Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail_core_module.c @ 4515:8bb695c05870 stable-1.0
Merge of r4498:
Fix of rbtree lookup on hash collisions.
Previous code incorrectly assumed that nodes with identical keys are linked
together. This might not be true after tree rebalance.
Patch by Lanshun Zhou.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 05 Mar 2012 13:17:56 +0000 |
| parents | 4919fb357a5d |
| children |
| rev | line source |
|---|---|
| 521 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
|
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4 * Copyright (C) Nginx, Inc. |
| 521 | 5 */ |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_event.h> | |
| 1136 | 11 #include <ngx_mail.h> |
| 521 | 12 |
| 13 | |
| 1136 | 14 static void *ngx_mail_core_create_main_conf(ngx_conf_t *cf); |
| 15 static void *ngx_mail_core_create_srv_conf(ngx_conf_t *cf); | |
| 16 static char *ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent, | |
| 521 | 17 void *child); |
| 1136 | 18 static char *ngx_mail_core_server(ngx_conf_t *cf, ngx_command_t *cmd, |
| 521 | 19 void *conf); |
| 1136 | 20 static char *ngx_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, |
| 521 | 21 void *conf); |
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22 static char *ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd, |
| 527 | 23 void *conf); |
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24 static char *ngx_mail_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, |
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25 void *conf); |
| 521 | 26 |
| 27 | |
| 1136 | 28 static ngx_command_t ngx_mail_core_commands[] = { |
| 521 | 29 |
| 30 { ngx_string("server"), | |
| 1136 | 31 NGX_MAIL_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, |
| 32 ngx_mail_core_server, | |
| 521 | 33 0, |
| 34 0, | |
| 35 NULL }, | |
| 36 | |
| 37 { ngx_string("listen"), | |
| 1136 | 38 NGX_MAIL_SRV_CONF|NGX_CONF_TAKE12, |
| 39 ngx_mail_core_listen, | |
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40 NGX_MAIL_SRV_CONF_OFFSET, |
| 521 | 41 0, |
| 42 NULL }, | |
| 43 | |
| 44 { ngx_string("protocol"), | |
| 1136 | 45 NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
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46 ngx_mail_core_protocol, |
| 1136 | 47 NGX_MAIL_SRV_CONF_OFFSET, |
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48 0, |
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49 NULL }, |
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50 |
| 587 | 51 { ngx_string("so_keepalive"), |
| 1136 | 52 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
| 587 | 53 ngx_conf_set_flag_slot, |
| 1136 | 54 NGX_MAIL_SRV_CONF_OFFSET, |
| 55 offsetof(ngx_mail_core_srv_conf_t, so_keepalive), | |
| 587 | 56 NULL }, |
| 57 | |
| 521 | 58 { ngx_string("timeout"), |
| 1136 | 59 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
| 521 | 60 ngx_conf_set_msec_slot, |
| 1136 | 61 NGX_MAIL_SRV_CONF_OFFSET, |
| 62 offsetof(ngx_mail_core_srv_conf_t, timeout), | |
| 521 | 63 NULL }, |
| 64 | |
| 800 | 65 { ngx_string("server_name"), |
| 1136 | 66 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
| 800 | 67 ngx_conf_set_str_slot, |
| 1136 | 68 NGX_MAIL_SRV_CONF_OFFSET, |
| 69 offsetof(ngx_mail_core_srv_conf_t, server_name), | |
| 800 | 70 NULL }, |
| 71 | |
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72 { ngx_string("resolver"), |
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73 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
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74 ngx_mail_core_resolver, |
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75 NGX_MAIL_SRV_CONF_OFFSET, |
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76 0, |
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77 NULL }, |
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78 |
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79 { ngx_string("resolver_timeout"), |
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80 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
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81 ngx_conf_set_msec_slot, |
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82 NGX_MAIL_SRV_CONF_OFFSET, |
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83 offsetof(ngx_mail_core_srv_conf_t, resolver_timeout), |
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84 NULL }, |
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85 |
| 521 | 86 ngx_null_command |
| 87 }; | |
| 88 | |
| 89 | |
| 1136 | 90 static ngx_mail_module_t ngx_mail_core_module_ctx = { |
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91 NULL, /* protocol */ |
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92 |
| 1136 | 93 ngx_mail_core_create_main_conf, /* create main configuration */ |
| 521 | 94 NULL, /* init main configuration */ |
| 95 | |
| 1136 | 96 ngx_mail_core_create_srv_conf, /* create server configuration */ |
| 97 ngx_mail_core_merge_srv_conf /* merge server configuration */ | |
| 521 | 98 }; |
| 99 | |
| 100 | |
| 1136 | 101 ngx_module_t ngx_mail_core_module = { |
| 521 | 102 NGX_MODULE_V1, |
| 1136 | 103 &ngx_mail_core_module_ctx, /* module context */ |
| 104 ngx_mail_core_commands, /* module directives */ | |
| 105 NGX_MAIL_MODULE, /* module type */ | |
| 541 | 106 NULL, /* init master */ |
| 521 | 107 NULL, /* init module */ |
| 541 | 108 NULL, /* init process */ |
| 109 NULL, /* init thread */ | |
| 110 NULL, /* exit thread */ | |
| 111 NULL, /* exit process */ | |
| 112 NULL, /* exit master */ | |
| 113 NGX_MODULE_V1_PADDING | |
| 521 | 114 }; |
| 115 | |
| 116 | |
| 117 static void * | |
| 1136 | 118 ngx_mail_core_create_main_conf(ngx_conf_t *cf) |
