7 1) OpenSSL version tests not needed on LibreSSL and BoringSSL
16 - There are only api additions, the api is compatible with v1.7.x. But
17 there is necessarily an soname bump to 8.
19 - If you are using lws client, you mainly need to be aware the option
20 LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT is needed at context-creation time
23 - If you are using lws for serving, the above is also true but there are
24 many new features to simplify your code (and life). There is a
27 https://libwebsockets.org/lws-2.0-new-features.html
29 but basically the keywords are vhosts, mounts and plugins. You can now
30 do the web serving part from lws without any user callback code at all.
31 See ./test-server/test-server-v2.0.c for an example, it has no user
32 code for ws either since it uses the protocol plugins... that one C file
33 is all that is needed to do the whole test server function.
35 You now have the option to use a small generic ws-capable webserver
36 "lwsws" and write your ws part as a plugin. That eliminates even
37 cut-and-pasting the test server code and offers more configurable
38 features like control over http cacheability in JSON.
44 These are already in 1.7.x series
46 1) MAJOR (Windows-only) fix assert firing
48 2) MAJOR http:/1.1 connections handled by lws_return_http_status() did not
49 get sent a content-length resulting in the link hanging until the peer closed
50 it. attack.sh updated to add a test for this.
52 3) MINOR An error about hdr struct in _lws_ws_related is corrected, it's not
53 known to affect anything until after it was fixed
55 4) MINOR During the close shutdown wait state introduced at v1.7, if something
56 requests callback on writeable for the socket it will busywait until the
59 5) MAJOR Although the test server has done it for a few versions already, it
60 is now required for the user code to explicitly call
62 if (lws_http_transaction_completed(wsi))
65 when it finishes replying to a transaction in http. Previously the library
66 did it for you, but that disallowed large, long transfers with multiple
67 trips around the event loop (and cgi...).
69 6) MAJOR connections on ah waiting list that closed did not get removed from
72 7) MAJOR since we added the ability to hold an ah across http keepalive
73 transactions where more headers had already arrived, we broke the ability
74 to tell if more headers had arrived. Result was if the browser didn't
75 close the keepalive, we retained ah for the lifetime of the keepalive,
78 8) MAJOR windows-only-POLLHUP was not coming
80 9) Client should not send ext hdr if no exts
85 1) MINOR test-server gained some new switches
87 -C <file> use external SSL cert file
88 -K <file> use external SSL key file
89 -A <file> use external SSL CA cert file
91 -u <uid> set effective uid
92 -g <gid> set effective gid
94 together you can use them like this to have the test-server work with the
95 usual purchased SSL certs from an official CA.
97 --ssl -C your.crt -K your.key -A your.cer -u 99 -g 99
99 2) MINOR the OpenSSL magic to setup ECDH cipher usage is implemented in the
100 library, and the ciphers restricted to use ECDH only.
101 Using this, the lws test server can score an A at SSLLABS test
103 3) MINOR STS (SSL always) header is added to the test server if you use --ssl. With
104 that, we score A+ at SSLLABS test
106 4) MINOR daemonize function (disabled at cmake by default) is updated to work
109 5) MINOR example systemd .service file now provided for test server
110 (not installed by default)
112 6) test server html is updated with tabs and a new live server monitoring
113 feature. Input sanitization added to the js.
115 7) client connections attempted when no ah is free no longer fail, they are
116 just deferred until an ah becomes available.
118 8) The test client pays attention to if you give it an http:/ or https://
119 protocol string to its argument in URL format. If so, it stays in http[s]
120 client mode and doesn't upgrade to ws[s], allowing you to do generic http client
121 operations. Receiving transfer-encoding: chunked is supported.
123 9) If you enable -DLWS_WITH_HTTP_PROXY=1 at cmake, the test server has a
124 new URI path http://localhost:7681/proxytest If you visit here, a client
125 connection to http://example.com:80 is spawned, and the results piped on
126 to your original connection.
128 10) Also with LWS_WITH_HTTP_PROXY enabled at cmake, lws wants to link to an
129 additional library, "libhubbub". This allows lws to do html rewriting on the
130 fly, adjusting proxied urls in a lightweight and fast way.
132 11) There's a new context creation flag LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT,
133 this is included automatically if you give any other SSL-related option flag.
134 If you give no SSL-related option flag, nor this one directly, then even
135 though SSL support may be compiled in, it is never initialized nor used for the
136 whole lifetime of the lws context.
138 Conversely in order to prepare the context to use SSL, even though, eg, you
139 are not listening on SSL but will use SSL client connections later, you must
140 give this flag explicitly to make sure SSL is initialized.
146 1) MINOR APIBREAK There's a new member in struct lws_context_creation_info, ecdh_curve,
147 which lets you set the name of the ECDH curve OpenSSL should use. By
148 default (if you leave ecdh_curve NULL) it will use "prime256v1"
150 2) MINOR NEWAPI It was already possible to adopt a foreign socket that had not
151 been read from using lws_adopt_socket() since v1.7. Now you can adopt a
152 partially-used socket if you don't need SSL, by passing it what you read
153 so it can drain that before reading from the socket.
155 LWS_VISIBLE LWS_EXTERN struct lws *
156 lws_adopt_socket_readbuf(struct lws_context *context, lws_sockfd_type accept_fd,
157 const char *readbuf, size_t len);
159 3) MINOR NEWAPI CGI type "network io" subprocess execution is now possible from
162 LWS_VISIBLE LWS_EXTERN int
163 lws_cgi(struct lws *wsi, char * const *exec_array, int script_uri_path_len,
166 LWS_VISIBLE LWS_EXTERN int
167 lws_cgi_kill(struct lws *wsi);
169 To use it, you must first set the cmake option
171 $ cmake .. -DLWS_WITH_CGI=1
173 See test-server-http.c and test server path
175 http://localhost:7681/cgitest
177 stdin gets http body, you can test it with wget
179 $ echo hello > hello.txt
180 $ wget http://localhost:7681/cgitest --post-file=hello.txt -O- --quiet
184 The test script returns text/html table showing /proc/meminfo. But the cgi
185 support is complete enough to run cgit cgi.
187 4) There is a helper api for forming logging timestamps
190 lwsl_timestamp(int level, char *p, int len)
192 this generates this kind of timestamp for use as logging preamble
194 lwsts[13116]: [2016/01/25 14:52:52:8386] NOTICE: Initial logging level 7
196 5) struct lws_client_connect_info has a new member
200 If it's NULL, then everything happens as before, lws_client_connect_via_info()
201 makes a ws or wss connection to the address given.
203 If you set method to a valid http method like "GET", though, then this method
204 is used and the connection remains in http[s], it's not upgraded to ws[s].
