Mercurial > hg > nginx
view src/http/modules/ngx_http_ssi_filter_module.h @ 7732:59e1c73fe02b
SSL: ssl_reject_handshake directive (ticket #195).
In some cases it might be needed to reject SSL handshake based on SNI
server name provided, for example, to make sure an invalid certificate
is not returned to clients trying to contact a name-based virtual server
without SSL configured. Previously, a "ssl_ciphers aNULL;" was used for
this. This workaround, however, is not compatible with TLSv1.3, in
particular, when using BoringSSL, where it is not possible to configure
TLSv1.3 ciphers at all.
With this change, the ssl_reject_handshake directive is introduced,
which instructs nginx to reject SSL handshakes with an "unrecognized_name"
alert in a particular server block.
For example, to reject handshake with names other than example.com,
one can use the following configuration:
server {
listen 443 ssl;
ssl_reject_handshake on;
}
server {
listen 443 ssl;
server_name example.com;
ssl_certificate example.com.crt;
ssl_certificate_key example.com.key;
}
The following configuration can be used to reject all SSL handshakes
without SNI server name provided:
server {
listen 443 ssl;
ssl_reject_handshake on;
}
server {
listen 443 ssl;
server_name ~^;
ssl_certificate example.crt;
ssl_certificate_key example.key;
}
Additionally, the ssl_reject_handshake directive makes configuring
certificates for the default server block optional. If no certificates
are configured in the default server for a given listening socket,
certificates must be defined in all non-default server blocks with
the listening socket in question.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Thu, 22 Oct 2020 18:02:28 +0300 |
| parents | d620f497c50f |
| children | 49e7db44b57c |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_HTTP_SSI_FILTER_H_INCLUDED_ #define _NGX_HTTP_SSI_FILTER_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> #define NGX_HTTP_SSI_MAX_PARAMS 16 #define NGX_HTTP_SSI_COMMAND_LEN 32 #define NGX_HTTP_SSI_PARAM_LEN 32 #define NGX_HTTP_SSI_PARAMS_N 4 #define NGX_HTTP_SSI_COND_IF 1 #define NGX_HTTP_SSI_COND_ELSE 2 #define NGX_HTTP_SSI_NO_ENCODING 0 #define NGX_HTTP_SSI_URL_ENCODING 1 #define NGX_HTTP_SSI_ENTITY_ENCODING 2 typedef struct { ngx_hash_t hash; ngx_hash_keys_arrays_t commands; } ngx_http_ssi_main_conf_t; typedef struct { ngx_buf_t *buf; u_char *pos; u_char *copy_start; u_char *copy_end; ngx_uint_t key; ngx_str_t command; ngx_array_t params; ngx_table_elt_t *param; ngx_table_elt_t params_array[NGX_HTTP_SSI_PARAMS_N]; ngx_chain_t *in; ngx_chain_t *out; ngx_chain_t **last_out; ngx_chain_t *busy; ngx_chain_t *free; ngx_uint_t state; ngx_uint_t saved_state; size_t saved; size_t looked; size_t value_len; ngx_list_t *variables; ngx_array_t *blocks; #if (NGX_PCRE) ngx_uint_t ncaptures; int *captures; u_char *captures_data; #endif unsigned conditional:2; unsigned encoding:2; unsigned block:1; unsigned output:1; unsigned output_chosen:1; ngx_http_request_t *wait; void *value_buf; ngx_str_t timefmt; ngx_str_t errmsg; } ngx_http_ssi_ctx_t; typedef ngx_int_t (*ngx_http_ssi_command_pt) (ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx, ngx_str_t **); typedef struct { ngx_str_t name; ngx_uint_t index; unsigned mandatory:1; unsigned multiple:1; } ngx_http_ssi_param_t; typedef struct { ngx_str_t name; ngx_http_ssi_command_pt handler; ngx_http_ssi_param_t *params; unsigned conditional:2; unsigned block:1; unsigned flush:1; } ngx_http_ssi_command_t; extern ngx_module_t ngx_http_ssi_filter_module; #endif /* _NGX_HTTP_SSI_FILTER_H_INCLUDED_ */