| 577 | 119 { |
| 1136 | 120 ngx_mail_core_main_conf_t *cmcf; |
| 521 | 121 |
| 1136 | 122 cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_main_conf_t)); |
| 521 | 123 if (cmcf == NULL) { |
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124 return NULL; |
| 521 | 125 } |
| 126 | |
| 127 if (ngx_array_init(&cmcf->servers, cf->pool, 4, | |
| 1136 | 128 sizeof(ngx_mail_core_srv_conf_t *)) |
| 641 | 129 != NGX_OK) |
| 130 { | |
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131 return NULL; |
| 641 | 132 } |
| 133 | |
| 1136 | 134 if (ngx_array_init(&cmcf->listen, cf->pool, 4, sizeof(ngx_mail_listen_t)) |
| 641 | 135 != NGX_OK) |
| 521 | 136 { |
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137 return NULL; |
| 521 | 138 } |
| 139 | |
| 140 return cmcf; | |
| 141 } | |
| 142 | |
| 143 | |
| 144 static void * | |
| 1136 | 145 ngx_mail_core_create_srv_conf(ngx_conf_t *cf) |
| 577 | 146 { |
| 1136 | 147 ngx_mail_core_srv_conf_t *cscf; |
| 577 | 148 |
| 1136 | 149 cscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_srv_conf_t)); |
| 521 | 150 if (cscf == NULL) { |
| 527 | 151 return NULL; |
| 521 | 152 } |
| 153 | |
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154 /* |
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155 * set by ngx_pcalloc(): |
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156 * |
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157 * cscf->protocol = NULL; |
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158 */ |
| 521 | 159 |
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160 cscf->timeout = NGX_CONF_UNSET_MSEC; |
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161 cscf->resolver_timeout = NGX_CONF_UNSET_MSEC; |
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162 cscf->so_keepalive = NGX_CONF_UNSET; |
| 1136 | 163 |
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164 cscf->resolver = NGX_CONF_UNSET_PTR; |
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165 |
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166 cscf->file_name = cf->conf_file->file.name.data; |
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167 cscf->line = cf->conf_file->line; |
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168 |
| 521 | 169 return cscf; |
| 170 } | |
| 171 | |
| 172 | |
| 173 static char * | |
| 1136 | 174 ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
| 521 | 175 { |
| 1136 | 176 ngx_mail_core_srv_conf_t *prev = parent; |
| 177 ngx_mail_core_srv_conf_t *conf = child; | |
| 521 | 178 |
| 179 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000); | |
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180 ngx_conf_merge_msec_value(conf->resolver_timeout, prev->resolver_timeout, |
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181 30000); |
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182 |
| 587 | 183 ngx_conf_merge_value(conf->so_keepalive, prev->so_keepalive, 0); |
| 521 | 184 |
| 800 | 185 |
| 186 ngx_conf_merge_str_value(conf->server_name, prev->server_name, ""); | |
| 187 | |
| 188 if (conf->server_name.len == 0) { | |
| 2011 | 189 conf->server_name = cf->cycle->hostname; |
| 800 | 190 } |
| 191 | |
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192 if (conf->protocol == NULL) { |
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193 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
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194 "unknown mail protocol for server in %s:%ui", |
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195 conf->file_name, conf->line); |
| 583 | 196 return NGX_CONF_ERROR; |
| 197 } | |
| 198 | |
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199 ngx_conf_merge_ptr_value(conf->resolver, prev->resolver, NULL); |
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200 |
| 521 | 201 return NGX_CONF_OK; |
| 202 } | |
| 203 | |
| 204 | |
| 205 static char * | |
| 1136 | 206 ngx_mail_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 521 | 207 { |
| 208 char *rv; | |
| 209 void *mconf; | |
| 210 ngx_uint_t m; | |
| 211 ngx_conf_t pcf; | |
| 1136 | 212 ngx_mail_module_t *module; |
| 213 ngx_mail_conf_ctx_t *ctx, *mail_ctx; | |
| 214 ngx_mail_core_srv_conf_t *cscf, **cscfp; | |
| 215 ngx_mail_core_main_conf_t *cmcf; | |
| 521 | 216 |
| 1136 | 217 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t)); |
| 521 | 218 if (ctx == NULL) { |
| 219 return NGX_CONF_ERROR; | |
| 220 } | |
| 221 | |
| 1136 | 222 mail_ctx = cf->ctx; |
| 223 ctx->main_conf = mail_ctx->main_conf; | |
| 577 | 224 |
| 521 | 225 /* the server{}'s srv_conf */ |
| 226 | |
| 1136 | 227 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_max_module); |
| 521 | 228 if (ctx->srv_conf == NULL) { |
| 229 return NGX_CONF_ERROR; | |
| 230 } | |
| 231 | |
| 232 for (m = 0; ngx_modules[m]; m++) { | |
| 1136 | 233 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
| 521 | 234 continue; |
| 235 } | |
| 236 | |
| 237 module = ngx_modules[m]->ctx; | |
| 238 | |
| 239 if (module->create_srv_conf) { | |
| 240 mconf = module->create_srv_conf(cf); | |
| 241 if (mconf == NULL) { | |
| 242 return NGX_CONF_ERROR; | |
| 243 } | |
| 244 | |
| 245 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 246 } | |
| 247 } | |
| 248 | |
| 249 /* the server configuration context */ | |
| 250 | |
| 1136 | 251 cscf = ctx->srv_conf[ngx_mail_core_module.ctx_index]; |
| 521 | 252 cscf->ctx = ctx; |
| 253 | |
| 1136 | 254 cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index]; |
| 521 | 255 |
| 256 cscfp = ngx_array_push(&cmcf->servers); | |
| 257 if (cscfp == NULL) { | |
| 258 return NGX_CONF_ERROR; | |
| 259 } | |
| 260 | |
| 261 *cscfp = cscf; | |
| 262 | |
| 263 | |
| 264 /* parse inside server{} */ | |
