Mercurial > hg > nginx
annotate src/stream/ngx_stream_core_module.c @ 6436:8f038068f4bc
Stream: UDP proxy.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Wed, 20 Jan 2016 19:52:12 +0300 |
| parents | cf5e822cf470 |
| children | 6f8254ae61b8 |
| rev | line source |
|---|---|
| 6115 | 1 |
| 2 /* | |
| 3 * Copyright (C) Roman Arutyunyan | |
| 4 * Copyright (C) Nginx, Inc. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_stream.h> | |
| 11 | |
| 12 | |
| 13 static void *ngx_stream_core_create_main_conf(ngx_conf_t *cf); | |
| 14 static void *ngx_stream_core_create_srv_conf(ngx_conf_t *cf); | |
| 15 static char *ngx_stream_core_merge_srv_conf(ngx_conf_t *cf, void *parent, | |
| 16 void *child); | |
| 17 static char *ngx_stream_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 18 void *conf); | |
| 19 static char *ngx_stream_core_server(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 20 void *conf); | |
| 21 static char *ngx_stream_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 22 void *conf); | |
| 23 | |
| 24 | |
| 25 static ngx_command_t ngx_stream_core_commands[] = { | |
| 26 | |
| 27 { ngx_string("server"), | |
| 28 NGX_STREAM_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, | |
| 29 ngx_stream_core_server, | |
| 30 0, | |
| 31 0, | |
| 32 NULL }, | |
| 33 | |
| 34 { ngx_string("listen"), | |
| 35 NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, | |
| 36 ngx_stream_core_listen, | |
| 37 NGX_STREAM_SRV_CONF_OFFSET, | |
| 38 0, | |
| 39 NULL }, | |
| 40 | |
| 41 { ngx_string("error_log"), | |
| 42 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, | |
| 43 ngx_stream_core_error_log, | |
| 44 NGX_STREAM_SRV_CONF_OFFSET, | |
| 45 0, | |
| 46 NULL }, | |
| 47 | |
|
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48 { ngx_string("tcp_nodelay"), |
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49 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, |
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50 ngx_conf_set_flag_slot, |
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51 NGX_STREAM_SRV_CONF_OFFSET, |
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52 offsetof(ngx_stream_core_srv_conf_t, tcp_nodelay), |
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53 NULL }, |
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54 |
| 6115 | 55 ngx_null_command |
| 56 }; | |
| 57 | |
| 58 | |
| 59 static ngx_stream_module_t ngx_stream_core_module_ctx = { | |
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60 NULL, /* postconfiguration */ |
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61 |
| 6115 | 62 ngx_stream_core_create_main_conf, /* create main configuration */ |
| 63 NULL, /* init main configuration */ | |
| 64 | |
| 65 ngx_stream_core_create_srv_conf, /* create server configuration */ | |
| 66 ngx_stream_core_merge_srv_conf /* merge server configuration */ | |
| 67 }; | |
| 68 | |
| 69 | |
| 70 ngx_module_t ngx_stream_core_module = { | |
| 71 NGX_MODULE_V1, | |
| 72 &ngx_stream_core_module_ctx, /* module context */ | |
| 73 ngx_stream_core_commands, /* module directives */ | |
| 74 NGX_STREAM_MODULE, /* module type */ | |
| 75 NULL, /* init master */ | |
| 76 NULL, /* init module */ | |
| 77 NULL, /* init process */ | |
| 78 NULL, /* init thread */ | |
| 79 NULL, /* exit thread */ | |
| 80 NULL, /* exit process */ | |
| 81 NULL, /* exit master */ | |
| 82 NGX_MODULE_V1_PADDING | |
| 83 }; | |
| 84 | |
| 85 | |
| 86 static void * | |
| 87 ngx_stream_core_create_main_conf(ngx_conf_t *cf) | |
| 88 { | |
| 89 ngx_stream_core_main_conf_t *cmcf; | |
| 90 | |
| 91 cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_core_main_conf_t)); | |
| 92 if (cmcf == NULL) { | |
| 93 return NULL; | |
| 94 } | |
| 95 | |
| 96 if (ngx_array_init(&cmcf->servers, cf->pool, 4, | |
| 97 sizeof(ngx_stream_core_srv_conf_t *)) | |
| 98 != NGX_OK) | |
