initial commit
This commit is contained in:
@@ -0,0 +1,655 @@
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/*
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* Copyright (C) Roman Arutyunyan
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* Copyright (C) Nginx, Inc.
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_event.h>
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#include <ngx_stream.h>
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static char *ngx_stream_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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static ngx_int_t ngx_stream_init_phases(ngx_conf_t *cf,
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ngx_stream_core_main_conf_t *cmcf);
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static ngx_int_t ngx_stream_init_phase_handlers(ngx_conf_t *cf,
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ngx_stream_core_main_conf_t *cmcf);
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static ngx_int_t ngx_stream_add_ports(ngx_conf_t *cf, ngx_array_t *ports,
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ngx_stream_listen_t *listen);
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static char *ngx_stream_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports);
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static ngx_int_t ngx_stream_add_addrs(ngx_conf_t *cf, ngx_stream_port_t *stport,
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ngx_stream_conf_addr_t *addr);
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#if (NGX_HAVE_INET6)
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static ngx_int_t ngx_stream_add_addrs6(ngx_conf_t *cf,
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ngx_stream_port_t *stport, ngx_stream_conf_addr_t *addr);
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#endif
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static ngx_int_t ngx_stream_cmp_conf_addrs(const void *one, const void *two);
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ngx_uint_t ngx_stream_max_module;
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ngx_stream_filter_pt ngx_stream_top_filter;
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static ngx_command_t ngx_stream_commands[] = {
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{ ngx_string("stream"),
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NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
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ngx_stream_block,
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0,
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0,
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NULL },
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ngx_null_command
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};
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static ngx_core_module_t ngx_stream_module_ctx = {
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ngx_string("stream"),
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NULL,
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NULL
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};
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ngx_module_t ngx_stream_module = {
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NGX_MODULE_V1,
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&ngx_stream_module_ctx, /* module context */
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ngx_stream_commands, /* module directives */
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NGX_CORE_MODULE, /* module type */
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NULL, /* init master */
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NULL, /* init module */
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NULL, /* init process */
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NULL, /* init thread */
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NULL, /* exit thread */
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NULL, /* exit process */
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NULL, /* exit master */
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NGX_MODULE_V1_PADDING
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};
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static char *
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ngx_stream_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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{
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char *rv;
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ngx_uint_t i, m, mi, s;
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ngx_conf_t pcf;
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ngx_array_t ports;
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ngx_stream_listen_t *listen;
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ngx_stream_module_t *module;
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ngx_stream_conf_ctx_t *ctx;
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ngx_stream_core_srv_conf_t **cscfp;
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ngx_stream_core_main_conf_t *cmcf;
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if (*(ngx_stream_conf_ctx_t **) conf) {
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return "is duplicate";
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}
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/* the main stream context */
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ctx = ngx_pcalloc(cf->pool, sizeof(ngx_stream_conf_ctx_t));
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if (ctx == NULL) {
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return NGX_CONF_ERROR;
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}
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*(ngx_stream_conf_ctx_t **) conf = ctx;
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/* count the number of the stream modules and set up their indices */
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ngx_stream_max_module = ngx_count_modules(cf->cycle, NGX_STREAM_MODULE);
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/* the stream main_conf context, it's the same in the all stream contexts */
