Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail_ssl_module.c @ 5737:44b9ab7752e3
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author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 26 Jun 2014 02:28:23 +0400 |
parents | d049b0ea00a3 |
children | 42114bf12da0 |
rev | line source |
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539 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
539 | 5 */ |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
1136 | 10 #include <ngx_mail.h> |
539 | 11 |
12 | |
3960 | 13 #define NGX_DEFAULT_CIPHERS "HIGH:!aNULL:!MD5" |
14 #define NGX_DEFAULT_ECDH_CURVE "prime256v1" | |
539 | 15 |
16 | |
1136 | 17 static void *ngx_mail_ssl_create_conf(ngx_conf_t *cf); |
18 static char *ngx_mail_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child); | |
2224 | 19 |
20 static char *ngx_mail_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, | |
21 void *conf); | |
22 static char *ngx_mail_ssl_starttls(ngx_conf_t *cf, ngx_command_t *cmd, | |
23 void *conf); | |
1136 | 24 static char *ngx_mail_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, |
976 | 25 void *conf); |
539 | 26 |
27 | |
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28 static ngx_conf_enum_t ngx_mail_starttls_state[] = { |
1136 | 29 { ngx_string("off"), NGX_MAIL_STARTTLS_OFF }, |
30 { ngx_string("on"), NGX_MAIL_STARTTLS_ON }, | |
31 { ngx_string("only"), NGX_MAIL_STARTTLS_ONLY }, | |
583 | 32 { ngx_null_string, 0 } |
33 }; | |
34 | |
35 | |
36 | |
1136 | 37 static ngx_conf_bitmask_t ngx_mail_ssl_protocols[] = { |
547 | 38 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, |
39 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
40 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
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41 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, |
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42 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, |
547 | 43 { ngx_null_string, 0 } |
44 }; | |
45 | |
46 | |
1136 | 47 static ngx_command_t ngx_mail_ssl_commands[] = { |
539 | 48 |
49 { ngx_string("ssl"), | |
1136 | 50 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
2224 | 51 ngx_mail_ssl_enable, |
1136 | 52 NGX_MAIL_SRV_CONF_OFFSET, |
53 offsetof(ngx_mail_ssl_conf_t, enable), | |
539 | 54 NULL }, |
55 | |
583 | 56 { ngx_string("starttls"), |
1136 | 57 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
2224 | 58 ngx_mail_ssl_starttls, |
1136 | 59 NGX_MAIL_SRV_CONF_OFFSET, |
60 offsetof(ngx_mail_ssl_conf_t, starttls), | |
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61 ngx_mail_starttls_state }, |
583 | 62 |
539 | 63 { ngx_string("ssl_certificate"), |
1136 | 64 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
539 | 65 ngx_conf_set_str_slot, |
1136 | 66 NGX_MAIL_SRV_CONF_OFFSET, |
67 offsetof(ngx_mail_ssl_conf_t, certificate), | |
539 | 68 NULL }, |
69 | |
70 { ngx_string("ssl_certificate_key"), | |
1136 | 71 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
539 | 72 ngx_conf_set_str_slot, |
1136 | 73 NGX_MAIL_SRV_CONF_OFFSET, |
74 offsetof(ngx_mail_ssl_conf_t, certificate_key), | |
539 | 75 NULL }, |
76 | |
2044 | 77 { ngx_string("ssl_dhparam"), |
78 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, | |
79 ngx_conf_set_str_slot, | |
80 NGX_MAIL_SRV_CONF_OFFSET, | |
81 offsetof(ngx_mail_ssl_conf_t, dhparam), | |
82 NULL }, | |
83 | |
3960 | 84 { ngx_string("ssl_ecdh_curve"), |
85 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, | |
86 ngx_conf_set_str_slot, | |
87 NGX_MAIL_SRV_CONF_OFFSET, | |
88 offsetof(ngx_mail_ssl_conf_t, ecdh_curve), | |
89 NULL }, | |
90 | |
547 | 91 { ngx_string("ssl_protocols"), |
1136 | 92 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, |
547 | 93 ngx_conf_set_bitmask_slot, |
1136 | 94 NGX_MAIL_SRV_CONF_OFFSET, |
95 offsetof(ngx_mail_ssl_conf_t, protocols), | |
96 &ngx_mail_ssl_protocols }, | |
547 | 97 |
539 | 98 { ngx_string("ssl_ciphers"), |
1136 | 99 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
539 | 100 ngx_conf_set_str_slot, |
1136 | 101 NGX_MAIL_SRV_CONF_OFFSET, |
