mirror of
https://github.com/arut/nginx-rtmp-module.git
synced 2025-08-06 15:00:18 +08:00
initial commit
This commit is contained in:
Roman Arutyunyan
529
ngx_rtmp.c
Normal file
529
ngx_rtmp.c
Normal file
@ -0,0 +1,529 @@
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/*
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* Copyright (c) 2012 Roman Arutyunyan
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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_rtmp.h"
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static char *ngx_rtmp_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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static ngx_int_t ngx_rtmp_add_ports(ngx_conf_t *cf, ngx_array_t *ports,
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ngx_rtmp_listen_t *listen);
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static char *ngx_rtmp_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports);
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static ngx_int_t ngx_rtmp_add_addrs(ngx_conf_t *cf, ngx_rtmp_port_t *mport,
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ngx_rtmp_conf_addr_t *addr);
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#if (NGX_HAVE_INET6)
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static ngx_int_t ngx_rtmp_add_addrs6(ngx_conf_t *cf, ngx_rtmp_port_t *mport,
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ngx_rtmp_conf_addr_t *addr);
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#endif
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static ngx_int_t ngx_rtmp_cmp_conf_addrs(const void *one, const void *two);
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ngx_uint_t ngx_rtmp_max_module;
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static ngx_command_t ngx_rtmp_commands[] = {
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{ ngx_string("rtmp"),
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NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
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ngx_rtmp_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_rtmp_module_ctx = {
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ngx_string("rtmp"),
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NULL,
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NULL
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};
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ngx_module_t ngx_rtmp_module = {
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NGX_MODULE_V1,
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&ngx_rtmp_module_ctx, /* module context */
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ngx_rtmp_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_rtmp_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_rtmp_listen_t *listen;
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ngx_rtmp_module_t *module;
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ngx_rtmp_conf_ctx_t *ctx;
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ngx_rtmp_core_srv_conf_t **cscfp;
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ngx_rtmp_core_main_conf_t *cmcf;
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ctx = ngx_pcalloc(cf->pool, sizeof(ngx_rtmp_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_rtmp_conf_ctx_t **) conf = ctx;
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/* count the number of the rtmp modules and set up their indices */
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ngx_rtmp_max_module = 0;
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for (m = 0; ngx_modules[m]; m++) {
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if (ngx_modules[m]->type != NGX_RTMP_MODULE) {
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continue;
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}
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ngx_modules[m]->ctx_index = ngx_rtmp_max_module++;
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}
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/* the rtmp main_conf context, it is the same in the all rtmp contexts */
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ctx->main_conf = ngx_pcalloc(cf->pool,
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sizeof(void *) * ngx_rtmp_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 rtmp 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, sizeof(void *) * ngx_rtmp_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, the null srv_conf's, and the null loc_conf's
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* of the all rtmp modules
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*/
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for (m = 0; ngx_modules[m]; m++) {
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if (ngx_modules[m]->type != NGX_RTMP_MODULE) {
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continue;
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}
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module = ngx_modules[m]->ctx;
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mi = ngx_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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/* parse inside the rtmp{} block */
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pcf = *cf;
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cf->ctx = ctx;
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cf->module_type = NGX_RTMP_MODULE;
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cf->cmd_type = NGX_RTMP_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 rtmp{} main_conf's, merge the server{}s' srv_conf's */
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cmcf = ctx->main_conf[ngx_rtmp_core_module.ctx_index];
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cscfp = cmcf->servers.elts;
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for (m = 0; ngx_modules[m]; m++) {
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if (ngx_modules[m]->type != NGX_RTMP_MODULE) {
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continue;
