Mercurial > hg > nginx-quic
view src/os/unix/ngx_freebsd_config.h @ 6428:545b5e4d83b2
Upstream: avoid closing client connection in edge case.
If proxy_cache is enabled, and proxy_no_cache tests true, it was previously
possible for the client connection to be closed after a 304. The fix is to
recheck r->header_only after the final cacheability is determined, and end the
request if no longer cacheable.
Example configuration:
proxy_cache foo;
proxy_cache_bypass 1;
proxy_no_cache 1;
If a client sends If-None-Match, and the upstream server returns 200 with a
matching ETag, no body should be returned to the client. At the start of
ngx_http_upstream_send_response proxy_no_cache is not yet tested, thus cacheable
is still 1 and downstream_error is set.
However, by the time the downstream_error check is done in process_request,
proxy_no_cache has been tested and cacheable is set to 0. The client connection
is then closed, regardless of keepalive.
author | Justin Li <jli.justinli@gmail.com> |
---|---|
date | Tue, 08 Mar 2016 22:31:55 -0500 |
parents | 7142b04337d6 |
children | 7f035fd1ec7b |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_FREEBSD_CONFIG_H_INCLUDED_ #define _NGX_FREEBSD_CONFIG_H_INCLUDED_ #include <sys/types.h> #include <sys/time.h> #include <unistd.h> #include <stdarg.h> #include <stddef.h> /* offsetof() */ #include <stdio.h> #include <stdlib.h> #include <ctype.h> #include <errno.h> #include <string.h> #include <signal.h> #include <pwd.h> #include <grp.h> #include <dirent.h> #include <glob.h> #include <time.h> #include <sys/param.h> /* ALIGN() */ #include <sys/mount.h> /* statfs() */ #include <sys/filio.h> /* FIONBIO */ #include <sys/uio.h> #include <sys/stat.h> #include <fcntl.h> #include <sys/wait.h> #include <sys/mman.h> #include <sys/resource.h> #include <sched.h> #include <sys/socket.h> #include <netinet/in.h> #include <netinet/tcp.h> /* TCP_NODELAY, TCP_NOPUSH */ #include <arpa/inet.h> #include <netdb.h> #include <sys/un.h> #include <libutil.h> /* setproctitle() before 4.1 */ #include <osreldate.h> #include <sys/sysctl.h> #include <dlfcn.h> #if __FreeBSD_version < 400017 /* * FreeBSD 3.x has no CMSG_SPACE() and CMSG_LEN() and has the broken CMSG_DATA() */ #undef CMSG_SPACE #define CMSG_SPACE(l) (ALIGN(sizeof(struct cmsghdr)) + ALIGN(l)) #undef CMSG_LEN #define CMSG_LEN(l) (ALIGN(sizeof(struct cmsghdr)) + (l)) #undef CMSG_DATA #define CMSG_DATA(cmsg) ((u_char *)(cmsg) + ALIGN(sizeof(struct cmsghdr))) #endif #include <ngx_auto_config.h> #if (NGX_HAVE_POSIX_SEM) #include <semaphore.h> #endif #if (NGX_HAVE_POLL) #include <poll.h> #endif #if (NGX_HAVE_KQUEUE) #include <sys/event.h> #endif #if (NGX_HAVE_FILE_AIO) #include <aio.h> typedef struct aiocb ngx_aiocb_t; #endif #define NGX_LISTEN_BACKLOG -1 #ifdef __DragonFly__ #define NGX_KEEPALIVE_FACTOR 1000 #endif #ifndef IOV_MAX #define IOV_MAX 1024 #endif #ifndef NGX_HAVE_INHERITED_NONBLOCK #define NGX_HAVE_INHERITED_NONBLOCK 1 #endif #define NGX_HAVE_OS_SPECIFIC_INIT 1 #define NGX_HAVE_DEBUG_MALLOC 1 extern char **environ; extern char *malloc_options; #endif /* _NGX_FREEBSD_CONFIG_H_INCLUDED_ */