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annotate src/http/ngx_http_spdy_module.h @ 5356:acd51b0f6fd4

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Disable symlinks: use O_PATH to open path components. It was introduced in Linux 2.6.39, glibc 2.14 and allows to obtain file descriptors without actually opening files. Thus made it possible to traverse path with openat() syscalls without the need to have read permissions for path components. It is effectively emulates O_SEARCH which is missing on Linux. O_PATH is used in combination with O_RDONLY. The last one is ignored if O_PATH is used, but it allows nginx to not fail when it was built on modern system (i.e. glibc 2.14+) and run with a kernel older than 2.6.39. Then O_PATH is unknown to the kernel and ignored, while O_RDONLY is used. Sadly, fstat() is not working with O_PATH descriptors till Linux 3.6. As a workaround we fallback to fstatat() with the AT_EMPTY_PATH flag that was introduced at the same time as O_PATH.
author Valentin Bartenev <vbart@nginx.com>
date Mon, 02 Sep 2013 08:07:59 +0400
parents c0f7b94e88ba
children e5fb14e85040
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1
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 * Copyright (C) Valentin V. Bartenev
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5 */
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8 #ifndef _NGX_HTTP_SPDY_MODULE_H_INCLUDED_
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9 #define _NGX_HTTP_SPDY_MODULE_H_INCLUDED_
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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14 #include <ngx_http.h>
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17 typedef struct {
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18 size_t recv_buffer_size;
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19 u_char *recv_buffer;
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20 } ngx_http_spdy_main_conf_t;
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23 typedef struct {
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24 size_t pool_size;
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25 ngx_uint_t concurrent_streams;
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26 ngx_uint_t streams_index_mask;
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27 ngx_msec_t recv_timeout;
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28 ngx_msec_t keepalive_timeout;
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29 ngx_int_t headers_comp;
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30 } ngx_http_spdy_srv_conf_t;
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33 extern ngx_module_t ngx_http_spdy_module;
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36 #endif /* _NGX_HTTP_SPDY_MODULE_H_INCLUDED_ */