Mercurial > hg > nginx
annotate src/mail/ngx_mail_core_module.c @ 4437:3a1507f48686 stable-1.0
Merge of r4372, r4373, r4374:
SCGI fixes:
*) Fixed incorrect use of r->http_version in scgi module.
The r->http_version is a version of client's request, and modules
must not set it unless they are really willing to downgrade protocol
version used for a response (i.e. to HTTP/0.9 if no response headers
are available). In neither case r->http_version may be upgraded.
The former code downgraded response from HTTP/1.1 to HTTP/1.0 for no
reason, causing various problems (see ticket #66). It was also
possible that HTTP/0.9 requests were upgraded to HTTP/1.0.
*) Removed duplicate function declaration.
*) Removed error if there is no Status header.
The SCGI specification doesn't specify format of the response, and
assuming CGI specs should be used there is no reason to complain.
RFC 3875 explicitly states that "A Status header field is optional,
and status 200 'OK' is assumed if it is omitted".
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Sun, 05 Feb 2012 13:53:50 +0000 |
| parents | c7d57b539248 |
| children | 016352c19049 4919fb357a5d |
| rev | line source |
|---|---|
| 521 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 #include <ngx_event.h> | |
| 1136 | 10 #include <ngx_mail.h> |
| 521 | 11 |
| 12 | |
| 1136 | 13 static void *ngx_mail_core_create_main_conf(ngx_conf_t *cf); |
| 14 static void *ngx_mail_core_create_srv_conf(ngx_conf_t *cf); | |
| 15 static char *ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent, | |
| 521 | 16 void *child); |
| 1136 | 17 static char *ngx_mail_core_server(ngx_conf_t *cf, ngx_command_t *cmd, |
| 521 | 18 void *conf); |
| 1136 | 19 static char *ngx_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, |
| 521 | 20 void *conf); |
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21 static char *ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd, |
| 527 | 22 void *conf); |
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23 static char *ngx_mail_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, |
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24 void *conf); |
| 521 | 25 |
| 26 | |
| 1136 | 27 static ngx_command_t ngx_mail_core_commands[] = { |
| 521 | 28 |
| 29 { ngx_string("server"), | |
| 1136 | 30 NGX_MAIL_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, |
| 31 ngx_mail_core_server, | |
| 521 | 32 0, |
| 33 0, | |
| 34 NULL }, | |
| 35 | |
| 36 { ngx_string("listen"), | |
| 1136 | 37 NGX_MAIL_SRV_CONF|NGX_CONF_TAKE12, |
| 38 ngx_mail_core_listen, | |
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39 NGX_MAIL_SRV_CONF_OFFSET, |
| 521 | 40 0, |
| 41 NULL }, | |
| 42 | |
| 43 { ngx_string("protocol"), | |
| 1136 | 44 NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
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45 ngx_mail_core_protocol, |
| 1136 | 46 NGX_MAIL_SRV_CONF_OFFSET, |
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47 0, |
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48 NULL }, |
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49 |
| 587 | 50 { ngx_string("so_keepalive"), |
| 1136 | 51 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
| 587 | 52 ngx_conf_set_flag_slot, |
| 1136 | 53 NGX_MAIL_SRV_CONF_OFFSET, |
| 54 offsetof(ngx_mail_core_srv_conf_t, so_keepalive), | |
| 587 | 55 NULL }, |
| 56 | |
| 521 | 57 { ngx_string("timeout"), |
| 1136 | 58 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
| 521 | 59 ngx_conf_set_msec_slot, |
| 1136 | 60 NGX_MAIL_SRV_CONF_OFFSET, |
| 61 offsetof(ngx_mail_core_srv_conf_t, timeout), | |
| 521 | 62 NULL }, |
| 63 | |
| 800 | 64 { ngx_string("server_name"), |
| 1136 | 65 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
| 800 | 66 ngx_conf_set_str_slot, |
| 1136 | 67 NGX_MAIL_SRV_CONF_OFFSET, |
| 68 offsetof(ngx_mail_core_srv_conf_t, server_name), | |
| 800 | 69 NULL }, |
| 70 | |
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71 { ngx_string("resolver"), |
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72 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
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73 ngx_mail_core_resolver, |
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74 NGX_MAIL_SRV_CONF_OFFSET, |
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75 0, |
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76 NULL }, |
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77 |
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78 { ngx_string("resolver_timeout"), |
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79 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
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80 ngx_conf_set_msec_slot, |
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81 NGX_MAIL_SRV_CONF_OFFSET, |
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82 offsetof(ngx_mail_core_srv_conf_t, resolver_timeout), |
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83 NULL }, |
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84 |
| 521 | 85 ngx_null_command |
| 86 }; | |
| 87 | |
| 88 | |
| 1136 | 89 static ngx_mail_module_t ngx_mail_core_module_ctx = { |
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90 NULL, /* protocol */ |
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91 |
| 1136 | 92 ngx_mail_core_create_main_conf, /* create main configuration */ |
| 521 | 93 NULL, /* init main configuration */ |
| 94 | |
| 1136 | 95 ngx_mail_core_create_srv_conf, /* create server configuration */ |
| 96 ngx_mail_core_merge_srv_conf /* merge server configuration */ | |
| 521 | 97 }; |
| 98 | |
| 99 | |
| 1136 | 100 ngx_module_t ngx_mail_core_module = { |
| 521 | 101 NGX_MODULE_V1, |
| 1136 | 102 &ngx_mail_core_module_ctx, /* module context */ |
| 103 ngx_mail_core_commands, /* module directives */ | |
