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Author SHA1 Message Date
Andy Green
1bd08c3941 test-client: crl: declare vars before code
Some toolchains blow chunks otherwise

https://github.com/warmcat/libwebsockets/issues/1451
2019-11-06 09:11:04 +00:00
Zhiwen Zheng
de6a8e8194 illumos: fix build errors and warnings for v3.2-stable on illumos 2019-10-07 10:14:02 +01:00
Andy Green
d302198019 external poll: add default-off cmake option
External poll support generates a lot of messages on a busy system
for no value unless you're one of the few people using it.  It's
not recommended for new users and is there for backwards compatibility.

Make it not built by default and selectable by cmake option.
2019-08-12 12:44:36 +01:00
Andy Green
498a4e2bd7 sul: all timed objects use a single pt sul list
wsi timeout, wsi hrtimer, sequencer timeout and vh-protocol timer
all now participate on a single sorted us list.

The whole idea of polling wakes is thrown out, poll waits ignore the
timeout field and always use infinite timeouts.

Introduce a public api that can schedule its own callback from the event
loop with us resolution (usually ms is all the platform can do).

Upgrade timeouts and sequencer timeouts to also be able to use us resolution.

Introduce a prepared fakewsi in the pt, so we don't have to allocate
one on the heap when we need it.

Directly handle vh-protocol timer if LWS_MAX_SMP == 1
2019-08-09 10:12:09 +01:00
hjfbswb
8d79c06f49 android: build fixes 2019-08-02 15:57:57 +01:00
Andy Green
3b44a745c9 h2-tx-credit-disallow-overflow 2019-07-08 08:48:58 +01:00
Andy Green
4692c1a7ee rtos: clean warnings where uint32_t is an unsigned long 2019-06-07 11:11:46 +01:00
Andy Green
48366de1d1 unix plat: add minimal wsi fd map option
An lws context usually contains a processwide fd -> wsi lookup table.

This allows any possible fd returned by a *nix type OS to be immediately
converted to a wsi just by indexing an array of struct lws * the size of
the highest possible fd, as found by ulimit -n or similar.

This works modestly for Linux type systems where the default ulimit -n for
a process is 1024, it means a 4KB or 8KB lookup table for 32-bit or
64-bit systems.

However in the case your lws usage is much simpler, like one outgoing
client connection and no serving, this represents increasing waste.  It's
made much worse if the system has a much larger default ulimit -n, eg 1M,
the table is occupying 4MB or 8MB, of which you will only use one.

Even so, because lws can't be sure the OS won't return a socket fd at any
number up to (ulimit -n - 1), it has to allocate the whole lookup table
at the moment.

This patch looks to see if the context creation info is setting
info->fd_limit_per_thread... if it leaves it at the default 0, then
everything is as it was before this patch.  However if finds that
(info->fd_limit_per_thread * actual_number_of_service_threads) where
the default number of service threads is 1, is less than the fd limit
set by ulimit -n, lws switches to a slower lookup table scheme, which
only allocates the requested number of slots.  Lookups happen then by
iterating the table and comparing rather than indexing the array
directly, which is obviously somewhat of a performance hit.

However in the case where you know lws will only have a very few wsi
maximum, this method can very usefully trade off speed to be able to
avoid the allocation sized by ulimit -n.

minimal examples for client that can make use of this are also modified
by this patch to use the smaller context allocations.
2019-05-18 12:10:19 +01:00
Andy Green
f7149e90c2 cc0: align dedication to CC0 FAQ recommended format
https://libwebsockets.org/pipermail/libwebsockets/2019-April/007937.html

thanks to Bruce Perens for noting it.

This doesn't change the intention or status of the CC0 files, they were
pure CC0 before (ie, public domain) and they are pure CC0 now.  It just
gets rid of the (C) part at the top of the dedication which may be read
to be a bit contradictory since the purpose is to make it public domain.
2019-05-02 09:29:01 +01:00
Andy Green
0405c0c878 lejp: make sure child object close is not mistaken for parent 2019-05-02 09:28:38 +01:00
Andy Green
e63b3a6348 daemonize: use pid_t
After report from Vitaly Shevtsov

https://libwebsockets.org/pipermail/libwebsockets/2019-January/007787.html
2019-01-23 18:06:32 +08:00
pblemel
39e19c85f1 qnx: qnx6.5 compatibility 2019-01-11 17:14:14 +08:00
Andy Green
eda102e397 jwe 2018-12-27 06:45:32 +08:00
Andy Green
08b5ad9299 role: raw-proxy 2018-12-01 11:05:59 +08:00
Andy Green
c027c3db28 docs: cleanups 2018-11-21 17:03:29 +08:00
Andy Green
d9f982a055 minimal examples: update for CSP best practices
1) update the logos to svg

2) add svg icon for strict security policy where used

3) define new vhost option flag to enforce sending CSP headers
   with the result code

4) add vhost option flag to minimal examples to
   enforce sending CSP where applicable

5) Go through all the affecting examples confirming they
   still work

6) add LWS_RECOMMENDED_MIN_HEADER_SPACE constant (currently
   2048) to clarify when we need a buffer to hold headers...
   with CSP the headers have become potentially a lot
   larger.
2018-11-21 17:03:29 +08:00
Andy Green
0a0b88174d minimal: minimal-ws-client-spam 2018-11-15 10:00:54 +08:00
Andy Green
93d4e186c2 openssl tls1.3: allow setting ciphersuites at context creation time
https://github.com/warmcat/libwebsockets/issues/1440
2018-10-27 08:05:21 +08:00
Andy Green
1f1314160a lws_hdr_copy: ensure enough extra space
Audit all lws_hdr_copy() usages inside lws and make sure we
take care about it failing.

