Mercurial > hg > nginx
annotate src/mail/ngx_mail_ssl_module.c @ 3516:dd1570b6f237
ngx_str_set() and ngx_str_null()
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 14 May 2010 09:56:37 +0000 |
| parents | b7e68ee09e0c |
| children | 1e90599af73b |
| 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 | |
|
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b7e68ee09e0c
use only strong ciphers by default
Igor Sysoev <igor@sysoev.ru>
parents:
3190
diff
changeset
|
12 #define NGX_DEFAULT_CIPHERS "HIGH:!ADH:!MD5" |
| 539 | 13 |
| 14 | |
| 1136 | 15 static void *ngx_mail_ssl_create_conf(ngx_conf_t *cf); |
| 16 static char *ngx_mail_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child); | |
| 2224 | 17 |
| 18 static char *ngx_mail_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 19 void *conf); | |
| 20 static char *ngx_mail_ssl_starttls(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 21 void *conf); | |
| 1136 | 22 static char *ngx_mail_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, |
| 976 | 23 void *conf); |
| 539 | 24 |
| 25 | |
| 583 | 26 static ngx_conf_enum_t ngx_http_starttls_state[] = { |
| 1136 | 27 { ngx_string("off"), NGX_MAIL_STARTTLS_OFF }, |
| 28 { ngx_string("on"), NGX_MAIL_STARTTLS_ON }, | |
| 29 { ngx_string("only"), NGX_MAIL_STARTTLS_ONLY }, | |
| 583 | 30 { ngx_null_string, 0 } |
| 31 }; | |
| 32 | |
| 33 | |
| 34 | |
| 1136 | 35 static ngx_conf_bitmask_t ngx_mail_ssl_protocols[] = { |
| 547 | 36 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, |
| 37 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 38 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 39 { ngx_null_string, 0 } | |
| 40 }; | |
| 41 | |
| 42 | |
| 1136 | 43 static ngx_command_t ngx_mail_ssl_commands[] = { |
| 539 | 44 |
| 45 { ngx_string("ssl"), | |
| 1136 | 46 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
| 2224 | 47 ngx_mail_ssl_enable, |
| 1136 | 48 NGX_MAIL_SRV_CONF_OFFSET, |
| 49 offsetof(ngx_mail_ssl_conf_t, enable), | |
| 539 | 50 NULL }, |
| 51 | |
| 583 | 52 { ngx_string("starttls"), |
| 1136 | 53 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
| 2224 | 54 ngx_mail_ssl_starttls, |
| 1136 | 55 NGX_MAIL_SRV_CONF_OFFSET, |
| 56 offsetof(ngx_mail_ssl_conf_t, starttls), | |
| 583 | 57 ngx_http_starttls_state }, |
| 58 | |
| 539 | 59 { ngx_string("ssl_certificate"), |
| 1136 | 60 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
| 539 | 61 ngx_conf_set_str_slot, |
| 1136 | 62 NGX_MAIL_SRV_CONF_OFFSET, |
| 63 offsetof(ngx_mail_ssl_conf_t, certificate), | |
| 539 | 64 NULL }, |
| 65 | |
| 66 { ngx_string("ssl_certificate_key"), | |
| 1136 | 67 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
| 539 | 68 ngx_conf_set_str_slot, |
| 1136 | 69 NGX_MAIL_SRV_CONF_OFFSET, |
| 70 offsetof(ngx_mail_ssl_conf_t, certificate_key), | |
| 539 | 71 NULL }, |
| 72 | |
| 2044 | 73 { ngx_string("ssl_dhparam"), |
| 74 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, | |
| 75 ngx_conf_set_str_slot, | |
| 76 NGX_MAIL_SRV_CONF_OFFSET, | |
| 77 offsetof(ngx_mail_ssl_conf_t, dhparam), | |
| 78 NULL }, | |
| 79 | |
| 547 | 80 { ngx_string("ssl_protocols"), |
| 1136 | 81 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, |