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}
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module = ngx_modules[m]->ctx;
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mi = ngx_modules[m]->ctx_index;
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/* init rtmp{} 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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*cf = pcf;
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if (ngx_array_init(&ports, cf->temp_pool, 4, sizeof(ngx_rtmp_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_rtmp_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_rtmp_optimize_servers(cf, &ports);
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}
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static ngx_int_t
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ngx_rtmp_add_ports(ngx_conf_t *cf, ngx_array_t *ports,
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ngx_rtmp_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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struct sockaddr_in *sin;
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ngx_rtmp_conf_port_t *port;
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ngx_rtmp_conf_addr_t *addr;
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#if (NGX_HAVE_INET6)
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struct sockaddr_in6 *sin6;
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#endif
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sa = (struct sockaddr *) &listen->sockaddr;
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switch (sa->sa_family) {
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#if (NGX_HAVE_INET6)
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case AF_INET6:
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sin6 = (struct sockaddr_in6 *) sa;
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p = sin6->sin6_port;
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break;
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#endif
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default: /* AF_INET */
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sin = (struct sockaddr_in *) sa;
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p = sin->sin_port;
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break;
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}
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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 && sa->sa_family == port[i].family) {
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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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port->family = sa->sa_family;
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port->port = p;
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if (ngx_array_init(&port->addrs, cf->temp_pool, 2,
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sizeof(ngx_rtmp_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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addr = ngx_array_push(&port->addrs);
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if (addr == NULL) {
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return NGX_ERROR;
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}
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addr->sockaddr = (struct sockaddr *) &listen->sockaddr;
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addr->socklen = listen->socklen;
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addr->ctx = listen->ctx;
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addr->bind = listen->bind;
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addr->wildcard = listen->wildcard;
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addr->so_keepalive = listen->so_keepalive;
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#if (NGX_HAVE_KEEPALIVE_TUNABLE)
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addr->tcp_keepidle = listen->tcp_keepidle;
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addr->tcp_keepintvl = listen->tcp_keepintvl;
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addr->tcp_keepcnt = listen->tcp_keepcnt;
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#endif
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#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
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addr->ipv6only = listen->ipv6only;
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#endif
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return NGX_OK;
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}
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static char *
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ngx_rtmp_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports)
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{
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ngx_uint_t i, p, last, bind_wildcard;
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ngx_listening_t *ls;
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ngx_rtmp_port_t *mport;
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ngx_rtmp_conf_port_t *port;
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ngx_rtmp_conf_addr_t *addr;
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port = ports->elts;
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for (p = 0; p < ports->nelts; p++) {
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ngx_sort(port[p].addrs.elts, (size_t) port[p].addrs.nelts,
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sizeof(ngx_rtmp_conf_addr_t), ngx_rtmp_cmp_conf_addrs);
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addr = port[p].addrs.elts;
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last = port[p].addrs.nelts;
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/*
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* if there is the binding to the "*:port" then we need to bind()