206 So with this, you can perform http[s] client operations as well as ws[s] ones.
208 There are 4 new related callbacks
210 LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP = 44,
211 LWS_CALLBACK_CLOSED_CLIENT_HTTP = 45,
212 LWS_CALLBACK_RECEIVE_CLIENT_HTTP = 46,
213 LWS_CALLBACK_COMPLETED_CLIENT_HTTP = 47,
215 6) struct lws_client_connect_info has a new member
217 const char *parent_wsi
219 if non-NULL, the client wsi is set to be a child of parent_wsi. This ensures
220 if parent_wsi closes, then the client child is closed just before.
222 7) If you're using SSL, there's a new context creation-time option flag
223 LWS_SERVER_OPTION_REDIRECT_HTTP_TO_HTTPS. If you give this, non-ssl
224 connections to the server listen port are accepted and receive a 301
225 redirect to / on the same host and port using https://
227 8) User code may set per-connection extension options now, using a new api
228 "lws_set_extension_option()".
230 This should be called from the ESTABLISHED callback like this
232 lws_set_extension_option(wsi, "permessage-deflate",
233 "rx_buf_size", "12"); /* 1 << 12 */
235 If the extension is not active (missing or not negotiated for the
236 connection, or extensions are disabled on the library) the call is
237 just returns -1. Otherwise the connection's extension has its
238 named option changed.
240 The extension may decide to alter or disallow the change, in the
241 example above permessage-deflate restricts the size of his rx
242 output buffer also considering the protocol's rx_buf_size member.
245 New application lwsws
246 ---------------------
248 A libwebsockets-based general webserver is built by default now, lwsws.
250 It's configured by JSON, by default in
254 which contains global lws context settings like this
267 which contains zero or more files describing vhosts, like this
271 { "name": "warmcat.com",
273 "host-ssl-key": "/etc/pki/tls/private/warmcat.com.key",
274 "host-ssl-cert": "/etc/pki/tls/certs/warmcat.com.crt",
275 "host-ssl-ca": "/etc/pki/tls/certs/warmcat.com.cer",
278 { "home": "file:///var/www/warmcat.com" },
279 { "default": "index.html" }
295 1) There is now a "permessage-deflate" / RFC7692 implementation. It's very
296 similar to "deflate-frame" we have offered for a long while; deflate-frame is
297 now provided as an alias of permessage-deflate.
299 The main differences are that the new permessage-deflate implementation:
301 - properly performs streaming respecting input and output buffer limits. The
302 old deflate-frame implementation could only work on complete deflate input
303 and produce complete inflate output for each frame. The new implementation
304 only mallocs buffers at initialization.
306 - goes around the event loop after each input package is processed allowing
307 interleaved output processing. The RX flow control api can be used to
308 force compressed input processing to match the rate of compressed output
309 processing (test--echo shows an example of how to do this).
311 - when being "deflate-frame" for compatibility he uses the same default zlib
312 settings as the old "deflate-frame", but instead of exponentially increasing
313 malloc allocations until the whole output will fit, he observes the default
314 input and output chunking buffer sizes of "permessage-deflate", that's
315 1024 in and 1024 out at a time.
317 2) deflate-stream has been disabled for many versions (for over a year) and is
318 now removed. Browsers are now standardizing on "permessage-deflate" / RFC7692
320 3) struct lws_extension is simplified, and lws extensions now have a public
321 api (their callback) for use in user code to compose extensions and options
322 the user code wants. lws_get_internal_exts() is deprecated but kept around
323 as a NOP. The changes allow one extension implementation to go by different
324 names and allows the user client code to control option offers per-ext.
326 The test client and server are updated to use the new way. If you use
327 the old way it should still work, but extensions will be disabled until you
330 Extensions are now responsible for allocating and per-instance private struct
331 at instance construction time and freeing it when the instance is destroyed.
332 Not needing to know the size means the extension's struct can be opaque
339 1) The info struct gained three new members
341 - max_http_header_data: 0 for default (1024) or set the maximum amount of known
342 http header payload that lws can deal with. Payload in unknown http
343 headers is dropped silently. If for some reason you need to send huge
344 cookies or other HTTP-level headers, you can now increase this at context-
347 - max_http_header_pool: 0 for default (16) or set the maximum amount of http
348 headers that can be tracked by lws in this context. For the server, if
349 the header pool is completely in use then accepts on the listen socket
350 are disabled until one becomes free. For the client, if you simultaneously
351 have pending connects for more than this number of client connections,
352 additional connects will fail until some of the pending connections timeout
355 - timeout_secs: 0 for default (currently 20s), or set the library's
356 network activity timeout to the given number of seconds
358 HTTP header processing in lws only exists until just after the first main
359 callback after the HTTP handshake... for ws connections that is ESTABLISHED and
360 for HTTP connections the HTTP callback.
362 So these settings are not related to the maximum number of simultaneous
363 connections, but the number of HTTP handshakes that may be expected or ongoing,
364 or have just completed, at one time. The reason it's useful is it changes the
365 memory allocation for header processing to be one-time at context creation
366 instead of every time there is a new connection, and gives you control over
369 Setting max_http_header_pool to 1 is fine it will just queue incoming
370 connections before the accept as necessary, you can still have as many
371 simultaneous post-header connections as you like. Since the http header
372 processing is completed and the allocation released after ESTABLISHED or the
373 HTTP callback, even with a pool of 1 many connections can be handled rapidly.
375 2) There is a new callback that allows the user code to get acccess to the
376 optional close code + aux data that may have been sent by the peer.
378 LWS_CALLBACK_WS_PEER_INITIATED_CLOSE:
379 The peer has sent an unsolicited Close WS packet. @in and
380 @len are the optional close code (first 2 bytes, network
381 order) and the optional additional information which is not
382 defined in the standard, and may be a string or non-human-
384 If you return 0 lws will echo the close and then close the
385 connection. If you return nonzero lws will just close the
388 As usual not handling it does the right thing, if you're not interested in it
391 The test server has "open and close" testing buttons at the bottom, if you
392 open and close that connection, on close it will send a close code 3000 decimal
393 and the string "Bye!" as the aux data.
395 The test server dumb-increment callback handles this callback reason and prints
397 lwsts[15714]: LWS_CALLBACK_WS_PEER_INITIATED_CLOSE: len 6
398 lwsts[15714]: 0: 0x0B
399 lwsts[15714]: 1: 0xB8
400 lwsts[15714]: 2: 0x42
401 lwsts[15714]: 3: 0x79
402 lwsts[15714]: 4: 0x65
403 lwsts[15714]: 5: 0x21
405 3) There is a new API to allow the user code to control the content of the
406 close frame sent when about to return nonzero from the user callback to
407 indicate the connection should close.
410 * lws_close_reason - Set reason and aux data to send with Close packet
411 * If you are going to return nonzero from the callback
412 * requesting the connection to close, you can optionally
413 * call this to set the reason the peer will be told if
416 * @wsi: The websocket connection to set the close reason on
417 * @status: A valid close status from websocket standard
418 * @buf: NULL or buffer containing up to 124 bytes of auxiliary data
419 * @len: Length of data in @buf to send
421 LWS_VISIBLE LWS_EXTERN void
422 lws_close_reason(struct lws *wsi, enum lws_close_status status,
423 unsigned char *buf, size_t len);
425 An extra button is added to the "open and close" test server page that requests
426 that the test server close the connection from his end.
