Mercurial > hg > nginx
view misc/GNUmakefile @ 6874:7cc2d3a96ea3
Fixed trailer construction with limit on FreeBSD and macOS.
The ngx_chain_coalesce_file() function may produce more bytes to send then
requested in the limit passed, as it aligns the last file position
to send to memory page boundary. As a result, (limit - send) may become
negative. This resulted in big positive number when converted to size_t
while calling ngx_output_chain_to_iovec().
Another part of the problem is in ngx_chain_coalesce_file(): it changes cl
to the next chain link even if the current buffer is only partially sent
due to limit.
Therefore, if a file buffer was not expected to be fully sent due to limit,
and was followed by a memory buffer, nginx called sendfile() with a part
of the file buffer, and the memory buffer in trailer. If there were enough
room in the socket buffer, this resulted in a part of the file buffer being
skipped, and corresponding part of the memory buffer sent instead.
The bug was introduced in 8e903522c17a (1.7.8). Configurations affected
are ones using limits, that is, limit_rate and/or sendfile_max_chunk, and
memory buffers after file ones (may happen when using subrequests or
with proxying with disk buffering).
Fix is to explicitly check if (send < limit) before constructing trailer
with ngx_output_chain_to_iovec(). Additionally, ngx_chain_coalesce_file()
was modified to preserve unfinished file buffers in cl.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Fri, 20 Jan 2017 21:12:48 +0300 |
| parents | c2c13f1f47fd |
| children | 8acc44141e44 |
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VER = $(shell grep 'define NGINX_VERSION' src/core/nginx.h \ | sed -e 's/^.*"\(.*\)".*/\1/') NGINX = nginx-$(VER) TEMP = tmp CC = cl OBJS = objs.msvc8 OPENSSL = openssl-1.0.2j ZLIB = zlib-1.2.8 PCRE = pcre-8.39 release: export mv $(TEMP)/$(NGINX)/auto/configure $(TEMP)/$(NGINX) # delete incomplete sources rm $(TEMP)/$(NGINX)/src/event/ngx_event_acceptex.c rm $(TEMP)/$(NGINX)/src/event/ngx_event_connectex.c rm $(TEMP)/$(NGINX)/src/event/modules/ngx_iocp_module.* rm -r $(TEMP)/$(NGINX)/src/os/win32 mv $(TEMP)/$(NGINX)/docs/text/LICENSE $(TEMP)/$(NGINX) mv $(TEMP)/$(NGINX)/docs/text/README $(TEMP)/$(NGINX) mv $(TEMP)/$(NGINX)/docs/html $(TEMP)/$(NGINX) mv $(TEMP)/$(NGINX)/docs/man $(TEMP)/$(NGINX) $(MAKE) -f docs/GNUmakefile changes rm -r $(TEMP)/$(NGINX)/docs rm -r $(TEMP)/$(NGINX)/misc tar -c -z -f $(NGINX).tar.gz --directory $(TEMP) $(NGINX) export: rm -rf $(TEMP) hg archive -X '.hg*' $(TEMP)/$(NGINX) RELEASE: hg ci -m nginx-$(VER)-RELEASE hg tag -m "release-$(VER) tag" release-$(VER) $(MAKE) -f misc/GNUmakefile release win32: ./auto/configure \ --with-cc=$(CC) \ --builddir=$(OBJS) \ --with-debug \ --prefix= \ --conf-path=conf/nginx.conf \ --pid-path=logs/nginx.pid \ --http-log-path=logs/access.log \ --error-log-path=logs/error.log \ --sbin-path=nginx.exe \ --http-client-body-temp-path=temp/client_body_temp \ --http-proxy-temp-path=temp/proxy_temp \ --http-fastcgi-temp-path=temp/fastcgi_temp \ --http-scgi-temp-path=temp/scgi_temp \ --http-uwsgi-temp-path=temp/uwsgi_temp \ --with-cc-opt=-DFD_SETSIZE=1024 \ --with-pcre=$(OBJS)/lib/$(PCRE) \ --with-zlib=$(OBJS)/lib/$(ZLIB) \ --with-select_module \ --with-http_realip_module \ --with-http_addition_module \ --with-http_sub_module \ --with-http_dav_module \ --with-http_stub_status_module \ --with-http_flv_module \ --with-http_mp4_module \ --with-http_gunzip_module \ --with-http_gzip_static_module \ --with-http_auth_request_module \ --with-http_random_index_module \ --with-http_secure_link_module \ --with-http_slice_module \ --with-mail \ --with-stream \ --with-openssl=$(OBJS)/lib/$(OPENSSL) \ --with-openssl-opt=no-asm \ --with-http_ssl_module \ --with-mail_ssl_module \ --with-stream_ssl_module zip: export rm -f $(NGINX).zip mkdir -p $(TEMP)/$(NGINX)/docs.new mkdir -p $(TEMP)/$(NGINX)/logs mkdir -p $(TEMP)/$(NGINX)/temp sed -i '' -e "s/$$/`printf '\r'`/" $(TEMP)/$(NGINX)/conf/* mv $(TEMP)/$(NGINX)/docs/text/LICENSE $(TEMP)/$(NGINX)/docs.new mv $(TEMP)/$(NGINX)/docs/text/README $(TEMP)/$(NGINX)/docs.new mv $(TEMP)/$(NGINX)/docs/html $(TEMP)/$(NGINX) rm -r $(TEMP)/$(NGINX)/docs mv $(TEMP)/$(NGINX)/docs.new $(TEMP)/$(NGINX)/docs cp -p $(OBJS)/nginx.exe $(TEMP)/$(NGINX) $(MAKE) -f docs/GNUmakefile changes mv $(TEMP)/$(NGINX)/CHANGES* $(TEMP)/$(NGINX)/docs/ cp -p $(OBJS)/lib/$(OPENSSL)/LICENSE \ $(TEMP)/$(NGINX)/docs/OpenSSL.LICENSE cp -p $(OBJS)/lib/$(PCRE)/LICENCE \ $(TEMP)/$(NGINX)/docs/PCRE.LICENCE sed -ne '/^ (C) 1995-20/,/^ jloup@gzip\.org/p' \ $(OBJS)/lib/$(ZLIB)/README \ > $(TEMP)/$(NGINX)/docs/zlib.LICENSE touch -r $(OBJS)/lib/$(ZLIB)/README \ $(TEMP)/$(NGINX)/docs/zlib.LICENSE rm -r $(TEMP)/$(NGINX)/auto rm -r $(TEMP)/$(NGINX)/misc rm -r $(TEMP)/$(NGINX)/src cd $(TEMP) && zip -r ../$(NGINX).zip $(NGINX) icons: src/os/win32/nginx.ico # 48x48, 32x32 and 16x16 icons src/os/win32/nginx.ico: src/os/win32/nginx_icon48.xpm \ src/os/win32/nginx_icon32.xpm \ src/os/win32/nginx_icon16.xpm test -d $(TEMP) || mkdir $(TEMP) xpmtoppm --alphaout=$(TEMP)/nginx48.pbm \ src/os/win32/nginx_icon48.xpm > $(TEMP)/nginx48.ppm xpmtoppm --alphaout=$(TEMP)/nginx32.pbm \ src/os/win32/nginx_icon32.xpm > $(TEMP)/nginx32.ppm xpmtoppm --alphaout=$(TEMP)/nginx16.pbm \ src/os/win32/nginx_icon16.xpm > $(TEMP)/nginx16.ppm ppmtowinicon -output src/os/win32/nginx.ico -andpgms \ $(TEMP)/nginx48.ppm $(TEMP)/nginx48.pbm \ $(TEMP)/nginx32.ppm $(TEMP)/nginx32.pbm \ $(TEMP)/nginx16.ppm $(TEMP)/nginx16.pbm