102 offsetof(ngx_mail_ssl_conf_t, ciphers), | |
539 | 103 NULL }, |
104 | |
547 | 105 { ngx_string("ssl_prefer_server_ciphers"), |
1136 | 106 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
547 | 107 ngx_conf_set_flag_slot, |
1136 | 108 NGX_MAIL_SRV_CONF_OFFSET, |
109 offsetof(ngx_mail_ssl_conf_t, prefer_server_ciphers), | |
547 | 110 NULL }, |
563 | 111 |
976 | 112 { ngx_string("ssl_session_cache"), |
1136 | 113 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE12, |
114 ngx_mail_ssl_session_cache, | |
115 NGX_MAIL_SRV_CONF_OFFSET, | |
976 | 116 0, |
117 NULL }, | |
118 | |
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119 { ngx_string("ssl_session_tickets"), |
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120 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
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121 ngx_conf_set_flag_slot, |
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122 NGX_MAIL_SRV_CONF_OFFSET, |
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123 offsetof(ngx_mail_ssl_conf_t, session_tickets), |
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124 NULL }, |
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125 |
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126 { ngx_string("ssl_session_ticket_key"), |
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127 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
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128 ngx_conf_set_str_array_slot, |
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129 NGX_MAIL_SRV_CONF_OFFSET, |
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130 offsetof(ngx_mail_ssl_conf_t, session_ticket_keys), |
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131 NULL }, |
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132 |
573 | 133 { ngx_string("ssl_session_timeout"), |
1136 | 134 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
573 | 135 ngx_conf_set_sec_slot, |
1136 | 136 NGX_MAIL_SRV_CONF_OFFSET, |
137 offsetof(ngx_mail_ssl_conf_t, session_timeout), | |
573 | 138 NULL }, |
547 | 139 |
539 | 140 ngx_null_command |
141 }; | |
142 | |
143 | |
1136 | 144 static ngx_mail_module_t ngx_mail_ssl_module_ctx = { |
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145 NULL, /* protocol */ |
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146 |
539 | 147 NULL, /* create main configuration */ |
148 NULL, /* init main configuration */ | |
149 | |
1136 | 150 ngx_mail_ssl_create_conf, /* create server configuration */ |
151 ngx_mail_ssl_merge_conf /* merge server configuration */ | |
539 | 152 }; |
153 | |
154 | |
1136 | 155 ngx_module_t ngx_mail_ssl_module = { |
539 | 156 NGX_MODULE_V1, |
1136 | 157 &ngx_mail_ssl_module_ctx, /* module context */ |
158 ngx_mail_ssl_commands, /* module directives */ | |
159 NGX_MAIL_MODULE, /* module type */ | |
541 | 160 NULL, /* init master */ |
539 | 161 NULL, /* init module */ |
541 | 162 NULL, /* init process */ |
163 NULL, /* init thread */ | |
164 NULL, /* exit thread */ | |
165 NULL, /* exit process */ | |
166 NULL, /* exit master */ | |
167 NGX_MODULE_V1_PADDING | |
539 | 168 }; |
169 | |
170 | |
1136 | 171 static ngx_str_t ngx_mail_ssl_sess_id_ctx = ngx_string("MAIL"); |
543 | 172 |
173 | |
539 | 174 static void * |
1136 | 175 ngx_mail_ssl_create_conf(ngx_conf_t *cf) |
577 | 176 { |
1136 | 177 ngx_mail_ssl_conf_t *scf; |
577 | 178 |
1136 | 179 scf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_ssl_conf_t)); |
539 | 180 if (scf == NULL) { |
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181 return NULL; |
539 | 182 } |
183 | |
184 /* | |
577 | 185 * set by ngx_pcalloc(): |
539 | 186 * |
547 | 187 * scf->protocols = 0; |
2044 | 188 * scf->certificate = { 0, NULL }; |
189 * scf->certificate_key = { 0, NULL }; | |
190 * scf->dhparam = { 0, NULL }; | |
3960 | 191 * scf->ecdh_curve = { 0, NULL }; |
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192 * scf->ciphers = { 0, NULL }; |
976 | 193 * scf->shm_zone = NULL; |
539 | 194 */ |
195 | |
196 scf->enable = NGX_CONF_UNSET; | |
2759 | 197 scf->starttls = NGX_CONF_UNSET_UINT; |