428 The test server code will do so by
430 lws_close_reason(wsi, LWS_CLOSE_STATUS_GOINGAWAY,
431 (unsigned char *)"seeya", 5);
434 The browser shows the close code and reason he received
436 websocket connection CLOSED, code: 1001, reason: seeya
438 4) There's a new context creation time option flag
440 LWS_SERVER_OPTION_VALIDATE_UTF8
442 if you set it in info->options, then TEXT and CLOSE frames will get checked to
443 confirm that they contain valid UTF-8. If they don't, the connection will get
446 5) ECDH Certs are now supported. Enable the CMake option
448 cmake .. -DLWS_SSL_SERVER_WITH_ECDH_CERT=1
450 **and** the info->options flag
452 LWS_SERVER_OPTION_SSL_ECDH
454 to build in support and select it at runtime.
456 6) There's a new api lws_parse_uri() that simplifies chopping up
457 https://xxx:yyy/zzz uris into parts nicely. The test client now uses this
458 to allow proper uris as well as the old address style.
460 7) SMP support is integrated into LWS without any internal threading. It's
461 very simple to use, libwebsockets-test-server-pthread shows how to do it,
462 use -j <n> argument there to control the number of service threads up to 32.
464 Two new members are added to the info struct
466 unsigned int count_threads;
467 unsigned int fd_limit_per_thread;
469 leave them at the default 0 to get the normal singlethreaded service loop.
471 Set count_threads to n to tell lws you will have n simultaneous service threads
472 operating on the context.
474 There is still a single listen socket on one port, no matter how many
477 When a connection is made, it is accepted by the service thread with the least
478 connections active to perform load balancing.
480 The user code is responsible for spawning n threads running the service loop
481 associated to a specific tsi (Thread Service Index, 0 .. n - 1). See
482 the libwebsockets-test-server-pthread for how to do.
484 If you leave fd_limit_per_thread at 0, then the process limit of fds is shared
485 between the service threads; if you process was allowed 1024 fds overall then
486 each thread is limited to 1024 / n.
488 You can set fd_limit_per_thread to a nonzero number to control this manually, eg
489 the overall supported fd limit is less than the process allowance.
491 You can control the context basic data allocation for multithreading from Cmake
492 using -DLWS_MAX_SMP=, if not given it's set to 32. The serv_buf allocation
493 for the threads (currently 4096) is made at runtime only for active threads.
495 Because lws will limit the requested number of actual threads supported
496 according to LWS_MAX_SMP, there is an api lws_get_count_threads(context) to
497 discover how many threads were actually allowed when the context was created.
499 It's required to implement locking in the user code in the same way that
500 libwebsockets-test-server-pthread does it, for the FD locking callbacks.
502 If LWS_MAX_SMP=1, then there is no code related to pthreads compiled in the
503 library. If more than 1, a small amount of pthread mutex code is built into
508 LWS_VISIBLE struct lws *
509 lws_adopt_socket(struct lws_context *context, lws_sockfd_type accept_fd)
511 allows foreign sockets accepted by non-lws code to be adopted by lws as if they
512 had just been accepted by lws' own listen socket.
514 9) X-Real-IP: header has been added as WSI_TOKEN_HTTP_X_REAL_IP
516 10) Libuv support is added, there are new related user apis
518 typedef void (lws_uv_signal_cb_t)(uv_loop_t *l, uv_signal_t *w, int revents);
520 LWS_VISIBLE LWS_EXTERN int
521 lws_uv_sigint_cfg(struct lws_context *context, int use_uv_sigint,
522 lws_uv_signal_cb_t *cb);
524 LWS_VISIBLE LWS_EXTERN int
525 lws_uv_initloop(struct lws_context *context, uv_loop_t *loop, int tsi);
528 lws_uv_sigint_cb(uv_loop_t *loop, uv_signal_t *watcher, int revents);
538 1) LWS_SEND_BUFFER_POST_PADDING is now 0 and deprecated. You can remove it; if
539 you still use it, obviously it does nothing. Old binary code with nonzero
540 LWS_SEND_BUFFER_POST_PADDING is perfectly compatible, the old code just
541 allocated a buffer bigger than the library is going to use.
543 The example apps no longer use LWS_SEND_BUFFER_POST_PADDING.
545 The only path who made use of it was sending with LWS_WRITE_CLOSE --->
547 2) Because of lws_close_reason() formalizing handling close frames,
548 LWS_WRITE_CLOSE is removed from libwebsockets.h. It was only of use to send
549 close frames...close frame content should be managed using lws_close_reason()
552 3) We check for invalid CLOSE codes and complain about protocol violation in
553 our close code. But it changes little since we were in the middle of closing
556 4) zero-length RX frames and zero length TX frames are now allowed.
558 5) Pings and close used to be limited to 124 bytes, the correct limit is 125
559 so that is now also allowed.
561 6) LWS_PRE is provided as a synonym for LWS_SEND_BUFFER_PRE_PADDING, either is
564 7) There's generic support for RFC7462 style extension options built into the
565 library now. As a consequence, a field "options" is added to lws_extension.
566 It can be NULL if there are no options on the extension. Extension internal
567 info is part of the public abi because extensions may be implemented outside
570 8) WSI_TOKEN_PROXY enum was accidentally defined to collide with another token
571 of value 73. That's now corrected and WSI_TOKEN_PROXY moved to his own place at
574 9) With the addition of libuv support, libev is not the only event loop
575 library in town and his api names must be elaborated with _ev_
577 Callback typedef: lws_signal_cb ---> lws_ev_signal_cb_t
578 lws_sigint_cfg --> lws_ev_sigint_cfg
579 lws_initloop --> lws_ev_initloop
580 lws_sigint_cb --> lws_ev_sigint_cb
582 10) Libev support is made compatible with multithreaded service,
583 lws_ev_initloop (was lws_initloop) gets an extra argument for the
584 thread service index (use 0 if you will just have 1 service thread).
586 LWS_VISIBLE LWS_EXTERN int
587 lws_ev_initloop(struct lws_context *context, ev_loop_t *loop, int tsi);
590 v1.6.0-chrome48-firefox42
591 =======================
593 Major API improvements
594 ----------------------
596 v1.6.0 has many cleanups and improvements in the API. Although at first it
597 looks pretty drastic, user code will only need four actions to update it.
599 - Do the three search/replaces in your user code, /libwebsocket_/lws_/,
600 /libwebsockets_/lws_/, and /struct\ libwebsocket/struct\ lws/
602 - Remove the context parameter from your user callbacks
604 - Remove context as the first parameter from the "Eleven APIS" listed in the
605 User Api Changes section
607 - Add lws_get_context(wsi) as the first parameter on the "Three APIS" listed
608 in the User Api Changes section, and anywhere else you still need context
610 That's it... generally only a handful of the 14 affected APIs are actually in
611 use in your user code and you can find them quickest by compiling and visiting
612 the errors each in turn. And the end results are much cleaner, more
613 predictable and maintainable.
