Mercurial > hg > nginx
annotate auto/headers @ 9179:ea1f29c2010c
HTTP/2: fixed buffer management with HTTP/2 auto-detection.
As part of normal HTTP/2 processing, incomplete frames are saved in the
control state using a fixed size memcpy of NGX_HTTP_V2_STATE_BUFFER_SIZE.
For this matter, two state buffers are reserved in the HTTP/2 recv buffer.
As part of HTTP/2 auto-detection on plain TCP connections, initial data
is first read into a buffer specified by the client_header_buffer_size
directive that doesn't have state reservation. Previously, this made it
possible to over-read the buffer as part of saving the state.
The fix is to read the available buffer size rather than a fixed size.
Although memcpy of a fixed size can produce a better optimized code,
handling of incomplete frames isn't a common execution path, so it was
sacrificed for the sake of simplicity of the fix.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Sat, 21 Oct 2023 18:48:24 +0400 |
parents | d620f497c50f |
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rev | line source |
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42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
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42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
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2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
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253
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4 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
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5 |
2615 | 6 ngx_include="unistd.h"; . auto/include |
7 ngx_include="inttypes.h"; . auto/include | |
8 ngx_include="limits.h"; . auto/include | |
9 ngx_include="sys/filio.h"; . auto/include | |
2624
418c9f97bd01
fix FreeBSD before 7 building, broken in r2616
Igor Sysoev <igor@sysoev.ru>
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2615
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10 ngx_include="sys/param.h"; . auto/include |
2615 | 11 ngx_include="sys/mount.h"; . auto/include |
12 ngx_include="sys/statvfs.h"; . auto/include | |
13 ngx_include="crypt.h"; . auto/include |