| 104 NGX_MAIL_MODULE, /* module type */ | |
| 541 | 105 NULL, /* init master */ |
| 521 | 106 NULL, /* init module */ |
| 541 | 107 NULL, /* init process */ |
| 108 NULL, /* init thread */ | |
| 109 NULL, /* exit thread */ | |
| 110 NULL, /* exit process */ | |
| 111 NULL, /* exit master */ | |
| 112 NGX_MODULE_V1_PADDING | |
| 521 | 113 }; |
| 114 | |
| 115 | |
| 116 static void * | |
| 1136 | 117 ngx_mail_core_create_main_conf(ngx_conf_t *cf) |
| 577 | 118 { |
| 1136 | 119 ngx_mail_core_main_conf_t *cmcf; |
| 521 | 120 |
| 1136 | 121 cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_main_conf_t)); |
| 521 | 122 if (cmcf == NULL) { |
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123 return NULL; |
| 521 | 124 } |
| 125 | |
| 126 if (ngx_array_init(&cmcf->servers, cf->pool, 4, | |
| 1136 | 127 sizeof(ngx_mail_core_srv_conf_t *)) |
| 641 | 128 != NGX_OK) |
| 129 { | |
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130 return NULL; |
| 641 | 131 } |
| 132 | |
| 1136 | 133 if (ngx_array_init(&cmcf->listen, cf->pool, 4, sizeof(ngx_mail_listen_t)) |
| 641 | 134 != NGX_OK) |
| 521 | 135 { |
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136 return NULL; |
| 521 | 137 } |
| 138 | |
| 139 return cmcf; | |
| 140 } | |
| 141 | |
| 142 | |
| 143 static void * | |
| 1136 | 144 ngx_mail_core_create_srv_conf(ngx_conf_t *cf) |
| 577 | 145 { |
| 1136 | 146 ngx_mail_core_srv_conf_t *cscf; |
| 577 | 147 |
| 1136 | 148 cscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_srv_conf_t)); |
| 521 | 149 if (cscf == NULL) { |
| 527 | 150 return NULL; |
| 521 | 151 } |
| 152 | |
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153 /* |
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154 * set by ngx_pcalloc(): |
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155 * |
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156 * cscf->protocol = NULL; |
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157 */ |
| 521 | 158 |
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159 cscf->timeout = NGX_CONF_UNSET_MSEC; |
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160 cscf->resolver_timeout = NGX_CONF_UNSET_MSEC; |
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161 cscf->so_keepalive = NGX_CONF_UNSET; |
| 1136 | 162 |
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163 cscf->resolver = NGX_CONF_UNSET_PTR; |
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164 |
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165 cscf->file_name = cf->conf_file->file.name.data; |
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166 cscf->line = cf->conf_file->line; |
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167 |
| 521 | 168 return cscf; |
| 169 } | |
| 170 | |
| 171 | |
| 172 static char * | |
| 1136 | 173 ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
| 521 | 174 { |
| 1136 | 175 ngx_mail_core_srv_conf_t *prev = parent; |
| 176 ngx_mail_core_srv_conf_t *conf = child; | |
| 521 | 177 |
| 178 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000); | |
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179 ngx_conf_merge_msec_value(conf->resolver_timeout, prev->resolver_timeout, |
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180 30000); |
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181 |
| 587 | 182 ngx_conf_merge_value(conf->so_keepalive, prev->so_keepalive, 0); |
| 521 | 183 |
| 800 | 184 |
| 185 ngx_conf_merge_str_value(conf->server_name, prev->server_name, ""); | |
| 186 | |
| 187 if (conf->server_name.len == 0) { | |
| 2011 | 188 conf->server_name = cf->cycle->hostname; |
| 800 | 189 } |
| 190 | |
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191 if (conf->protocol == NULL) { |
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192 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
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193 "unknown mail protocol for server in %s:%ui", |
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194 conf->file_name, conf->line); |
| 583 | 195 return NGX_CONF_ERROR; |
| 196 } | |
| 197 | |
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198 ngx_conf_merge_ptr_value(conf->resolver, prev->resolver, NULL); |
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199 |
| 521 | 200 return NGX_CONF_OK; |
| 201 } | |
| 202 | |
| 203 | |
| 204 static char * | |
| 1136 | 205 ngx_mail_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 521 | 206 { |
| 207 char *rv; | |
| 208 void *mconf; | |
| 209 ngx_uint_t m; | |
| 210 ngx_conf_t pcf; | |
| 1136 | 211 ngx_mail_module_t *module; |
| 212 ngx_mail_conf_ctx_t *ctx, *mail_ctx; | |
| 213 ngx_mail_core_srv_conf_t *cscf, **cscfp; | |
| 214 ngx_mail_core_main_conf_t *cmcf; | |
| 521 | 215 |
| 1136 | 216 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t)); |
| 521 | 217 if (ctx == NULL) { |
| 218 return NGX_CONF_ERROR; | |
| 219 } | |
| 220 | |
| 1136 | 221 mail_ctx = cf->ctx; |
| 222 ctx->main_conf = mail_ctx->main_conf; | |
| 577 | 223 |
| 521 | 224 /* the server{}'s srv_conf */ |
| 225 | |
| 1136 | 226 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_max_module); |
| 521 | 227 if (ctx->srv_conf == NULL) { |
| 228 return NGX_CONF_ERROR; | |
| 229 } | |
| 230 | |
| 231 for (m = 0; ngx_modules[m]; m++) { | |
| 1136 | 232 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
| 521 | 233 continue; |
| 234 } | |
| 235 | |
| 236 module = ngx_modules[m]->ctx; | |
| 237 | |
| 238 if (module->create_srv_conf) { | |
| 239 mconf = module->create_srv_conf(cf); | |
| 240 if (mconf == NULL) { | |
| 241 return NGX_CONF_ERROR; | |
| 242 } | |
| 243 | |
| 244 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf; | |
| 245 } | |
| 246 } | |
| 247 | |
| 248 /* the server configuration context */ | |
| 249 | |
| 1136 | 250 cscf = ctx->srv_conf[ngx_mail_core_module.ctx_index]; |
