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README: updated building from sources, added directives reference.
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Sergey Kandaurov
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README
147
README
@ -51,7 +51,16 @@ Experimental QUIC support for nginx
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+ Lost packets are detected and retransmitted properly
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+ Clients may migrate to new address
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2. Installing
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2. Building from sources
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The build is configured using the configure command.
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Refer to http://nginx.org/en/docs/configure.html for details.
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When configuring nginx, it's possible to enable QUIC and HTTP/3
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using the following new configuration options:
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--with-http_v3_module - enable QUIC and HTTP/3
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--with-stream_quic_module - enable QUIC in Stream
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A library that provides QUIC support is required to build nginx, there
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are several of those available on the market:
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@ -85,12 +94,6 @@ Experimental QUIC support for nginx
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--with-cc-opt="-I../libressl/build/include" \
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--with-ld-opt="-L../libressl/build/lib"
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When configuring nginx, it's possible to enable QUIC and HTTP/3
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using the following new configuration options:
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--with-http_v3_module - enable QUIC and HTTP/3
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--with-stream_quic_module - enable QUIC in Stream
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3. Configuration
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The HTTP "listen" directive got a new option "http3" which enables
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@ -174,7 +177,129 @@ Example configuration:
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}
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}
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4. Clients
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4. Directives
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Syntax: quic_bpf on | off;
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Default: quic_bpf off;
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Context: main
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Enables routing of QUIC packets using eBPF.
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When enabled, this allows to support QUIC connection migration.
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The directive is only supported on Linux 5.7+.
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Syntax: quic_retry on | off;
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Default: quic_retry off;
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Context: http | stream, server
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Enables the QUIC Address Validation feature. This includes:
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- sending a new token in a Retry packet or a NEW_TOKEN frame
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- validating a token received in the Initial packet
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Syntax: quic_gso on | off;
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Default: quic_gso off;
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Context: http | stream, server
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Enables sending in optimized batch mode using segmentation offloading.
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Optimized sending is only supported on Linux featuring UDP_SEGMENT.
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Syntax: quic_mtu size;
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Default: quic_mtu 65527;
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Context: http | stream, server
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Sets the QUIC max_udp_payload_size transport parameter value.
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This is the maximum UDP payload that we are willing to receive.
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Syntax: quic_host_key file;
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Default: -
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Context: http | stream, server
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Specifies a file with the secret key used to encrypt stateless reset and
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address validation tokens. By default, a randomly generated key is used.
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Syntax: quic_active_connection_id_limit number;
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Default: quic_active_connection_id_limit 2;
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Context: http | stream, server
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Sets the QUIC active_connection_id_limit transport parameter value.
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This is the maximum number of connection IDs we are willing to store.
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Syntax: quic_timeout time;
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Default: quic_timeout 60s;
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Context: stream, server
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Defines a timeout used to negotiate the QUIC idle timeout.
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In the http module, it is taken from the keepalive_timeout directive.
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Syntax: quic_stream_buffer_size size;
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Default: quic_stream_buffer_size 64k;
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Context: stream, server
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Syntax: http3_stream_buffer_size size;
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Default: http3_stream_buffer_size 64k;
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Context: http, server
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Sets buffer size for reading and writing of the QUIC STREAM payload.
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The buffer size is used to calculate initial flow control limits
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in the following QUIC transport parameters:
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- initial_max_data
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- initial_max_stream_data_bidi_local
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- initial_max_stream_data_bidi_remote
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- initial_max_stream_data_uni
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Syntax: http3_max_concurrent_pushes number;
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Default: http3_max_concurrent_pushes 10;
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Context: http, server
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Limits the maximum number of concurrent push requests in a connection.
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Syntax: http3_max_concurrent_streams number;
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Default: http3_max_concurrent_streams 128;
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Context: http, server
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Sets the maximum number of concurrent HTTP/3 streams in a connection.
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Syntax: http3_push uri | off;
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Default: http3_push off;
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Context: http, server, location
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Pre-emptively sends (pushes) a request to the specified uri along with
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the response to the original request. Only relative URIs with absolute
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path will be processed, for example:
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http3_push /static/css/main.css;
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The uri value can contain variables.
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Several http3_push directives can be specified on the same configuration
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level. The off parameter cancels the effect of the http3_push directives
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inherited from the previous configuration level.
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Syntax: http3_push_preload on | off;
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Default: http3_push_preload off;
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Context: http, server, location
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Enables automatic conversion of preload links specified in the “Link”
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response header fields into push requests.
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Syntax: http3_hq on | off;
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Default: http3_hq off;
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Context: http, server
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Enables HTTP/0.9 protocol negotiation used in QUIC interoperability tests.
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5. Clients
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* Browsers
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@ -201,7 +326,7 @@ Example configuration:
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"nghttp3/ngtcp2 client" "quic"
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5. Troubleshooting
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6. Troubleshooting
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Here are some tips that may help to identify problems:
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@ -231,12 +356,12 @@ Example configuration:
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#define NGX_QUIC_DEBUG_ALLOC
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#define NGX_QUIC_DEBUG_CRYPTO
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6. Contributing
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7. Contributing
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Please refer to
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http://nginx.org/en/docs/contributing_changes.html
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7. Links
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8. Links
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[1] https://datatracker.ietf.org/doc/html/rfc9000
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[2] https://datatracker.ietf.org/doc/html/rfc9114
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