Mercurial > hg > nginx
annotate src/mail/ngx_mail_ssl_module.c @ 4400:a0505851e70c
Added support for TLSv1.1, TLSv1.2 in ssl_protocols directive.
Support for TLSv1.1 and TLSv1.2 protocols was introduced in OpenSSL 1.0.1
(-beta1 was recently released). This change makes it possible to disable
these protocols and/or enable them without other protocols.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 11 Jan 2012 11:15:00 +0000 |
parents | 7de74ed694c8 |
children | d620f497c50f |
rev | line source |
---|---|
539 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
1136 | 9 #include <ngx_mail.h> |
539 | 10 |
11 | |
3960 | 12 #define NGX_DEFAULT_CIPHERS "HIGH:!aNULL:!MD5" |
13 #define NGX_DEFAULT_ECDH_CURVE "prime256v1" | |
539 | 14 |
15 | |
1136 | 16 static void *ngx_mail_ssl_create_conf(ngx_conf_t *cf); |
17 static char *ngx_mail_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child); | |
2224 | 18 |
19 static char *ngx_mail_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, | |
20 void *conf); | |
21 static char *ngx_mail_ssl_starttls(ngx_conf_t *cf, ngx_command_t *cmd, | |
22 void *conf); | |
1136 | 23 static char *ngx_mail_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, |
976 | 24 void *conf); |
539 | 25 |
26 | |
583 | 27 static ngx_conf_enum_t ngx_http_starttls_state[] = { |
1136 | 28 { ngx_string("off"), NGX_MAIL_STARTTLS_OFF }, |
29 { ngx_string("on"), NGX_MAIL_STARTTLS_ON }, | |
30 { ngx_string("only"), NGX_MAIL_STARTTLS_ONLY }, | |
583 | 31 { ngx_null_string, 0 } |
32 }; | |
33 | |
34 | |
35 | |
1136 | 36 static ngx_conf_bitmask_t ngx_mail_ssl_protocols[] = { |
547 | 37 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, |
38 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
39 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
4400
a0505851e70c
Added support for TLSv1.1, TLSv1.2 in ssl_protocols directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4153
diff
changeset
|
40 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, |
a0505851e70c
Added support for TLSv1.1, TLSv1.2 in ssl_protocols directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4153
diff
changeset
|
41 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, |
547 | 42 { ngx_null_string, 0 } |
43 }; | |
44 | |
45 | |
1136 | 46 static ngx_command_t ngx_mail_ssl_commands[] = { |
539 | 47 |
48 { ngx_string("ssl"), | |
1136 | 49 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
2224 | 50 ngx_mail_ssl_enable, |
1136 | 51 NGX_MAIL_SRV_CONF_OFFSET, |
52 offsetof(ngx_mail_ssl_conf_t, enable), | |
539 | 53 NULL }, |
54 | |
583 | 55 { ngx_string("starttls"), |
1136 | 56 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
2224 | 57 ngx_mail_ssl_starttls, |
1136 | 58 NGX_MAIL_SRV_CONF_OFFSET, |
59 offsetof(ngx_mail_ssl_conf_t, starttls), | |
583 | 60 ngx_http_starttls_state }, |
61 | |
539 | 62 { ngx_string("ssl_certificate"), |
1136 | 63 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
539 | 64 ngx_conf_set_str_slot, |
1136 | 65 NGX_MAIL_SRV_CONF_OFFSET, |
66 offsetof(ngx_mail_ssl_conf_t, certificate), | |
539 | 67 NULL }, |
68 | |
69 { ngx_string("ssl_certificate_key"), | |
1136 | 70 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
539 | 71 ngx_conf_set_str_slot, |
1136 | 72 NGX_MAIL_SRV_CONF_OFFSET, |
73 offsetof(ngx_mail_ssl_conf_t, certificate_key), | |
539 | 74 NULL }, |
75 | |
2044 | 76 { ngx_string("ssl_dhparam"), |
