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QUIC: refined sending CONNECTION_CLOSE in various packet types.
As per RFC 9000, section 10.2.3, to ensure that peer successfully removed
packet protection, CONNECTION_CLOSE can be sent in multiple packets using
different packet protection levels.
Now it is sent in all protection levels available.
This roughly corresponds to the following paragraph:
* Prior to confirming the handshake, a peer might be unable to process 1-RTT
packets, so an endpoint SHOULD send a CONNECTION_CLOSE frame in both Handshake
and 1-RTT packets. A server SHOULD also send a CONNECTION_CLOSE frame in an
Initial packet.
In practice, this change allows to avoid sending an Initial packet when we know
the client has handshake keys, by checking if we have discarded initial keys.
Also, this fixes sending CONNECTION_CLOSE when using QuicTLS with old QUIC API,
where TLS stack releases application read keys before handshake confirmation;
it is fixed by sending CONNECTION_CLOSE additionally in a Handshake packet.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Fri, 01 Sep 2023 20:31:46 +0400 |
parents | 4b1299b1856a |
children |
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# Copyright (C) Ruslan Ermilov # Copyright (C) Nginx, Inc. case $ngx_module_type in HTTP_*) ngx_var=HTTP ;; *) ngx_var=$ngx_module_type ;; esac if [ "$ngx_module_link" = DYNAMIC ]; then for ngx_module in $ngx_module_name; do # extract the first name break done DYNAMIC_MODULES="$DYNAMIC_MODULES $ngx_module" eval ${ngx_module}_MODULES=\"$ngx_module_name\" if [ -z "$ngx_module_order" -a \ \( "$ngx_module_type" = "HTTP_FILTER" \ -o "$ngx_module_type" = "HTTP_AUX_FILTER" \) ] then eval ${ngx_module}_ORDER=\"$ngx_module_name \ ngx_http_copy_filter_module\" else eval ${ngx_module}_ORDER=\"$ngx_module_order\" fi srcs= shrd= for src in $ngx_module_srcs do found=no for old in $DYNAMIC_MODULES_SRCS do if [ $src = $old ]; then found=yes break fi done if [ $found = no ]; then srcs="$srcs $src" else shrd="$shrd $src" fi done eval ${ngx_module}_SRCS=\"$srcs\" eval ${ngx_module}_SHRD=\"$shrd\" DYNAMIC_MODULES_SRCS="$DYNAMIC_MODULES_SRCS $srcs" if test -n "$ngx_module_incs"; then CORE_INCS="$CORE_INCS $ngx_module_incs" fi if test -n "$ngx_module_deps"; then NGX_ADDON_DEPS="$NGX_ADDON_DEPS $ngx_module_deps" fi libs= for lib in $ngx_module_libs do case $lib in LIBXSLT | LIBGD | GEOIP | PERL) libs="$libs \$NGX_LIB_$lib" if eval [ "\$USE_${lib}" = NO ] ; then eval USE_${lib}=DYNAMIC fi ;; PCRE | OPENSSL | ZLIB) eval USE_${lib}=YES ;; MD5 | SHA1) # obsolete ;; *) libs="$libs $lib" ;; esac done eval ${ngx_module}_LIBS=\'$libs\' elif [ "$ngx_module_link" = YES ]; then eval ${ngx_module_type}_MODULES=\"\$${ngx_module_type}_MODULES \ $ngx_module_name\" eval ${ngx_var}_SRCS=\"\$${ngx_var}_SRCS $ngx_module_srcs\" if test -n "$ngx_module_incs"; then eval ${ngx_var}_INCS=\"\$${ngx_var}_INCS $ngx_module_incs\" fi if test -n "$ngx_module_deps"; then eval ${ngx_var}_DEPS=\"\$${ngx_var}_DEPS $ngx_module_deps\" fi for lib in $ngx_module_libs do case $lib in PCRE | OPENSSL | ZLIB | LIBXSLT | LIBGD | PERL | GEOIP) eval USE_${lib}=YES ;; MD5 | SHA1) # obsolete ;; *) CORE_LIBS="$CORE_LIBS $lib" ;; esac done elif [ "$ngx_module_link" = ADDON ]; then eval ${ngx_module_type}_MODULES=\"\$${ngx_module_type}_MODULES \ $ngx_module_name\" srcs= for src in $ngx_module_srcs do found=no for old in $NGX_ADDON_SRCS do if [ $src = $old ]; then found=yes break fi done if [ $found = no ]; then srcs="$srcs $src" fi done NGX_ADDON_SRCS="$NGX_ADDON_SRCS $srcs" if test -n "$ngx_module_incs"; then eval ${ngx_var}_INCS=\"\$${ngx_var}_INCS $ngx_module_incs\" fi if test -n "$ngx_module_deps"; then NGX_ADDON_DEPS="$NGX_ADDON_DEPS $ngx_module_deps" fi for lib in $ngx_module_libs do case $lib in PCRE | OPENSSL | ZLIB | LIBXSLT | LIBGD | PERL | GEOIP) eval USE_${lib}=YES ;; MD5 | SHA1) # obsolete ;; *) CORE_LIBS="$CORE_LIBS $lib" ;; esac done fi