| 521 | 251 cscf->ctx = ctx; |
| 252 | |
| 1136 | 253 cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index]; |
| 521 | 254 |
| 255 cscfp = ngx_array_push(&cmcf->servers); | |
| 256 if (cscfp == NULL) { | |
| 257 return NGX_CONF_ERROR; | |
| 258 } | |
| 259 | |
| 260 *cscfp = cscf; | |
| 261 | |
| 262 | |
| 263 /* parse inside server{} */ | |
| 264 | |
| 265 pcf = *cf; | |
| 266 cf->ctx = ctx; | |
| 1136 | 267 cf->cmd_type = NGX_MAIL_SRV_CONF; |
| 521 | 268 |
| 269 rv = ngx_conf_parse(cf, NULL); | |
| 270 | |
| 271 *cf = pcf; | |
| 272 | |
| 273 return rv; | |
| 274 } | |
| 275 | |
| 276 | |
| 277 static char * | |
| 1136 | 278 ngx_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 521 | 279 { |
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280 ngx_mail_core_srv_conf_t *cscf = conf; |
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281 |
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282 size_t len, off; |
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283 in_port_t port; |
| 641 | 284 ngx_str_t *value; |
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285 ngx_url_t u; |
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286 ngx_uint_t i, m; |
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287 struct sockaddr *sa; |
| 2798 | 288 ngx_mail_listen_t *ls; |
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289 ngx_mail_module_t *module; |
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290 struct sockaddr_in *sin; |
| 1136 | 291 ngx_mail_core_main_conf_t *cmcf; |
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292 #if (NGX_HAVE_INET6) |
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293 struct sockaddr_in6 *sin6; |
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294 #endif |
| 521 | 295 |
| 296 value = cf->args->elts; | |
| 297 | |
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298 ngx_memzero(&u, sizeof(ngx_url_t)); |
| 521 | 299 |
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300 u.url = value[1]; |
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301 u.listen = 1; |
| 619 | 302 |
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303 if (ngx_parse_url(cf->pool, &u) != NGX_OK) { |
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304 if (u.err) { |
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305 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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306 "%s in \"%V\" of the \"listen\" directive", |
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307 u.err, &u.url); |
| 521 | 308 } |
| 309 | |
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310 return NGX_CONF_ERROR; |
| 521 | 311 } |
| 312 | |
| 1136 | 313 cmcf = ngx_mail_conf_get_module_main_conf(cf, ngx_mail_core_module); |
| 521 | 314 |
| 2798 | 315 ls = cmcf->listen.elts; |
| 641 | 316 |
| 317 for (i = 0; i < cmcf->listen.nelts; i++) { | |
| 318 | |
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319 sa = (struct sockaddr *) ls[i].sockaddr; |
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320 |
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321 if (sa->sa_family != u.family) { |
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322 continue; |
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323 } |
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324 |
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325 switch (sa->sa_family) { |
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326 |
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327 #if (NGX_HAVE_INET6) |
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328 case AF_INET6: |
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329 off = offsetof(struct sockaddr_in6, sin6_addr); |
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330 len = 16; |
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331 sin6 = (struct sockaddr_in6 *) sa; |
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332 port = sin6->sin6_port; |
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333 break; |
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334 #endif |
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335 |
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336 default: /* AF_INET */ |
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337 off = offsetof(struct sockaddr_in, sin_addr); |
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338 len = 4; |
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339 sin = (struct sockaddr_in *) sa; |
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340 port = sin->sin_port; |
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341 break; |
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342 } |
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343 |
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344 if (ngx_memcmp(ls[i].sockaddr + off, u.sockaddr + off, len) != 0) { |
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345 continue; |
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346 } |
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347 |
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348 if (port != u.port) { |
| 641 | 349 continue; |
| 350 } | |
| 351 | |
| 352 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
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353 "duplicate \"%V\" address and port pair", &u.url); |
| 577 | 354 return NGX_CONF_ERROR; |
| 521 | 355 } |
| 356 | |
| 2798 | 357 ls = ngx_array_push(&cmcf->listen); |
| 358 if (ls == NULL) { | |
| 641 | 359 return NGX_CONF_ERROR; |
| 360 } | |
| 563 | 361 |
| 2798 | 362 ngx_memzero(ls, sizeof(ngx_mail_listen_t)); |
| 641 | 363 |
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364 ngx_memcpy(ls->sockaddr, u.sockaddr, u.socklen); |
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365 |
