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gRPC: RST_STREAM(NO_ERROR) handling after "trailer only" responses. Similarly to the problem fixed in 2096b21fcd10 (ticket #1792), when a "trailer only" gRPC response (that is, a response with the END_STREAM flag in the HEADERS frame) was immediately followed by RST_STREAM(NO_ERROR) in the data preread along with the response header, RST_STREAM wasn't properly skipped and caused "upstream rejected request with error 0" errors. Observed with "unknown service" gRPC errors returned by grpc-go. Fix is to set ctx->done if we are going to parse additional data, so the RST_STREAM(NO_ERROR) is properly skipped. Additionally, now ngx_http_grpc_filter() will complain about frames sent for closed stream if there are any.
author Pavel Pautov <p.pautov@f5.com>
date Wed, 18 Nov 2020 18:41:16 -0800
parents 53ea5694d1cc
children
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# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


cat << END                                                    >> $NGX_MAKEFILE

$NGX_OBJS/src/http/modules/perl/ngx_http_perl_module.o: \\
		$NGX_OBJS/$ngx_perl_module

$NGX_OBJS/$ngx_perl_module: \\
		\$(CORE_DEPS) \$(HTTP_DEPS) \\
		src/http/modules/perl/ngx_http_perl_module.h \\
		$NGX_OBJS/src/http/modules/perl/Makefile
	cd $NGX_OBJS/src/http/modules/perl && \$(MAKE)

	rm -rf $NGX_OBJS/install_perl


$NGX_OBJS/src/http/modules/perl/Makefile: \\
		$NGX_AUTO_CONFIG_H \\
		src/core/nginx.h \\
		src/http/modules/perl/Makefile.PL \\
		src/http/modules/perl/nginx.pm \\
		src/http/modules/perl/nginx.xs \\
		src/http/modules/perl/typemap
	grep 'define NGINX_VERSION' src/core/nginx.h \\
		| sed -e 's/^.*"\(.*\)".*/\1/' > \\
		$NGX_OBJS/src/http/modules/perl/version
	sed "s/%%VERSION%%/\`cat $NGX_OBJS/src/http/modules/perl/version\`/" \\
		src/http/modules/perl/nginx.pm > \\
		$NGX_OBJS/src/http/modules/perl/nginx.pm
	cp -p src/http/modules/perl/nginx.xs $NGX_OBJS/src/http/modules/perl/
	cp -p src/http/modules/perl/typemap $NGX_OBJS/src/http/modules/perl/
	cp -p src/http/modules/perl/Makefile.PL $NGX_OBJS/src/http/modules/perl/

	cd $NGX_OBJS/src/http/modules/perl \\
		&& NGX_PM_CFLAGS="\$(NGX_PM_CFLAGS) -g $NGX_CC_OPT" \\
			NGX_PM_LDFLAGS="$NGX_LD_OPT \$(NGX_PM_LDFLAGS)" \\
			NGX_INCS="$CORE_INCS $NGX_OBJS $HTTP_INCS" \\
			NGX_DEPS="\$(CORE_DEPS) \$(HTTP_DEPS)" \\
		$NGX_PERL Makefile.PL \\
			LIB=$NGX_PERL_MODULES \\
			INSTALLSITEMAN3DIR=$NGX_PERL_MODULES_MAN

END