| 99 { | |
| 100 return NULL; | |
| 101 } | |
| 102 | |
| 103 if (ngx_array_init(&cmcf->listen, cf->pool, 4, sizeof(ngx_stream_listen_t)) | |
| 104 != NGX_OK) | |
| 105 { | |
| 106 return NULL; | |
| 107 } | |
| 108 | |
| 109 return cmcf; | |
| 110 } | |
| 111 | |
| 112 | |
| 113 static void * | |
| 114 ngx_stream_core_create_srv_conf(ngx_conf_t *cf) | |
| 115 { | |
| 116 ngx_stream_core_srv_conf_t *cscf; | |
| 117 | |
| 118 cscf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_core_srv_conf_t)); | |
| 119 if (cscf == NULL) { | |
| 120 return NULL; | |
| 121 } | |
| 122 | |
| 123 /* | |
| 124 * set by ngx_pcalloc(): | |
| 125 * | |
| 126 * cscf->handler = NULL; | |
| 127 * cscf->error_log = NULL; | |
| 128 */ | |
| 129 | |
| 130 cscf->file_name = cf->conf_file->file.name.data; | |
| 131 cscf->line = cf->conf_file->line; | |
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132 cscf->tcp_nodelay = NGX_CONF_UNSET; |
| 6115 | 133 |
| 134 return cscf; | |
| 135 } | |
| 136 | |
| 137 | |
| 138 static char * | |
| 139 ngx_stream_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 140 { | |
| 141 ngx_stream_core_srv_conf_t *prev = parent; | |
| 142 ngx_stream_core_srv_conf_t *conf = child; | |
| 143 | |
| 144 if (conf->handler == NULL) { | |
| 145 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 146 "no handler for server in %s:%ui", | |
| 147 conf->file_name, conf->line); | |
| 148 return NGX_CONF_ERROR; | |
| 149 } | |
| 150 | |
| 151 if (conf->error_log == NULL) { | |
| 152 if (prev->error_log) { | |
| 153 conf->error_log = prev->error_log; | |
| 154 } else { | |
| 155 conf->error_log = &cf->cycle->new_log; | |
| 156 } | |
| 157 } | |
| 158 | |
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159 ngx_conf_merge_value(conf->tcp_nodelay, prev->tcp_nodelay, 1); |
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160 |
| 6115 | 161 return NGX_CONF_OK; |
| 162 } | |
| 163 | |
| 164 | |
| 165 static char * | |
| 166 ngx_stream_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 167 { | |
| 168 ngx_stream_core_srv_conf_t *cscf = conf; | |
| 169 | |
| 170 return ngx_log_set_log(cf, &cscf->error_log); | |
| 171 } | |
| 172 | |
| 173 | |
| 174 static char * | |
| 175 ngx_stream_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 176 { | |
| 177 char *rv; | |
| 178 void *mconf; | |
| 179 ngx_uint_t m; | |
| 180 ngx_conf_t pcf; | |
| 181 ngx_stream_module_t *module; | |
| 182 ngx_stream_conf_ctx_t *ctx, *stream_ctx; | |
| 183 ngx_stream_core_srv_conf_t *cscf, **cscfp; | |
| 184 ngx_stream_core_main_conf_t *cmcf; | |
| 185 | |
| 186 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_stream_conf_ctx_t)); | |
| 187 if (ctx == NULL) { | |
| 188 return NGX_CONF_ERROR; | |
| 189 } | |
| 190 | |
| 191 stream_ctx = cf->ctx; | |
| 192 ctx->main_conf = stream_ctx->main_conf; | |
| 193 | |
| 194 /* the server{}'s srv_conf */ | |
| 195 | |
| 196 ctx->srv_conf = ngx_pcalloc(cf->pool, | |
| 197 sizeof(void *) * ngx_stream_max_module); | |
| 198 if (ctx->srv_conf == NULL) { | |
| 199 return NGX_CONF_ERROR; | |
| 200 } | |
| 201 | |
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202 for (m = 0; cf->cycle->modules[m]; m++) { |
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203 if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) { |
| 6115 | 204 continue; |
| 205 } | |
| 206 | |
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207 module = cf->cycle->modules[m]->ctx; |
| 6115 | 208 |
| 209 if (module->create_srv_conf) { | |
| 210 mconf = module->create_srv_conf(cf); | |
| 211 if (mconf == NULL) { | |
| 212 return NGX_CONF_ERROR; | |
| 213 } | |
| 214 | |
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215 ctx->srv_conf[cf->cycle->modules[m]->ctx_index] = mconf; |
| 6115 | 216 } |
| 217 } | |
| 218 | |
| 219 /* the server configuration context */ | |
| 220 | |