| 547 | 82 ngx_conf_set_bitmask_slot, |
| 1136 | 83 NGX_MAIL_SRV_CONF_OFFSET, |
| 84 offsetof(ngx_mail_ssl_conf_t, protocols), | |
| 85 &ngx_mail_ssl_protocols }, | |
| 547 | 86 |
| 539 | 87 { ngx_string("ssl_ciphers"), |
| 1136 | 88 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
| 539 | 89 ngx_conf_set_str_slot, |
| 1136 | 90 NGX_MAIL_SRV_CONF_OFFSET, |
| 91 offsetof(ngx_mail_ssl_conf_t, ciphers), | |
| 539 | 92 NULL }, |
| 93 | |
| 547 | 94 { ngx_string("ssl_prefer_server_ciphers"), |
| 1136 | 95 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
| 547 | 96 ngx_conf_set_flag_slot, |
| 1136 | 97 NGX_MAIL_SRV_CONF_OFFSET, |
| 98 offsetof(ngx_mail_ssl_conf_t, prefer_server_ciphers), | |
| 547 | 99 NULL }, |
| 563 | 100 |
| 976 | 101 { ngx_string("ssl_session_cache"), |
| 1136 | 102 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE12, |
| 103 ngx_mail_ssl_session_cache, | |
| 104 NGX_MAIL_SRV_CONF_OFFSET, | |
| 976 | 105 0, |
| 106 NULL }, | |
| 107 | |
| 573 | 108 { ngx_string("ssl_session_timeout"), |
| 1136 | 109 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
| 573 | 110 ngx_conf_set_sec_slot, |
| 1136 | 111 NGX_MAIL_SRV_CONF_OFFSET, |
| 112 offsetof(ngx_mail_ssl_conf_t, session_timeout), | |
| 573 | 113 NULL }, |
| 547 | 114 |
| 539 | 115 ngx_null_command |
| 116 }; | |
| 117 | |
| 118 | |
| 1136 | 119 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
|
120 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
|
121 |
| 539 | 122 NULL, /* create main configuration */ |
| 123 NULL, /* init main configuration */ | |
| 124 | |
| 1136 | 125 ngx_mail_ssl_create_conf, /* create server configuration */ |
| 126 ngx_mail_ssl_merge_conf /* merge server configuration */ | |
| 539 | 127 }; |
| 128 | |
| 129 | |
| 1136 | 130 ngx_module_t ngx_mail_ssl_module = { |
| 539 | 131 NGX_MODULE_V1, |
| 1136 | 132 &ngx_mail_ssl_module_ctx, /* module context */ |
| 133 ngx_mail_ssl_commands, /* module directives */ | |
| 134 NGX_MAIL_MODULE, /* module type */ | |
| 541 | 135 NULL, /* init master */ |
| 539 | 136 NULL, /* init module */ |
| 541 | 137 NULL, /* init process */ |
| 138 NULL, /* init thread */ | |
| 139 NULL, /* exit thread */ | |
| 140 NULL, /* exit process */ | |
| 141 NULL, /* exit master */ | |
| 142 NGX_MODULE_V1_PADDING | |
| 539 | 143 }; |
| 144 | |
| 145 | |
| 1136 | 146 static ngx_str_t ngx_mail_ssl_sess_id_ctx = ngx_string("MAIL"); |
| 543 | 147 |
| 148 | |
| 539 | 149 static void * |
| 1136 | 150 ngx_mail_ssl_create_conf(ngx_conf_t *cf) |
| 577 | 151 { |
| 1136 | 152 ngx_mail_ssl_conf_t *scf; |
| 577 | 153 |
| 1136 | 154 scf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_ssl_conf_t)); |
| 539 | 155 if (scf == NULL) { |
|
2912
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return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
2759
diff
changeset
|
156 return NULL; |
| 539 | 157 } |
| 158 | |
| 159 /* | |
| 577 | 160 * set by ngx_pcalloc(): |
| 539 | 161 * |
| 547 | 162 * scf->protocols = 0; |
| 2044 | 163 * scf->certificate = { 0, NULL }; |
| 164 * scf->certificate_key = { 0, NULL }; | |
| 165 * scf->dhparam = { 0, NULL }; | |
|
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3196
diff
changeset
|
