems are all on the lws event loop, and in the case participants are in
151 different processes, using Secure Streams proxying. Participants register a bitmap
152 of message classes they care about; if no particpant cares about a particular message,
153 it is rejected at allocation time for the sender, making it cheap to provide messages
154 speculatively. See lib/system/smd/README.md for full details.
156 - NEW: lws_drivers: wrappers for SDK driver abstractions (or actual drivers)
157 See lib/drivers/README.md, example implementations
158 minimal-examples/embedded/esp32/esp-wrover-kit
160 - generic LED (by name) lib/drivers/led/README.md
161 - generic PWM, sophisticated interpolated table
162 sequencers with crossfade
163 - generic button (by name), with debounce and press classification
164 emitting rich SMD click, long-click, double-click,
165 down, repeat, up JSON messages
166 lib/drivers/button/README.md
167 - bitbang i2c on generic gpio (hw support can use same
169 - bitbang spi on generic gpio (hw support can use same
171 - generic display object, can be wired up to controller
172 drivers that hook up by generic i2c or spi,
173 generic backlight PWM sequencing and
174 blanking timer support
175 - generic settings storage: get and set blobs by name
176 - generic network device: netdev abstract class with
177 WIFI / Ethernet implementations
178 using underlying SDK APIs;
179 generic 80211 Scan managements
180 and credentials handling via
182 This is the new way to provide embedded platform
183 functionality that was in the past done like
184 esp32-factory. Unlike the old way, the new way has no
185 native apis in it and can be built on other SDK / SoCs
188 - NEW: Security-aware JWS JWT (JSON Web Tokens) apis are provided on top of the existing
189 JOSE / JWS apis. All the common algorithms are available along with some
190 high level apis like lws http cookie -> JWT struct -> lws http cookie.
192 - REMOVED: esp32-helper and friends used by esp32-factory now lws_drivers
195 - REMOVED: generic sessions and friends now JWT is provided
200 - NEW: Lws is now under the MIT license, see ./LICENSE for details
202 - NEW: GLIB native event loop support, lws + gtk example
204 - NEW: native lws MQTT client... supports client stream binding like h2 when
205 multiple logical connections are going to the same endpoint over MQTT, they
206 transparently and independently share the one connection + tls tunnel
208 - NEW: "Secure Streams"... if you are making a device with client connections
209 to the internet or cloud, this allows separation of the communications
210 policy (endpoints, tls cert validation, protocols, etc) from the code, with
211 the goal you can combine streams, change protocols and cloud provision, and
212 reflect that in the device's JSON policy document without having to change
215 - NEW: lws_system: New lightweight and efficient Asynchronous DNS resolver
216 implementation for both A and AAAA records, supports recursive (without
217 recursion in code) lookups, caching, and getaddrinfo() compatible results
218 scheme (from cache directly without per-consumer allocation). Able to
219 perform DNS lookups without introducing latency in the event loop.
221 - NEW: lws_system: ntpclient implementation with interface for setting system
222 time via lws_system ops
224 - NEW: lws_system: dhcpclient implementation
226 - NEW: Connection validity tracking, autoproduce PING/PONG for protocols that
227 support it if not informed that the connection has passed data in both
228 directions recently enough
230 - NEW: lws_retry: standardized exponential backoff and retry timing based
231 around backoff table and lws_sul
233 - NEW: there are official public helpers for unaligned de/serialization of all
234 common types, see eh, lws_ser_wu16be() in include/libwebsockets/lws-misc.h
236 - NEW: lws_tls_client_vhost_extra_cert_mem() api allows attaching extra certs
237 to a client vhost from DER in memory
239 - NEW: lws_system: generic blobs support passing auth tokens, per-connection
240 client certs etc from platform into lws
242 - NEW: public helpers to consume and produce ipv4/6 addresses in a clean way,
243 along with lws_sockaddr46 type now public. See eg, lws_sockaddr46-based
244 lws_sa46_parse_numeric_address(), lws_write_numeric_address()
245 in include/libwebsockets/lws-network-helper.h
247 - Improved client redirect handling, h2 compatibility
249 - NEW: lwsac: additional features for constant folding support (strings that
250 already are in the lwsac can be pointed to without copying again), backfill
251 (look for gaps in previous chunks that could take a new use size), and
252 lwsac_extend() so last use() can attempt to use more unallocated chunk space
254 - NEW: lws_humanize: apis for reporting scalar quanties like 1234 as "1.234KB"
255 with the scaled symbol strings passed in by caller
257 - NEW: freertos: support lws_cancel_service() by using UDP pair bound to lo,
258 since it doesn't have logical pipes
260 - NEW: "esp32" plat, which implemented freertos plat compatibility on esp32, is
261 renamed to "freertos" plat, targeting esp32 and other freertos platforms
263 - NEW: base64 has an additional api supporting stateful decode, where the input
264 is not all in the same place at the same time and can be processed
267 - NEW: lws ws proxy: support RFC8441
269 - NEW: lws_spawn_piped apis: generic support for vforking a process with child
270 wsis attached to its stdin, stdout and stderr via pipes. When processes are
271 reaped, a specified callback is triggered. Currently Linux + OSX.