| 221 cscf = ctx->srv_conf[ngx_stream_core_module.ctx_index]; | |
| 222 cscf->ctx = ctx; | |
| 223 | |
| 224 cmcf = ctx->main_conf[ngx_stream_core_module.ctx_index]; | |
| 225 | |
| 226 cscfp = ngx_array_push(&cmcf->servers); | |
| 227 if (cscfp == NULL) { | |
| 228 return NGX_CONF_ERROR; | |
| 229 } | |
| 230 | |
| 231 *cscfp = cscf; | |
| 232 | |
| 233 | |
| 234 /* parse inside server{} */ | |
| 235 | |
| 236 pcf = *cf; | |
| 237 cf->ctx = ctx; | |
| 238 cf->cmd_type = NGX_STREAM_SRV_CONF; | |
| 239 | |
| 240 rv = ngx_conf_parse(cf, NULL); | |
| 241 | |
| 242 *cf = pcf; | |
| 243 | |
| 244 return rv; | |
| 245 } | |
| 246 | |
| 247 | |
| 248 static char * | |
| 249 ngx_stream_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 250 { | |
| 251 size_t len, off; | |
| 252 in_port_t port; | |
| 253 ngx_str_t *value; | |
| 254 ngx_url_t u; | |
| 6436 | 255 ngx_uint_t i, backlog; |
| 6115 | 256 struct sockaddr *sa; |
| 257 struct sockaddr_in *sin; | |
| 258 ngx_stream_listen_t *ls; | |
| 259 ngx_stream_core_main_conf_t *cmcf; | |
| 260 #if (NGX_HAVE_INET6) | |
| 261 struct sockaddr_in6 *sin6; | |
| 262 #endif | |
| 263 | |
| 264 value = cf->args->elts; | |
| 265 | |
| 266 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 267 | |
| 268 u.url = value[1]; | |
| 269 u.listen = 1; | |
| 270 | |
| 271 if (ngx_parse_url(cf->pool, &u) != NGX_OK) { | |
| 272 if (u.err) { | |
| 273 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 274 "%s in \"%V\" of the \"listen\" directive", | |
| 275 u.err, &u.url); | |
| 276 } | |
| 277 | |
| 278 return NGX_CONF_ERROR; | |
| 279 } | |
| 280 | |
| 281 cmcf = ngx_stream_conf_get_module_main_conf(cf, ngx_stream_core_module); | |
| 282 | |
| 283 ls = cmcf->listen.elts; | |
| 284 | |
| 285 for (i = 0; i < cmcf->listen.nelts; i++) { | |
| 286 | |
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287 sa = &ls[i].u.sockaddr; |
| 6115 | 288 |
| 289 if (sa->sa_family != u.family) { | |
| 290 continue; | |
| 291 } | |
| 292 | |
| 293 switch (sa->sa_family) { | |
| 294 | |
| 295 #if (NGX_HAVE_INET6) | |
| 296 case AF_INET6: | |
| 297 off = offsetof(struct sockaddr_in6, sin6_addr); | |
| 298 len = 16; | |
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299 sin6 = &ls[i].u.sockaddr_in6; |
| 6115 | 300 port = sin6->sin6_port; |
| 301 break; | |
| 302 #endif | |
| 303 | |
| 304 #if (NGX_HAVE_UNIX_DOMAIN) | |
| 305 case AF_UNIX: | |
| 306 off = offsetof(struct sockaddr_un, sun_path); | |
| 307 len = sizeof(((struct sockaddr_un *) sa)->sun_path); | |
| 308 port = 0; | |
| 309 break; | |
| 310 #endif | |
| 311 | |
| 312 default: /* AF_INET */ | |
| 313 off = offsetof(struct sockaddr_in, sin_addr); | |
| 314 len = 4; | |
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315 sin = &ls[i].u.sockaddr_in; |
| 6115 | 316 port = sin->sin_port; |
| 317 break; | |
| 318 } | |
| 319 | |
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320 if (ngx_memcmp(ls[i].u.sockaddr_data + off, u.sockaddr + off, len) |
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321 != 0) |
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322 { |
| 6115 | 323 continue; |
| 324 } | |
| 325 | |
| 326 if (port != u.port) { | |
| 327 continue; | |
| 328 } | |
| 329 | |
| 330 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 331 "duplicate \"%V\" address and port pair", &u.url); | |
| 332 return NGX_CONF_ERROR; | |
| 333 } | |
| 334 | |
| 335 ls = ngx_array_push(&cmcf->listen); | |
| 336 if (ls == NULL) { | |
| 337 return NGX_CONF_ERROR; | |
| 338 } | |
| 339 | |
| 340 ngx_memzero(ls, sizeof(ngx_stream_listen_t)); | |
| 341 | |
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342 ngx_memcpy(&ls->u.sockaddr, u.sockaddr, u.socklen); |
| 6115 | 343 |
| 344 ls->socklen = u.socklen; | |
| 6172 | 345 ls->backlog = NGX_LISTEN_BACKLOG; |
| 6436 | 346 ls->type = SOCK_STREAM; |
| 6115 | 347 ls->wildcard = u.wildcard; |