77 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, | |
78 ngx_conf_set_str_slot, | |
79 NGX_MAIL_SRV_CONF_OFFSET, | |
80 offsetof(ngx_mail_ssl_conf_t, dhparam), | |
81 NULL }, | |
82 | |
3960 | 83 { ngx_string("ssl_ecdh_curve"), |
84 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, | |
85 ngx_conf_set_str_slot, | |
86 NGX_MAIL_SRV_CONF_OFFSET, | |
87 offsetof(ngx_mail_ssl_conf_t, ecdh_curve), | |
88 NULL }, | |
89 | |
547 | 90 { ngx_string("ssl_protocols"), |
1136 | 91 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, |
547 | 92 ngx_conf_set_bitmask_slot, |
1136 | 93 NGX_MAIL_SRV_CONF_OFFSET, |
94 offsetof(ngx_mail_ssl_conf_t, protocols), | |
95 &ngx_mail_ssl_protocols }, | |
547 | 96 |
539 | 97 { ngx_string("ssl_ciphers"), |
1136 | 98 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
539 | 99 ngx_conf_set_str_slot, |
1136 | 100 NGX_MAIL_SRV_CONF_OFFSET, |
101 offsetof(ngx_mail_ssl_conf_t, ciphers), | |
539 | 102 NULL }, |
103 | |
547 | 104 { ngx_string("ssl_prefer_server_ciphers"), |
1136 | 105 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
547 | 106 ngx_conf_set_flag_slot, |
1136 | 107 NGX_MAIL_SRV_CONF_OFFSET, |
108 offsetof(ngx_mail_ssl_conf_t, prefer_server_ciphers), | |
547 | 109 NULL }, |
563 | 110 |
976 | 111 { ngx_string("ssl_session_cache"), |
1136 | 112 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE12, |
113 ngx_mail_ssl_session_cache, | |
114 NGX_MAIL_SRV_CONF_OFFSET, | |
976 | 115 0, |
116 NULL }, | |
117 | |
573 | 118 { ngx_string("ssl_session_timeout"), |
1136 | 119 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
573 | 120 ngx_conf_set_sec_slot, |
1136 | 121 NGX_MAIL_SRV_CONF_OFFSET, |
122 offsetof(ngx_mail_ssl_conf_t, session_timeout), | |
573 | 123 NULL }, |
547 | 124 |
539 | 125 ngx_null_command |
126 }; | |
127 | |
128 | |
1136 | 129 static ngx_mail_module_t ngx_mail_ssl_module_ctx = { |
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1136
diff
changeset
|
130 NULL, /* protocol */ |
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1136
diff
changeset
|
131 |
539 | 132 NULL, /* create main configuration */ |
133 NULL, /* init main configuration */ | |
134 | |
1136 | 135 ngx_mail_ssl_create_conf, /* create server configuration */ |
136 ngx_mail_ssl_merge_conf /* merge server configuration */ | |
539 | 137 }; |
138 | |
139 | |
1136 | 140 ngx_module_t ngx_mail_ssl_module = { |
539 | 141 NGX_MODULE_V1, |
1136 | 142 &ngx_mail_ssl_module_ctx, /* module context */ |
143 ngx_mail_ssl_commands, /* module directives */ | |
144 NGX_MAIL_MODULE, /* module type */ | |
541 | 145 NULL, /* init master */ |
539 | 146 NULL, /* init module */ |
541 | 147 NULL, /* init process */ |
148 NULL, /* init thread */ | |
149 NULL, /* exit thread */ | |
150 NULL, /* exit process */ | |
151 NULL, /* exit master */ | |
152 NGX_MODULE_V1_PADDING | |
539 | 153 }; |
154 | |
155 | |
1136 | 156 static ngx_str_t ngx_mail_ssl_sess_id_ctx = ngx_string("MAIL"); |
543 | 157 |
158 | |
539 | 159 static void * |
1136 | 160 ngx_mail_ssl_create_conf(ngx_conf_t *cf) |
577 | 161 { |
1136 | 162 ngx_mail_ssl_conf_t *scf; |
577 | 163 |
1136 | 164 scf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_ssl_conf_t)); |
539 | 165 if (scf == NULL) { |
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
2759
diff
changeset
|
166 return NULL; |
539 | 167 } |
168 | |
169 /* | |