273 - NEW: lws_fsmount apis: Linux-only overlayfs mount and unmount management for
274 aggregating read-only layers with disposable, changeable upper layer fs
276 - Improvements for RTOS / small build case bring the footprint of lws v4 below
279 - lws_tokenize: flag specifying # should mark rest of line as comment
281 - NEW: minimal example for integrating libasound / alsa via raw file
283 - lws_struct: sqlite and json / lejp translation now usable
289 - This is the last planned release under LGPLv2+SLE. It's not planned to be
290 maintained like previous releases, please switch to master for the latest
291 stuff or continue to use v3.1-stable until the next release under the
294 - NEW: completely refactored scheduler with a unified, sorted us-resolution
295 linked-list implementation. All polled checks like timeout are migrated
296 to use the new timers, which also work on the event lib implementations.
297 Faster operation, us-resolution timeouts and generic scheduled callbacks
300 - NEW: lws_dsh specialized buffer memory allocator that can borrow space
301 from other cooperating buffers on the same list.
303 - NEW: lws_sequencer allows managing multi-connection processes and
306 - NEW: memory buffer cert support
308 - NEW: LWS_WITH_NETWORK in CMake... can be configured without any network-
311 - NEW: builds on QNX 6.5 and SmartOS
313 - NEW: JOSE / JWK / JWS / JWE support, for all common ciphers and algs,
314 works on OpenSSL and mbedtls backends
316 - NEW: gencrypto now has genaes and genec in addition to genrsa, works
317 on OpenSSL and mbedtls backends
319 - NEW: raw_proxy role
321 - NEW: Basic Auth works on ws connections
323 - CHANGE: REMOVED: LWS_WITH_GENRSA, LWS_WITH_GENHASH, LWS_WITH_GENEC,
324 LWS_WITH_GENAES have all been removed and combined into LWS_WITH_GENCRYPTO
326 - CHANGE: REMOVED: LWS_WITH_JWS, LWS_WITH_JWE have been removed and combined
332 - CHANGE: REMOVED: lws_client_connect() and lws_client_connect_extended()
333 compatibility apis for lws_client_connect_via_info() have been marked as
334 deprecated for several versions and are now removed. Use
335 lws_client_connect_via_info() directly instead.
338 - LWS_WITH_HTTP2: now defaults ON
340 - CHANGE: Minimal examples updated to use Content Security Policy best
342 `LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE` vhost
343 option flag and disabling of inline style and scripts. A side-effect of
344 this is that buffers used to marshal headers have to be prepared to take
345 more content than previously... LWS_RECOMMENDED_MIN_HEADER_SPACE (2048
346 currently) is available for user (and internal) use to logically tie the
347 buffer size to this usecase (and follow future increases).
350 - LWS_FOR_GITOHASHI: sets various cmake options suitable for gitohashi
351 - LWS_WITH_ASAN: for Linux, enable build with ASAN
353 Don't forget LWS_WITH_DISTRO_RECOMMENDED, which enables a wide range of lws
354 options suitable for a distro build of the library.