| 265 | |
| 266 pcf = *cf; | |
| 267 cf->ctx = ctx; | |
| 1136 | 268 cf->cmd_type = NGX_MAIL_SRV_CONF; |
| 521 | 269 |
| 270 rv = ngx_conf_parse(cf, NULL); | |
| 271 | |
| 272 *cf = pcf; | |
| 273 | |
| 274 return rv; | |
| 275 } | |
| 276 | |
| 277 | |
| 278 static char * | |
| 1136 | 279 ngx_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 521 | 280 { |
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281 ngx_mail_core_srv_conf_t *cscf = conf; |
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282 |
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283 size_t len, off; |
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284 in_port_t port; |
| 641 | 285 ngx_str_t *value; |
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286 ngx_url_t u; |
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287 ngx_uint_t i, m; |
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288 struct sockaddr *sa; |
| 2798 | 289 ngx_mail_listen_t *ls; |
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290 ngx_mail_module_t *module; |
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291 struct sockaddr_in *sin; |
| 1136 | 292 ngx_mail_core_main_conf_t *cmcf; |
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293 #if (NGX_HAVE_INET6) |
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294 struct sockaddr_in6 *sin6; |
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295 #endif |
| 521 | 296 |
| 297 value = cf->args->elts; | |
| 298 | |
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299 ngx_memzero(&u, sizeof(ngx_url_t)); |
| 521 | 300 |
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301 u.url = value[1]; |
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302 u.listen = 1; |
| 619 | 303 |
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304 if (ngx_parse_url(cf->pool, &u) != NGX_OK) { |
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305 if (u.err) { |
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306 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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307 "%s in \"%V\" of the \"listen\" directive", |
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308 u.err, &u.url); |
| 521 | 309 } |
| 310 | |
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311 return NGX_CONF_ERROR; |
| 521 | 312 } |
| 313 | |
| 1136 | 314 cmcf = ngx_mail_conf_get_module_main_conf(cf, ngx_mail_core_module); |
| 521 | 315 |
| 2798 | 316 ls = cmcf->listen.elts; |
| 641 | 317 |
| 318 for (i = 0; i < cmcf->listen.nelts; i++) { | |
| 319 | |
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320 sa = (struct sockaddr *) ls[i].sockaddr; |
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321 |
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322 if (sa->sa_family != u.family) { |
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323 continue; |
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324 } |
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325 |
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326 switch (sa->sa_family) { |
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327 |
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328 #if (NGX_HAVE_INET6) |
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329 case AF_INET6: |
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330 off = offsetof(struct sockaddr_in6, sin6_addr); |
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331 len = 16; |
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332 sin6 = (struct sockaddr_in6 *) sa; |
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333 port = sin6->sin6_port; |
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334 break; |
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335 #endif |
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336 |
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337 default: /* AF_INET */ |
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338 off = offsetof(struct sockaddr_in, sin_addr); |
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339 len = 4; |
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340 sin = (struct sockaddr_in *) sa; |
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341 port = sin->sin_port; |
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342 break; |
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343 } |
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344 |
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345 if (ngx_memcmp(ls[i].sockaddr + off, u.sockaddr + off, len) != 0) { |
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346 continue; |
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347 } |
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348 |
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349 if (port != u.port) { |
| 641 | 350 continue; |
| 351 } | |
| 352 | |
| 353 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
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354 "duplicate \"%V\" address and port pair", &u.url); |
| 577 | 355 return NGX_CONF_ERROR; |
| 521 | 356 } |
| 357 | |
| 2798 | 358 ls = ngx_array_push(&cmcf->listen); |
| 359 if (ls == NULL) { | |
| 641 | 360 return NGX_CONF_ERROR; |
| 361 } | |
| 563 | 362 |
| 2798 | 363 ngx_memzero(ls, sizeof(ngx_mail_listen_t)); |
| 641 | 364 |
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365 ngx_memcpy(ls->sockaddr, u.sockaddr, u.socklen); |
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366 |
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367 ls->socklen = u.socklen; |
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368 ls->wildcard = u.wildcard; |
| 2798 | 369 ls->ctx = cf->ctx; |
| 521 | 370 |
