Mercurial > hg > nginx
annotate src/stream/ngx_stream.h @ 6749:f88a145b093e stable-1.10
HTTP/2: the "421 Misdirected Request" response (closes #848).
Since 4fbef397c753 nginx rejects with the 400 error any attempts of
requesting different host over the same connection, if the relevant
virtual server requires verification of a client certificate.
While requesting hosts other than negotiated isn't something legal
in HTTP/1.x, the HTTP/2 specification explicitly permits such requests
for connection reuse and has introduced a special response code 421.
According to RFC 7540 Section 9.1.2 this code can be sent by a server
that is not configured to produce responses for the combination of
scheme and authority that are included in the request URI. And the
client may retry the request over a different connection.
Now this code is used for requests that aren't authorized in current
connection. After receiving the 421 response a client will be able
to open a new connection, provide the required certificate and retry
the request.
Unfortunately, not all clients currently are able to handle it well.
Notably Chrome just shows an error, while at least the latest version
of Firefox retries the request over a new connection.
| author | Valentin Bartenev <vbart@nginx.com> |
|---|---|
| date | Fri, 20 May 2016 18:41:17 +0300 |
| parents | 8f038068f4bc |
| children | 6f8254ae61b8 |
| rev | line source |
|---|---|
| 6115 | 1 |
| 2 /* | |
| 3 * Copyright (C) Roman Arutyunyan | |
| 4 * Copyright (C) Nginx, Inc. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #ifndef _NGX_STREAM_H_INCLUDED_ | |
| 9 #define _NGX_STREAM_H_INCLUDED_ | |
| 10 | |
| 11 | |
| 12 #include <ngx_config.h> | |
| 13 #include <ngx_core.h> | |
| 14 | |
| 15 #if (NGX_STREAM_SSL) | |
| 16 #include <ngx_stream_ssl_module.h> | |
| 17 #endif | |
| 18 | |
| 19 | |
| 20 typedef struct ngx_stream_session_s ngx_stream_session_t; | |
| 21 | |
| 22 | |
| 23 #include <ngx_stream_upstream.h> | |
| 24 #include <ngx_stream_upstream_round_robin.h> | |
| 25 | |
| 26 | |
| 27 typedef struct { | |
| 28 void **main_conf; | |
| 29 void **srv_conf; | |
| 30 } ngx_stream_conf_ctx_t; | |
| 31 | |
| 32 | |
| 33 typedef struct { | |
|
6170
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
34 union { |
|
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
35 struct sockaddr sockaddr; |
|
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
36 struct sockaddr_in sockaddr_in; |
|
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
37 #if (NGX_HAVE_INET6) |
|
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
38 struct sockaddr_in6 sockaddr_in6; |
|
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
39 #endif |
|
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
40 #if (NGX_HAVE_UNIX_DOMAIN) |
|
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
41 struct sockaddr_un sockaddr_un; |
|
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
42 #endif |
|
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
43 u_char sockaddr_data[NGX_SOCKADDRLEN]; |
|
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
44 } u; |
|
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
45 |
| 6115 | 46 socklen_t socklen; |
| 47 | |
| 48 /* server ctx */ | |
| 49 ngx_stream_conf_ctx_t *ctx; | |
| 50 | |
| 51 unsigned bind:1; | |
| 52 unsigned wildcard:1; | |
| 53 #if (NGX_STREAM_SSL) | |
| 54 unsigned ssl:1; | |
| 55 #endif | |
| 56 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) | |
| 57 unsigned ipv6only:1; | |
| 58 #endif | |
|
6153
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6129
diff
changeset
|
59 #if (NGX_HAVE_REUSEPORT) |
|
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6129
diff
changeset
|
60 unsigned reuseport:1; |
|
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6129
diff
changeset
|
61 #endif |
| 6115 | 62 unsigned so_keepalive:2; |
| 63 #if (NGX_HAVE_KEEPALIVE_TUNABLE) | |
| 64 int tcp_keepidle; | |
| 65 int tcp_keepintvl; | |
| 66 int tcp_keepcnt; | |
| 67 #endif | |
| 6172 | 68 int backlog; |
| 6436 | 69 int type; |
| 6115 | 70 } ngx_stream_listen_t; |
| 71 | |
| 72 | |
| 73 typedef struct { | |
| 74 ngx_stream_conf_ctx_t *ctx; | |
| 75 ngx_str_t addr_text; | |
| 76 #if (NGX_STREAM_SSL) | |
| 77 ngx_uint_t ssl; /* unsigned ssl:1; */ | |
| 78 #endif | |
| 79 } ngx_stream_addr_conf_t; | |
| 80 | |
| 81 typedef struct { | |
| 82 in_addr_t addr; | |
| 83 ngx_stream_addr_conf_t conf; | |
| 84 } ngx_stream_in_addr_t; | |
| 85 | |
| 86 | |
| 87 #if (NGX_HAVE_INET6) | |
| 88 | |
| 89 typedef struct { | |
| 90 struct in6_addr addr6; | |
| 91 ngx_stream_addr_conf_t conf; | |
| 92 } ngx_stream_in6_addr_t; | |
| 93 | |
| 94 #endif | |
| 95 | |
| 96 | |
| 97 typedef struct { | |
| 98 /* ngx_stream_in_addr_t or ngx_stream_in6_addr_t */ | |
| 99 void *addrs; | |
| 100 ngx_uint_t naddrs; | |
| 101 } ngx_stream_port_t; | |
| 102 | |
| 103 | |
| 104 typedef struct { | |
| 105 int family; | |
| 6436 | 106 int type; |
| 6115 | 107 in_port_t port; |
| 108 ngx_array_t addrs; /* array of ngx_stream_conf_addr_t */ | |
| 109 } ngx_stream_conf_port_t; | |
| 110 | |
| 111 | |
| 112 typedef struct { | |
|
6170
c13091e6292c
Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6169
diff
changeset
|
113 ngx_stream_listen_t opt; |
| 6115 | 114 } ngx_stream_conf_addr_t; |
| 115 | |
| 116 | |
| 6175 | 117 typedef ngx_int_t (*ngx_stream_access_pt)(ngx_stream_session_t *s); |
| 118 | |
| 119 | |
| 6115 | 120 typedef struct { |
| 121 ngx_array_t servers; /* ngx_stream_core_srv_conf_t */ | |
| 122 ngx_array_t listen; /* ngx_stream_listen_t */ | |
|
6197
0dcef374b8bb
Stream: connection limiting module.