356 - NEW: lws threadpool - lightweight pool of pthreads integrated to lws wsi, with
357 all synchronization to event loop handled internally, queue for excess tasks
358 [threadpool docs](https://libwebsockets.org/git/libwebsockets/tree/lib/misc/threadpool)
359 [threadpool minimal example](https://libwebsockets.org/git/libwebsockets/tree/minimal-examples/ws-server/minimal-ws-server-threadpool)
360 Cmake config: `-DLWS_WITH_THREADPOOL=1`
362 - NEW: libdbus support integrated on lws event loop
363 [lws dbus docs](https://libwebsockets.org/git/libwebsockets/tree/lib/roles/dbus)
364 [lws dbus client minimal examples](https://libwebsockets.org/git/libwebsockets/tree/minimal-examples/dbus-client)
365 [lws dbus server minimal examples](https://libwebsockets.org/git/libwebsockets/tree/minimal-examples/dbus-server)
366 Cmake config: `-DLWS_ROLE_DBUS=1`
368 - NEW: lws allocated chunks (lwsac) - helpers for optimized mass allocation of small
369 objects inside a few larger malloc chunks... if you need to allocate a lot of
370 inter-related structs for a limited time, this removes per-struct allocation
371 library overhead completely and removes the need for any destruction handling
372 [lwsac docs](https://libwebsockets.org/git/libwebsockets/tree/lib/misc/lwsac)
373 [lwsac minimal example](https://libwebsockets.org/git/libwebsockets/tree/minimal-examples/api-tests/api-test-lwsac)
374 Cmake Config: `-DLWS_WITH_LWSAC=1`
376 - NEW: lws tokenizer - helper api for robustly tokenizing your own strings without
377 allocating or adding complexity. Configurable by flags for common delimiter
378 sets and comma-separated-lists in the tokenizer. Detects and reports syntax
380 [lws_tokenize docs](https://libwebsockets.org/git/libwebsockets/tree/include/libwebsockets/lws-tokenize.h)
381 [lws_tokenize minimal example / api test](https://libwebsockets.org/git/libwebsockets/tree/minimal-examples/api-tests/api-test-lws_tokenize)
383 - NEW: lws full-text search - optimized trie generation, serialization,
384 autocomplete suggestion generation and instant global search support extensible
385 to huge corpuses of UTF-8 text while remaining super lightweight on resources.
386 [full-text search docs](https://libwebsockets.org/git/libwebsockets/tree/lib/misc/fts)
387 [full-text search minimal example / api test](https://libwebsockets.org/git/libwebsockets/tree/minimal-examples/api-tests/api-test-fts)
388 [demo](https://libwebsockets.org/ftsdemo/)
389 [demo sources](https://libwebsockets.org/git/libwebsockets/tree/plugins/protocol_fulltext_demo.c)
390 Cmake config: `-DLWS_WITH_FTS=1 -DLWS_WITH_LWSAC=1`
392 - NEW: gzip + brotli http server-side compression - h1 and h2 automatic advertising
393 of server compression and application to files with mimetypes "text/*",
394 "application/javascript" and "image/svg.xml".
395 Cmake config: `-DLWS_WITH_HTTP_STREAM_COMPRESSION=1`, `-DLWS_WITH_HTTP_BROTLI=1`
397 - NEW: managed disk cache - API for managing a directory containing cached files
398 with hashed names, and automatic deletion of LRU files once the cache is
400 [lws diskcache docs](https://libwebsockets.org/git/libwebsockets/tree/include/libwebsockets/lws-diskcache.h)
401 Cmake config: `-DLWS_WITH_DISKCACHE=1`
403 - NEW: http reverse proxy - lws mounts support proxying h1 or h2 requests to
404 a local or remote IP, or unix domain socket over h1. This allows microservice
405 type architectures where parts of the common URL space are actually handled
406 by external processes which may be remote or on the same machine.
407 [lws gitohashi serving](https://libwebsockets.org/git/) is handled this way.
408 CMake config: `-DLWS_WITH_HTTP_PROXY=1`
410 - NEW: lws_buflist - internally several types of ad-hoc malloc'd buffer have
411 been replaced by a new, exported api `struct lws_buflist`. This allows
412 multiple buffers to be chained and drawn down in strict FIFO order.