976 | 198 scf->prefer_server_ciphers = NGX_CONF_UNSET; |
199 scf->builtin_session_cache = NGX_CONF_UNSET; | |
573 | 200 scf->session_timeout = NGX_CONF_UNSET; |
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201 scf->session_tickets = NGX_CONF_UNSET; |
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202 scf->session_ticket_keys = NGX_CONF_UNSET_PTR; |
539 | 203 |
204 return scf; | |
205 } | |
206 | |
207 | |
208 static char * | |
1136 | 209 ngx_mail_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child) |
539 | 210 { |
1136 | 211 ngx_mail_ssl_conf_t *prev = parent; |
212 ngx_mail_ssl_conf_t *conf = child; | |
539 | 213 |
2224 | 214 char *mode; |
563 | 215 ngx_pool_cleanup_t *cln; |
216 | |
539 | 217 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
2224 | 218 ngx_conf_merge_uint_value(conf->starttls, prev->starttls, |
219 NGX_MAIL_STARTTLS_OFF); | |
539 | 220 |
573 | 221 ngx_conf_merge_value(conf->session_timeout, |
222 prev->session_timeout, 300); | |
223 | |
547 | 224 ngx_conf_merge_value(conf->prefer_server_ciphers, |
225 prev->prefer_server_ciphers, 0); | |
226 | |
227 ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols, | |
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228 (NGX_CONF_BITMASK_SET|NGX_SSL_SSLv3|NGX_SSL_TLSv1 |
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229 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); |
547 | 230 |
2224 | 231 ngx_conf_merge_str_value(conf->certificate, prev->certificate, ""); |
232 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key, ""); | |
539 | 233 |
2044 | 234 ngx_conf_merge_str_value(conf->dhparam, prev->dhparam, ""); |
235 | |
3960 | 236 ngx_conf_merge_str_value(conf->ecdh_curve, prev->ecdh_curve, |
237 NGX_DEFAULT_ECDH_CURVE); | |
238 | |
2124 | 239 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFAULT_CIPHERS); |
539 | 240 |
241 | |
547 | 242 conf->ssl.log = cf->log; |
539 | 243 |
2224 | 244 if (conf->enable) { |
245 mode = "ssl"; | |
246 | |
247 } else if (conf->starttls != NGX_MAIL_STARTTLS_OFF) { | |
248 mode = "starttls"; | |
249 | |
250 } else { | |
251 mode = ""; | |
252 } | |
253 | |
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254 if (conf->file == NULL) { |
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255 conf->file = prev->file; |
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256 conf->line = prev->line; |
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257 } |
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258 |
2224 | 259 if (*mode) { |
260 | |
261 if (conf->certificate.len == 0) { | |
262 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
263 "no \"ssl_certificate\" is defined for " | |
264 "the \"%s\" directive in %s:%ui", | |
265 mode, conf->file, conf->line); | |
266 return NGX_CONF_ERROR; | |
267 } | |
268 | |
269 if (conf->certificate_key.len == 0) { | |
270 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
271 "no \"ssl_certificate_key\" is defined for " | |
272 "the \"%s\" directive in %s:%ui", | |
273 mode, conf->file, conf->line); | |
274 return NGX_CONF_ERROR; | |
275 } | |
276 | |
277 } else { | |
278 | |
279 if (conf->certificate.len == 0) { | |
280 return NGX_CONF_OK; | |
281 } | |
282 | |
283 if (conf->certificate_key.len == 0) { | |
284 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
285 "no \"ssl_certificate_key\" is defined " | |
286 "for certificate \"%V\"", | |
287 &conf->certificate); | |
288 return NGX_CONF_ERROR; | |
289 } | |
290 } | |
291 | |
969 | 292 if (ngx_ssl_create(&conf->ssl, conf->protocols, NULL) != NGX_OK) { |
539 | 293 return NGX_CONF_ERROR; |
294 } | |
295 | |
563 | 296 cln = ngx_pool_cleanup_add(cf->pool, 0); |
297 if (cln == NULL) { | |
539 | 298 return NGX_CONF_ERROR; |
299 } | |
300 | |
563 | 301 cln->handler = ngx_ssl_cleanup_ctx; |
302 cln->data = &conf->ssl; | |
303 | |
304 if (ngx_ssl_certificate(cf, &conf->ssl, &conf->certificate, | |
305 &conf->certificate_key) | |
306 != NGX_OK) | |
547 | 307 { |
308 return NGX_CONF_ERROR; | |
309 } | |
539 | 310 |
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311 if (SSL_CTX_set_cipher_list(conf->ssl.ctx, |