Vladimir Homutov <vl@nginx.com>
parents:
6175
diff
changeset
|
123 ngx_stream_access_pt limit_conn_handler; |
| 6175 | 124 ngx_stream_access_pt access_handler; |
| 6115 | 125 } ngx_stream_core_main_conf_t; |
| 126 | |
| 127 | |
| 128 typedef void (*ngx_stream_handler_pt)(ngx_stream_session_t *s); | |
| 129 | |
| 130 | |
| 131 typedef struct { | |
| 132 ngx_stream_handler_pt handler; | |
| 133 ngx_stream_conf_ctx_t *ctx; | |
| 134 u_char *file_name; | |
| 135 ngx_int_t line; | |
| 136 ngx_log_t *error_log; | |
|
6221
7565e056fad6
Stream: the "tcp_nodelay" directive.
Vladimir Homutov <vl@nginx.com>
parents:
6197
diff
changeset
|
137 ngx_flag_t tcp_nodelay; |
| 6115 | 138 } ngx_stream_core_srv_conf_t; |
| 139 | |
| 140 | |
| 141 struct ngx_stream_session_s { | |
| 142 uint32_t signature; /* "STRM" */ | |
| 143 | |
| 144 ngx_connection_t *connection; | |
| 145 | |
| 146 off_t received; | |
| 147 | |
| 148 ngx_log_handler_pt log_handler; | |
| 149 | |
| 150 void **ctx; | |
| 151 void **main_conf; | |
| 152 void **srv_conf; | |
| 153 | |
| 154 ngx_stream_upstream_t *upstream; | |
| 155 }; | |
| 156 | |
| 157 | |
| 158 typedef struct { | |
|
6174
68c106e6fa0a
Stream: added postconfiguration method to stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
6172
diff
changeset
|
159 ngx_int_t (*postconfiguration)(ngx_conf_t *cf); |
|
68c106e6fa0a
Stream: added postconfiguration method to stream modules.
Vladimir Homutov <vl@nginx.com>
parents:
6172
diff
changeset
|
160 |
| 6115 | 161 void *(*create_main_conf)(ngx_conf_t *cf); |
| 162 char *(*init_main_conf)(ngx_conf_t *cf, void *conf); | |
| 163 | |
| 164 void *(*create_srv_conf)(ngx_conf_t *cf); | |
| 165 char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev, | |
| 166 void *conf); | |
| 167 } ngx_stream_module_t; | |
| 168 | |
| 169 | |
| 170 #define NGX_STREAM_MODULE 0x4d525453 /* "STRM" */ | |
| 171 | |
| 172 #define NGX_STREAM_MAIN_CONF 0x02000000 | |
| 173 #define NGX_STREAM_SRV_CONF 0x04000000 | |
| 174 #define NGX_STREAM_UPS_CONF 0x08000000 | |
| 175 | |
| 176 | |
| 177 #define NGX_STREAM_MAIN_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, main_conf) | |
| 178 #define NGX_STREAM_SRV_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, srv_conf) | |
| 179 | |
| 180 | |
| 181 #define ngx_stream_get_module_ctx(s, module) (s)->ctx[module.ctx_index] | |
| 182 #define ngx_stream_set_ctx(s, c, module) s->ctx[module.ctx_index] = c; | |
| 183 #define ngx_stream_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL; | |
| 184 | |
| 185 | |
| 186 #define ngx_stream_get_module_main_conf(s, module) \ | |
| 187 (s)->main_conf[module.ctx_index] | |
| 188 #define ngx_stream_get_module_srv_conf(s, module) \ | |
| 189 (s)->srv_conf[module.ctx_index] | |
| 190 | |
| 191 #define ngx_stream_conf_get_module_main_conf(cf, module) \ | |
| 192 ((ngx_stream_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index] | |
| 193 #define ngx_stream_conf_get_module_srv_conf(cf, module) \ | |
| 194 ((ngx_stream_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index] | |
| 195 | |
| 196 #define ngx_stream_cycle_get_module_main_conf(cycle, module) \ | |
| 197 (cycle->conf_ctx[ngx_stream_module.index] ? \ | |
| 198 ((ngx_stream_conf_ctx_t *) cycle->conf_ctx[ngx_stream_module.index]) \ | |
| 199 ->main_conf[module.ctx_index]: \ | |
| 200 NULL) | |
| 201 | |
| 202 | |
| 203 void ngx_stream_init_connection(ngx_connection_t *c); | |
| 204 void ngx_stream_close_connection(ngx_connection_t *c); | |
| 205 | |
| 206 | |
| 207 extern ngx_module_t ngx_stream_module; | |
| 208 extern ngx_uint_t ngx_stream_max_module; | |
| 209 extern ngx_module_t ngx_stream_core_module; | |
| 210 | |
| 211 | |
| 212 #endif /* _NGX_STREAM_H_INCLUDED_ */ |