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* to the "*:port" only and ignore the other bindings
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*/
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if (addr[last - 1].wildcard) {
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addr[last - 1].bind = 1;
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bind_wildcard = 1;
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|
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} else {
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bind_wildcard = 0;
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}
|
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|
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i = 0;
|
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|
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while (i < last) {
|
||||
|
||||
if (bind_wildcard && !addr[i].bind) {
|
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i++;
|
||||
continue;
|
||||
}
|
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|
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ls = ngx_create_listening(cf, addr[i].sockaddr, addr[i].socklen);
|
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if (ls == NULL) {
|
||||
return NGX_CONF_ERROR;
|
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}
|
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|
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ls->addr_ntop = 1;
|
||||
ls->handler = ngx_rtmp_init_connection;
|
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ls->pool_size = 256;
|
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|
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/* TODO: error_log directive */
|
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ls->logp = &cf->cycle->new_log;
|
||||
ls->log.data = &ls->addr_text;
|
||||
ls->log.handler = ngx_accept_log_error;
|
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|
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ls->keepalive = addr[i].so_keepalive;
|
||||
#if (NGX_HAVE_KEEPALIVE_TUNABLE)
|
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ls->keepidle = addr[i].tcp_keepidle;
|
||||
ls->keepintvl = addr[i].tcp_keepintvl;
|
||||
ls->keepcnt = addr[i].tcp_keepcnt;
|
||||
#endif
|
||||
|
||||
#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
|
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ls->ipv6only = addr[i].ipv6only;
|
||||
#endif
|
||||
|
||||
mport = ngx_palloc(cf->pool, sizeof(ngx_rtmp_port_t));
|
||||
if (mport == NULL) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
|
||||
ls->servers = mport;
|
||||
|
||||
if (i == last - 1) {
|
||||
mport->naddrs = last;
|
||||
|
||||
} else {
|
||||
mport->naddrs = 1;
|
||||
i = 0;
|
||||
}
|
||||
|
||||
switch (ls->sockaddr->sa_family) {
|
||||
#if (NGX_HAVE_INET6)
|
||||
case AF_INET6:
|
||||
if (ngx_rtmp_add_addrs6(cf, mport, addr) != NGX_OK) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
break;
|
||||
#endif
|
||||
default: /* AF_INET */
|
||||
if (ngx_rtmp_add_addrs(cf, mport, addr) != NGX_OK) {
|
||||
return NGX_CONF_ERROR;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
addr++;
|
||||
last--;
|
||||
}
|
||||
}
|
||||
|
||||
return NGX_CONF_OK;
|
||||
}
|
||||
|
||||
|
||||
static ngx_int_t
|
||||
ngx_rtmp_add_addrs(ngx_conf_t *cf, ngx_rtmp_port_t *mport,
|
||||
ngx_rtmp_conf_addr_t *addr)
|
||||
{
|
||||
u_char *p;
|
||||
size_t len;
|
||||
ngx_uint_t i;
|
||||
ngx_rtmp_in_addr_t *addrs;
|
||||
struct sockaddr_in *sin;
|
||||
u_char buf[NGX_SOCKADDR_STRLEN];
|
||||
|
||||
mport->addrs = ngx_pcalloc(cf->pool,
|
||||
mport->naddrs * sizeof(ngx_rtmp_in_addr_t));
|
||||
if (mport->addrs == NULL) {
|
||||
return NGX_ERROR;
|
||||
}
|
||||
|
||||
addrs = mport->addrs;
|
||||
|
||||
for (i = 0; i < mport->naddrs; i++) {
|
||||
|
||||
sin = (struct sockaddr_in *) addr[i].sockaddr;
|
||||
addrs[i].addr = sin->sin_addr.s_addr;
|
||||
|
||||
addrs[i].conf.ctx = addr[i].ctx;
|
||||
|
||||
len = ngx_sock_ntop(addr[i].sockaddr, buf, NGX_SOCKADDR_STRLEN, 1);
|
||||
|
||||
p = ngx_pnalloc(cf->pool, len);
|
||||
if (p == NULL) {
|
||||
return NGX_ERROR;
|
||||
}
|
||||
|
||||
ngx_memcpy(p, buf, len);
|
||||
|
||||
addrs[i].conf.addr_text.len = len;
|
||||
addrs[i].conf.addr_text.data = p;
|
||||
}
|
||||
|
||||
return NGX_OK;
|
||||
}
|
||||
|
||||
|
||||
#if (NGX_HAVE_INET6)
|
||||
|
||||
static ngx_int_t
|
||||
ngx_rtmp_add_addrs6(ngx_conf_t *cf, ngx_rtmp_port_t *mport,
|
||||
ngx_rtmp_conf_addr_t *addr)
|
||||
{
|
||||
u_char *p;
|
||||
size_t len;
|
||||
ngx_uint_t i;
|
||||
ngx_rtmp_in6_addr_t *addrs6;
|
||||
struct sockaddr_in6 *sin6;
|
||||
u_char buf[NGX_SOCKADDR_STRLEN];
|
||||
|
||||
mport->addrs = ngx_pcalloc(cf->pool,
|
||||
mport->naddrs * sizeof(ngx_rtmp_in6_addr_t));
|
||||
if (mport->addrs == NULL) {
|
||||
return NGX_ERROR;
|
||||
}
|
||||
|
||||
addrs6 = mport->addrs;
|
||||
|
||||
for (i = 0; i < mport->naddrs; i++) {
|
||||
|
||||
sin6 = (struct sockaddr_in6 *) addr[i].sockaddr;
|
||||
addrs6[i].addr6 = sin6->sin6_addr;
|
||||
|
||||
addrs6[i].conf.ctx = addr[i].ctx;
|
||||
|
||||
len = ngx_sock_ntop(addr[i].sockaddr, buf, NGX_SOCKADDR_STRLEN, 1);
|
||||
|
||||
p = ngx_pnalloc(cf->pool, len);
|
||||
if (p == NULL) {
|
||||
return NGX_ERROR;
|
||||
}
|
||||
|
||||
ngx_memcpy(p, buf, len);
|
||||
|
||||
addrs6[i].conf.addr_text.len = len;
|
||||
addrs6[i].conf.addr_text.data = p;
|
||||
}
|
||||
|
||||
return NGX_OK;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
static ngx_int_t
|
||||
ngx_rtmp_cmp_conf_addrs(const void *one, const void *two)
|
||||
{
|
||||
ngx_rtmp_conf_addr_t *first, *second;
|
||||
|
||||
first = (ngx_rtmp_conf_addr_t *) one;
|
||||
second = (ngx_rtmp_conf_addr_t *) two;
|
||||
|
||||
if (first->wildcard) {
|
||||
/* a wildcard must be the last resort, shift it to the end */
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (first->bind && !second->bind) {
|
||||
/* shift explicit bind()ed addresses to the start */
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!first->bind && second->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