619 1) lws now exposes his internal platform file abstraction in a way that can be
620 both used by user code to make it platform-agnostic, and be overridden or
621 subclassed by user code. This allows things like handling the URI "directory
622 space" as a virtual filesystem that may or may not be backed by a regular
623 filesystem. One example use is serving files from inside large compressed
624 archive storage without having to unpack anything except the file being
627 The test server shows how to use it, basically the platform-specific part of
628 lws prepares a file operations structure that lives in the lws context.
630 Helpers are provided to also leverage these platform-independent file handling
633 static inline lws_filefd_type
634 lws_plat_file_open(struct lws *wsi, const char *filename,
635 unsigned long *filelen, int flags)
637 lws_plat_file_close(struct lws *wsi, lws_filefd_type fd)
639 static inline unsigned long
640 lws_plat_file_seek_cur(struct lws *wsi, lws_filefd_type fd, long offset)
643 lws_plat_file_read(struct lws *wsi, lws_filefd_type fd, unsigned long *amount,
644 unsigned char *buf, unsigned long len)
647 lws_plat_file_write(struct lws *wsi, lws_filefd_type fd, unsigned long *amount,
648 unsigned char *buf, unsigned long len)
650 The user code can also override or subclass the file operations, to either
651 wrap or replace them. An example is shown in test server.
653 A wsi can be associated with the file activity, allowing per-connection
654 authentication and state to be used when interpreting the file request.
656 2) A new API void * lws_wsi_user(struct lws *wsi) lets you get the pointer to
657 the user data associated with the wsi, just from the wsi.
659 3) URI argument handling. Libwebsockets parses and protects URI arguments
660 like test.html?arg1=1&arg2=2, it decodes %xx uriencoding format and reduces
661 path attacks like ../.../../etc/passwd so they cannot go behind the web
662 server's /. There is a list of confirmed attacks we're proof against in
663 ./test-server/attack.sh.
665 There is a new API lws_hdr_copy_fragment that should be used now to access
666 the URI arguments (it returns the fragments length)
668 while (lws_hdr_copy_fragment(wsi, buf, sizeof(buf),
669 WSI_TOKEN_HTTP_URI_ARGS, n) > 0) {
670 lwsl_info("URI Arg %d: %s\n", ++n, buf);
673 For the example above, calling with n=0 will return "arg1=1" and n=1 "arg2=2".
674 All legal uriencodings will have been reduced in those strings.
676 lws_hdr_copy_fragment() returns the length of the x=y fragment, so it's also
677 possible to deal with arguments containing %00. If you don't care about that,
678 the returned string has '\0' appended to simplify processing.
686 - lws_callback_on_writable_all_protocol(const struct lws_protocols *protocol)
687 - lws_callback_all_protocol(const struct lws_protocols *protocol)
688 - lws_rx_flow_allow_all_protocol(lws_rx_flow_allow_all_protocol)
690 Now take an additional pointer to the lws_context in their first argument.
692 The reason for this change is struct lws_protocols has been changed to remove
693 members that lws used for private storage: so the protocols struct in now
694 truly const and may be reused serially or simultaneously by different contexts.
698 LWS_VISIBLE LWS_EXTERN int
699 lws_add_http_header_by_name(struct lws_context *context,
701 const unsigned char *name,
702 const unsigned char *value,
706 LWS_VISIBLE LWS_EXTERN int
707 lws_finalize_http_header(struct lws_context *context,
711 LWS_VISIBLE LWS_EXTERN int
712 lws_add_http_header_by_token(struct lws_context *context,
714 enum lws_token_indexes token,
715 const unsigned char *value,
719 LWS_VISIBLE LWS_EXTERN int
720 lws_add_http_header_content_length(struct lws_context *context,
722 unsigned long content_length,
725 LWS_VISIBLE LWS_EXTERN int
726 lws_add_http_header_status(struct lws_context *context, struct lws *wsi,
727 unsigned int code, unsigned char **p,
730 LWS_VISIBLE LWS_EXTERN int
731 lws_serve_http_file(struct lws_context *context, struct lws *wsi,
732 const char *file, const char *content_type,
733 const char *other_headers, int other_headers_len);
734 LWS_VISIBLE LWS_EXTERN int
735 lws_serve_http_file_fragment(struct lws_context *context, struct lws *wsi);
737 LWS_VISIBLE LWS_EXTERN int
738 lws_return_http_status(struct lws_context *context, struct lws *wsi,
739 unsigned int code, const char *html_body);
741 LWS_VISIBLE LWS_EXTERN int
742 lws_callback_on_writable(const struct lws_context *context, struct lws *wsi);
744 LWS_VISIBLE LWS_EXTERN void
745 lws_get_peer_addresses(struct lws_context *context, struct lws *wsi,
746 lws_sockfd_type fd, char *name, int name_len,
747 char *rip, int rip_len);
749 LWS_VISIBLE LWS_EXTERN int
750 lws_read(struct lws_context *context, struct lws *wsi,
751 unsigned char *buf, size_t len);
753 no longer require their initial struct lws_context * parameter.
755 3) Several older apis start with libwebsocket_ or libwebsockets_ while newer ones
756 all begin lws_. These apis have been changed to all begin with lws_.
758 To convert, search-replace
760 - libwebsockets_/lws_
762 - struct\ libwebsocket/struct\ lws
764 4) context parameter removed from user callback.
766 Since almost all apis no longer need the context as a parameter, it's no longer
767 provided at the user callback directly.
769 However if you need it, for ALL callbacks wsi is valid and has a valid context
770 pointer you can recover using lws_get_context(wsi).
773 v1.5-chrome47-firefox41
774 =======================
779 LWS_CALLBACK_CLIENT_CONNECTION_ERROR may provide an error string if in is
780 non-NULL. If so, the string has length len.
782 LWS_SERVER_OPTION_PEER_CERT_NOT_REQUIRED is available to relax the requirement
783 for peer certs if you are using the option to require client certs.
785 LWS_WITHOUT_BUILTIN_SHA1 cmake option forces lws to use SHA1() defined
786 externally, eg, byOpenSSL, and disables build of libwebsockets_SHA1()
789 v1.4-chrome43-firefox36
790 =======================
795 There's a new member in the info struct used to control context creation,
796 ssl_private_key_password, which allows passing into lws the passphrase on
799 There's a new member in struct protocols, id, which is ignored by lws but can
800 be used by the user code to mark the selected protocol by user-defined version
801 or capabliity flag information, for the case multiple versions of a protocol are
804 int lws_is_ssl(wsi) added to allow user code to know if the connection was made
805 over ssl or not. If LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT is used, both
806 ssl and non-ssl connections are possible and may need to be treated differently
809 int lws_partial_buffered(wsi) added... should be checked after any
810 libwebsocket_write that will be followed by another libwebsocket_write inside
811 the same writeable callback. If set, you can't do any more writes until the
812 writeable callback is called again. If you only do one write per writeable callback,
815 HTTP2-related: HTTP2 changes how headers are handled, lws now has new version-
816 agnositic header creation APIs. These do the right thing depending on each
817 connection's HTTP version without the user code having to know or care, except
818 to make sure to use the new APIs for headers (test-server is updated to use
819 them already, so look there for examples)
821 The APIs "render" the headers into a user-provided buffer and bump *p as it
822 is used. If *p reaches end, then the APIs return nonzero for error.