577 | 170 * set by ngx_pcalloc(): |
539 | 171 * |
547 | 172 * scf->protocols = 0; |
2044 | 173 * scf->certificate = { 0, NULL }; |
174 * scf->certificate_key = { 0, NULL }; | |
175 * scf->dhparam = { 0, NULL }; | |
3960 | 176 * scf->ecdh_curve = { 0, NULL }; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3196
diff
changeset
|
177 * scf->ciphers = { 0, NULL }; |
976 | 178 * scf->shm_zone = NULL; |
539 | 179 */ |
180 | |
181 scf->enable = NGX_CONF_UNSET; | |
2759 | 182 scf->starttls = NGX_CONF_UNSET_UINT; |
976 | 183 scf->prefer_server_ciphers = NGX_CONF_UNSET; |
184 scf->builtin_session_cache = NGX_CONF_UNSET; | |
573 | 185 scf->session_timeout = NGX_CONF_UNSET; |
539 | 186 |
187 return scf; | |
188 } | |
189 | |
190 | |
191 static char * | |
1136 | 192 ngx_mail_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child) |
539 | 193 { |
1136 | 194 ngx_mail_ssl_conf_t *prev = parent; |
195 ngx_mail_ssl_conf_t *conf = child; | |
539 | 196 |
2224 | 197 char *mode; |
563 | 198 ngx_pool_cleanup_t *cln; |
199 | |
539 | 200 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
2224 | 201 ngx_conf_merge_uint_value(conf->starttls, prev->starttls, |
202 NGX_MAIL_STARTTLS_OFF); | |
539 | 203 |
573 | 204 ngx_conf_merge_value(conf->session_timeout, |
205 prev->session_timeout, 300); | |
206 | |
547 | 207 ngx_conf_merge_value(conf->prefer_server_ciphers, |
208 prev->prefer_server_ciphers, 0); | |
209 | |
210 ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols, | |
4400
a0505851e70c
Added support for TLSv1.1, TLSv1.2 in ssl_protocols directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4153
diff
changeset
|
211 (NGX_CONF_BITMASK_SET|NGX_SSL_SSLv3|NGX_SSL_TLSv1 |
a0505851e70c
Added support for TLSv1.1, TLSv1.2 in ssl_protocols directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4153
diff
changeset
|
212 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); |
547 | 213 |
2224 | 214 ngx_conf_merge_str_value(conf->certificate, prev->certificate, ""); |
215 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key, ""); | |
539 | 216 |
2044 | 217 ngx_conf_merge_str_value(conf->dhparam, prev->dhparam, ""); |
218 | |
3960 | 219 ngx_conf_merge_str_value(conf->ecdh_curve, prev->ecdh_curve, |
220 NGX_DEFAULT_ECDH_CURVE); | |
221 | |
2124 | 222 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFAULT_CIPHERS); |
539 | 223 |
224 | |
547 | 225 conf->ssl.log = cf->log; |
539 | 226 |
2224 | 227 if (conf->enable) { |
228 mode = "ssl"; | |
229 | |
230 } else if (conf->starttls != NGX_MAIL_STARTTLS_OFF) { | |
231 mode = "starttls"; | |
232 | |
233 } else { | |
234 mode = ""; | |
235 } | |
236 | |
237 if (*mode) { | |
238 | |
239 if (conf->certificate.len == 0) { | |
240 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
241 "no \"ssl_certificate\" is defined for " | |
242 "the \"%s\" directive in %s:%ui", | |
243 mode, conf->file, conf->line); | |
244 return NGX_CONF_ERROR; | |
245 } | |
246 | |
247 if (conf->certificate_key.len == 0) { | |
248 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
249 "no \"ssl_certificate_key\" is defined for " | |
250 "the \"%s\" directive in %s:%ui", | |
251 mode, conf->file, conf->line); | |
252 return NGX_CONF_ERROR; | |
253 } | |
254 | |
255 } else { | |
256 | |
257 if (conf->certificate.len == 0) { | |
258 return NGX_CONF_OK; | |
259 } | |
260 | |
261 if (conf->certificate_key.len == 0) { | |