166 * scf->ciphers = { 0, NULL }; |
| 976 | 167 * scf->shm_zone = NULL; |
| 539 | 168 */ |
| 169 | |
| 170 scf->enable = NGX_CONF_UNSET; | |
| 2759 | 171 scf->starttls = NGX_CONF_UNSET_UINT; |
| 976 | 172 scf->prefer_server_ciphers = NGX_CONF_UNSET; |
| 173 scf->builtin_session_cache = NGX_CONF_UNSET; | |
| 573 | 174 scf->session_timeout = NGX_CONF_UNSET; |
| 539 | 175 |
| 176 return scf; | |
| 177 } | |
| 178 | |
| 179 | |
| 180 static char * | |
| 1136 | 181 ngx_mail_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child) |
| 539 | 182 { |
| 1136 | 183 ngx_mail_ssl_conf_t *prev = parent; |
| 184 ngx_mail_ssl_conf_t *conf = child; | |
| 539 | 185 |
| 2224 | 186 char *mode; |
| 563 | 187 ngx_pool_cleanup_t *cln; |
| 188 | |
| 539 | 189 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
| 2224 | 190 ngx_conf_merge_uint_value(conf->starttls, prev->starttls, |
| 191 NGX_MAIL_STARTTLS_OFF); | |
| 539 | 192 |
| 573 | 193 ngx_conf_merge_value(conf->session_timeout, |
| 194 prev->session_timeout, 300); | |
| 195 | |
| 547 | 196 ngx_conf_merge_value(conf->prefer_server_ciphers, |
| 197 prev->prefer_server_ciphers, 0); | |
| 198 | |
| 199 ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols, | |
|
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dd2ae3872634
disable SSLv2 and low ciphers by default
Igor Sysoev <igor@sysoev.ru>
parents:
2996
diff
changeset
|
200 (NGX_CONF_BITMASK_SET|NGX_SSL_SSLv3|NGX_SSL_TLSv1)); |
| 547 | 201 |
| 2224 | 202 ngx_conf_merge_str_value(conf->certificate, prev->certificate, ""); |
| 203 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key, ""); | |
| 539 | 204 |
| 2044 | 205 ngx_conf_merge_str_value(conf->dhparam, prev->dhparam, ""); |
| 206 | |
| 2124 | 207 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFAULT_CIPHERS); |
| 539 | 208 |
| 209 | |
| 547 | 210 conf->ssl.log = cf->log; |
| 539 | 211 |
| 2224 | 212 if (conf->enable) { |
| 213 mode = "ssl"; | |
| 214 | |
| 215 } else if (conf->starttls != NGX_MAIL_STARTTLS_OFF) { | |
| 216 mode = "starttls"; | |
| 217 | |
| 218 } else { | |
| 219 mode = ""; | |
| 220 } | |
| 221 | |
| 222 if (*mode) { | |
| 223 | |
| 224 if (conf->certificate.len == 0) { | |
| 225 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 226 "no \"ssl_certificate\" is defined for " | |
| 227 "the \"%s\" directive in %s:%ui", | |
| 228 mode, conf->file, conf->line); | |
| 229 return NGX_CONF_ERROR; | |
| 230 } | |
| 231 | |
| 232 if (conf->certificate_key.len == 0) { | |
| 233 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 234 "no \"ssl_certificate_key\" is defined for " | |
| 235 "the \"%s\" directive in %s:%ui", | |
| 236 mode, conf->file, conf->line); | |
| 237 return NGX_CONF_ERROR; | |
| 238 } | |
| 239 | |
| 240 } else { | |
| 241 | |
| 242 if (conf->certificate.len == 0) { | |
| 243 return NGX_CONF_OK; | |
| 244 } | |
| 245 | |
| 246 if (conf->certificate_key.len == 0) { | |
| 247 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 248 "no \"ssl_certificate_key\" is defined " | |
| 249 "for certificate \"%V\"", | |
| 250 &conf->certificate); | |
| 251 return NGX_CONF_ERROR; | |
| 252 } | |
| 253 } | |
| 254 | |
| 969 | 255 if (ngx_ssl_create(&conf->ssl, conf->protocols, NULL) != NGX_OK) { |
