Mercurial > hg > nginx
annotate src/mail/ngx_mail.c @ 9331:dbf76fdd109f default tip
release-1.27.4 tag
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 03 Sep 2024 13:11:25 +0300 |
parents | 12ea1de7d87c |
children |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
1136 | 11 #include <ngx_mail.h> |
417
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12 |
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13 |
1136 | 14 static char *ngx_mail_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
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15 static ngx_int_t ngx_mail_add_ports(ngx_conf_t *cf, ngx_array_t *ports, |
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16 ngx_mail_listen_t *listen); |
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17 static char *ngx_mail_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports); |
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18 static ngx_int_t ngx_mail_add_addrs(ngx_conf_t *cf, ngx_mail_port_t *mport, |
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19 ngx_mail_conf_addr_t *addr); |
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20 #if (NGX_HAVE_INET6) |
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21 static ngx_int_t ngx_mail_add_addrs6(ngx_conf_t *cf, ngx_mail_port_t *mport, |
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22 ngx_mail_conf_addr_t *addr); |
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23 #endif |
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24 static ngx_int_t ngx_mail_cmp_conf_addrs(const void *one, const void *two); |
413
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25 |
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26 |
1136 | 27 ngx_uint_t ngx_mail_max_module; |
521 | 28 |
29 | |
1136 | 30 static ngx_command_t ngx_mail_commands[] = { |
31 | |
32 { ngx_string("mail"), | |
33 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, | |
34 ngx_mail_block, | |
35 0, | |
36 0, | |
37 NULL }, | |
413
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38 |
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39 ngx_null_command |
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40 }; |
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41 |
577 | 42 |
1136 | 43 static ngx_core_module_t ngx_mail_module_ctx = { |
44 ngx_string("mail"), | |
413
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45 NULL, |
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46 NULL |
577 | 47 }; |
413
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48 |
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49 |
1136 | 50 ngx_module_t ngx_mail_module = { |
509 | 51 NGX_MODULE_V1, |
1136 | 52 &ngx_mail_module_ctx, /* module context */ |
53 ngx_mail_commands, /* module directives */ | |
413
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54 NGX_CORE_MODULE, /* module type */ |
541 | 55 NULL, /* init master */ |
413
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56 NULL, /* init module */ |
541 | 57 NULL, /* init process */ |
58 NULL, /* init thread */ | |
59 NULL, /* exit thread */ | |
60 NULL, /* exit process */ | |
61 NULL, /* exit master */ | |
62 NGX_MODULE_V1_PADDING | |
413
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63 }; |
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64 |
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65 |
521 | 66 static char * |
1136 | 67 ngx_mail_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
417
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68 { |
521 | 69 char *rv; |
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70 ngx_uint_t i, m, mi, s; |
521 | 71 ngx_conf_t pcf; |
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72 ngx_array_t ports; |
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73 ngx_mail_listen_t *listen; |
1136 | 74 ngx_mail_module_t *module; |
75 ngx_mail_conf_ctx_t *ctx; | |
76 ngx_mail_core_srv_conf_t **cscfp; | |
77 ngx_mail_core_main_conf_t *cmcf; | |
521 | 78 |
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79 if (*(ngx_mail_conf_ctx_t **) conf) { |
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80 return "is duplicate"; |
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81 } |
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82 |
1136 | 83 /* the main mail context */ |
84 | |
85 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t)); | |
521 | 86 if (ctx == NULL) { |
87 return NGX_CONF_ERROR; | |
88 } | |
89 | |
1136 | 90 *(ngx_mail_conf_ctx_t **) conf = ctx; |
521 | 91 |
5978 | 92 /* count the number of the mail modules and set up their indices */ |
417
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93 |
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94 ngx_mail_max_module = ngx_count_modules(cf->cycle, NGX_MAIL_MODULE); |
521 | 95 |
96 | |
1136 | 97 /* the mail main_conf context, it is the same in the all mail contexts */ |
417
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98 |
521 | 99 ctx->main_conf = ngx_pcalloc(cf->pool, |
1136 | 100 sizeof(void *) * ngx_mail_max_module); |
521 | 101 if (ctx->main_conf == NULL) { |
102 return NGX_CONF_ERROR; | |
103 } | |
104 | |
105 | |
106 /* | |
1136 | 107 * the mail null srv_conf context, it is used to merge |
521 | 108 * the server{}s' srv_conf's |
109 */ | |
110 | |
1136 | 111 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_max_module); |
521 | 112 if (ctx->srv_conf == NULL) { |
417
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113 return NGX_CONF_ERROR; |
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114 } |
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115 |
521 | 116 |
117 /* | |
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118 * create the main_conf's and the null srv_conf's of the all mail modules |
521 | 119 */ |
120 | |
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121 for (m = 0; cf->cycle->modules[m]; m++) { |
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122 if (cf->cycle->modules[m]->type != NGX_MAIL_MODULE) { |
521 | 123 continue; |
124 } | |
125 | |
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126 module = cf->cycle->modules[m]->ctx; |
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127 mi = cf->cycle->modules[m]->ctx_index; |
521 | 128 |
129 if (module->create_main_conf) { | |
130 ctx->main_conf[mi] = module->create_main_conf(cf); | |
131 if (ctx->main_conf[mi] == NULL) { | |
132 return NGX_CONF_ERROR; | |
133 } | |
134 } | |
135 | |
136 if (module->create_srv_conf) { | |
137 ctx->srv_conf[mi] = module->create_srv_conf(cf); | |
138 if (ctx->srv_conf[mi] == NULL) { | |
139 return NGX_CONF_ERROR; | |
140 } | |
141 } | |
142 } | |
143 | |
144 | |
1136 | 145 /* parse inside the mail{} block */ |