824 LWS_VISIBLE LWS_EXTERN int
825 lws_add_http_header_status(struct libwebsocket_context *context,
826 struct libwebsocket *wsi,
831 Start a response header reporting status like 200, 500, etc
833 LWS_VISIBLE LWS_EXTERN int
834 lws_add_http_header_by_name(struct libwebsocket_context *context,
835 struct libwebsocket *wsi,
836 const unsigned char *name,
837 const unsigned char *value,
842 Add a header like name: value in HTTP1.x
844 LWS_VISIBLE LWS_EXTERN int
845 lws_finalize_http_header(struct libwebsocket_context *context,
846 struct libwebsocket *wsi,
850 Finish off the headers, like add the extra \r\n in HTTP1.x
852 LWS_VISIBLE LWS_EXTERN int
853 lws_add_http_header_by_token(struct libwebsocket_context *context,
854 struct libwebsocket *wsi,
855 enum lws_token_indexes token,
856 const unsigned char *value,
861 Add a header by using a lws token as the name part. In HTTP2, this can be
862 compressed to one or two bytes.
868 protocols struct member no_buffer_all_partial_tx is removed. Under some
869 conditions like rewriting extension such as compression in use, the built-in
870 partial send buffering is the only way to deal with the problem, so turning
871 it off is deprecated.
877 HTTP2-related: API libwebsockets_serve_http_file() takes an extra parameter at
880 int other_headers_len)
882 If you are providing other headers, they must be generated using the new
883 HTTP-version-agnostic APIs, and you must provide the length of them using this
884 additional parameter.
886 struct lws_context_creation_info now has an additional member
887 SSL_CTX *provided_client_ssl_ctx you may set to an externally-initialized
888 SSL_CTX managed outside lws. Defaulting to zero keeps the existing behaviour of
889 lws managing the context, if you memset the struct to 0 or have as a filescope
890 initialized struct in bss, no need to change anything.
893 v1.3-chrome37-firefox30
894 =======================
897 CMakeLists.txt | 447 +++--
901 cmake/LibwebsocketsConfig.cmake.in | 17 +
902 cmake/LibwebsocketsConfigVersion.cmake.in | 11 +
903 config.h.cmake | 18 +
904 cross-ming.cmake | 31 +
905 cross-openwrt-makefile | 91 +
906 lib/client-handshake.c | 205 ++-
907 lib/client-parser.c | 58 +-
908 lib/client.c | 158 +-
909 lib/context.c | 341 ++++
910 lib/extension-deflate-frame.c | 2 +-
911 lib/extension.c | 178 ++
912 lib/handshake.c | 287 +---
913 lib/lextable.h | 338 ++++
915 lib/libwebsockets.c | 2089 +++--------------------
916 lib/libwebsockets.h | 253 ++-
917 lib/lws-plat-unix.c | 404 +++++
918 lib/lws-plat-win.c | 358 ++++
919 lib/minilex.c | 530 +++---
920 lib/output.c | 445 ++---
921 lib/parsers.c | 682 ++++----
922 lib/pollfd.c | 239 +++
923 lib/private-libwebsockets.h | 501 +++++-
924 lib/server-handshake.c | 274 +--
925 lib/server.c | 858 ++++++++--
926 lib/service.c | 517 ++++++
928 lib/ssl-http2.c | 78 +
929 lib/ssl.c | 571 +++++++
930 test-server/attack.sh | 101 +-
931 test-server/test-client.c | 9 +-
932 test-server/test-echo.c | 17 +-
933 test-server/test-fraggle.c | 7 -
934 test-server/test-ping.c | 12 +-
935 test-server/test-server.c | 330 ++--
936 test-server/test.html | 4 +-
937 win32port/client/client.vcxproj | 259 ---
938 win32port/client/client.vcxproj.filters | 39 -
939 .../libwebsocketswin32.vcxproj.filters | 93 -
940 win32port/server/server.vcxproj | 276 ---
941 win32port/server/server.vcxproj.filters | 51 -
942 win32port/win32helpers/gettimeofday.h | 59 +-
943 win32port/win32helpers/netdb.h | 1 -
944 win32port/win32helpers/strings.h | 0
945 win32port/win32helpers/sys/time.h | 1 -
946 win32port/win32helpers/unistd.h | 0
947 win32port/win32helpers/websock-w32.c | 104 --
948 win32port/win32helpers/websock-w32.h | 62 -
949 win32port/win32port.sln | 100 --
950 win32port/zlib/gzio.c | 3 +-
951 55 files changed, 6779 insertions(+), 5059 deletions(-)
957 POST method is supported
959 The protocol 0 / HTTP callback can now get two new kinds of callback,
960 LWS_CALLBACK_HTTP_BODY (in and len are a chunk of the body of the HTTP request)
961 and LWS_CALLBACK_HTTP_BODY_COMPLETION (the expected amount of body has arrived
962 and been passed to the user code already). These callbacks are used with the
963 post method (see the test server for details).
965 The period between the HTTP header completion and the completion of the body
966 processing is protected by a 5s timeout.
968 The chunks are stored in a malloc'd buffer of size protocols[0].rx_buffer_size.
971 New server option you can enable from user code
972 LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT allows non-SSL connections to
973 also be accepted on an SSL listening port. It's disabled unless you enable
977 Two new callbacks are added in protocols[0] that are optional for allowing
978 limited thread access to libwebsockets, LWS_CALLBACK_LOCK_POLL and
979 LWS_CALLBACK_UNLOCK_POLL.
981 If you use them, they protect internal and external poll list changes, but if
982 you want to use external thread access to libwebsocket_callback_on_writable()
983 you have to implement your locking here even if you don't use external
986 If you will use another thread for this, take a lot of care about managing
987 your list of live wsi by doing it from ESTABLISHED and CLOSED callbacks
988 (with your own locking).
990 If you configure cmake with -DLWS_WITH_LIBEV=1 then the code allowing the libev
991 eventloop instead of the default poll() one will also be compiled in. But to
992 use it, you must also set the LWS_SERVER_OPTION_LIBEV flag on the context
993 creation info struct options member.
995 IPV6 is supported and enabled by default except for Windows, you can disable
996 the support at build-time by giving -DLWS_IPV6=, and disable use of it even if
997 compiled in by making sure the flag LWS_SERVER_OPTION_DISABLE_IPV6 is set on
998 the context creation info struct options member.