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ctx->main_conf = ngx_pcalloc(cf->pool,
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sizeof(void *) * ngx_stream_max_module);
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if (ctx->main_conf == NULL) {
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return NGX_CONF_ERROR;
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}
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/*
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* the stream null srv_conf context, it is used to merge
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* the server{}s' srv_conf's
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*/
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ctx->srv_conf = ngx_pcalloc(cf->pool,
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sizeof(void *) * ngx_stream_max_module);
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if (ctx->srv_conf == NULL) {
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return NGX_CONF_ERROR;
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}
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/*
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* create the main_conf's and the null srv_conf's of the all stream modules
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*/
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for (m = 0; cf->cycle->modules[m]; m++) {
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if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) {
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continue;
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}
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module = cf->cycle->modules[m]->ctx;
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mi = cf->cycle->modules[m]->ctx_index;
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if (module->create_main_conf) {
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ctx->main_conf[mi] = module->create_main_conf(cf);
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if (ctx->main_conf[mi] == NULL) {
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return NGX_CONF_ERROR;
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}
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}
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if (module->create_srv_conf) {
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ctx->srv_conf[mi] = module->create_srv_conf(cf);
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if (ctx->srv_conf[mi] == NULL) {
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return NGX_CONF_ERROR;
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}
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}
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}
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pcf = *cf;
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cf->ctx = ctx;
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for (m = 0; cf->cycle->modules[m]; m++) {
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if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) {
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continue;
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}
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module = cf->cycle->modules[m]->ctx;
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if (module->preconfiguration) {
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if (module->preconfiguration(cf) != NGX_OK) {
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return NGX_CONF_ERROR;
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}
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}
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}
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/* parse inside the stream{} block */
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cf->module_type = NGX_STREAM_MODULE;
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cf->cmd_type = NGX_STREAM_MAIN_CONF;
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rv = ngx_conf_parse(cf, NULL);
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if (rv != NGX_CONF_OK) {
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*cf = pcf;
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return rv;
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}
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/* init stream{} main_conf's, merge the server{}s' srv_conf's */
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cmcf = ctx->main_conf[ngx_stream_core_module.ctx_index];
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cscfp = cmcf->servers.elts;
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for (m = 0; cf->cycle->modules[m]; m++) {
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if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) {
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continue;
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}
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module = cf->cycle->modules[m]->ctx;
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mi = cf->cycle->modules[m]->ctx_index;
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/* init stream{} main_conf's */
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cf->ctx = ctx;
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if (module->init_main_conf) {
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rv = module->init_main_conf(cf, ctx->main_conf[mi]);
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if (rv != NGX_CONF_OK) {
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*cf = pcf;
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return rv;
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}
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}
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for (s = 0; s < cmcf->servers.nelts; s++) {
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/* merge the server{}s' srv_conf's */
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cf->ctx = cscfp[s]->ctx;
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if (module->merge_srv_conf) {
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rv = module->merge_srv_conf(cf,
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ctx->srv_conf[mi],
