view auto/summary @ 7694:09fb2135a589

SSL: fixed shutdown handling. Previously, bidirectional shutdown never worked, due to two issues in the code: 1. The code only tested SSL_ERROR_WANT_READ and SSL_ERROR_WANT_WRITE when there was an error in the error queue, which cannot happen. The bug was introduced in an attempt to fix unexpected error logging as reported with OpenSSL 0.9.8g (http://mailman.nginx.org/pipermail/nginx/2008-January/003084.html). 2. The code never called SSL_shutdown() for the second time to wait for the peer's close_notify alert. This change fixes both issues. Note that after this change bidirectional shutdown is expected to work for the first time, so c->ssl->no_wait_shutdown now makes a difference. This is not a problem for HTTP code which always uses c->ssl->no_wait_shutdown, but might be a problem for stream and mail code, as well as 3rd party modules. To minimize the effect of the change, the timeout, which was used to be 30 seconds and not configurable, though never actually used, is now set to 3 seconds. It is also expanded to apply to both SSL_ERROR_WANT_READ and SSL_ERROR_WANT_WRITE, so timeout is properly set if writing to the socket buffer is not possible.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 10 Aug 2020 18:52:09 +0300
parents 9eefb38f0005
children 0b5f12d5c531
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# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


echo
echo "Configuration summary"


if [ $USE_THREADS = YES ]; then
    echo "  + using threads"
fi

if [ $USE_PCRE = DISABLED ]; then
    echo "  + PCRE library is disabled"

else
    case $PCRE in
        YES)   echo "  + using system PCRE library" ;;
        NONE)  echo "  + PCRE library is not used" ;;
        *)     echo "  + using PCRE library: $PCRE" ;;
    esac
fi

case $OPENSSL in
    YES)   echo "  + using system OpenSSL library" ;;
    NONE)  echo "  + OpenSSL library is not used" ;;
    *)     echo "  + using OpenSSL library: $OPENSSL" ;;
esac

case $ZLIB in
    YES)   echo "  + using system zlib library" ;;
    NONE)  echo "  + zlib library is not used" ;;
    *)     echo "  + using zlib library: $ZLIB" ;;
esac

case $NGX_LIBATOMIC in
    YES)   echo "  + using system libatomic_ops library" ;;
    NO)    ;; # not used
    *)     echo "  + using libatomic_ops library: $NGX_LIBATOMIC" ;;
esac

echo


cat << END
  nginx path prefix: "$NGX_PREFIX"
  nginx binary file: "$NGX_SBIN_PATH"
  nginx modules path: "$NGX_MODULES_PATH"
  nginx configuration prefix: "$NGX_CONF_PREFIX"
  nginx configuration file: "$NGX_CONF_PATH"
  nginx pid file: "$NGX_PID_PATH"
END

if test -n "$NGX_ERROR_LOG_PATH"; then
    echo "  nginx error log file: \"$NGX_ERROR_LOG_PATH\""
else
    echo "  nginx logs errors to stderr"
fi

cat << END
  nginx http access log file: "$NGX_HTTP_LOG_PATH"
  nginx http client request body temporary files: "$NGX_HTTP_CLIENT_TEMP_PATH"
END

if [ $HTTP_PROXY = YES ]; then
    echo "  nginx http proxy temporary files: \"$NGX_HTTP_PROXY_TEMP_PATH\""
fi

if [ $HTTP_FASTCGI = YES ]; then
    echo "  nginx http fastcgi temporary files: \"$NGX_HTTP_FASTCGI_TEMP_PATH\""
fi

if [ $HTTP_UWSGI = YES ]; then
    echo "  nginx http uwsgi temporary files: \"$NGX_HTTP_UWSGI_TEMP_PATH\""
fi

if [ $HTTP_SCGI = YES ]; then
    echo "  nginx http scgi temporary files: \"$NGX_HTTP_SCGI_TEMP_PATH\""
fi

echo "$NGX_POST_CONF_MSG"