1000 You can give LWS_SERVER_OPTION_DISABLE_OS_CA_CERTS option flag to
1001 guarantee the OS CAs will not be used, even if that support was selected at
1004 Optional "token limits" may be enforced by setting the member "token_limits"
1005 in struct lws_context_creation_info to point to a struct lws_token_limits.
1006 NULL means no token limits used for compatibility.
1012 Extra optional argument to libwebsockets_serve_http_file() allows injecion
1013 of HTTP headers into the canned response. Eg, cookies may be added like
1014 that without getting involved in having to send the header by hand.
1016 A new info member http_proxy_address may be used at context creation time to
1017 set the http proxy. If non-NULL, it overrides http_proxy environment var.
1019 Cmake supports LWS_SSL_CLIENT_USE_OS_CA_CERTS defaulting to on, which gets
1020 the client to use the OS CA Roots. If you're worried somebody with the
1021 ability to forge for force creation of a client cert from the root CA in
1022 your OS, you should disable this since your selfsigned $0 cert is a lot safer
1026 v1.23-chrome32-firefox24
1027 ========================
1030 CMakeLists.txt | 573 ++++++++----
1031 COPYING | 503 -----------
1032 INSTALL | 365 --------
1034 README.build | 371 ++------
1035 README.coding | 63 ++
1036 autogen.sh | 1578 ---------------------------------
1038 cmake/FindGit.cmake | 163 ++++
1039 cmake/FindOpenSSLbins.cmake | 15 +-
1040 cmake/UseRPMTools.cmake | 176 ++++
1041 config.h.cmake | 25 +-
1042 configure.ac | 226 -----
1043 cross-arm-linux-gnueabihf.cmake | 28 +
1044 lib/Makefile.am | 89 --
1045 lib/base64-decode.c | 98 +-
1046 lib/client-handshake.c | 123 ++-
1047 lib/client-parser.c | 19 +-
1048 lib/client.c | 145 ++-
1049 lib/daemonize.c | 4 +-
1050 lib/extension.c | 2 +-
1051 lib/getifaddrs.h | 4 +-
1052 lib/handshake.c | 76 +-
1053 lib/libwebsockets.c | 491 ++++++----
1054 lib/libwebsockets.h | 164 ++--
1055 lib/output.c | 214 ++++-
1056 lib/parsers.c | 102 +--
1057 lib/private-libwebsockets.h | 66 +-
1058 lib/server-handshake.c | 5 +-
1059 lib/server.c | 29 +-
1061 libwebsockets-api-doc.html | 249 +++---
1062 libwebsockets.pc.in | 11 -
1063 libwebsockets.spec | 14 +-
1065 scripts/FindLibWebSockets.cmake | 33 +
1066 scripts/kernel-doc | 1 +
1067 test-server/Makefile.am | 131 ---
1068 test-server/leaf.jpg | Bin 0 -> 2477518 bytes
1069 test-server/test-client.c | 78 +-
1070 test-server/test-echo.c | 33 +-
1071 test-server/test-fraggle.c | 26 +-
1072 test-server/test-ping.c | 15 +-
1073 test-server/test-server.c | 197 +++-
1074 test-server/test.html | 5 +-
1075 win32port/win32helpers/gettimeofday.c | 74 +-
1076 win32port/win32helpers/websock-w32.h | 6 +-
1077 48 files changed, 2493 insertions(+), 4212 deletions(-)
1083 - You can now call libwebsocket_callback_on_writable() on http connectons,
1084 and get a LWS_CALLBACK_HTTP_WRITEABLE callback, the same way you can
1085 regulate writes with a websocket protocol connection.
1087 - A new member in the context creation parameter struct "ssl_cipher_list" is
1088 added, replacing CIPHERS_LIST_STRING. NULL means use the ssl library
1089 default list of ciphers.
1091 - Not really an api addition, but libwebsocket_service_fd() will now zero
1092 the revents field of the pollfd it was called with if it handled the
1093 descriptor. So you can tell if it is a non-lws fd by checking revents
1094 after the service call... if it's still nonzero, the descriptor
1095 belongs to you and you need to take care of it.
1097 - libwebsocket_rx_flow_allow_all_protocol(protocol) will unthrottle all
1098 connections with the established protocol. It's designed to be
1099 called from user server code when it sees it can accept more input
1100 and may have throttled connections using the server rx flow apis
1101 while it was unable to accept any other input The user server code
1102 then does not have to try to track while connections it choked, this
1103 will free up all of them in one call.
1105 - there's a new, optional callback LWS_CALLBACK_CLOSED_HTTP which gets
1106 called when an HTTP protocol socket closes
1108 - for LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION callback, the user_space alloc
1109 has already been done before the callback happens. That means we can
1110 use the user parameter to the callback to contain the user pointer, and
1111 move the protocol name to the "in" parameter. The docs for this
1112 callback are also updated to reflect how to check headers in there.
1114 - libwebsocket_client_connect() is now properly nonblocking and async. See
1115 README.coding and test-client.c for information on the callbacks you
1116 can rely on controlling the async connection period with.
1118 - if your OS does not support the http_proxy environment variable convention
1119 (eg, reportedly OSX), you can use a new api libwebsocket_set_proxy()
1120 to set the proxy details in between context creation and the connection
1121 action. For OSes that support http_proxy, that's used automatically.
1126 - the external poll callbacks now get the socket descriptor coming from the
1127 "in" parameter. The user parameter provides the user_space for the
1128 wsi as it normally does on the other callbacks.
1129 LWS_CALLBACK_FILTER_NETWORK_CONNECTION also has the socket descriptor
1130 delivered by @in now instead of @user.
1132 - libwebsocket_write() now returns -1 for error, or the amount of data
1133 actually accepted for send. Under load, the OS may signal it is
1134 ready to send new data on the socket, but have only a restricted
1135 amount of memory to buffer the packet compared to usual.
1141 - libwebsocket_ensure_user_space() is removed from the public api, if you
1142 were using it to get user_space, you need to adapt your code to only
1143 use user_space inside the user callback.
1145 - CIPHERS_LIST_STRING is removed
1147 - autotools build has been removed. See README.build for info on how to
1148 use CMake for your platform
1151 v1.21-chrome26-firefox18
1152 ========================
1154 - Fixes buffer overflow bug in max frame size handling if you used the
1155 default protocol buffer size. If you declared rx_buffer_size in your
1156 protocol, which is recommended anyway, your code was unaffected.