414 - NEW: In the case of h1 upgrade, the connection header is checked to contain
415 "upgrade". The vhost flag LWS_SERVER_OPTION_VHOST_UPG_STRICT_HOST_CHECK
416 also causes the Host: header to be confirmed to match the vhost name and
419 - NEW: If no 404 redirect for `lws_return_http_status()` is specified for the vhost,
420 the status page produced will try to bring in a stylesheet `/error.css`. This allows
421 you to produce styled 404 or other error pages with logos, graphics etc. See
422 https://libwebsockets.org/git/badrepo for an example of what you can do with it.
427 - CHANGE: Clients used to call LWS_CALLBACK_CLOSED same as servers...
428 LWS_CALLBACK_CLIENT_CLOSED has been introduced and is called for clients
431 - CHANGE: LWS_CALLBACK_CLIENT_CONNECTION_ERROR used to only be directed at
432 protocols[0]. However in many cases, the protocol to bind to was provided
433 at client connection info time and the wsi bound accordingly. In those
434 cases, CONNECTION_ERROR is directed at the bound protocol, not protcols[0]
437 - CHANGE: CMAKE: the following cmake defaults have changed with this version:
439 - LWS_WITH_ZIP_FOPS: now defaults OFF
440 - LWS_WITH_RANGES: now defaults OFF
441 - LWS_WITH_ZLIB: now defaults OFF
442 - LWS_WITHOUT_EXTENSIONS: now defaults ON
444 - CHANGE: REMOVED: lws_alloc_vfs_file() (read a file to malloc buffer)
446 - CHANGE: REMOVED: lws_read() (no longer useful outside of lws internals)
448 - CHANGE: REMOVED: ESP8266... ESP32 is now within the same price range and much
451 - CHANGE: soname bump... don't forget to `ldconfig`
453 - NEW: all event libraries support "foreign" loop integration where lws itself
454 if just a temporary user of the loop unrelated to the actual loop lifecycle.
456 See `minimal-http-server-eventlib-foreign` for example code demonstrating
457 this for all the event libraries.
459 Internal loop in lws is also supported and demonstrated by
460 `minimal-http-server-eventlib`.
462 - NEW: ws-over-h2 support. This is a new RFC-on-the-way supported by Chrome
463 and shortly firefox that allows ws connections to be multiplexed back to the
464 server on the same tcp + tls wrapper h2 connection that the html and scripts
465 came in on. This is hugely faster that discrete connections.
467 - NEW: UDP socket adoption and related event callbacks
469 - NEW: Multi-client connection binding, queuing and pipelining support.
471 Lws detects multiple client connections to the same server and port, and
472 optimizes how it handles them according to the server type and provided
473 flags. For http/1.0, all occur with individual parallel connections. For
474 http/1.1, you can enable keepalive pipelining, so the connections occur
475 sequentially on a single network connection. For http/2, they all occur
476 as parallel streams within a single h2 network connection.
478 See minimal-http-client-multi for example code.
480 - NEW: High resolution timer API for wsi, get a callback on your wsi with
481 LWS_CALLBACK_TIMER, set and reset the timer with lws_set_timer_usecs(wsi, us)
482 Actual resolution depends on event backend. Works with all backends, poll,
483 libuv, libevent, and libev.
485 - NEW: Protocols can arrange vhost-protocol instance specific callbacks with
486 second resolution using `lws_timed_callback_vh_protocol()`
488 - NEW: ACME client plugin for self-service TLS certificates
490 - NEW: RFC7517 JSON Web Keys RFC7638 JWK thumbprint, and RFC7515 JSON Web
493 - NEW: lws_cancel_service() now provides a generic way to synchronize events
494 from other threads, which appear as a LWS_CALLBACK_EVENT_WAIT_CANCELLED
495 callback on all protocols. This is compatible with all the event libraries.
