Mercurial > hg > nginx-quic
view src/stream/ngx_stream_script.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> |
---|---|
date | Mon, 28 Jun 2021 18:01:18 +0300 |
parents | 3ab8e1e2f0f7 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_STREAM_SCRIPT_H_INCLUDED_ #define _NGX_STREAM_SCRIPT_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_stream.h> typedef struct { u_char *ip; u_char *pos; ngx_stream_variable_value_t *sp; ngx_str_t buf; ngx_str_t line; unsigned flushed:1; unsigned skip:1; ngx_stream_session_t *session; } ngx_stream_script_engine_t; typedef struct { ngx_conf_t *cf; ngx_str_t *source; ngx_array_t **flushes; ngx_array_t **lengths; ngx_array_t **values; ngx_uint_t variables; ngx_uint_t ncaptures; ngx_uint_t size; void *main; unsigned complete_lengths:1; unsigned complete_values:1; unsigned zero:1; unsigned conf_prefix:1; unsigned root_prefix:1; } ngx_stream_script_compile_t; typedef struct { ngx_str_t value; ngx_uint_t *flushes; void *lengths; void *values; union { size_t size; } u; } ngx_stream_complex_value_t; typedef struct { ngx_conf_t *cf; ngx_str_t *value; ngx_stream_complex_value_t *complex_value; unsigned zero:1; unsigned conf_prefix:1; unsigned root_prefix:1; } ngx_stream_compile_complex_value_t; typedef void (*ngx_stream_script_code_pt) (ngx_stream_script_engine_t *e); typedef size_t (*ngx_stream_script_len_code_pt) (ngx_stream_script_engine_t *e); typedef struct { ngx_stream_script_code_pt code; uintptr_t len; } ngx_stream_script_copy_code_t; typedef struct { ngx_stream_script_code_pt code; uintptr_t index; } ngx_stream_script_var_code_t; typedef struct { ngx_stream_script_code_pt code; uintptr_t n; } ngx_stream_script_copy_capture_code_t; typedef struct { ngx_stream_script_code_pt code; uintptr_t conf_prefix; } ngx_stream_script_full_name_code_t; void ngx_stream_script_flush_complex_value(ngx_stream_session_t *s, ngx_stream_complex_value_t *val); ngx_int_t ngx_stream_complex_value(ngx_stream_session_t *s, ngx_stream_complex_value_t *val, ngx_str_t *value); size_t ngx_stream_complex_value_size(ngx_stream_session_t *s, ngx_stream_complex_value_t *val, size_t default_value); ngx_int_t ngx_stream_compile_complex_value( ngx_stream_compile_complex_value_t *ccv); char *ngx_stream_set_complex_value_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); char *ngx_stream_set_complex_value_zero_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); char *ngx_stream_set_complex_value_size_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); ngx_uint_t ngx_stream_script_variables_count(ngx_str_t *value); ngx_int_t ngx_stream_script_compile(ngx_stream_script_compile_t *sc); u_char *ngx_stream_script_run(ngx_stream_session_t *s, ngx_str_t *value, void *code_lengths, size_t reserved, void *code_values); void ngx_stream_script_flush_no_cacheable_variables(ngx_stream_session_t *s, ngx_array_t *indices); void *ngx_stream_script_add_code(ngx_array_t *codes, size_t size, void *code); size_t ngx_stream_script_copy_len_code(ngx_stream_script_engine_t *e); void ngx_stream_script_copy_code(ngx_stream_script_engine_t *e); size_t ngx_stream_script_copy_var_len_code(ngx_stream_script_engine_t *e); void ngx_stream_script_copy_var_code(ngx_stream_script_engine_t *e); size_t ngx_stream_script_copy_capture_len_code(ngx_stream_script_engine_t *e); void ngx_stream_script_copy_capture_code(ngx_stream_script_engine_t *e); #endif /* _NGX_STREAM_SCRIPT_H_INCLUDED_ */