1158 v1.2-chrome26-firefox18
1159 =======================
1165 CMakeLists.txt | 544 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1166 LICENSE | 526 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1169 README.build | 258 ++++++++++++++++++++++++++++++++-----
1170 README.coding | 52 ++++++++
1171 changelog | 136 ++++++++++++++++++++
1172 cmake/FindOpenSSLbins.cmake | 33 +++++
1173 config.h.cmake | 173 +++++++++++++++++++++++++
1174 configure.ac | 22 +++-
1175 lib/Makefile.am | 20 ++-
1176 lib/base64-decode.c | 2 +-
1177 lib/client-handshake.c | 190 +++++++++++-----------------
1178 lib/client-parser.c | 88 +++++++------
1179 lib/client.c | 384 ++++++++++++++++++++++++++++++-------------------------
1180 lib/daemonize.c | 32 +++--
1181 lib/extension-deflate-frame.c | 58 +++++----
1182 lib/extension-deflate-stream.c | 19 ++-
1183 lib/extension-deflate-stream.h | 4 +-
1184 lib/extension.c | 11 +-
1185 lib/getifaddrs.c | 315 +++++++++++++++++++++++-----------------------
1186 lib/getifaddrs.h | 30 ++---
1187 lib/handshake.c | 124 +++++++++++-------
1188 lib/libwebsockets.c | 736 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------------------------------
1189 lib/libwebsockets.h | 237 ++++++++++++++++++++++------------
1190 lib/output.c | 192 +++++++++++-----------------
1191 lib/parsers.c | 966 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------------------
1192 lib/private-libwebsockets.h | 225 +++++++++++++++++++++------------
1193 lib/server-handshake.c | 82 ++++++------
1194 lib/server.c | 96 +++++++-------
1195 libwebsockets-api-doc.html | 189 ++++++++++++++++++----------
1196 libwebsockets.spec | 17 +--
1197 test-server/attack.sh | 148 ++++++++++++++++++++++
1198 test-server/test-client.c | 125 +++++++++---------
1199 test-server/test-echo.c | 31 +++--
1200 test-server/test-fraggle.c | 32 ++---
1201 test-server/test-ping.c | 52 ++++----
1202 test-server/test-server.c | 129 ++++++++++++-------
1203 win32port/libwebsocketswin32/libwebsocketswin32.vcxproj | 279 ----------------------------------------
1204 win32port/libwebsocketswin32/libwebsocketswin32.vcxproj.filters | 23 +++-
1205 41 files changed, 4398 insertions(+), 2219 deletions(-)
1211 - lws_get_library_version() returns a const char * with a string like
1212 "1.1 9e7f737", representing the library version from configure.ac
1213 and the git HEAD hash the library was built from
1215 - TCP Keepalive can now optionally be applied to all lws sockets, on Linux
1216 also with controllable timeout, number of probes and probe interval.
1217 (On BSD type OS, you can only use system default settings for the
1218 timing and retries, although enabling it is supported by setting
1219 ka_time to nonzero, the exact value has no meaning.)
1220 This enables detection of idle connections which are logically okay,
1221 but are in fact dead, due to network connectivity issues at the server,
1222 client, or any intermediary. By default it's not enabled, but you
1223 can enable it by setting a non-zero timeout (in seconds) at the new
1224 ka_time member at context creation time.
1226 - Two new optional user callbacks added, LWS_CALLBACK_PROTOCOL_DESTROY which
1227 is called one-time per protocol as the context is being destroyed, and
1228 LWS_CALLBACK_PROTOCOL_INIT which is called when the context is created
1229 and the protocols are added, again it's a one-time affair.
1230 This lets you manage per-protocol allocations properly including
1231 cleaning up after yourself when the server goes down.
1236 - libwebsocket_create_context() has changed from taking a ton of parameters
1237 to just taking a pointer to a struct containing the parameters. The
1238 struct lws_context_creation_info is in libwebsockets.h, the members
1239 are in the same order as when they were parameters to the call
1240 previously. The test apps are all updated accordingly so you can
1241 see example code there.
1243 - Header tokens are now deleted after the websocket connection is
1244 established. Not just the header data is saved, but the pointer and
1245 length array is also removed from (union) scope saving several hundred
1246 bytes per connection once it is established
1248 - struct libwebsocket_protocols has a new member rx_buffer_size, this
1249 controls rx buffer size per connection of that protocol now. Sources
1250 for apps built against older versions of the library won't declare
1251 this in their protocols, defaulting it to 0. Zero buffer is legal,
1252 it causes a default buffer to be allocated (currently 4096)
1254 If you want to receive only atomic frames in your user callback, you
1255 should set this to greater than your largest frame size. If a frame
1256 comes that exceeds that, no error occurs but the callback happens as
1257 soon as the buffer limit is reached, and again if it is reached again
1258 or the frame completes. You can detect that has happened by seeing
1259 there is still frame content pending using
1260 libwebsockets_remaining_packet_payload()
1262 By correctly setting this, you can save a lot of memory when your
1263 protocol has small frames (see the test server and client sources).
1265 - LWS_MAX_HEADER_LEN now defaults to 1024 and is the total amount of known
1266 header payload lws can cope with, that includes the GET URL, origin
1267 etc. Headers not understood by lws are ignored and their payload
1268 not included in this.
1274 - The configuration-time option MAX_USER_RX_BUFFER has been replaced by a
1275 buffer size chosen per-protocol. For compatibility, there's a default
1276 of 4096 rx buffer, but user code should set the appropriate size for
1277 the protocol frames.
1279 - LWS_INITIAL_HDR_ALLOC and LWS_ADDITIONAL_HDR_ALLOC are no longer needed
1280 and have been removed. There's a new header management scheme that
1281 handles them in a much more compact way.
1283 - libwebsockets_hangup_on_client() is removed. If you want to close the
1284 connection you must do so from the user callback and by returning
1287 - libwebsocket_close_and_free_session() is now private to the library code
1288 only and not exposed for user code. If you want to close the
1289 connection, you must do so from the user callback by returning -1
1296 - Cmake project file added, aimed initially at Windows support: this replaces
1297 the visual studio project files that were in the tree until now.
1299 - CyaSSL now supported in place of OpenSSL (--use-cyassl on configure)
1301 - PATH_MAX or MAX_PATH no longer needed
1303 - cutomizable frame rx buffer size by protocol
1305 - optional TCP keepalive so dead peers can be detected, can be enabled at
1306 context-creation time
1308 - valgrind-clean: no SSL or CyaSSL: completely clean. With OpenSSL, 88 bytes
1309 lost at OpenSSL library init and symptomless reports of uninitialized
1310 memory usage... seems to be a known and ignored problem at OpenSSL
1312 - By default debug is enabled and the library is built for -O0 -g to faclitate
1313 that. Use --disable-debug configure option to build instead with -O4
1314 and no -g (debug info), obviously providing best performance and
1315 reduced binary size.
1317 - 1.0 introduced some code to try to not deflate small frames, however this
1318 seems to break when confronted with a mixture of frames above and
1319 below the threshold, so it's removed. Veto the compression extension
1320 in your user callback if you will typically have very small frames.
1322 - There are many memory usage improvements, both a reduction in malloc/
1323 realloc and architectural changes. A websocket connection now
1324 consumes only 296 bytes with SSL or 272 bytes without on x86_64,
1325 during header processing an additional 1262 bytes is allocated in a
1326 single malloc, but is freed when the websocket connection starts.
1327 The RX frame buffer defined by the protocol in user
1328 code is also allocated per connection, this represents the largest
1329 frame you can receive atomically in that protocol.