521 | 146 |
147 pcf = *cf; | |
148 cf->ctx = ctx; | |
149 | |
1136 | 150 cf->module_type = NGX_MAIL_MODULE; |
151 cf->cmd_type = NGX_MAIL_MAIN_CONF; | |
521 | 152 rv = ngx_conf_parse(cf, NULL); |
153 | |
154 if (rv != NGX_CONF_OK) { | |
155 *cf = pcf; | |
156 return rv; | |
157 } | |
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158 |
521 | 159 |
1136 | 160 /* init mail{} main_conf's, merge the server{}s' srv_conf's */ |
521 | 161 |
1136 | 162 cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index]; |
521 | 163 cscfp = cmcf->servers.elts; |
164 | |
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165 for (m = 0; cf->cycle->modules[m]; m++) { |
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166 if (cf->cycle->modules[m]->type != NGX_MAIL_MODULE) { |
521 | 167 continue; |
168 } | |
169 | |
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170 module = cf->cycle->modules[m]->ctx; |
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171 mi = cf->cycle->modules[m]->ctx_index; |
521 | 172 |
1136 | 173 /* init mail{} main_conf's */ |
521 | 174 |
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175 cf->ctx = ctx; |
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176 |
521 | 177 if (module->init_main_conf) { |
577 | 178 rv = module->init_main_conf(cf, ctx->main_conf[mi]); |
521 | 179 if (rv != NGX_CONF_OK) { |
180 *cf = pcf; | |
181 return rv; | |
182 } | |
183 } | |
184 | |
185 for (s = 0; s < cmcf->servers.nelts; s++) { | |
577 | 186 |
521 | 187 /* merge the server{}s' srv_conf's */ |
577 | 188 |
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189 cf->ctx = cscfp[s]->ctx; |
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190 |
521 | 191 if (module->merge_srv_conf) { |
192 rv = module->merge_srv_conf(cf, | |
193 ctx->srv_conf[mi], | |
194 cscfp[s]->ctx->srv_conf[mi]); | |
195 if (rv != NGX_CONF_OK) { | |
196 *cf = pcf; | |
197 return rv; | |
198 } | |
199 } | |
200 } | |
201 } | |
202 | |
577 | 203 *cf = pcf; |
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204 |
641 | 205 |
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206 if (ngx_array_init(&ports, cf->temp_pool, 4, sizeof(ngx_mail_conf_port_t)) |
641 | 207 != NGX_OK) |
208 { | |
209 return NGX_CONF_ERROR; | |
210 } | |
211 | |
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212 listen = cmcf->listen.elts; |
641 | 213 |
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214 for (i = 0; i < cmcf->listen.nelts; i++) { |
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215 if (ngx_mail_add_ports(cf, &ports, &listen[i]) != NGX_OK) { |
641 | 216 return NGX_CONF_ERROR; |
217 } | |
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218 } |
641 | 219 |
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220 return ngx_mail_optimize_servers(cf, &ports); |
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221 } |
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222 |
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223 |
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224 static ngx_int_t |
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225 ngx_mail_add_ports(ngx_conf_t *cf, ngx_array_t *ports, |
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226 ngx_mail_listen_t *listen) |
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227 { |
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228 in_port_t p; |
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229 ngx_uint_t i; |
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230 struct sockaddr *sa; |
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231 ngx_mail_conf_port_t *port; |
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232 ngx_mail_conf_addr_t *addr; |
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233 |
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234 sa = listen->sockaddr; |
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235 p = ngx_inet_get_port(sa); |
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236 |
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237 port = ports->elts; |
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238 for (i = 0; i < ports->nelts; i++) { |
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239 if (p == port[i].port && sa->sa_family == port[i].family) { |
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240 |
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241 /* a port is already in the port list */ |
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242 |
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243 port = &port[i]; |
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244 goto found; |
641 | 245 } |
246 } | |
247 | |
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248 /* add a port to the port list */ |
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249 |
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250 port = ngx_array_push(ports); |
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251 if (port == NULL) { |
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252 return NGX_ERROR; |
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253 } |
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254 |
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255 port->family = sa->sa_family; |
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256 port->port = p; |
641 | 257 |
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258 if (ngx_array_init(&port->addrs, cf->temp_pool, 2, |
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259 sizeof(ngx_mail_conf_addr_t)) |
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260 != NGX_OK) |
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261 { |
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262 return NGX_ERROR; |
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263 } |
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264 |
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265 found: |
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266 |
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267 addr = ngx_array_push(&port->addrs); |
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268 if (addr == NULL) { |
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269 return NGX_ERROR; |
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270 } |
641 | 271 |
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272 addr->opt = *listen; |
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273 |
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274 return NGX_OK; |
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275 } |
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276 |
641 | 277 |
