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Author SHA1 Message Date
Andy Green
cc5fb48598 coverity: 21034: dont bother assigning shutdown api return 2020-08-18 14:00:54 +01:00
Andy Green
a424623dc6 docs: add README-debugging.md and provide example points for decrypted traffic handling
Some general debugging advice but also really clarify the official way of how to dump
what is going out and coming in directly from the tls tunnel, so you can see the
actual data unencrypted.
2020-07-30 16:23:59 +01:00
Andy Green
1a93e73402 fakewsi: replace with smaller substructure
Currently we always reserve a fakewsi per pt so events that don't have a related actual
wsi, like vhost-protocol-init or vhost cert init via protocol callback can make callbacks
that look reasonable to user protocol handler code expecting a valid wsi every time.

This patch splits out stuff that user callbacks often unconditionally expect to be in
a wsi, like context pointer, vhost pointer etc into a substructure, which is composed
into struct lws at the top of it.  Internal references (struct lws is opaque, so there
are only internal references) are all updated to go via the substructre, the compiler
should make that a NOP.

Helpers are added when fakewsi is used and referenced.

If not PLAT_FREERTOS, we continue to provide a full fakewsi in the pt as before,
although the helpers improve consistency by zeroing down the substructure.  There is
a huge amount of user code out there over the last 10 years that did not always have
the minimal examples to follow, some of it does some unexpected things.

If it is PLAT_FREERTOS, that is a newer thing in lws and users have the benefit of
being able to follow the minimal examples' approach.  For PLAT_FREERTOS we don't
reserve the fakewsi in the pt any more, saving around 800 bytes.  The helpers then
create a struct lws_a (the substructure) on the stack, zero it down (but it is only
like 4 pointers) and prepare it with whatever we know like the context.

Then we cast it to a struct lws * and use it in the user protocol handler call.
In this case, the remainder of the struct lws is undefined.  However the amount of
old protocol handlers that might touch things outside of the substructure in
PLAT_FREERTOS is very limited compared to legacy lws user code and the saving is
significant on constrained devices.

User handlers should not be touching everything in a wsi every time anyway, there
are several cases where there is no valid wsi to do the call with.  Dereference of
things outside the substructure should only happen when the callback reason shows
there is a valid wsi bound to the activity (as in all the minimal examples).
2020-07-20 06:28:52 +01:00
Andy Green
cabe021955 esp32: shift to support latest esp-idf
Esp-idf has an improved but still kind of abused cmake-
based build system now.

If we see ESP_PLATFORM coming as a cmake var, we can know we
are being built from inside the esp-idf config system.

Leave the existing esp32 arrangements alone but triggered off
ESP_PLATFORM, adapt to use the cross toolchain file and
various quirks automatically.

In this way you can build lws a part of your project in a
much cleaner way.

Prepare a minimal esp32 test app for use in Sai

Adapt .sai.json to build for esp32
2020-05-27 08:40:12 +01:00
Andy Green
33f8e219eb tls: defer listing of pending tls wsi to be managed by tls read only
https://github.com/warmcat/libwebsockets/issues/1920
2020-05-27 08:40:12 +01:00
Andy Green
0dd23d7073 tls restriction: account for pipelining and add test 2020-03-01 08:14:43 +00:00
Andy Green
66b2a4a645 tls: apply restriction if any also to client connections 2020-01-15 16:32:48 +00:00
Andy Green
0bfd39135e cleaning 2020-01-05 22:17:58 +00:00
Andy Green
d808748cd6 detailed latency stats
Remove LWS_LATENCY.

Add the option LWS_WITH_DETAILED_LATENCY, allowing lws to collect very detailed
information on every read and write, and allow the user code to provide
a callback to process events.
2019-09-22 03:06:59 -07:00
Andy Green
0fa5563d18 freertos: rename esp32 plat to freertos 2019-08-26 09:58:57 +01:00
Andy Green
ae69bfbd10 debloat: remove things from being built by default that should be conditional 2019-08-26 09:58:57 +01:00
Andy Green
d7f0521aeb private.h: rename to contain dir
Having unique private header names is a requirement of a particular
platform build system it's desirable to work with
2019-08-15 10:49:52 +01:00
Renamed from lib/tls/mbedtls/ssl.c (Browse further)