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312 (const char *) conf->ciphers.data) |
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313 == 0) |
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314 { |
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315 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, |
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316 "SSL_CTX_set_cipher_list(\"%V\") failed", |
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317 &conf->ciphers); |
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318 return NGX_CONF_ERROR; |
539 | 319 } |
320 | |
563 | 321 if (conf->prefer_server_ciphers) { |
322 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE); | |
323 } | |
324 | |
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325 SSL_CTX_set_tmp_rsa_callback(conf->ssl.ctx, ngx_ssl_rsa512_key_callback); |
539 | 326 |
2044 | 327 if (ngx_ssl_dhparam(cf, &conf->ssl, &conf->dhparam) != NGX_OK) { |
328 return NGX_CONF_ERROR; | |
329 } | |
330 | |
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331 if (ngx_ssl_ecdh_curve(cf, &conf->ssl, &conf->ecdh_curve) != NGX_OK) { |
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332 return NGX_CONF_ERROR; |
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333 } |
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334 |
976 | 335 ngx_conf_merge_value(conf->builtin_session_cache, |
2032 | 336 prev->builtin_session_cache, NGX_SSL_NONE_SCACHE); |
976 | 337 |
338 if (conf->shm_zone == NULL) { | |
339 conf->shm_zone = prev->shm_zone; | |
340 } | |
539 | 341 |
1136 | 342 if (ngx_ssl_session_cache(&conf->ssl, &ngx_mail_ssl_sess_id_ctx, |
976 | 343 conf->builtin_session_cache, |
344 conf->shm_zone, conf->session_timeout) | |
345 != NGX_OK) | |
346 { | |
347 return NGX_CONF_ERROR; | |
348 } | |
573 | 349 |
5503
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350 ngx_conf_merge_value(conf->session_tickets, |
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351 prev->session_tickets, 1); |
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352 |
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353 #ifdef SSL_OP_NO_TICKET |
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354 if (!conf->session_tickets) { |
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355 SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_NO_TICKET); |
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356 } |
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357 #endif |
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358 |
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359 ngx_conf_merge_ptr_value(conf->session_ticket_keys, |
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360 prev->session_ticket_keys, NULL); |
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361 |
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362 if (ngx_ssl_session_ticket_keys(cf, &conf->ssl, conf->session_ticket_keys) |
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363 != NGX_OK) |
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364 { |
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365 return NGX_CONF_ERROR; |
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366 } |
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367 |
539 | 368 return NGX_CONF_OK; |
369 } | |
563 | 370 |
577 | 371 |
976 | 372 static char * |
2224 | 373 ngx_mail_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
374 { | |
375 ngx_mail_ssl_conf_t *scf = conf; | |
376 | |
377 char *rv; | |
378 | |
379 rv = ngx_conf_set_flag_slot(cf, cmd, conf); | |
380 | |
381 if (rv != NGX_CONF_OK) { | |
382 return rv; | |
383 } | |
384 | |
385 if (scf->enable && (ngx_int_t) scf->starttls > NGX_MAIL_STARTTLS_OFF) { | |
386 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
387 "\"starttls\" directive conflicts with \"ssl on\""); | |
388 return NGX_CONF_ERROR; | |
389 } | |
390 | |
391 scf->file = cf->conf_file->file.name.data; | |
392 scf->line = cf->conf_file->line; | |
393 | |
394 return NGX_CONF_OK; | |
395 } | |
396 | |
397 | |
398 static char * | |