Also since the patch around aggregation of headers by ',',
lws_hdr_copy() needs a little more space in the output buffer,
adjust one place where that caused it to start failing in an
exact-sized buffer.
2018-10-26 16:14:30 +08:00
Andy Green
33a6034875 codacy: minor fixes 2018-10-13 08:16:27 +08:00
Andy Green
fd810f198a http proxy: client: unix socket support
This allows the client stuff to understand that addresses beginning with '+'
represent unix sockets.

If the first character after the '+' is '@', it understands that the '@'
should be read as '\0', in order to use Linux "abstract namespace"
sockets.

Further the lws_parse_uri() helper is extended to understand the convention
that an address starting with + is a unix socket, and treats the socket
path as delimited by ':', eg

http://+/var/run/mysocket:/my/path

HTTP Proxy is updated to allow mounts to these unix socket paths.

Proxy connections go out on h1, but are dynamically translated to h1 or h2
on the incoming side.

Proxy usage of libhubbub is separated out... LWS_WITH_HTTP_PROXY is on by
default, and LWS_WITH_HUBBUB is off by default.
2018-09-12 13:58:13 +08:00
Andy Green
6a59af4282 test-app: remove -r resource path 2018-09-11 18:27:59 +08:00
Andy Green
97f3e66f3c test-app: upgrade test.html to have separate css and js for CSP 2018-09-11 18:27:59 +08:00
Andy Green
d1f9f0ae2d libwebsockets.h: split out into a dir of sub-includes included by libwebsockets.h
This has no effect on user code or backward compatibility.

It moves the in-tree public api header libwebsockets.h from ./lib
to ./include, and introduces a dir ./include/libwebsockets/

The single public api header is split out into 31 sub-headers
in ./include/libwebsockets.  ./include/libwebsockets.h contains
some core types and platform adaptation code, but the rest of it
is now 31 #include <libwebsockets/...>

At install time, /usr/[local/]include/libwebsockets.h is installed
as before, along now with the 31 sub-headers in ...include/libwebsockets/

There's no net effect on user code.

But the api header is now much easier to maintain and study, with 31
topic-based sub headers.
2018-09-11 18:27:59 +08:00
Andy Green
d461f46a97 libwebsockets.h: clean out some boilerplate better put in core/private.h
https://github.com/warmcat/libwebsockets/issues/1370
2018-08-16 19:10:32 +08:00
Andy Green
f37454ab17 cmake: LEJF and LEJP_CONF now on by default 2018-08-14 08:00:30 +08:00
Andy Green
a03dd40e62 plugins: gitws libjsongit2 support
This adds a plugin that interfaces to libjsongit2

https://warmcat.com/git/libjsongit2

to provide a per-vhost service for presenting bare git repos in a
web interface.
2018-08-14 08:00:25 +08:00
Andy Green
f2f96857d6 fd_cloexec: add and use lws_open wrapper and lws_plat_apply_FD_CLOEXEC() on cgi 2018-06-23 12:56:21 +08:00
Andy Green
db6976992d sshd: make sure no aliases on last_alloc 2018-06-07 09:41:36 +08:00
Andy Green
44e5e1231b minimal client: add different paths to multi 2018-06-04 07:14:49 +08:00
Andy Green
de064fd65a refactor: core code in lib/core and private-libwebsockets.h to core/private.h
This commit is coverity-clean as tested

cmake .. -DLWS_WITH_MINIMAL_EXAMPLES=1 -DLWS_WITHOUT_EXTENSIONS=1 -DLWS_WITH_ACME=1 -DLWS_WITH_LWSWS=1 -DLWS_WITH_LIBUV=1 -DLWS_WITH_HTTP2=1 -DLWS_WITHOUT_CLIENT=0 -DLWS_WITHOUT_SERVER=0 -DLWS_UNIX_SOCK=1 -DLWS_WITH_TLS=0 -DLWS_WITH_MBEDTLS=0 -DLWS_WITH_CGI=1 -DCMAKE_BUILD_TYPE=DEBUG -DLWS_WITH_GENERIC_SESSIONS=1 -DLWS_WITH_RANGES=1 -DLWS_ROLE_WS=1 -DLWS_MAX_SMP=16 -DLWS_ROLE_H1=1 -DLWS_WITH_WOLFSSL=0 -DLWS_WITH_LIBEV=0 -DLWS_WITH_LIBEVENT=1
2018-05-03 10:49:36 +08:00
Andy Green
f497562a62 refactor: change event lib minimal examples to serve as the test apps 2018-04-30 19:17:32 +08:00
Andy Green
0b52d92d12 refactor: remove more test apps and replace with minimal-examples 2018-04-30 09:16:04 +08:00
Andy Green
d37b383edc refactor: apply ops structs to event loop handlers 2018-04-29 10:44:36 +08:00
Andy Green
d05b408cde refactor: clean out test-apps 2018-04-29 08:35:24 +08:00
Andy Green
8d213f8295 refactor: isolate event_loop struct content same way as roles 2018-04-29 08:34:19 +08:00
Andy Green
ae688609a0 qa: add 6 x h2load tests 2018-04-27 11:19:09 +08:00
Andy Green
82adc07c0a fix minimal-server-tls 2018-04-27 09:36:03 +08:00
Andy Green
27e86e2641 cmake: allow setting LWS_ROLE_WS
You can build lws without support for ws, with -DLWS_ROLE_WS=0.

