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The build location of the resulting libatomic_ops.a was changed in v7.4.0
after converting libatomic_ops to use libtool. The fix is to use library
from the install path, this allows building with both old and new versions.
Initially reported here:
https://mailman.nginx.org/pipermail/nginx/2018-April/056054.html
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Added ngx_openssl_cache_module, which indexes a type-aware object cache.
It maps an id to a unique instance, and provides references to it, which
are dropped when the cycle's pool is destroyed.
The cache will be used in subsequent patches.
Based on previous work by Mini Hawthorne.
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Using "long *" instead of "AO_t *" leads either to -Wincompatible-pointer-types
or -Wpointer-sign warnings, depending on whether long and size_t are compatible
types (e.g., ILP32 versus LP64 data models). Notably, -Wpointer-sign warnings
are enabled by default in Clang only, and -Wincompatible-pointer-types is an
error starting from GCC 14.
Signed-off-by: Edgar Bonet <bonet@grenoble.cnrs.fr>
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Signed-off-by: Piotr Sikora <piotr@aviatrix.com>
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Signed-off-by: Piotr Sikora <piotr@aviatrix.com>
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Signed-off-by: Piotr Sikora <piotr@aviatrix.com>
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Based on a patch by Piotr Sikora.
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Previously, the resulting binary was successfully linked
because libcrypt was added in a separate test for crypt().
Patch by Piotr Sikora.
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The module allows to pass connections from Stream to other modules such as HTTP
or Mail, as well as back to Stream. Previously, this was only possible with
proxying. Connections with preread buffer read out from socket cannot be
passed.
The module allows selective SSL termination based on SNI.
stream {
server {
listen 8000 default_server;
ssl_preread on;
...
}
server {
listen 8000;
server_name foo.example.com;
pass 127.0.0.1:8001; # to HTTP
}
server {
listen 8000;
server_name bar.example.com;
...
}
}
http {
server {
listen 8001 ssl;
...
location / {
root html;
}
}
}
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With this change, the NGX_OPENSSL_NO_CONFIG macro is defined when nginx
is asked to build OpenSSL itself. And with this macro automatic loading
of OpenSSL configuration (from the build directory) is prevented unless
the OPENSSL_CONF environment variable is explicitly set.
Note that not loading configuration is broken in OpenSSL 1.1.1 and 1.1.1a
(fixed in OpenSSL 1.1.1b, see https://github.com/openssl/openssl/issues/7350).
If nginx is used to compile these OpenSSL versions, configuring nginx with
NGX_OPENSSL_NO_CONFIG explicitly set to 0 might be used as a workaround.
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Although it has better implementation status than HTTP/3 server push,
it remains of limited use, with adoption numbers seen as negligible.
Per IETF 102 materials, server push was used only in 0.04% of sessions.
It was considered to be "difficult to use effectively" in RFC 9113.
Its use is further limited by badly matching to fetch/cache/connection
models in browsers, see related discussions linked from [1].
Server push was disabled in Chrome 106 [2].
The http2_push, http2_push_preload, and http2_max_concurrent_pushes
directives are made obsolete. In particular, this essentially reverts
7201:641306096f5b and 7207:3d2b0b02bd3d.
[1] https://jakearchibald.com/2017/h2-push-tougher-than-i-thought/
[2] https://chromestatus.com/feature/6302414934114304
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As per RFC 9000, Section 14:
UDP datagrams MUST NOT be fragmented at the IP layer.
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To ensure proper target selection the NGX_MACHINE variable is now set
based on the MSVC compiler output, and the OpenSSL target is set based
on it.
This is not important as long as "no-asm" is used (as in misc/GNUmakefile
and win32 build instructions), but might be beneficial if someone is trying
to build OpenSSL with assembler code.
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Previously, NGX_MACHINE was not set when crossbuilding, resulting in
NGX_ALIGNMENT=16 being used in 32-bit builds (if not explicitly set to a
correct value). This in turn might result in memory corruption in
ngx_palloc() (as there are no usable aligned allocator on Windows, and
normal malloc() is used instead, which provides 8 byte alignment on
32-bit platforms).
To fix this, now i386 machine is set when crossbuilding, so nginx won't
assume strict alignment requirements.