399 ngx_mail_ssl_starttls(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
400 { | |
401 ngx_mail_ssl_conf_t *scf = conf; | |
402 | |
403 char *rv; | |
404 | |
405 rv = ngx_conf_set_enum_slot(cf, cmd, conf); | |
406 | |
407 if (rv != NGX_CONF_OK) { | |
408 return rv; | |
409 } | |
410 | |
411 if (scf->enable == 1 && (ngx_int_t) scf->starttls > NGX_MAIL_STARTTLS_OFF) { | |
412 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
413 "\"ssl\" directive conflicts with \"starttls\""); | |
414 return NGX_CONF_ERROR; | |
415 } | |
416 | |
417 scf->file = cf->conf_file->file.name.data; | |
418 scf->line = cf->conf_file->line; | |
419 | |
420 return NGX_CONF_OK; | |
421 } | |
422 | |
423 | |
424 static char * | |
1136 | 425 ngx_mail_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
976 | 426 { |
1136 | 427 ngx_mail_ssl_conf_t *scf = conf; |
976 | 428 |
429 size_t len; | |
430 ngx_str_t *value, name, size; | |
431 ngx_int_t n; | |
432 ngx_uint_t i, j; | |
433 | |
434 value = cf->args->elts; | |
435 | |
436 for (i = 1; i < cf->args->nelts; i++) { | |
437 | |
1778 | 438 if (ngx_strcmp(value[i].data, "off") == 0) { |
439 scf->builtin_session_cache = NGX_SSL_NO_SCACHE; | |
440 continue; | |
441 } | |
442 | |
2032 | 443 if (ngx_strcmp(value[i].data, "none") == 0) { |
444 scf->builtin_session_cache = NGX_SSL_NONE_SCACHE; | |
445 continue; | |
446 } | |
447 | |
976 | 448 if (ngx_strcmp(value[i].data, "builtin") == 0) { |
449 scf->builtin_session_cache = NGX_SSL_DFLT_BUILTIN_SCACHE; | |
450 continue; | |
451 } | |
452 | |
453 if (value[i].len > sizeof("builtin:") - 1 | |
454 && ngx_strncmp(value[i].data, "builtin:", sizeof("builtin:") - 1) | |
455 == 0) | |
456 { | |
457 n = ngx_atoi(value[i].data + sizeof("builtin:") - 1, | |
458 value[i].len - (sizeof("builtin:") - 1)); | |
459 | |
460 if (n == NGX_ERROR) { | |
461 goto invalid; | |
462 } | |
463 | |
464 scf->builtin_session_cache = n; | |
465 | |
466 continue; | |
467 } | |
468 | |
469 if (value[i].len > sizeof("shared:") - 1 | |
470 && ngx_strncmp(value[i].data, "shared:", sizeof("shared:") - 1) | |
471 == 0) | |
472 { | |
473 len = 0; | |
474 | |
475 for (j = sizeof("shared:") - 1; j < value[i].len; j++) { | |
476 if (value[i].data[j] == ':') { | |
477 break; | |
478 } | |
479 | |
480 len++; | |
481 } | |
482 | |
483 if (len == 0) { | |
484 goto invalid; | |
485 } | |
486 | |
487 name.len = len; | |
488 name.data = value[i].data + sizeof("shared:") - 1; | |
489 | |
490 size.len = value[i].len - j - 1; | |
491 size.data = name.data + len + 1; | |
492 | |
493 n = ngx_parse_size(&size); | |
494 | |
495 if (n == NGX_ERROR) { | |
496 goto invalid; | |
497 } | |
498 | |
499 if (n < (ngx_int_t) (8 * ngx_pagesize)) { | |
500 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
501 "session cache \"%V\" is too small", | |
502 &value[i]); | |
503 | |
504 return NGX_CONF_ERROR; | |
505 } | |
506 | |
507 scf->shm_zone = ngx_shared_memory_add(cf, &name, n, | |
1136 | 508 &ngx_mail_ssl_module); |
976 | 509 if (scf->shm_zone == NULL) { |
510 return NGX_CONF_ERROR; | |
511 } | |
512 | |
4153
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Fix for "ssl_session_cache builtin" (broken since 1.1.1, r3993).
Maxim Dounin <mdounin@mdounin.ru>
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changeset
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513 scf->shm_zone->init = ngx_ssl_session_cache_init; |
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Fix for "ssl_session_cache builtin" (broken since 1.1.1, r3993).
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parents:
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diff
changeset
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514 |
976 | 515 continue; |
516 } | |
517 | |
518 goto invalid; | |
519 } | |
520 | |
521 if (scf->shm_zone && scf->builtin_session_cache == NGX_CONF_UNSET) { | |
522 scf->builtin_session_cache = NGX_SSL_NO_BUILTIN_SCACHE; | |
523 } | |
524 | |
525 return NGX_CONF_OK; | |
526 | |
527 invalid: | |
528 | |
529 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
530 "invalid session cache \"%V\"", &value[i]); | |
531 | |
532 return NGX_CONF_ERROR; | |
533 } |