This is thanks to the role ops isolating all the ws-specific business
in the ws role.

Also retire more test apps replaced by minmal-examples.
2018-04-25 08:42:18 +08:00
Andy Green
7b227eb333 autobahn fixes
This replaces the old test-app for echo with separate client and server
minimal versions.

The autobahn test script is made more autonomous and tests both
client and server.
2018-04-22 06:45:46 +08:00
Andy Green
1d2094996e refactor: absorb other caches into buflist
1) Remove the whole ah rxbuf and put things on to the wsi buflist

This eliminates the whole detachability thing based on ah rxbuf
state... ah can always be detached.

2) Remove h2 scratch and put it on the wsi buflist

3) Remove preamble_rx and use the wsi buflist

This was used in the case adopted sockets had already been read.


Basically there are now only three forced service scenarios

 - something in buflist (and not in state LRS_DEFERRING_ACTION)

 - tls layer has buffered rx

 - extension has buffered rx

This is a net removal of around 400 lines of special-casing.
2018-04-20 07:13:05 +08:00
Andy Green
4b7144f763 lws_buflist
For h1 / ws, a combination of removing POLLIN wait and
stashing any unused rx lets us immediately respond to
rx flow control requests in a simple and effective way,
because the tcp socket is the stream.

But for muxed protocols like h2, that technique cannot
be used because we cannot silence the whole bundle of
streams because one can't handle any more rx dynamically.

There are control frames and content for other streams
serialized inbetween the flow controlled stream content.
We have no choice but to read to so we can see the other
things.  Therefore for muxed protocols like h2 and spdy,
rx flow control boils down to tx credit manipulation
on individual streams to staunch the flow at the peer.

However that requires a round trip to take effect, any
transmitted packets that were in flight before the tx credit
reduction arrives at the remote peer are still going to come
and have to be dealt with by adding them to the stash.

This patch introduces lws_buflist scatter-gather type
buffer management for rxflow handling, so we can append
buffer segments in a linked-list to handle whatever rx
is unavoidably in flight on a stream that is trying to
assert rx flow control.
2018-04-19 16:15:10 +08:00
Andy Green
126be3ccf3 refactor role ops
This only refactors internal architecture and representations, the user
api is unaffected.
2018-04-11 13:39:42 +08:00
Andy Green
16e2f09710 refactor mode and states into roles and states 2018-04-06 12:22:19 +08:00
Andy Green
d830185df9 coverity 189197: workaround false cov detect
There's nothing wrong with ignoring the ringbuf filling.

But coverity infers there is because elsewhere under other
circumstances we report it.
2018-04-06 11:31:24 +08:00
Andy Green
e9931680c8 sshd: fixes 2018-04-06 10:44:02 +08:00
Andy Green
fddebfcfae QA 2018-04-06 10:38:04 +08:00
Andy Green
2a9b6f54c6 client: h2
This adds h2 http support for the client api.

The public client api requires no changes, it will detect by
ALPN if the server can handle http/2, if so, it will use it.

Multiple client connections using the lws api will be mapped on
to the same single http/2 + tls socket using http/2 streams
that are serviced simultaneously where possible.
2018-04-06 10:38:03 +08:00
Andy Green
caaf26c717 libuv: foreign loop detach doesn not require lws running the loop at all
This completely removes the loop self-running stuff.

Static allocations (uv_idle, timers etc) are referenced-counted in the context
same as the wsi are.  When lws wants to close, he first closes all his wsi, then
when that is completed in the uv close callbacks, he closes all of his static
uv handles.  When that is also completed in the uv callbacks, he stops the loop
so the lws context can destroy and exit.

Any direct libuv allocations in protocol handlers must participate in the
reference counting.  Two new apis are provided

 - lws_libuv_static_refcount_add(handle, context) to mark the handle with
   a pointer to the context and increment the global uv object counter

 - lws_libuv_static_refcount_del() which should be used as the close callback
   for your own libuv objects declared in the protocol scope.
2018-04-06 10:38:03 +08:00
Andy Green
bd6fc106d9 lws_write_ws_flags helper 2018-04-06 10:38:03 +08:00