Mercurial > hg > nginx
annotate src/stream/ngx_stream_variables.h @ 7690:8253424d1aff
Added size check to ngx_http_alloc_large_header_buffer().
This ensures that copying won't write more than the buffer size
even if the buffer comes from hc->free and it is smaller than the large
client header buffer size in the virtual host configuration. This might
happen if size of large client header buffers is different in name-based
virtual hosts, similarly to the problem with number of buffers fixed
in 6926:e662cbf1b932.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Thu, 06 Aug 2020 05:02:22 +0300 |
| parents | 2a288909abc6 |
| children |
| rev | line source |
|---|---|
| 6607 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 * Copyright (C) Nginx, Inc. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #ifndef _NGX_STREAM_VARIABLES_H_INCLUDED_ | |
| 9 #define _NGX_STREAM_VARIABLES_H_INCLUDED_ | |
| 10 | |
| 11 | |
| 12 #include <ngx_config.h> | |
| 13 #include <ngx_core.h> | |
| 14 #include <ngx_stream.h> | |
| 15 | |
| 16 | |
| 17 typedef ngx_variable_value_t ngx_stream_variable_value_t; | |
| 18 | |
| 19 #define ngx_stream_variable(v) { sizeof(v) - 1, 1, 0, 0, 0, (u_char *) v } | |
| 20 | |
| 21 typedef struct ngx_stream_variable_s ngx_stream_variable_t; | |
| 22 | |
| 23 typedef void (*ngx_stream_set_variable_pt) (ngx_stream_session_t *s, | |
| 24 ngx_stream_variable_value_t *v, uintptr_t data); | |
| 25 typedef ngx_int_t (*ngx_stream_get_variable_pt) (ngx_stream_session_t *s, | |
| 26 ngx_stream_variable_value_t *v, uintptr_t data); | |
| 27 | |
| 28 | |
| 29 #define NGX_STREAM_VAR_CHANGEABLE 1 | |
| 30 #define NGX_STREAM_VAR_NOCACHEABLE 2 | |
| 31 #define NGX_STREAM_VAR_INDEXED 4 | |
| 32 #define NGX_STREAM_VAR_NOHASH 8 | |
|
6899
d2b2ff157da5
Variables: generic prefix variables.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6607
diff
changeset
|
33 #define NGX_STREAM_VAR_WEAK 16 |
|
d2b2ff157da5
Variables: generic prefix variables.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6607
diff
changeset
|
34 #define NGX_STREAM_VAR_PREFIX 32 |
| 6607 | 35 |
| 36 | |
| 37 struct ngx_stream_variable_s { | |
| 38 ngx_str_t name; /* must be first to build the hash */ | |
| 39 ngx_stream_set_variable_pt set_handler; | |
| 40 ngx_stream_get_variable_pt get_handler; | |
| 41 uintptr_t data; | |
| 42 ngx_uint_t flags; | |
| 43 ngx_uint_t index; | |
| 44 }; | |
| 45 | |
|
7077
2a288909abc6
Variables: macros for null variables.
Ruslan Ermilov <ru@nginx.com>
parents:
6899
diff
changeset
|
46 #define ngx_stream_null_variable { ngx_null_string, NULL, NULL, 0, 0, 0 } |
|
2a288909abc6
Variables: macros for null variables.
Ruslan Ermilov <ru@nginx.com>
parents:
6899
diff
changeset
|
47 |
| 6607 | 48 |
| 49 ngx_stream_variable_t *ngx_stream_add_variable(ngx_conf_t *cf, ngx_str_t *name, | |
| 50 ngx_uint_t flags); | |
| 51 ngx_int_t ngx_stream_get_variable_index(ngx_conf_t *cf, ngx_str_t *name); | |
| 52 ngx_stream_variable_value_t *ngx_stream_get_indexed_variable( | |
| 53 ngx_stream_session_t *s, ngx_uint_t index); | |
| 54 ngx_stream_variable_value_t *ngx_stream_get_flushed_variable( | |
| 55 ngx_stream_session_t *s, ngx_uint_t index); | |
| 56 | |
| 57 ngx_stream_variable_value_t *ngx_stream_get_variable(ngx_stream_session_t *s, | |
| 58 ngx_str_t *name, ngx_uint_t key); | |
| 59 | |
| 60 | |
| 61 #if (NGX_PCRE) | |
| 62 | |
| 63 typedef struct { | |
| 64 ngx_uint_t capture; | |
| 65 ngx_int_t index; | |
| 66 } ngx_stream_regex_variable_t; | |
| 67 | |
| 68 | |
| 69 typedef struct { | |
| 70 ngx_regex_t *regex; | |
| 71 ngx_uint_t ncaptures; | |
| 72 ngx_stream_regex_variable_t *variables; | |
| 73 ngx_uint_t nvariables; | |
| 74 ngx_str_t name; | |
| 75 } ngx_stream_regex_t; | |
| 76 | |
| 77 | |
| 78 typedef struct { | |
| 79 ngx_stream_regex_t *regex; | |
| 80 void *value; | |
| 81 } ngx_stream_map_regex_t; | |
| 82 | |
| 83 | |
| 84 ngx_stream_regex_t *ngx_stream_regex_compile(ngx_conf_t *cf, | |
| 85 ngx_regex_compile_t *rc); | |
| 86 ngx_int_t ngx_stream_regex_exec(ngx_stream_session_t *s, ngx_stream_regex_t *re, | |
| 87 ngx_str_t *str); | |
| 88 | |
| 89 #endif | |
| 90 | |
| 91 | |
| 92 typedef struct { | |
| 93 ngx_hash_combined_t hash; | |
| 94 #if (NGX_PCRE) | |
| 95 ngx_stream_map_regex_t *regex; | |
| 96 ngx_uint_t nregex; | |
| 97 #endif | |
| 98 } ngx_stream_map_t; | |
| 99 | |
| 100 | |
| 101 void *ngx_stream_map_find(ngx_stream_session_t *s, ngx_stream_map_t *map, | |
| 102 ngx_str_t *match); | |
| 103 | |
| 104 | |
| 105 ngx_int_t ngx_stream_variables_add_core_vars(ngx_conf_t *cf); | |
| 106 ngx_int_t ngx_stream_variables_init_vars(ngx_conf_t *cf); | |
| 107 | |
| 108 | |
| 109 extern ngx_stream_variable_value_t ngx_stream_variable_null_value; | |
| 110 extern ngx_stream_variable_value_t ngx_stream_variable_true_value; | |
| 111 | |
| 112 | |
| 113 #endif /* _NGX_STREAM_VARIABLES_H_INCLUDED_ */ |