| 539 | 256 return NGX_CONF_ERROR; |
| 257 } | |
| 258 | |
| 563 | 259 cln = ngx_pool_cleanup_add(cf->pool, 0); |
| 260 if (cln == NULL) { | |
| 539 | 261 return NGX_CONF_ERROR; |
| 262 } | |
| 263 | |
| 563 | 264 cln->handler = ngx_ssl_cleanup_ctx; |
| 265 cln->data = &conf->ssl; | |
| 266 | |
| 267 if (ngx_ssl_certificate(cf, &conf->ssl, &conf->certificate, | |
| 268 &conf->certificate_key) | |
| 269 != NGX_OK) | |
| 547 | 270 { |
| 271 return NGX_CONF_ERROR; | |
| 272 } | |
| 539 | 273 |
| 274 if (conf->ciphers.len) { | |
| 547 | 275 if (SSL_CTX_set_cipher_list(conf->ssl.ctx, |
| 563 | 276 (const char *) conf->ciphers.data) |
| 277 == 0) | |
| 539 | 278 { |
| 279 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
| 280 "SSL_CTX_set_cipher_list(\"%V\") failed", | |
| 281 &conf->ciphers); | |
| 282 } | |
| 283 } | |
| 284 | |
| 563 | 285 if (conf->prefer_server_ciphers) { |
| 286 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE); | |
| 287 } | |
| 288 | |
| 547 | 289 if (ngx_ssl_generate_rsa512_key(&conf->ssl) != NGX_OK) { |
| 539 | 290 return NGX_CONF_ERROR; |
| 291 } | |
| 292 | |
| 2044 | 293 if (ngx_ssl_dhparam(cf, &conf->ssl, &conf->dhparam) != NGX_OK) { |
| 294 return NGX_CONF_ERROR; | |
| 295 } | |
| 296 | |
| 976 | 297 ngx_conf_merge_value(conf->builtin_session_cache, |
| 2032 | 298 prev->builtin_session_cache, NGX_SSL_NONE_SCACHE); |
| 976 | 299 |
| 300 if (conf->shm_zone == NULL) { | |
| 301 conf->shm_zone = prev->shm_zone; | |
| 302 } | |
| 539 | 303 |
| 1136 | 304 if (ngx_ssl_session_cache(&conf->ssl, &ngx_mail_ssl_sess_id_ctx, |
| 976 | 305 conf->builtin_session_cache, |
| 306 conf->shm_zone, conf->session_timeout) | |
| 307 != NGX_OK) | |
| 308 { | |
| 309 return NGX_CONF_ERROR; | |
| 310 } | |
| 573 | 311 |
| 539 | 312 return NGX_CONF_OK; |
| 313 } | |
| 563 | 314 |
| 577 | 315 |
| 976 | 316 static char * |
| 2224 | 317 ngx_mail_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 318 { | |
| 319 ngx_mail_ssl_conf_t *scf = conf; | |
| 320 | |
| 321 char *rv; | |
| 322 | |
| 323 rv = ngx_conf_set_flag_slot(cf, cmd, conf); | |
| 324 | |
| 325 if (rv != NGX_CONF_OK) { | |
| 326 return rv; | |
| 327 } | |
| 328 | |
| 329 if (scf->enable && (ngx_int_t) scf->starttls > NGX_MAIL_STARTTLS_OFF) { | |
| 330 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
| 331 "\"starttls\" directive conflicts with \"ssl on\""); | |
| 332 return NGX_CONF_ERROR; | |
| 333 } | |
| 334 | |
| 335 scf->file = cf->conf_file->file.name.data; | |
| 336 scf->line = cf->conf_file->line; | |
| 337 | |
| 338 return NGX_CONF_OK; | |
| 339 } | |
| 340 | |
| 341 | |
| 342 static char * | |
| 343 ngx_mail_ssl_starttls(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 344 { | |
| 345 ngx_mail_ssl_conf_t *scf = conf; | |
| 346 | |
| 347 char *rv; | |
| 348 | |
| 349 rv = ngx_conf_set_enum_slot(cf, cmd, conf); | |
| 350 | |
| 351 if (rv != NGX_CONF_OK) { | |
| 352 return rv; | |
| 353 } | |
| 354 | |
| 355 if (scf->enable == 1 && (ngx_int_t) scf->starttls > NGX_MAIL_STARTTLS_OFF) { | |
| 356 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
| 357 "\"ssl\" directive conflicts with \"starttls\""); | |
| 358 return NGX_CONF_ERROR; | |
| 359 } | |