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371 for (m = 0; ngx_modules[m]; m++) { |
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372 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
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373 continue; |
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374 } |
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375 |
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376 module = ngx_modules[m]->ctx; |
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377 |
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378 if (module->protocol == NULL) { |
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379 continue; |
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380 } |
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381 |
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382 for (i = 0; module->protocol->port[i]; i++) { |
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383 if (module->protocol->port[i] == u.port) { |
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384 cscf->protocol = module->protocol; |
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385 break; |
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386 } |
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387 } |
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388 } |
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389 |
| 2224 | 390 for (i = 2; i < cf->args->nelts; i++) { |
| 391 | |
| 392 if (ngx_strcmp(value[i].data, "bind") == 0) { | |
| 2798 | 393 ls->bind = 1; |
| 2224 | 394 continue; |
| 395 } | |
| 396 | |
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397 if (ngx_strncmp(value[i].data, "ipv6only=o", 10) == 0) { |
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398 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) |
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399 struct sockaddr *sa; |
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400 u_char buf[NGX_SOCKADDR_STRLEN]; |
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401 |
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402 sa = (struct sockaddr *) ls->sockaddr; |
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403 |
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404 if (sa->sa_family == AF_INET6) { |
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405 |
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406 if (ngx_strcmp(&value[i].data[10], "n") == 0) { |
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407 ls->ipv6only = 1; |
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408 |
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409 } else if (ngx_strcmp(&value[i].data[10], "ff") == 0) { |
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410 ls->ipv6only = 2; |
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411 |
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412 } else { |
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413 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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414 "invalid ipv6only flags \"%s\"", |
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415 &value[i].data[9]); |
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416 return NGX_CONF_ERROR; |
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417 } |
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418 |
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419 ls->bind = 1; |
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420 |
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421 } else { |
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422 len = ngx_sock_ntop(sa, buf, NGX_SOCKADDR_STRLEN, 1); |
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423 |
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424 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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425 "ipv6only is not supported " |
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426 "on addr \"%*s\", ignored", len, buf); |
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427 } |
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428 |
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429 continue; |
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430 #else |
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431 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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432 "bind ipv6only is not supported " |
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433 "on this platform"); |
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434 return NGX_CONF_ERROR; |
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435 #endif |
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436 } |
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437 |
| 2224 | 438 if (ngx_strcmp(value[i].data, "ssl") == 0) { |
| 439 #if (NGX_MAIL_SSL) | |
| 2798 | 440 ls->ssl = 1; |
| 2224 | 441 continue; |
| 442 #else | |
| 443 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 444 "the \"ssl\" parameter requires " | |
| 445 "ngx_mail_ssl_module"); | |
| 446 return NGX_CONF_ERROR; | |
| 447 #endif | |
| 448 } | |
| 449 | |
| 450 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 451 "the invalid \"%V\" parameter", &value[i]); | |
| 452 return NGX_CONF_ERROR; | |
| 641 | 453 } |
| 521 | 454 |
| 2224 | 455 return NGX_CONF_OK; |
| 521 | 456 } |
| 527 | 457 |
| 458 | |
| 459 static char * | |
|
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460 ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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461 { |