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366 ls->socklen = u.socklen; |
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367 ls->wildcard = u.wildcard; |
| 2798 | 368 ls->ctx = cf->ctx; |
| 521 | 369 |
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370 for (m = 0; ngx_modules[m]; m++) { |
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371 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
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372 continue; |
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373 } |
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374 |
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375 module = ngx_modules[m]->ctx; |
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376 |
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377 if (module->protocol == NULL) { |
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378 continue; |
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379 } |
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380 |
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381 for (i = 0; module->protocol->port[i]; i++) { |
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382 if (module->protocol->port[i] == u.port) { |
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383 cscf->protocol = module->protocol; |
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384 break; |
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385 } |
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386 } |
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387 } |
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388 |
| 2224 | 389 for (i = 2; i < cf->args->nelts; i++) { |
| 390 | |
| 391 if (ngx_strcmp(value[i].data, "bind") == 0) { | |
| 2798 | 392 ls->bind = 1; |
| 2224 | 393 continue; |
| 394 } | |
| 395 | |
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396 if (ngx_strncmp(value[i].data, "ipv6only=o", 10) == 0) { |
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397 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) |
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398 struct sockaddr *sa; |
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399 u_char buf[NGX_SOCKADDR_STRLEN]; |
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400 |
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401 sa = (struct sockaddr *) ls->sockaddr; |
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402 |
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403 if (sa->sa_family == AF_INET6) { |
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404 |
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405 if (ngx_strcmp(&value[i].data[10], "n") == 0) { |
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406 ls->ipv6only = 1; |
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407 |
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408 } else if (ngx_strcmp(&value[i].data[10], "ff") == 0) { |
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409 ls->ipv6only = 2; |
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410 |
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411 } else { |
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412 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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413 "invalid ipv6only flags \"%s\"", |
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414 &value[i].data[9]); |
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415 return NGX_CONF_ERROR; |
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416 } |
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417 |
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418 ls->bind = 1; |
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419 |
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420 } else { |
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421 len = ngx_sock_ntop(sa, buf, NGX_SOCKADDR_STRLEN, 1); |
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422 |
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423 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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424 "ipv6only is not supported " |
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425 "on addr \"%*s\", ignored", len, buf); |
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426 } |
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427 |
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428 continue; |
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429 #else |
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430 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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431 "bind ipv6only is not supported " |
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432 "on this platform"); |
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433 return NGX_CONF_ERROR; |
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434 #endif |
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435 } |
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436 |
| 2224 | 437 if (ngx_strcmp(value[i].data, "ssl") == 0) { |
| 438 #if (NGX_MAIL_SSL) | |
| 2798 | 439 ls->ssl = 1; |
| 2224 | 440 continue; |
| 441 #else | |
| 442 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 443 "the \"ssl\" parameter requires " | |
| 444 "ngx_mail_ssl_module"); | |
| 445 return NGX_CONF_ERROR; | |
| 446 #endif | |
| 447 } | |
| 448 | |
| 449 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 450 "the invalid \"%V\" parameter", &value[i]); | |
| 451 return NGX_CONF_ERROR; | |
| 641 | 452 } |
| 521 | 453 |
| 2224 | 454 return NGX_CONF_OK; |
| 521 | 455 } |
| 527 | 456 |
| 457 | |
| 458 static char * | |
|