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278 static char * |
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279 ngx_mail_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports) |
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280 { |
6130 | 281 ngx_uint_t i, p, last, bind_wildcard; |
282 ngx_listening_t *ls; | |
283 ngx_mail_port_t *mport; | |
284 ngx_mail_conf_port_t *port; | |
285 ngx_mail_conf_addr_t *addr; | |
286 ngx_mail_core_srv_conf_t *cscf; | |
641 | 287 |
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288 port = ports->elts; |
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289 for (p = 0; p < ports->nelts; p++) { |
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290 |
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291 ngx_sort(port[p].addrs.elts, (size_t) port[p].addrs.nelts, |
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292 sizeof(ngx_mail_conf_addr_t), ngx_mail_cmp_conf_addrs); |
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293 |
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294 addr = port[p].addrs.elts; |
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295 last = port[p].addrs.nelts; |
641 | 296 |
297 /* | |
298 * if there is the binding to the "*:port" then we need to bind() | |
299 * to the "*:port" only and ignore the other bindings | |
300 */ | |
301 | |
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302 if (addr[last - 1].opt.wildcard) { |
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303 addr[last - 1].opt.bind = 1; |
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304 bind_wildcard = 1; |
641 | 305 |
306 } else { | |
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307 bind_wildcard = 0; |
641 | 308 } |
309 | |
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310 i = 0; |
641 | 311 |
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312 while (i < last) { |
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313 |
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314 if (bind_wildcard && !addr[i].opt.bind) { |
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315 i++; |
641 | 316 continue; |
317 } | |
318 | |
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319 ls = ngx_create_listening(cf, addr[i].opt.sockaddr, |
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320 addr[i].opt.socklen); |
641 | 321 if (ls == NULL) { |
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322 return NGX_CONF_ERROR; |
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323 } |
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324 |
641 | 325 ls->addr_ntop = 1; |
1136 | 326 ls->handler = ngx_mail_init_connection; |
641 | 327 ls->pool_size = 256; |
328 | |
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329 cscf = addr->opt.ctx->srv_conf[ngx_mail_core_module.ctx_index]; |
6130 | 330 |
331 ls->logp = cscf->error_log; | |
641 | 332 ls->log.data = &ls->addr_text; |
333 ls->log.handler = ngx_accept_log_error; | |
334 | |
6173 | 335 ls->backlog = addr[i].opt.backlog; |
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336 ls->rcvbuf = addr[i].opt.rcvbuf; |
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337 ls->sndbuf = addr[i].opt.sndbuf; |
6173 | 338 |
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339 ls->keepalive = addr[i].opt.so_keepalive; |
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340 #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
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341 ls->keepidle = addr[i].opt.tcp_keepidle; |
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342 ls->keepintvl = addr[i].opt.tcp_keepintvl; |
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343 ls->keepcnt = addr[i].opt.tcp_keepcnt; |
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344 #endif |
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345 |
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346 #if (NGX_HAVE_INET6) |
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347 ls->ipv6only = addr[i].opt.ipv6only; |
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348 #endif |
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349 |
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350 mport = ngx_palloc(cf->pool, sizeof(ngx_mail_port_t)); |
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351 if (mport == NULL) { |
641 | 352 return NGX_CONF_ERROR; |
353 } | |
354 | |
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355 ls->servers = mport; |
641 | 356 |
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357 mport->naddrs = i + 1; |
641 | 358 |
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359 switch (ls->sockaddr->sa_family) { |
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360 #if (NGX_HAVE_INET6) |
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361 case AF_INET6: |
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362 if (ngx_mail_add_addrs6(cf, mport, addr) != NGX_OK) { |
641 | 363 return NGX_CONF_ERROR; |
364 } | |
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365 break; |
2224 | 366 #endif |
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367 default: /* AF_INET */ |
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368 if (ngx_mail_add_addrs(cf, mport, addr) != NGX_OK) { |
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369 return NGX_CONF_ERROR; |
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370 } |
641 | 371 break; |
372 } | |
373 | |
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374 addr++; |
641 | 375 last--; |
376 } | |
377 } | |
378 | |
417
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379 return NGX_CONF_OK; |
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380 } |
641 | 381 |
382 | |
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383 static ngx_int_t |
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384 ngx_mail_add_addrs(ngx_conf_t *cf, ngx_mail_port_t *mport, |
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385 ngx_mail_conf_addr_t *addr) |
641 | 386 { |
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387 ngx_uint_t i; |
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388 ngx_mail_in_addr_t *addrs; |
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389 struct sockaddr_in *sin; |
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390 |
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391 mport->addrs = ngx_pcalloc(cf->pool, |
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392 mport->naddrs * sizeof(ngx_mail_in_addr_t)); |
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393 if (mport->addrs == NULL) { |
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394 return NGX_ERROR; |