| 360 | |
| 361 scf->file = cf->conf_file->file.name.data; | |
| 362 scf->line = cf->conf_file->line; | |
| 363 | |
| 364 return NGX_CONF_OK; | |
| 365 } | |
| 366 | |
| 367 | |
| 368 static char * | |
| 1136 | 369 ngx_mail_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 976 | 370 { |
| 1136 | 371 ngx_mail_ssl_conf_t *scf = conf; |
| 976 | 372 |
| 373 size_t len; | |
| 374 ngx_str_t *value, name, size; | |
| 375 ngx_int_t n; | |
| 376 ngx_uint_t i, j; | |
| 377 | |
| 378 value = cf->args->elts; | |
| 379 | |
| 380 for (i = 1; i < cf->args->nelts; i++) { | |
| 381 | |
| 1778 | 382 if (ngx_strcmp(value[i].data, "off") == 0) { |
| 383 scf->builtin_session_cache = NGX_SSL_NO_SCACHE; | |
| 384 continue; | |
| 385 } | |
| 386 | |
| 2032 | 387 if (ngx_strcmp(value[i].data, "none") == 0) { |
| 388 scf->builtin_session_cache = NGX_SSL_NONE_SCACHE; | |
| 389 continue; | |
| 390 } | |
| 391 | |
| 976 | 392 if (ngx_strcmp(value[i].data, "builtin") == 0) { |
| 393 scf->builtin_session_cache = NGX_SSL_DFLT_BUILTIN_SCACHE; | |
| 394 continue; | |
| 395 } | |
| 396 | |
| 397 if (value[i].len > sizeof("builtin:") - 1 | |
| 398 && ngx_strncmp(value[i].data, "builtin:", sizeof("builtin:") - 1) | |
| 399 == 0) | |
| 400 { | |
| 401 n = ngx_atoi(value[i].data + sizeof("builtin:") - 1, | |
| 402 value[i].len - (sizeof("builtin:") - 1)); | |
| 403 | |
| 404 if (n == NGX_ERROR) { | |
| 405 goto invalid; | |
| 406 } | |
| 407 | |
| 408 scf->builtin_session_cache = n; | |
| 409 | |
| 410 continue; | |
| 411 } | |
| 412 | |
| 413 if (value[i].len > sizeof("shared:") - 1 | |
| 414 && ngx_strncmp(value[i].data, "shared:", sizeof("shared:") - 1) | |
| 415 == 0) | |
| 416 { | |
| 417 len = 0; | |
| 418 | |
| 419 for (j = sizeof("shared:") - 1; j < value[i].len; j++) { | |
| 420 if (value[i].data[j] == ':') { | |
| 421 break; | |
| 422 } | |
| 423 | |
| 424 len++; | |
| 425 } | |
| 426 | |
| 427 if (len == 0) { | |
| 428 goto invalid; | |
| 429 } | |
| 430 | |
| 431 name.len = len; | |
| 432 name.data = value[i].data + sizeof("shared:") - 1; | |
| 433 | |
| 434 size.len = value[i].len - j - 1; | |
| 435 size.data = name.data + len + 1; | |
| 436 | |
| 437 n = ngx_parse_size(&size); | |
| 438 | |
| 439 if (n == NGX_ERROR) { | |
| 440 goto invalid; | |
| 441 } | |
| 442 | |
| 443 if (n < (ngx_int_t) (8 * ngx_pagesize)) { | |
| 444 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 445 "session cache \"%V\" is too small", | |
| 446 &value[i]); | |
| 447 | |
| 448 return NGX_CONF_ERROR; | |
| 449 } | |
| 450 | |
| 451 scf->shm_zone = ngx_shared_memory_add(cf, &name, n, | |
| 1136 | 452 &ngx_mail_ssl_module); |
| 976 | 453 if (scf->shm_zone == NULL) { |
| 454 return NGX_CONF_ERROR; | |
| 455 } | |
| 456 | |
| 457 continue; | |
| 458 } | |
| 459 | |
| 460 goto invalid; | |
| 461 } | |
| 462 | |
| 463 if (scf->shm_zone && scf->builtin_session_cache == NGX_CONF_UNSET) { | |
| 464 scf->builtin_session_cache = NGX_SSL_NO_BUILTIN_SCACHE; | |
| 465 } | |
| 466 | |
| 467 return NGX_CONF_OK; | |
| 468 | |
| 469 invalid: | |
| 470 | |
| 471 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 472 "invalid session cache \"%V\"", &value[i]); | |
| 473 | |
| 474 return NGX_CONF_ERROR; | |
| 475 } |