| 348 ls->ctx = cf->ctx; | |
| 349 | |
| 350 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) | |
| 351 ls->ipv6only = 1; | |
| 352 #endif | |
| 353 | |
| 6436 | 354 backlog = 0; |
| 355 | |
| 6115 | 356 for (i = 2; i < cf->args->nelts; i++) { |
| 357 | |
| 6436 | 358 #if !(NGX_WIN32) |
| 359 if (ngx_strcmp(value[i].data, "udp") == 0) { | |
| 360 ls->type = SOCK_DGRAM; | |
| 361 continue; | |
| 362 } | |
| 363 #endif | |
| 364 | |
| 6115 | 365 if (ngx_strcmp(value[i].data, "bind") == 0) { |
| 366 ls->bind = 1; | |
| 367 continue; | |
| 368 } | |
| 369 | |
| 6172 | 370 if (ngx_strncmp(value[i].data, "backlog=", 8) == 0) { |
| 371 ls->backlog = ngx_atoi(value[i].data + 8, value[i].len - 8); | |
| 372 ls->bind = 1; | |
| 373 | |
| 374 if (ls->backlog == NGX_ERROR || ls->backlog == 0) { | |
| 375 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 376 "invalid backlog \"%V\"", &value[i]); | |
| 377 return NGX_CONF_ERROR; | |
| 378 } | |
| 379 | |
| 6436 | 380 backlog = 1; |
| 381 | |
| 6172 | 382 continue; |
| 383 } | |
| 384 | |
| 6115 | 385 if (ngx_strncmp(value[i].data, "ipv6only=o", 10) == 0) { |
| 386 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) | |
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387 u_char buf[NGX_SOCKADDR_STRLEN]; |
| 6115 | 388 |
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Stream: embed ngx_stream_listen_t into ngx_stream_conf_addr_t.
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parents:
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389 sa = &ls->u.sockaddr; |
| 6115 | 390 |
| 391 if (sa->sa_family == AF_INET6) { | |
| 392 | |
| 393 if (ngx_strcmp(&value[i].data[10], "n") == 0) { | |
| 394 ls->ipv6only = 1; | |
| 395 | |
| 396 } else if (ngx_strcmp(&value[i].data[10], "ff") == 0) { | |
| 397 ls->ipv6only = 0; | |
| 398 | |
| 399 } else { | |
| 400 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 401 "invalid ipv6only flags \"%s\"", | |
| 402 &value[i].data[9]); | |
| 403 return NGX_CONF_ERROR; | |
| 404 } | |
| 405 | |
| 406 ls->bind = 1; | |
| 407 | |
| 408 } else { | |
| 409 len = ngx_sock_ntop(sa, ls->socklen, buf, | |
| 410 NGX_SOCKADDR_STRLEN, 1); | |
| 411 | |
| 412 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 413 "ipv6only is not supported " | |
| 414 "on addr \"%*s\", ignored", len, buf); | |
| 415 } | |
| 416 | |
| 417 continue; | |
| 418 #else | |
| 419 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 420 "bind ipv6only is not supported " | |
| 421 "on this platform"); | |
| 422 return NGX_CONF_ERROR; | |
| 423 #endif | |
| 424 } | |
| 425 | |
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The "reuseport" option of the "listen" directive.
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426 if (ngx_strcmp(value[i].data, "reuseport") == 0) { |
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The "reuseport" option of the "listen" directive.
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parents:
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427 #if (NGX_HAVE_REUSEPORT) |
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The "reuseport" option of the "listen" directive.
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parents:
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428 ls->reuseport = 1; |
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The "reuseport" option of the "listen" directive.
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parents:
6115
diff
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429 ls->bind = 1; |
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The "reuseport" option of the "listen" directive.
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parents:
6115
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430 #else |
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The "reuseport" option of the "listen" directive.