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cscfp[s]->ctx->srv_conf[mi]);
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if (rv != NGX_CONF_OK) {
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*cf = pcf;
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return rv;
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}
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}
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}
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}
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if (ngx_stream_init_phases(cf, cmcf) != NGX_OK) {
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return NGX_CONF_ERROR;
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}
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for (m = 0; cf->cycle->modules[m]; m++) {
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if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) {
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continue;
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}
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module = cf->cycle->modules[m]->ctx;
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if (module->postconfiguration) {
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if (module->postconfiguration(cf) != NGX_OK) {
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return NGX_CONF_ERROR;
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}
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}
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}
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if (ngx_stream_variables_init_vars(cf) != NGX_OK) {
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return NGX_CONF_ERROR;
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}
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*cf = pcf;
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if (ngx_stream_init_phase_handlers(cf, cmcf) != NGX_OK) {
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return NGX_CONF_ERROR;
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}
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if (ngx_array_init(&ports, cf->temp_pool, 4, sizeof(ngx_stream_conf_port_t))
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!= NGX_OK)
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{
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return NGX_CONF_ERROR;
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}
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listen = cmcf->listen.elts;
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for (i = 0; i < cmcf->listen.nelts; i++) {
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if (ngx_stream_add_ports(cf, &ports, &listen[i]) != NGX_OK) {
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return NGX_CONF_ERROR;
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}
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}
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return ngx_stream_optimize_servers(cf, &ports);
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}
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static ngx_int_t
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ngx_stream_init_phases(ngx_conf_t *cf, ngx_stream_core_main_conf_t *cmcf)
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{
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if (ngx_array_init(&cmcf->phases[NGX_STREAM_POST_ACCEPT_PHASE].handlers,
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cf->pool, 1, sizeof(ngx_stream_handler_pt))
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!= NGX_OK)
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{
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return NGX_ERROR;
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}
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if (ngx_array_init(&cmcf->phases[NGX_STREAM_PREACCESS_PHASE].handlers,
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cf->pool, 1, sizeof(ngx_stream_handler_pt))
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!= NGX_OK)
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{
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return NGX_ERROR;
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}
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if (ngx_array_init(&cmcf->phases[NGX_STREAM_ACCESS_PHASE].handlers,
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cf->pool, 1, sizeof(ngx_stream_handler_pt))
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!= NGX_OK)
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{
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return NGX_ERROR;
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}
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if (ngx_array_init(&cmcf->phases[NGX_STREAM_SSL_PHASE].handlers,
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cf->pool, 1, sizeof(ngx_stream_handler_pt))
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!= NGX_OK)
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{
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return NGX_ERROR;
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}
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if (ngx_array_init(&cmcf->phases[NGX_STREAM_PREREAD_PHASE].handlers,
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cf->pool, 1, sizeof(ngx_stream_handler_pt))
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!= NGX_OK)
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{
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return NGX_ERROR;
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}
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if (ngx_array_init(&cmcf->phases[NGX_STREAM_LOG_PHASE].handlers,
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cf->pool, 1, sizeof(ngx_stream_handler_pt))
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!= NGX_OK)
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{
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return NGX_ERROR;
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}
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return NGX_OK;
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}
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static ngx_int_t