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395 } |
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396 |
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397 addrs = mport->addrs; |
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398 |
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399 for (i = 0; i < mport->naddrs; i++) { |
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400 |
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401 sin = (struct sockaddr_in *) addr[i].opt.sockaddr; |
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402 addrs[i].addr = sin->sin_addr.s_addr; |
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403 |
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404 addrs[i].conf.ctx = addr[i].opt.ctx; |
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405 #if (NGX_MAIL_SSL) |
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406 addrs[i].conf.ssl = addr[i].opt.ssl; |
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407 #endif |
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408 addrs[i].conf.proxy_protocol = addr[i].opt.proxy_protocol; |
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409 addrs[i].conf.addr_text = addr[i].opt.addr_text; |
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410 } |
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411 |
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412 return NGX_OK; |
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413 } |
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414 |
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415 |
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416 #if (NGX_HAVE_INET6) |
641 | 417 |
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418 static ngx_int_t |
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419 ngx_mail_add_addrs6(ngx_conf_t *cf, ngx_mail_port_t *mport, |
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420 ngx_mail_conf_addr_t *addr) |
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421 { |
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422 ngx_uint_t i; |
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423 ngx_mail_in6_addr_t *addrs6; |
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424 struct sockaddr_in6 *sin6; |
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425 |
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426 mport->addrs = ngx_pcalloc(cf->pool, |
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427 mport->naddrs * sizeof(ngx_mail_in6_addr_t)); |
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428 if (mport->addrs == NULL) { |
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429 return NGX_ERROR; |
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430 } |
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431 |
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432 addrs6 = mport->addrs; |
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433 |
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434 for (i = 0; i < mport->naddrs; i++) { |
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435 |
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436 sin6 = (struct sockaddr_in6 *) addr[i].opt.sockaddr; |
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437 addrs6[i].addr6 = sin6->sin6_addr; |
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438 |
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439 addrs6[i].conf.ctx = addr[i].opt.ctx; |
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440 #if (NGX_MAIL_SSL) |
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441 addrs6[i].conf.ssl = addr[i].opt.ssl; |
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442 #endif |
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443 addrs6[i].conf.proxy_protocol = addr[i].opt.proxy_protocol; |
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444 addrs6[i].conf.addr_text = addr[i].opt.addr_text; |
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445 } |
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446 |
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447 return NGX_OK; |
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448 } |
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449 |
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450 #endif |
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451 |
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452 |
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453 static ngx_int_t |
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454 ngx_mail_cmp_conf_addrs(const void *one, const void *two) |
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455 { |
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456 ngx_mail_conf_addr_t *first, *second; |
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457 |
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458 first = (ngx_mail_conf_addr_t *) one; |
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459 second = (ngx_mail_conf_addr_t *) two; |
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460 |
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461 if (first->opt.wildcard) { |
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462 /* a wildcard must be the last resort, shift it to the end */ |
641 | 463 return 1; |
464 } | |
465 | |
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466 if (second->opt.wildcard) { |
4817
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Mail: fixed sorting of listen addresses (ticket #187).
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diff
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|
467 /* a wildcard must be the last resort, shift it to the end */ |
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|
468 return -1; |
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Mail: fixed sorting of listen addresses (ticket #187).
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diff
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|
469 } |
d794e59800ef
Mail: fixed sorting of listen addresses (ticket #187).
Ruslan Ermilov <ru@nginx.com>
parents:
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diff
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|
470 |
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471 if (first->opt.bind && !second->opt.bind) { |
641 | 472 /* shift explicit bind()ed addresses to the start */ |
473 return -1; | |
474 } | |
475 | |
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476 if (!first->opt.bind && second->opt.bind) { |
641 | 477 /* shift explicit bind()ed addresses to the start */ |
478 return 1; | |
479 } | |
480 | |
481 /* do not sort by default */ | |
482 | |
483 return 0; | |
484 } |