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parents:
6115
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431 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
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432 "reuseport is not supported " |
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parents:
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433 "on this platform, ignored"); |
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parents:
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434 #endif |
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parents:
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435 continue; |
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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436 } |
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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changeset
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437 |
| 6115 | 438 if (ngx_strcmp(value[i].data, "ssl") == 0) { |
| 439 #if (NGX_STREAM_SSL) | |
| 440 ls->ssl = 1; | |
| 441 continue; | |
| 442 #else | |
| 443 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 444 "the \"ssl\" parameter requires " | |
| 445 "ngx_stream_ssl_module"); | |
| 446 return NGX_CONF_ERROR; | |
| 447 #endif | |
| 448 } | |
| 449 | |
| 450 if (ngx_strncmp(value[i].data, "so_keepalive=", 13) == 0) { | |
| 451 | |
| 452 if (ngx_strcmp(&value[i].data[13], "on") == 0) { | |
| 453 ls->so_keepalive = 1; | |
| 454 | |
| 455 } else if (ngx_strcmp(&value[i].data[13], "off") == 0) { | |
| 456 ls->so_keepalive = 2; | |
| 457 | |
| 458 } else { | |
| 459 | |
| 460 #if (NGX_HAVE_KEEPALIVE_TUNABLE) | |
| 461 u_char *p, *end; | |
| 462 ngx_str_t s; | |
| 463 | |
| 464 end = value[i].data + value[i].len; | |
| 465 s.data = value[i].data + 13; | |
| 466 | |
| 467 p = ngx_strlchr(s.data, end, ':'); | |
| 468 if (p == NULL) { | |
| 469 p = end; | |
| 470 } | |
| 471 | |
| 472 if (p > s.data) { | |
| 473 s.len = p - s.data; | |
| 474 | |
| 475 ls->tcp_keepidle = ngx_parse_time(&s, 1); | |
| 476 if (ls->tcp_keepidle == (time_t) NGX_ERROR) { | |
| 477 goto invalid_so_keepalive; | |
| 478 } | |
| 479 } | |
| 480 | |
| 481 s.data = (p < end) ? (p + 1) : end; | |
| 482 | |
| 483 p = ngx_strlchr(s.data, end, ':'); | |
| 484 if (p == NULL) { | |
| 485 p = end; | |
| 486 } | |
| 487 | |
| 488 if (p > s.data) { | |
| 489 s.len = p - s.data; | |
| 490 | |
| 491 ls->tcp_keepintvl = ngx_parse_time(&s, 1); | |
| 492 if (ls->tcp_keepintvl == (time_t) NGX_ERROR) { | |
| 493 goto invalid_so_keepalive; | |
| 494 } | |
| 495 } | |
| 496 | |
| 497 s.data = (p < end) ? (p + 1) : end; | |
| 498 | |
| 499 if (s.data < end) { | |
| 500 s.len = end - s.data; | |
| 501 | |
| 502 ls->tcp_keepcnt = ngx_atoi(s.data, s.len); | |
| 503 if (ls->tcp_keepcnt == NGX_ERROR) { | |
| 504 goto invalid_so_keepalive; | |
| 505 } | |
| 506 } | |
| 507 | |
| 508 if (ls->tcp_keepidle == 0 && ls->tcp_keepintvl == 0 | |
| 509 && ls->tcp_keepcnt == 0) | |
| 510 { | |
| 511 goto invalid_so_keepalive; | |
| 512 } | |
| 513 | |
| 514 ls->so_keepalive = 1; | |
| 515 | |
| 516 #else | |
| 517 | |
| 518 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 519 "the \"so_keepalive\" parameter accepts " | |
| 520 "only \"on\" or \"off\" on this platform"); | |
| 521 return NGX_CONF_ERROR; | |
| 522 | |
| 523 #endif | |
| 524 } | |
| 525 | |
| 526 ls->bind = 1; | |
| 527 | |
| 528 continue; | |
| 529 | |
| 530 #if (NGX_HAVE_KEEPALIVE_TUNABLE) | |
| 531 invalid_so_keepalive: | |
| 532 | |
| 533 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 534 "invalid so_keepalive value: \"%s\"", | |
| 535 &value[i].data[13]); | |
| 536 return NGX_CONF_ERROR; | |
| 537 #endif | |
| 538 } | |
| 539 | |
| 540 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 541 "the invalid \"%V\" parameter", &value[i]); | |
| 542 return NGX_CONF_ERROR; | |
| 543 } | |
| 544 | |
| 6436 | 545 if (ls->type == SOCK_DGRAM) { |
| 546 if (backlog) { | |
| 547 return "\"backlog\" parameter is incompatible with \"udp\""; | |
| 548 } | |
| 549 | |
| 550 #if (NGX_STREAM_SSL) | |
| 551 if (ls->ssl) { | |
| 552 return "\"ssl\" parameter is incompatible with \"udp\""; | |
| 553 } | |
| 554 #endif | |
| 555 | |
| 556 if (ls->so_keepalive) { | |
| 557 return "\"so_keepalive\" parameter is incompatible with \"udp\""; | |
| 558 } | |
| 559 } | |
| 560 | |
| 6115 | 561 return NGX_CONF_OK; |
| 562 } |