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Previously flags passed by --with-ld-opt were not used when building perl
module, which meant hardening flags provided by package build systems were not
applied.
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All the errors that prevent loading configuration must be printed on the "emerg"
log level. Previously, nginx might silently fail to load configuration in some
cases as the default log level is "error".
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The ngx_log_debug() macro is internal and should not be used.
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The ssl_preread module extracts information from the SSL Client Hello message
without terminating SSL. Currently, only $ssl_preread_server_name variable
is supported, which contains server name from the SNI extension.
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In this phase, head of a stream is read and analysed before proceeding to the
content phase. Amount of data read is controlled by the module implementing
the phase, but not more than defined by the "preread_buffer_size" directive.
The time spent on processing preread is controlled by the "preread_timeout"
directive.
The typical preread phase module will parse the beginning of a stream and set
variable that may be used by the content phase, for example to make routing
decision.
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Prodded by Guido Vranken.
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No functional changes.
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Previously, it was not possible to use the stream context
inside ngx_stream_init_connection() handlers. Now, limit_conn,
access handlers, as well as those added later, can create
their own contexts.
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Previously, it was possible that some system calls could be
invoked while holding the accept mutex. This is clearly
wrong as it prevents incoming connections from being accepted
as quickly as possible.
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The $upstream_connect_time, $upstream_first_byte_time and
$upstream_session_time variables keep corresponding times.
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Keeps the full address of the upstream server. If several servers were
contacted during proxying, their addresses are separated by commas,
e.g. "192.168.1.1:80, 192.168.1.2:80".
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The stream session status is one of the following:
200 - normal completion
403 - access forbidden
500 - internal server error
502 - bad gateway
503 - limit conn
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This fixes a problem with aio threads and sendfile with aio_write switched
off, as observed with range requests after fc72784b1f52 (1.9.13). Potential
problems with sendfile in threads were previously described in 9fd738b85fad,
and this seems to be one of them.
The problem occurred as file's thread_handler was set to NULL by event pipe
code after a sendfile thread task was scheduled. As a result, no sendfile
completion code was executed, and the same buffer was additionally sent
using non-threaded sendfile. Fix is to avoid modifying file's thread_handler
if aio_write is switched off.
Note that with "aio_write on" it is still possible that sendfile will use
thread_handler as set by event pipe. This is believed to be safe though,
as handlers used are compatible.
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When c->recv_chain() returns an error, it is possible that we already
have some data previously read, e.g., in preread buffer. And in some
cases it may be even a complete response. Changed c->recv_chain() error
handling to process the data, much like it is already done if kevent
reports about an error.
This change, in particular, fixes processing of small responses
when an upstream fails to properly close a connection with lingering and
therefore the connection is reset, but the response is already fully
obtained by nginx (see ticket #1037).
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Previously, the realip module could be left with uninitialized context after an
error in the ngx_http_realip_set_addr() function. That context could be later
accessed by $realip_remote_addr and $realip_remote_port variable handlers.
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The variable keeps protocol used by the client, "TCP" or "UDP".
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The variable keeps time spent on processing the stream session.
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The variable keeps the number of bytes received from the client.
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This prevents theoretical resource leak, since those threads are never joined.
Found with ThreadSanitizer.
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
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geo $geo {
ranges;
10.0.0.0-10.0.0.255 test;
delete 10.0.1.0-10.0.1.255; # should warn
delete 10.0.0.0-10.0.0.255;
delete 10.0.0.0-10.0.0.255; # should warn
}
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If the range includes two or more /16 networks and does
not start at the /16 boundary, the last subrange was not
removed (see 91cff7f97a50 for details).
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Return 1 in the SSL_CTX_set_tlsext_ticket_key_cb() callback function
to indicate that a new session ticket is created, as per documentation.
Until 1.1.0, OpenSSL didn't make a distinction between non-negative
return values.
See https://git.openssl.org/?p=openssl.git;a=commitdiff;h=5c753de for details.
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BoringSSL added a no-op stub for OPENSSL_config() on 2016-01-26.
Requested by David Benjamin.
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
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The IP_BIND_ADDRESS_NO_PORT option is set on upstream sockets
if proxy_bind does not specify a port. The SO_REUSEADDR option
is set on UDP upstream sockets if proxy_bind specifies a port.
Due to checking of the wrong port, IP_BIND_ADDRESS_NO_PORT was
never set, and SO_REUSEPORT was always set.
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The new type ngx_uint_t was supposed when formatting the line number.
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Previously, in "ranges" mode when all added ranges were deleted,
the ctx.high.low[i] was left pointing to a temporary array.
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Unlike $upstream_response_length that only counts the body size,
the new variable also counts the size of response header and data
received after switching protocols when proxying WebSockets.
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It was removed in OpenSSL 1.1.0 Beta 3 (pre-release 6). It was
not used since OpenSSL 1.0.1n and 1.0.2b.
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The change in b91bcba29351 was not enough to fix random() seeding.
On Windows, the srand() seeds the PRNG only in the current thread,
and worse, is not inherited from the calling thread. Due to this,
worker threads were not properly seeded.
Reported by Marc Bevand.
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