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Output examples in English, Russian, and Spanish:
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.30319.01 for 80x86
Оптимизирующий 32-разрядный компилятор Microsoft (R) C/C++ версии 16.00.30319.01 для 80x86
Compilador de optimización de C/C++ de Microsoft (R) versión 16.00.30319.01 para x64
Since most of the words are translated, instead of looking for the words
"Compiler Version" we now search for "C/C++" and the version number.
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Wildcards for msvc in NGX_CC_NAME tests are not needed since 78f8ac479735.
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The change allows to compile QUIC with OpenSSL which lacks BoringSSL QUIC API.
This implementation does not support 0-RTT.
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In nginx source code the inttypes.h include, if available, is used to define
standard integer types. Changed the SO_COOKIE configure test to follow this.
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Threads are disabled during UNIX builds (see b329c0ab1a48), and also not
needed for Windows builds.
This used to be the default before OpenSSL 1.1.0.
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In particular, this sets a reasonable cacheline size on FreeBSD and macOS,
which prefer to use this name and both lack _SC_LEVEL1_DCACHE_LINESIZE.
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Previously, QUIC used the existing UDP framework, which was created for UDP in
Stream. However the way QUIC connections are created and looked up is different
from the way UDP connections in Stream are created and looked up. Now these
two implementations are decoupled.
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Starting with FreeBSD 11, there is no need to use AIO operations to preload
data into cache for sendfile(SF_NODISKIO) to work. Instead, sendfile()
handles non-blocking loading data from disk by itself. It still can, however,
return EBUSY if a page is already being loaded (for example, by a different
process). If this happens, we now post an event for the next event loop
iteration, so sendfile() is retried "after a short period", as manpage
recommends.
The limit of the number of EBUSY tolerated without any progress is preserved,
but now it does not result in an alert, since on an idle system event loop
iteration might be very short and EBUSY can happen many times in a row.
Instead, SF_NODISKIO is simply disabled for one call once the limit is
reached.
With this change, sendfile(SF_NODISKIO) is now used automatically as long as
sendfile() is enabled, and no longer requires "aio on;".
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The PCRE2 library is now used by default if found, instead of the
original PCRE library. If needed for some reason, this can be disabled
with the --without-pcre2 configure option.
To make it possible to specify paths to the library and include files
via --with-cc-opt / --with-ld-opt, the library is first tested without
any additional paths and options. If this fails, the pcre2-config script
is used.
Similarly to the original PCRE library, it is now possible to build PCRE2
from sources with nginx configure, by using the --with-pcre= option.
It automatically detects if PCRE or PCRE2 sources are provided.
Note that compiling PCRE2 10.33 and later requires inttypes.h. When
compiling on Windows with MSVC, inttypes.h is only available starting
with MSVC 2013. In older versions some replacement needs to be provided
("echo '#include <stdint.h>' > pcre2-10.xx/src/inttypes.h" is good enough
for MSVC 2010).
The interface on nginx side remains unchanged.
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Removed ICC-specific PCRE optimizations which tried to link with PCRE
object files instead of the library. Made compiler-specific code
minimal.
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ngx_http_v2_huff_decode.c and ngx_http_v2_huff_encode.c are renamed
to ngx_http_huff_decode.c and ngx_http_huff_encode.c.
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The test verifies kernel version on a build machine,
but actually used kernel may be different.
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Renamed and removed some macros.
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ngx_http_v3_tables.h and ngx_http_v3_tables.c are renamed to
ngx_http_v3_table.h and ngx_http_v3_table.c to better match HTTP/2 code.
ngx_http_v3_streams.h and ngx_http_v3_streams.c are renamed to
ngx_http_v3_uni.h and ngx_http_v3_uni.c to better match their content.
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OpenSSL library QUIC support cannot be tested at configure time when
using the --with-openssl option so assume it's present if requested.
While here, fixed the error message in case QUIC support is missing.
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As was changed in 253cf267f95a.
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The Huffman encoder/decoder now can be built separately from HTTP/2 module.
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To improve output performance, UDP segmentation offloading is used
if available. If there is a significant amount of data in an output
queue and path is verified, QUIC packets are not sent one-by-one,
but instead are collected in a buffer, which is then passed to kernel
in a single sendmsg call, using UDP GSO. Such method greatly decreases
number of system calls and thus system load.
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