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462 ngx_mail_core_srv_conf_t *cscf = conf; |
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463 |
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464 ngx_str_t *value; |
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465 ngx_uint_t m; |
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466 ngx_mail_module_t *module; |
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467 |
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468 value = cf->args->elts; |
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469 |
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470 for (m = 0; ngx_modules[m]; m++) { |
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471 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
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472 continue; |
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473 } |
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474 |
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475 module = ngx_modules[m]->ctx; |
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476 |
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477 if (module->protocol |
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478 && ngx_strcmp(module->protocol->name.data, value[1].data) == 0) |
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479 { |
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480 cscf->protocol = module->protocol; |
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481 |
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482 return NGX_CONF_OK; |
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483 } |
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484 } |
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485 |
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486 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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487 "unknown protocol \"%V\"", &value[1]); |
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488 return NGX_CONF_ERROR; |
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489 } |
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490 |
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491 |
|
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492 static char * |
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493 ngx_mail_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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494 { |
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495 ngx_mail_core_srv_conf_t *cscf = conf; |
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496 |
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497 ngx_url_t u; |
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498 ngx_str_t *value; |
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499 |
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500 value = cf->args->elts; |
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501 |
| 1918 | 502 if (cscf->resolver != NGX_CONF_UNSET_PTR) { |
| 503 return "is duplicate"; | |
| 504 } | |
| 505 | |
|
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506 if (ngx_strcmp(value[1].data, "off") == 0) { |
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507 cscf->resolver = NULL; |
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508 return NGX_CONF_OK; |
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509 } |
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510 |
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511 ngx_memzero(&u, sizeof(ngx_url_t)); |
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512 |
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513 u.host = value[1]; |
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514 u.port = 53; |
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515 |
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516 if (ngx_inet_resolve_host(cf->pool, &u) != NGX_OK) { |
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517 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%V: %s", &u.host, u.err); |
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518 return NGX_CONF_ERROR; |
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519 } |
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520 |
|
1913
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521 cscf->resolver = ngx_resolver_create(cf, &u.addrs[0]); |
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522 if (cscf->resolver == NULL) { |
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523 return NGX_CONF_OK; |
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524 } |
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525 |
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526 return NGX_CONF_OK; |
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527 } |
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528 |
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529 |
|
1487
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|
530 char * |
|
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|
531 ngx_mail_capabilities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 527 | 532 { |
| 533 char *p = conf; | |
| 534 | |
| 535 ngx_str_t *c, *value; | |
| 536 ngx_uint_t i; | |
| 537 ngx_array_t *a; | |
| 538 | |
| 539 a = (ngx_array_t *) (p + cmd->offset); | |
| 540 | |
| 541 value = cf->args->elts; | |
| 542 | |
| 543 for (i = 1; i < cf->args->nelts; i++) { | |
| 544 c = ngx_array_push(a); | |
| 545 if (c == NULL) { | |
| 546 return NGX_CONF_ERROR; | |
| 547 } | |
| 548 | |
| 549 *c = value[i]; | |
| 550 } | |
| 551 | |
| 552 return NGX_CONF_OK; | |
| 553 } |