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498a4e2bd7
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 |
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| .. | ||
| CMakeLists.txt | ||
| minimal-raw-proxy.c | ||
| README.md | ||
lws minimal ws server raw proxy
This demonstrates how a vhost can be bound to a specific role and protocol, with the example using a lws plugin that performs raw packet proxying.
By default the example will proxy 127.0.0.1:22, usually your ssh server listen port, on 127.0.0.1:7681. You should be able to ssh into port 7681 the same as you can port 22. But your ssh server is only listening on port 22...
build
To build this standalone, you must tell cmake where the lws source tree ./plugins directory can be found, since it relies on including the source of the raw-proxy plugin.
$ cmake . -DLWS_PLUGINS_DIR=~/libwebsockets/plugins && make
usage
| Commandline option | Meaning |
|---|---|
| -d | Debug verbosity in decimal, eg, -d15 |
| -r ipv4:address:port | Configure the remote IP and port that will be proxied, by default ipv4:127.0.0.1:22 |
$ ./lws-minimal-raw-proxy
[2018/11/30 19:22:35:7290] USER: LWS minimal raw proxy | nc localhost 7681
[2018/11/30 19:22:35:7291] NOTICE: Creating Vhost 'default' port 7681, 1 protocols, IPv6 off
[2018/11/30 19:22:35:7336] NOTICE: callback_raw_proxy: onward ipv4 127.0.0.1:22
...
$ ssh -p7681 me@127.0.0.1
Last login: Fri Nov 30 19:29:23 2018 from 127.0.0.1
[me@learn ~]$