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4
5LiteSpeed QUIC (LSQUIC) Library README
6=============================================
7
8Description
9-----------
10
11LiteSpeed QUIC (LSQUIC) Library is an open-source implementation of QUIC
12and HTTP/3 functionality for servers and clients.  Most of the code in this
13distribution is used in our own products: LiteSpeed Web Server, LiteSpeed ADC,
14and OpenLiteSpeed.  We think it is free of major problems.  Nevertheless, do
15not hesitate to report bugs back to us.  Even better, send us fixes and
16improvements!
17
18Currently supported QUIC versions are Q039, Q043, Q046, and ID-23.  Support
19for newer versions will be added soon after they are released.
20
21Documentation
22-------------
23
24The documentation for this module is admittedly sparse.  The API is
25documented in include/lsquic.h.  If you have doxygen, you can run
26`doxygen dox.cfg` or `make docs`.  The example program is
27test/http_client.c: a bare-bones, but working, QUIC client.  Have a look
28in EXAMPLES.txt to see how it can be used.
29
30Requirements
31------------
32
33To build LSQUIC, you need CMake, zlib, and BoringSSL.  The example program
34uses libevent to provide the event loop.
35
36Building BoringSSL
37------------------
38
39BoringSSL is not packaged; you have to build it yourself.  The process is
40straightforward.  You will need `go` installed.
41
421. Clone BoringSSL by issuing the following command:
43
44```
45git clone https://boringssl.googlesource.com/boringssl
46cd boringssl
47```
48
49You may need to install pre-requisites like zlib and libevent.
50
512. Use specific BoringSSL version
52
53```
54git checkout 49de1fc2910524c888866c7e2b0db1ba8af2a530
55```
56
573. Compile the library
58
59```
60cmake . &&  make
61```
62
63Remember where BoringSSL sources are:
64```
65BORINGSSL=$PWD
66```
67
68If you want to turn on optimizations, do
69
70```
71cmake -DCMAKE_BUILD_TYPE=Release . && make
72```
73
74Building LSQUIC Library
75-----------------------
76
77LSQUIC's `http_client`, `http_server`, and the tests link BoringSSL
78libraries statically.  Following previous section, you can build LSQUIC
79as follows:
80
811. Get the source code
82
83```
84git clone https://github.com/litespeedtech/lsquic.git
85cd lsquic
86git submodule init
87git submodule update
88```
89
902. Compile the library
91
92
93```
94# $BORINGSSL is the top-level BoringSSL directory from the previous step
95cmake -DBORINGSSL_DIR=$BORINGSSL .
96make
97```
98
993. Run tests
100
101```
102make test
103```
104
105Building with Docker
106---------
107The library and the example client and server can be built with Docker.
108
109Initialize Git submodules:
110```
111cd lsquic
112git submodule init
113git submodule update
114```
115
116Build the Docker image:
117```
118docker build -t lsquic .
119```
120
121Then you can use the examples from the command line.  For example:
122```
123sudo docker run -it --rm lsquic http_client -s www.google.com  -p / -o version=Q046
124sudo docker run -p 12345:12345/udp -v /path/to/certs:/mnt/certs -it --rm lsquic http_server -c www.example.com,/mnt/certs/chain,/mnt/certs/key
125```
126
127Platforms
128---------
129
130The library has been tested on the following platforms:
131- Linux
132  - i386
133  - x86_64
134  - ARM (Raspberry Pi 3)
135- FreeBSD
136  - i386
137- MacOS
138  - x86_64
139- Windows (this needs updating for the server part, now broken)
140  - x86_64
141
142Have fun,
143
144LiteSpeed QUIC Team.
145
146Copyright (c) 2017 - 2019 LiteSpeed Technologies Inc
147