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459 ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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460 { |
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461 ngx_mail_core_srv_conf_t *cscf = conf; |
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462 |
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463 ngx_str_t *value; |
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464 ngx_uint_t m; |
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465 ngx_mail_module_t *module; |
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466 |
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467 value = cf->args->elts; |
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468 |
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469 for (m = 0; ngx_modules[m]; m++) { |
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470 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
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471 continue; |
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472 } |
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473 |
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474 module = ngx_modules[m]->ctx; |
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475 |
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476 if (module->protocol |
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477 && ngx_strcmp(module->protocol->name.data, value[1].data) == 0) |
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478 { |
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479 cscf->protocol = module->protocol; |
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480 |
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481 return NGX_CONF_OK; |
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482 } |
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483 } |
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484 |
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485 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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486 "unknown protocol \"%V\"", &value[1]); |
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487 return NGX_CONF_ERROR; |
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488 } |
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489 |
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490 |
|
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491 static char * |
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492 ngx_mail_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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493 { |
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494 ngx_mail_core_srv_conf_t *cscf = conf; |
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495 |
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496 ngx_url_t u; |
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497 ngx_str_t *value; |
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498 |
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499 value = cf->args->elts; |
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500 |
| 1918 | 501 if (cscf->resolver != NGX_CONF_UNSET_PTR) { |
| 502 return "is duplicate"; | |
| 503 } | |
| 504 | |
|
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505 if (ngx_strcmp(value[1].data, "off") == 0) { |
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506 cscf->resolver = NULL; |
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507 return NGX_CONF_OK; |
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508 } |
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509 |
|
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510 ngx_memzero(&u, sizeof(ngx_url_t)); |
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511 |
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512 u.host = value[1]; |
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513 u.port = 53; |
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514 |
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515 if (ngx_inet_resolve_host(cf->pool, &u) != NGX_OK) { |
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516 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%V: %s", &u.host, u.err); |
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517 return NGX_CONF_ERROR; |
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518 } |
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519 |
|
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520 cscf->resolver = ngx_resolver_create(cf, &u.addrs[0]); |
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521 if (cscf->resolver == NULL) { |
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522 return NGX_CONF_OK; |
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523 } |
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524 |
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525 return NGX_CONF_OK; |
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526 } |
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527 |
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528 |
|
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529 char * |
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530 ngx_mail_capabilities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 527 | 531 { |
| 532 char *p = conf; | |
| 533 | |
| 534 ngx_str_t *c, *value; | |
| 535 ngx_uint_t i; | |
| 536 ngx_array_t *a; | |
| 537 | |
| 538 a = (ngx_array_t *) (p + cmd->offset); | |
| 539 | |
| 540 value = cf->args->elts; | |
| 541 | |
| 542 for (i = 1; i < cf->args->nelts; i++) { | |
| 543 c = ngx_array_push(a); | |
| 544 if (c == NULL) { | |
| 545 return NGX_CONF_ERROR; | |
| 546 } | |
| 547 | |
| 548 *c = value[i]; | |
| 549 } | |
| 550 | |
| 551 return NGX_CONF_OK; | |
| 552 } |