497 - NEW: support BSD poll() where changes to the poll wait while waiting are
500 - NEW: Introduce generic hash, hmac and RSA apis that operate the same
501 regardless of OpenSSL or mbedTLS tls backend
503 - NEW: Introduce X509 element query api that works the same regardless of
504 OpenSSL or mbedTLS tls backend
506 - NEW: Introduce over 30 "minimal examples" in ./minimal-examples... these
507 replace most of the old test servers
509 - test-echo -> minimal-ws-server-echo and minimal-ws-client-echo
511 - test-server-libuv / -libevent / -libev ->
512 minimal-https-server-eventlib / -eventlib-foreign / -eventlib-demos
514 - test-server-v2.0 -> folded into all the minimal servers
516 - test-server direct http serving -> minimal-http-server-dynamic
518 The minimal examples allow individual standalone build using their own
519 small CMakeLists.txt.
521 - NEW: lws now detects any back-to-back writes that did not go through the
522 event loop inbetween and reports them. This will flag any possibility of
523 failure rather than wait until the problem happens.
525 - NEW: CMake has LWS_WITH_DISTRO_RECOMMENDED to select features that are
526 appropriate for distros
528 - NEW: Optional vhost URL `error_document_404` if given causes a redirect there
529 instead of serve the default 404 page.
531 - NEW: lws_strncpy() wrapper guarantees NUL in copied string even if it was
534 - NEW: for client connections, local protocol binding name can be separated
535 from the ws subprotocol name if needed, using .local_protocol_name
537 - NEW: Automatic detection of time discontiguities
539 - NEW: Applies TCP_USER_TIMEOUT for Linux tcp keepalive where available
541 - QA: 1600 tests run on each commit in Travis CI, including almost all
542 Autobahn in client and server mode, various h2load tests, h2spec, attack.sh
543 the minimal example selftests and others.
545 - QA: fix small warnings introduced on gcc8.x (eg, Fedora 28)
547 - QA: Add most of -Wextra on gcc (-Wsign-compare, -Wignored-qualifiers,
548 -Wtype-limits, -Wuninitialized)
550 - QA: clean out warnings on windows
552 - QA: pass all 146 h2spec tests now on strict
554 - QA: introduce 35 selftests that operate different minimal examples against
555 each other and confirm the results.
557 - QA: LWS_WITH_MINIMAL_EXAMPLES allows mass build of all relevant minimal-
558 examples with the LWS build, for CI and to make all the example binaries
559 available from the lws build dir ./bin
561 - REFACTOR: the lws source directory layout in ./lib has been radically
562 improved, and there are now README.md files in selected subdirs with extra
563 documentation of interest to people working on lws itself.
565 - REFACTOR: pipelined transactions return to the event loop before starting the
568 - REFACTOR: TLS: replace all TLS library constants with generic LWS ones and
569 adapt all the TLS library code to translate to these common ones.
571 Isolated all the tls-related private stuff in `./lib/tls/private.h`, and all
572 the mbedTLS stuff in `./lib/tls/mbedtls` + openSSL stuff in
575 - REFACTOR: the various kinds of wsi possible with lws have been extracted
576 from the main code and isolated into "roles" in `./lib/roles` which
577 communicate with the core code via an ops struct. Everything related to
578 ah is migrated to the http role.
580 wsi modes are eliminated and replaced by the ops pointer for the role the
581 wsi is performing. Generic states for wsi are available to control the
582 lifecycle using core code.
584 Adding new "roles" is now much easier with the changes and ops struct to
587 - REFACTOR: reduce four different kinds of buffer management in lws into a
588 generic scatter-gather struct lws_buflist.
590 - REFACTOR: close notifications go through event loop
596 - HTTP/2 server support is now mature and usable! LWS_WITH_HTTP2=1 enables it.
597 Uses ALPN to serve HTTP/2, HTTP/1 and ws[s] connections all from the same
598 listen port seamlessly. (Requires ALPN-capable OpenSSL 1.1 or mbedTLS).
600 - LWS_WITH_MBEDTLS=1 at CMake now builds and works against mbedTLS instead of
601 OpenSSL. Most things work identically, although on common targets where
602 OpenSSL has acceleration, mbedTLS is many times slower in operation. However
603 it is a lot smaller codewise.