1331 - On ARM9 build, just http+ws server no extensions or ssl, <12Kbytes .text
1332 and 112 bytes per connection (+1328 only during header processing)
1335 v1.1-chrome26-firefox18
1336 =======================
1342 README-test-server | 291 ---
1343 README.build | 239 ++
1344 README.coding | 138 ++
1346 README.test-apps | 272 +++
1347 configure.ac | 116 +-
1348 lib/Makefile.am | 55 +-
1349 lib/base64-decode.c | 5 +-
1350 lib/client-handshake.c | 121 +-
1351 lib/client-parser.c | 394 ++++
1352 lib/client.c | 807 +++++++
1353 lib/daemonize.c | 212 ++
1354 lib/extension-deflate-frame.c | 132 +-
1355 lib/extension-deflate-stream.c | 12 +-
1356 lib/extension-x-google-mux.c | 1223 ----------
1357 lib/extension-x-google-mux.h | 96 -
1358 lib/extension.c | 8 -
1359 lib/getifaddrs.c | 271 +++
1360 lib/getifaddrs.h | 76 +
1361 lib/handshake.c | 582 +----
1362 lib/libwebsockets.c | 2493 ++++++---------------
1363 lib/libwebsockets.h | 115 +-
1365 lib/minilex.c | 440 ++++
1366 lib/output.c | 628 ++++++
1367 lib/parsers.c | 2016 +++++------------
1368 lib/private-libwebsockets.h | 284 +--
1369 lib/server-handshake.c | 275 +++
1370 lib/server.c | 377 ++++
1371 libwebsockets-api-doc.html | 300 +--
1373 test-server/Makefile.am | 111 +-
1374 test-server/libwebsockets.org-logo.png | Bin 0 -> 7029 bytes
1375 test-server/test-client.c | 45 +-
1376 test-server/test-echo.c | 330 +++
1377 test-server/test-fraggle.c | 20 +-
1378 test-server/test-ping.c | 22 +-
1379 test-server/test-server-extpoll.c | 554 -----
1380 test-server/test-server.c | 349 ++-
1381 test-server/test.html | 3 +-
1382 win32port/zlib/ZLib.vcxproj | 749 ++++---
1383 win32port/zlib/ZLib.vcxproj.filters | 188 +-
1384 win32port/zlib/adler32.c | 348 ++-
1385 win32port/zlib/compress.c | 160 +-
1386 win32port/zlib/crc32.c | 867 ++++----
1387 win32port/zlib/crc32.h | 882 ++++----
1388 win32port/zlib/deflate.c | 3799 +++++++++++++++-----------------
1389 win32port/zlib/deflate.h | 688 +++---
1390 win32port/zlib/gzclose.c | 50 +-
1391 win32port/zlib/gzguts.h | 325 ++-
1392 win32port/zlib/gzlib.c | 1157 +++++-----
1393 win32port/zlib/gzread.c | 1242 ++++++-----
1394 win32port/zlib/gzwrite.c | 1096 +++++----
1395 win32port/zlib/infback.c | 1272 ++++++-----
1396 win32port/zlib/inffast.c | 680 +++---
1397 win32port/zlib/inffast.h | 22 +-
1398 win32port/zlib/inffixed.h | 188 +-
1399 win32port/zlib/inflate.c | 2976 +++++++++++++------------
1400 win32port/zlib/inflate.h | 244 +-
1401 win32port/zlib/inftrees.c | 636 +++---
1402 win32port/zlib/inftrees.h | 124 +-
1403 win32port/zlib/trees.c | 2468 +++++++++++----------
1404 win32port/zlib/trees.h | 256 +--
1405 win32port/zlib/uncompr.c | 118 +-
1406 win32port/zlib/zconf.h | 934 ++++----
1407 win32port/zlib/zlib.h | 3357 ++++++++++++++--------------
1408 win32port/zlib/zutil.c | 642 +++---
1409 win32port/zlib/zutil.h | 526 ++---
1410 69 files changed, 19556 insertions(+), 20145 deletions(-)
1415 - libwebsockets_serve_http_file() now takes a context as first argument
1417 - libwebsockets_get_peer_addresses() now takes a context and wsi as first
1424 - lwsl_...() logging apis, default to stderr but retargetable by user code;
1425 may be used also by user code
1427 - lws_set_log_level() set which logging apis are able to emit (defaults to
1428 notice, warn, err severities), optionally set the emit callback
1430 - lwsl_emit_syslog() helper callback emits to syslog
1432 - lws_daemonize() helper code that forks the app into a headless daemon
1433 properly, maintains a lock file with pid in suitable for sysvinit etc to
1436 - LWS_CALLBACK_HTTP_FILE_COMPLETION callback added since http file
1437 transfer is now asynchronous (see test server code)
1439 - lws_frame_is_binary() from a wsi pointer, let you know if the received
1440 data was sent in BINARY mode
1446 - libwebsockets_fork_service_loop() - no longer supported (had intractable problems)
1447 arrange your code to act from the user callback instead from same
1448 process context as the service loop
1450 - libwebsockets_broadcast() - use libwebsocket_callback_on_writable[_all_protocol]()
1451 instead from same process context as the service loop. See the test apps
1454 - x-google-mux() removed until someone wants it
1456 - pre -v13 (ancient) protocol support removed
1462 - echo test server and client compatible with echo.websocket.org added
1464 - many new configure options (see README.build) to reduce footprint of the
1465 library to what you actually need, eg, --without-client and
1468 - http + websocket server can build to as little as 12K .text for ARM
1470 - no more MAX_CLIENTS limitation; adapts to support the max number of fds
1471 allowed to the process by ulimit, defaults to 1024 on Fedora and
1472 Ubuntu. Use ulimit to control this without needing to configure
1473 the library. Code here is smaller and faster.
1475 - adaptive ratio of listen socket to connection socket service allows
1476 good behaviour under Apache ab test load. Tested with thousands
1477 of simultaneous connections
1479 - reduction in per-connection memory footprint by moving to a union to hold
1480 mutually-exclusive state for the connection
1482 - robustness: Out of Memory taken care of for all allocation code now
1484 - internal getifaddrs option if your toolchain lacks it (some uclibc)
1486 - configurable memory limit for deflate operations
1488 - improvements in SSL code nonblocking operation, possible hang solved,
1489 some SSL operations broken down into pollable states so there is
1490 no library blocking, timeout coverage for SSL_connect
1492 - extpoll test server merged into single test server source
1494 - robustness: library should deal with all recoverable socket conditions
1496 - rx flowcontrol for backpressure notification fixed and implmeneted
1497 correctly in the test server
1499 - optimal lexical parser added for header processing; all headers in a
1500 single 276-byte state table
1502 - latency tracking api added (configure --with-latency)
1504 - Improved in-tree documentation, REAME.build, README.coding,
1505 README.test-apps, changelog
1510 v1.0-chrome25-firefox17 (6cd1ea9b005933f)