262 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
263 "no \"ssl_certificate_key\" is defined " | |
264 "for certificate \"%V\"", | |
265 &conf->certificate); | |
266 return NGX_CONF_ERROR; | |
267 } | |
268 } | |
269 | |
969 | 270 if (ngx_ssl_create(&conf->ssl, conf->protocols, NULL) != NGX_OK) { |
539 | 271 return NGX_CONF_ERROR; |
272 } | |
273 | |
563 | 274 cln = ngx_pool_cleanup_add(cf->pool, 0); |
275 if (cln == NULL) { | |
539 | 276 return NGX_CONF_ERROR; |
277 } | |
278 | |
563 | 279 cln->handler = ngx_ssl_cleanup_ctx; |
280 cln->data = &conf->ssl; | |
281 | |
282 if (ngx_ssl_certificate(cf, &conf->ssl, &conf->certificate, | |
283 &conf->certificate_key) | |
284 != NGX_OK) | |
547 | 285 { |
286 return NGX_CONF_ERROR; | |
287 } | |
539 | 288 |
289 if (conf->ciphers.len) { | |
547 | 290 if (SSL_CTX_set_cipher_list(conf->ssl.ctx, |
563 | 291 (const char *) conf->ciphers.data) |
292 == 0) | |
539 | 293 { |
294 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
295 "SSL_CTX_set_cipher_list(\"%V\") failed", | |
296 &conf->ciphers); | |
297 } | |
298 } | |
299 | |
563 | 300 if (conf->prefer_server_ciphers) { |
301 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE); | |
302 } | |
303 | |
3959
b1f48fa31e6c
MSIE export versions are rare now, so RSA 512 key is generated on demand
Igor Sysoev <igor@sysoev.ru>
parents:
3938
diff
changeset
|
304 SSL_CTX_set_tmp_rsa_callback(conf->ssl.ctx, ngx_ssl_rsa512_key_callback); |
539 | 305 |
2044 | 306 if (ngx_ssl_dhparam(cf, &conf->ssl, &conf->dhparam) != NGX_OK) { |
307 return NGX_CONF_ERROR; | |
308 } | |
309 | |
976 | 310 ngx_conf_merge_value(conf->builtin_session_cache, |
2032 | 311 prev->builtin_session_cache, NGX_SSL_NONE_SCACHE); |
976 | 312 |
313 if (conf->shm_zone == NULL) { | |
314 conf->shm_zone = prev->shm_zone; | |
315 } | |
539 | 316 |
1136 | 317 if (ngx_ssl_session_cache(&conf->ssl, &ngx_mail_ssl_sess_id_ctx, |
976 | 318 conf->builtin_session_cache, |
319 conf->shm_zone, conf->session_timeout) | |
320 != NGX_OK) | |
321 { | |
322 return NGX_CONF_ERROR; | |
323 } | |
573 | 324 |
539 | 325 return NGX_CONF_OK; |
326 } | |
563 | 327 |
577 | 328 |
976 | 329 static char * |
2224 | 330 ngx_mail_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
331 { | |
332 ngx_mail_ssl_conf_t *scf = conf; | |
333 | |
334 char *rv; | |
335 | |
336 rv = ngx_conf_set_flag_slot(cf, cmd, conf); | |
337 | |
338 if (rv != NGX_CONF_OK) { | |
339 return rv; | |
340 } | |
341 | |
342 if (scf->enable && (ngx_int_t) scf->starttls > NGX_MAIL_STARTTLS_OFF) { | |
343 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
344 "\"starttls\" directive conflicts with \"ssl on\""); | |
345 return NGX_CONF_ERROR; | |
346 } | |
347 | |
348 scf->file = cf->conf_file->file.name.data; | |
349 scf->line = cf->conf_file->line; | |
350 | |
351 return NGX_CONF_OK; | |
352 } | |
353 | |
354 | |
355 static char * | |
356 ngx_mail_ssl_starttls(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
357 { | |
358 ngx_mail_ssl_conf_t *scf = conf; | |
359 | |
360 char *rv; | |
361 | |
362 rv = ngx_conf_set_enum_slot(cf, cmd, conf); | |
363 | |
364 if (rv != NGX_CONF_OK) { | |
365 return rv; | |
366 } | |
367 | |
368 if (scf->enable == 1 && (ngx_int_t) scf->starttls > NGX_MAIL_STARTTLS_OFF) { | |
369 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
370 "\"ssl\" directive conflicts with \"starttls\""); | |