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ngx_stream_init_phase_handlers(ngx_conf_t *cf,
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ngx_stream_core_main_conf_t *cmcf)
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{
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ngx_int_t j;
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ngx_uint_t i, n;
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ngx_stream_handler_pt *h;
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ngx_stream_phase_handler_t *ph;
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ngx_stream_phase_handler_pt checker;
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n = 1 /* content phase */;
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for (i = 0; i < NGX_STREAM_LOG_PHASE; i++) {
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n += cmcf->phases[i].handlers.nelts;
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}
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ph = ngx_pcalloc(cf->pool,
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n * sizeof(ngx_stream_phase_handler_t) + sizeof(void *));
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if (ph == NULL) {
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return NGX_ERROR;
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}
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cmcf->phase_engine.handlers = ph;
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n = 0;
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for (i = 0; i < NGX_STREAM_LOG_PHASE; i++) {
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h = cmcf->phases[i].handlers.elts;
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switch (i) {
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case NGX_STREAM_PREREAD_PHASE:
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checker = ngx_stream_core_preread_phase;
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break;
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case NGX_STREAM_CONTENT_PHASE:
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ph->checker = ngx_stream_core_content_phase;
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n++;
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ph++;
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continue;
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default:
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checker = ngx_stream_core_generic_phase;
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}
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n += cmcf->phases[i].handlers.nelts;
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for (j = cmcf->phases[i].handlers.nelts - 1; j >= 0; j--) {
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ph->checker = checker;
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ph->handler = h[j];
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ph->next = n;
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ph++;
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}
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}
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return NGX_OK;
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}
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static ngx_int_t
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ngx_stream_add_ports(ngx_conf_t *cf, ngx_array_t *ports,
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ngx_stream_listen_t *listen)
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{
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in_port_t p;
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ngx_uint_t i;
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struct sockaddr *sa;
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ngx_stream_conf_port_t *port;
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ngx_stream_conf_addr_t *addr;
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sa = listen->sockaddr;
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p = ngx_inet_get_port(sa);
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port = ports->elts;
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for (i = 0; i < ports->nelts; i++) {
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if (p == port[i].port
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&& listen->type == port[i].type
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&& sa->sa_family == port[i].family)
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{
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/* a port is already in the port list */
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port = &port[i];
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goto found;
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}
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}
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/* add a port to the port list */
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port = ngx_array_push(ports);
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if (port == NULL) {
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return NGX_ERROR;
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||||
}
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||||
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port->family = sa->sa_family;
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port->type = listen->type;
|
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port->port = p;
|
||||
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if (ngx_array_init(&port->addrs, cf->temp_pool, 2,
|
||||
sizeof(ngx_stream_conf_addr_t))
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||||
!= NGX_OK)
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||||
{
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||||
return NGX_ERROR;
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||||
}
|
||||
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||||
found:
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||||
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||||
addr = ngx_array_push(&port->addrs);
|
||||
if (addr == NULL) {
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||||
return NGX_ERROR;
|
||||
}
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||||