605 - Generic hash apis introduced that work the same on mbedTLS or OpenSSL backend
607 - LWS_WITH_PEER_LIMITS tracks IPs across all vhosts and allows restrictions on
608 both the number of simultaneous connections and wsi in use for any single IP
610 - lws_ring apis provide a generic single- or multi-tail ringbuffer... mirror
611 protocol now uses this. Features include ring elements may be sized to fit
612 structs in the ringbuffer, callback when no tail any longer needs an element
613 and it can be deleted, and zerocopy options to write new members directly
614 into the ringbuffer, and use the ringbuffer element by address too.
616 - abstract ssh 2 server plugin included, with both plugin and standalone
617 demos provided. You can bind the plugin to a vhost and also serve full-
618 strength ssh from the vhost. IO from the ssh server is controlled by an
619 "ops" struct of callbacks for tx, rx, auth etc.
621 - Many fixes, cleanups, source refactors and other improvements.
627 - ESP32 OpenSSL support for client and server
629 - ESP32 4 x WLAN credential slots may be configured
631 - Libevent event loop support
633 - SOCKS5 proxy support
635 - lws_meta protocol for websocket connection multiplexing
637 - lws_vhost_destroy() added... allows dynamic removal of listening
638 vhosts. Vhosts with shared listen sockets adopt the listen socket
639 automatically if the owner is destroyed.
643 - Improved CGI handling suitable for general CGI scripting, eg, PHP
645 - Convert even the "old style" test servers to use statically included
648 - LWS_WITH_STATS cmake option dumps resource usage and timing information
649 every few seconds to debug log, including latency information about
650 delay from asking for writeable callback to getting it
652 - Large (> 2GB) files may be served
654 - LWS_WITH_HTTP_PROXY Cmake option adds proxying mounts
656 - Workaround for libev build by disabling -Werror on the test app
658 - HTTP2 support disabled since no way to serve websockets on it
666 - A mount can be protected by Basic Auth... in lwsws it looks like this
670 "mountpoint": "/basic-auth",
671 "origin": "file://_lws_ddir_/libwebsockets-test-server/private",
672 "basic-auth": "/var/www/balogins-private"
676 The text file named in `basic-auth` contains user:password information
679 See README.lwsws.md for more information.
681 - RFC7233 RANGES support in lws server... both single and multipart.
682 This allows seeking for multimedia file serving and download resume.
683 It's enabled by default but can be disabled by CMake option.
685 - On Linux, lwsws can reload configuration without dropping ongoing
686 connections, when sent a SIGHUP. The old configuration drops its
687 listen sockets so the new configuration can listen on them.
688 New connections connect to the server instance with the new
689 configuration. When all old connections eventually close, the old
690 instance automatically exits. This is equivalent to
691 `systemctl reload apache`
693 - New `adopt` api allow adoption including SSL negotiation and
694 for raw sockets and file descriptors.
696 - Chunked transfer encoding supported for client and server
698 - Adaptations to allow operations inside OPTEE Secure World
700 - ESP32 initial port - able to do all test server functions. See
703 - Serving gzipped files from inside a ZIP file is supported... this
704 includes directly serving the gzipped content if the client
705 indicated it could accept it (ie, almost all browsers) saving
706 bandwidth and time. For clients that can't accept it, lws
707 automatically decompresses and serves the content in memory-
708 efficient chunks. Only a few hundred bytes of heap are needed
709 to serve any size file from inside the zip. See README.coding.md
711 - RAW file descriptors may now be adopted into the lws event loop,
712 independent of event backend (including poll service).
715 - RAW server socket descriptors may now be enabled on the vhost if
716 the first thing sent on the connection is not a valid http method.
717 The user code can associate these with a specific protocol per
718 vhost, and RAW-specific callbacks appear there for creation, rx,
719 writable and close. See libwebsockets-test-server-v2.0 for an example.
722 - RAW client connections are now possible using the method "RAW".
723 After connection, the socket is associated to the protocol
724 named in the client connection info and RAW-specific callbacks
725 appear there for creation, rx, writable and close.
726 See libwebsockets-test-client (with raw://) for an example.
730 (for earlier changelogs, see the tagged releases)
projects / platform / upstream / libwebsockets.git / blob