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b3131fdfdd
Establish a new distributed CMake architecture with CMake code related to a source directory moving to be in the subdir in its own CMakeLists.txt. In particular, there's now one in ./lib which calls through to ones further down the directory tree like ./lib/plat/xxx, ./lib/roles/xxx etc. This cuts the main CMakelists.txt from 98KB -> 33KB, about a 66% reduction, and it's much easier to maintain sub-CMakeLists.txt that are in the same directory as the sources they manage, and conceal all the details that that level. Child CMakelists.txt become responsible for: - include_directories() definition (this is not supported by CMake directly, it passes it back up via PARENT_SCOPE vars in helper macros) - Addition child CMakeLists.txt inclusion, for example toplevel -> role -> role subdir - Source file addition to the build - Dependent library path resolution... this is now a private thing in the child CMakeLists.txt, it just passes back any adaptations to include_directories() and the LIB_LIST without filling the parent namespace with the details |
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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 ~]$