371 return NGX_CONF_ERROR; | |
372 } | |
373 | |
374 scf->file = cf->conf_file->file.name.data; | |
375 scf->line = cf->conf_file->line; | |
376 | |
377 return NGX_CONF_OK; | |
378 } | |
379 | |
380 | |
381 static char * | |
1136 | 382 ngx_mail_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
976 | 383 { |
1136 | 384 ngx_mail_ssl_conf_t *scf = conf; |
976 | 385 |
386 size_t len; | |
387 ngx_str_t *value, name, size; | |
388 ngx_int_t n; | |
389 ngx_uint_t i, j; | |
390 | |
391 value = cf->args->elts; | |
392 | |
393 for (i = 1; i < cf->args->nelts; i++) { | |
394 | |
1778 | 395 if (ngx_strcmp(value[i].data, "off") == 0) { |
396 scf->builtin_session_cache = NGX_SSL_NO_SCACHE; | |
397 continue; | |
398 } | |
399 | |
2032 | 400 if (ngx_strcmp(value[i].data, "none") == 0) { |
401 scf->builtin_session_cache = NGX_SSL_NONE_SCACHE; | |
402 continue; | |
403 } | |
404 | |
976 | 405 if (ngx_strcmp(value[i].data, "builtin") == 0) { |
406 scf->builtin_session_cache = NGX_SSL_DFLT_BUILTIN_SCACHE; | |
407 continue; | |
408 } | |
409 | |
410 if (value[i].len > sizeof("builtin:") - 1 | |
411 && ngx_strncmp(value[i].data, "builtin:", sizeof("builtin:") - 1) | |
412 == 0) | |
413 { | |
414 n = ngx_atoi(value[i].data + sizeof("builtin:") - 1, | |
415 value[i].len - (sizeof("builtin:") - 1)); | |
416 | |
417 if (n == NGX_ERROR) { | |
418 goto invalid; | |
419 } | |
420 | |
421 scf->builtin_session_cache = n; | |
422 | |
423 continue; | |
424 } | |
425 | |
426 if (value[i].len > sizeof("shared:") - 1 | |
427 && ngx_strncmp(value[i].data, "shared:", sizeof("shared:") - 1) | |
428 == 0) | |
429 { | |
430 len = 0; | |
431 | |
432 for (j = sizeof("shared:") - 1; j < value[i].len; j++) { | |
433 if (value[i].data[j] == ':') { | |
434 break; | |
435 } | |
436 | |
437 len++; | |
438 } | |
439 | |
440 if (len == 0) { | |
441 goto invalid; | |
442 } | |
443 | |
444 name.len = len; | |
445 name.data = value[i].data + sizeof("shared:") - 1; | |
446 | |
447 size.len = value[i].len - j - 1; | |
448 size.data = name.data + len + 1; | |
449 | |
450 n = ngx_parse_size(&size); | |
451 | |
452 if (n == NGX_ERROR) { | |
453 goto invalid; | |
454 } | |
455 | |
456 if (n < (ngx_int_t) (8 * ngx_pagesize)) { | |
457 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
458 "session cache \"%V\" is too small", | |
459 &value[i]); | |
460 | |
461 return NGX_CONF_ERROR; | |
462 } | |
463 | |
464 scf->shm_zone = ngx_shared_memory_add(cf, &name, n, | |
1136 | 465 &ngx_mail_ssl_module); |
976 | 466 if (scf->shm_zone == NULL) { |
467 return NGX_CONF_ERROR; | |
468 } | |
469 | |
4153
7de74ed694c8
Fix for "ssl_session_cache builtin" (broken since 1.1.1, r3993).
Maxim Dounin <mdounin@mdounin.ru>
parents:
3992
diff
changeset
|
470 scf->shm_zone->init = ngx_ssl_session_cache_init; |
7de74ed694c8
Fix for "ssl_session_cache builtin" (broken since 1.1.1, r3993).
Maxim Dounin <mdounin@mdounin.ru>
parents:
3992
diff
changeset
|
471 |
976 | 472 continue; |
473 } | |
474 | |
475 goto invalid; | |
476 } | |
477 | |
478 if (scf->shm_zone && scf->builtin_session_cache == NGX_CONF_UNSET) { | |
479 scf->builtin_session_cache = NGX_SSL_NO_BUILTIN_SCACHE; | |
480 } | |
481 | |
482 return NGX_CONF_OK; | |
483 | |
484 invalid: | |
485 | |
486 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
487 "invalid session cache \"%V\"", &value[i]); | |
488 | |
489 return NGX_CONF_ERROR; | |
490 } |