Mercurial > hg > nginx-quic
annotate src/core/ngx_radix_tree.h @ 8531:41f4bd4c51f1
Disabled control characters and space in header names.
Control characters (0x00-0x1f, 0x7f), space, and colon were never allowed in
header names. The only somewhat valid use is header continuation which nginx
never supported and which is explicitly obsolete by RFC 7230.
Previously, such headers were considered invalid and were ignored by default
(as per ignore_invalid_headers directive). With this change, such headers
are unconditionally rejected.
It is expected to make nginx more resilient to various attacks, in particular,
with ignore_invalid_headers switched off (which is inherently unsecure, though
nevertheless sometimes used in the wild).
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 28 Jun 2021 18:01:18 +0300 |
parents | 3be3de31d7dd |
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rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #ifndef _NGX_RADIX_TREE_H_INCLUDED_ |
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9 #define _NGX_RADIX_TREE_H_INCLUDED_ |
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10 |
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11 |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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14 |
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15 |
485 | 16 #define NGX_RADIX_NO_VALUE (uintptr_t) -1 |
17 | |
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18 typedef struct ngx_radix_node_s ngx_radix_node_t; |
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19 |
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20 struct ngx_radix_node_s { |
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21 ngx_radix_node_t *right; |
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22 ngx_radix_node_t *left; |
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23 ngx_radix_node_t *parent; |
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24 uintptr_t value; |
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25 }; |
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26 |
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27 |
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28 typedef struct { |
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29 ngx_radix_node_t *root; |
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30 ngx_pool_t *pool; |
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31 ngx_radix_node_t *free; |
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32 char *start; |
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33 size_t size; |
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34 } ngx_radix_tree_t; |
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35 |
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36 |
487 | 37 ngx_radix_tree_t *ngx_radix_tree_create(ngx_pool_t *pool, |
489 | 38 ngx_int_t preallocate); |
4992 | 39 |
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40 ngx_int_t ngx_radix32tree_insert(ngx_radix_tree_t *tree, |
487 | 41 uint32_t key, uint32_t mask, uintptr_t value); |
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42 ngx_int_t ngx_radix32tree_delete(ngx_radix_tree_t *tree, |
487 | 43 uint32_t key, uint32_t mask); |
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44 uintptr_t ngx_radix32tree_find(ngx_radix_tree_t *tree, uint32_t key); |
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45 |
4992 | 46 #if (NGX_HAVE_INET6) |
47 ngx_int_t ngx_radix128tree_insert(ngx_radix_tree_t *tree, | |
48 u_char *key, u_char *mask, uintptr_t value); | |
49 ngx_int_t ngx_radix128tree_delete(ngx_radix_tree_t *tree, | |
50 u_char *key, u_char *mask); | |
51 uintptr_t ngx_radix128tree_find(ngx_radix_tree_t *tree, u_char *key); | |
52 #endif | |
53 | |
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54 |
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55 #endif /* _NGX_RADIX_TREE_H_INCLUDED_ */ |