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||||
addr->opt = *listen;
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||||
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||||
return NGX_OK;
|
||||
}
|
||||
|
||||
|
||||
static char *
|
||||
ngx_stream_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports)
|
||||
{
|
||||
ngx_uint_t i, p, last, bind_wildcard;
|
||||
ngx_listening_t *ls;
|
||||
ngx_stream_port_t *stport;
|
||||
ngx_stream_conf_port_t *port;
|
||||
ngx_stream_conf_addr_t *addr;
|
||||
ngx_stream_core_srv_conf_t *cscf;
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||||
|
||||
port = ports->elts;
|
||||
for (p = 0; p < ports->nelts; p++) {
|
||||
|
||||
ngx_sort(port[p].addrs.elts, (size_t) port[p].addrs.nelts,
|
||||
sizeof(ngx_stream_conf_addr_t), ngx_stream_cmp_conf_addrs);
|
||||
|
||||
addr = port[p].addrs.elts;
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||||
last = port[p].addrs.nelts;
|
||||
|
||||
/*
|
||||
* if there is the binding to the "*:port" then we need to bind()
|
||||
* to the "*:port" only and ignore the other bindings
|
||||
*/
|
||||
|
||||
if (addr[last - 1].opt.wildcard) {
|
||||
addr[last - 1].opt.bind = 1;
|
||||
bind_wildcard = 1;
|
||||
|
||||
} else {
|
||||
bind_wildcard = 0;
|
||||
}
|
||||
|
||||
i = 0;
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||||
|
||||
while (i < last) {
|
||||
|
||||
if (bind_wildcard && !addr[i].opt.bind) {
|
||||
i++;
|
||||
continue;
|
||||
}
|
||||
|
||||
ls = ngx_create_listening(cf, addr[i].opt.sockaddr,
|
||||
addr[i].opt.socklen);
|
||||
if (ls == NULL) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
|
||||
ls->addr_ntop = 1;
|
||||
ls->handler = ngx_stream_init_connection;
|
||||
ls->pool_size = 256;
|
||||
ls->type = addr[i].opt.type;
|
||||
|
||||
cscf = addr->opt.ctx->srv_conf[ngx_stream_core_module.ctx_index];
|
||||
|
||||
ls->logp = cscf->error_log;
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||||
ls->log.data = &ls->addr_text;
|
||||
ls->log.handler = ngx_accept_log_error;
|
||||
|
||||
ls->backlog = addr[i].opt.backlog;
|
||||
ls->rcvbuf = addr[i].opt.rcvbuf;
|
||||
ls->sndbuf = addr[i].opt.sndbuf;
|
||||
|
||||
ls->wildcard = addr[i].opt.wildcard;
|
||||
|
||||
ls->keepalive = addr[i].opt.so_keepalive;
|
||||
#if (NGX_HAVE_KEEPALIVE_TUNABLE)
|
||||
ls->keepidle = addr[i].opt.tcp_keepidle;
|
||||
ls->keepintvl = addr[i].opt.tcp_keepintvl;
|
||||
ls->keepcnt = addr[i].opt.tcp_keepcnt;
|
||||
#endif
|
||||
|
||||
#if (NGX_HAVE_INET6)
|
||||
ls->ipv6only = addr[i].opt.ipv6only;
|
||||
#endif
|
||||
|
||||
#if (NGX_HAVE_TCP_FASTOPEN)
|
||||
ls->fastopen = addr[i].opt.fastopen;
|
||||
#endif
|
||||
|
||||
#if (NGX_HAVE_REUSEPORT)
|
||||
ls->reuseport = addr[i].opt.reuseport;
|
||||
#endif
|
||||
|
||||
stport = ngx_palloc(cf->pool, sizeof(ngx_stream_port_t));
|
||||
if (stport == NULL) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
|
||||
ls->servers = stport;
|
||||
|
||||
stport->naddrs = i + 1;
|
||||
|
||||
switch (ls->sockaddr->sa_family) {
|
||||
#if (NGX_HAVE_INET6)
|
||||
case AF_INET6:
|
||||
if (ngx_stream_add_addrs6(cf, stport, addr) != NGX_OK) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
break;
|
||||
#endif
|
||||
default: /* AF_INET */
|
||||
if (ngx_stream_add_addrs(cf, stport, addr) != NGX_OK) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
addr++;
|
||||
last--;
|
||||
}
|
||||
}
|
||||
|
||||
return NGX_CONF_OK;
|
||||
}
|
||||
|
||||
|
||||
static ngx_int_t
|
||||
ngx_stream_add_addrs(ngx_conf_t *cf, ngx_stream_port_t *stport,
|
||||
ngx_stream_conf_addr_t *addr)
|
||||
{
|
||||
ngx_uint_t i;
|
||||
struct sockaddr_in *sin;
|
||||
ngx_stream_in_addr_t *addrs;
|
||||
|
||||
stport->addrs = ngx_pcalloc(cf->pool,
|
||||
stport->naddrs * sizeof(ngx_stream_in_addr_t));
|
||||
if (stport->addrs == NULL) {
|
||||
return NGX_ERROR;
|
||||
}
|
||||
|
||||
addrs = stport->addrs;
|
||||
|
||||
for (i = 0; i < stport->naddrs; i++) {
|
||||
|
||||
sin = (struct sockaddr_in *) addr[i].opt.sockaddr;
|
||||
addrs[i].addr = sin->sin_addr.s_addr;
|
||||
|
||||
addrs[i].conf.ctx = addr[i].opt.ctx;
|
||||
#if (NGX_STREAM_SSL)
|
||||
addrs[i].conf.ssl = addr[i].opt.ssl;
|
||||
#endif
|
||||
addrs[i].conf.proxy_protocol = addr[i].opt.proxy_protocol;
|
||||
addrs[i].conf.addr_text = addr[i].opt.addr_text;
|
||||
}
|
||||
|
||||
return NGX_OK;
|
||||
}
|
||||
|
||||
|
||||
#if (NGX_HAVE_INET6)
|
||||
|
||||
static ngx_int_t
|
||||
ngx_stream_add_addrs6(ngx_conf_t *cf, ngx_stream_port_t *stport,
|
||||
ngx_stream_conf_addr_t *addr)
|
||||
{
|
||||
ngx_uint_t i;
|
||||
struct sockaddr_in6 *sin6;
|
||||
ngx_stream_in6_addr_t *addrs6;
|
||||
|
||||
stport->addrs = ngx_pcalloc(cf->pool,
|
||||
stport->naddrs * sizeof(ngx_stream_in6_addr_t));
|
||||
if (stport->addrs == NULL) {
|
||||
return NGX_ERROR;
|
||||
}
|
||||
|
||||
addrs6 = stport->addrs;
|
||||
|
||||
for (i = 0; i < stport->naddrs; i++) {
|
||||
|
||||
sin6 = (struct sockaddr_in6 *) addr[i].opt.sockaddr;
|
||||
addrs6[i].addr6 = sin6->sin6_addr;
|
||||
|
||||
addrs6[i].conf.ctx = addr[i].opt.ctx;
|
||||
#if (NGX_STREAM_SSL)
|
||||
addrs6[i].conf.ssl = addr[i].opt.ssl;
|
||||
#endif
|
||||
addrs6[i].conf.proxy_protocol = addr[i].opt.proxy_protocol;
|
||||
addrs6[i].conf.addr_text = addr[i].opt.addr_text;
|
||||
}
|
||||
|
||||
return NGX_OK;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
static ngx_int_t
|
||||
ngx_stream_cmp_conf_addrs(const void *one, const void *two)
|
||||
{
|
||||
ngx_stream_conf_addr_t *first, *second;
|
||||
|
||||
first = (ngx_stream_conf_addr_t *) one;
|
||||
second = (ngx_stream_conf_addr_t *) two;
|
||||
|
||||
if (first->opt.wildcard) {
|
||||
/* a wildcard must be the last resort, shift it to the end */
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (second->opt.wildcard) {
|
||||
/* a wildcard must be the last resort, shift it to the end */
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (first->opt.bind && !second->opt.bind) {
|
||||
/* shift explicit bind()ed addresses to the start */
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!first->opt.bind && second->opt.bind) {
|
||||
/* shift explicit bind()ed addresses to the start */
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* do not sort by default */
|
||||
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user