| Commit message (Collapse) | Author | Age |
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It contains wrappers for operations with BPF maps and for loading BPF programs.
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The low-level API was used in early QUIC development.
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The <openssl/kdf.h> header is available since OpenSSL 1.1.0, and HKDF API
used for separate Extract and Expand steps in TLSv1.3 - since OpenSSL 1.1.1.
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This API is available in BoringSSL for quite some time:
https://boringssl.googlesource.com/boringssl/+/3743aaf
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Previously, when processing client ACK, rtt could be calculated for a packet
different than the largest if it was missing in the sent chain. Even though
this is an unlikely situation, rtt based on a different packet could be larger
than needed leading to bigger pto timeout and performance degradation.
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Previously, this only worked for Application level because before
quic-transport-30, there were the following constraints:
Because the receiver doesn't use the ACK Delay for Initial and Handshake
packets, a sender SHOULD send a value of 0.
When adjusting an RTT sample using peer-reported acknowledgement delays, an
endpoint ... MUST ignore the ACK Delay field of the ACK frame for packets
sent in the Initial and Handshake packet number space.
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Previously, server max_ack_delay was used which is wrong.
Also, level check is simplified.
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To speed up handshake, resend both initial and handshake packets if there's
at least one unacknowledged initial packet.
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Missing flag prevented frame data from being copied as the buffer was not
considered a memory buffer.
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Now initial output packet is not padded anymore if followed by a handshake
packet. If the datagram is still not big enough to satisfy minimum size
requirements, handshake packet is padded.
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Buffers are used to hold frame data. They have a fixed size and are reused
after being freed.
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The patch replaces c->send() occurences with c->send_chain(), because the
latter accounts for the local address, which may be different if the wildcard
listener is used.
Previously, server sent response to client using address different from
one client connected to.
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Notably, this fixes an issue with Chrome that can emit a "certificate_unknown"
alert during the SSL handshake where c->ssl->no_wait_shutdown is not yet set.
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The filter is responsible for creating HTTP/3 response header and body.
The change removes differences to the default branch for
ngx_http_chunked_filter_module and ngx_http_header_filter_module.
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The ngx_quic_get_send_ctx() macro takes 'level' argument, not send context
index.
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Instead, appropriate format specifier for hexadecimal is used
in ngx_log_debug().
The STREAM frame "data" debug is moved into ngx_quic_log_frame(), similar
to all other frame fields debug.
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The field was introduced to ease parsing HTTP/3 requests.
The change reduces diff to the default branch.
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Header value returned from the HTTP parser is expected to be null-terminated or
have a spare byte after the value bytes. When an empty header value was passed
by client in a literal header representation, neither was true. This could
result in segfault. The fix is to assign a literal empty null-terminated
string in this case.
Thanks to Andrey Kolyshkin.
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Unfinalized chain could result in segfault. The problem was introduced in
ef83990f0e25.
Patch by Andrey Kolyshkin.
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Per the latest post draft-32 specification updates on the topic:
https://github.com/quicwg/base-drafts/pull/4391
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Both clearflags and badflags are removed. It makes a little sense now
to keep them as intermediate storage.
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They no longer differ.
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This gets rid of magic numbers from quic protection and allows to push down
header construction specifics further to quic transport.
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It doesn't make sense to expose the header type in a public function.
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The largely duplicate type-specific functions ngx_quic_parse_initial_header(),
ngx_quic_parse_handshake_header(), and a missing one for 0-RTT, were merged.
The new order of functions listed in ngx_event_quic_transport.c reflects this.
|_ ngx_quic_parse_long_header - version-invariant long header fields
\_ ngx_quic_supported_version - a helper to decide we can go further
\_ ngx_quic_parse_long_header_v1 - QUICv1-specific long header fields
0-RTT packets previously appeared as Handshake are now logged as appropriate:
*1 quic packet rx long flags:db version:ff00001d
*1 quic packet rx early len:870
Logging SCID/DCID is no longer duplicated as were seen with Initial packets.
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No functional changes.
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As with the previous change, it became feasible with feec2cc762f6
that removes ngx_quic_connection_t from ngx_connection_s.
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It became feasible to reduce after feec2cc762f6 that
removes ngx_quic_connection_t from ngx_connection_s.
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Removed a useless mask from the value being shifted, since it is 1-byte wide.
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If trailers were missing and a chain carrying the last_buf flag had no data
in it, then last HTTP/1 chunk was broken. The problem was introduced while
implementing HTTP/3 response body generation.
The change fixes the issue and reduces diff to the mainline nginx.
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Previously, if quic_stateless_reset_token_key was empty or unspecified,
initial stateless reset token was not generated. However subsequent tokens
were generated with empty key, which resulted in error with certain SSL
libraries, for example OpenSSL.
Now a random 32-byte stateless reset token key is generated if none is
specified in the configuration. As a result, stateless reset tokens are now
generated for all server ids.
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A similar directive is already available in HTTP.
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Previously new dcid was generated in the same memory that was allocated for
qc->dcid when creating the QUIC connection. However this memory was also
referenced by initial_source_connection_id and retry_source_connection_id
transport parameters. As a result these parameters changed their values after
retry which broke the protocol.
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Now QUIC connection is accessed via the c->udp field.
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Also, connection migration within a single worker is implemented.
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Particularly, c->curr_seqnum is renamed to c->client_seqnum and
ngx_quic_alloc_connection_id() is renamed to ngx_quic_alloc_client_id().
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Previously, a version based on NGX_QUIC_DRAFT_VERSION was always set.
Now it is taken from the negotiated QUIC version that may differ.
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