2012-03-08 16:21:22 +01:00
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/*
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* Copyright (c) 2012 Roman Arutyunyan
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*/
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#ifndef _NGX_RTMP_H_INCLUDED_
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#define _NGX_RTMP_H_INCLUDED_
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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_event_connect.h>
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2012-03-13 06:41:51 +01:00
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#include "ngx_rtmp_amf0.h"
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2012-03-08 16:21:22 +01:00
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typedef struct {
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void **main_conf;
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void **srv_conf;
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2012-03-23 13:03:32 +01:00
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void **app_conf;
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2012-03-08 16:21:22 +01:00
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} ngx_rtmp_conf_ctx_t;
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typedef struct {
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u_char sockaddr[NGX_SOCKADDRLEN];
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socklen_t socklen;
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/* server ctx */
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ngx_rtmp_conf_ctx_t *ctx;
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unsigned bind:1;
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unsigned wildcard:1;
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#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
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unsigned ipv6only:2;
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#endif
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unsigned so_keepalive:2;
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#if (NGX_HAVE_KEEPALIVE_TUNABLE)
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int tcp_keepidle;
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int tcp_keepintvl;
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int tcp_keepcnt;
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#endif
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} ngx_rtmp_listen_t;
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typedef struct {
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ngx_rtmp_conf_ctx_t *ctx;
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ngx_str_t addr_text;
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} ngx_rtmp_addr_conf_t;
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typedef struct {
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in_addr_t addr;
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ngx_rtmp_addr_conf_t conf;
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} ngx_rtmp_in_addr_t;
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#if (NGX_HAVE_INET6)
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typedef struct {
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struct in6_addr addr6;
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ngx_rtmp_addr_conf_t conf;
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} ngx_rtmp_in6_addr_t;
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#endif
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typedef struct {
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void *addrs;
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ngx_uint_t naddrs;
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} ngx_rtmp_port_t;
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typedef struct {
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int family;
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in_port_t port;
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ngx_array_t addrs; /* array of ngx_rtmp_conf_addr_t */
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} ngx_rtmp_conf_port_t;
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typedef struct {
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struct sockaddr *sockaddr;
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socklen_t socklen;
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ngx_rtmp_conf_ctx_t *ctx;
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unsigned bind:1;
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unsigned wildcard:1;
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#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
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unsigned ipv6only:2;
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#endif
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unsigned so_keepalive:2;
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#if (NGX_HAVE_KEEPALIVE_TUNABLE)
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int tcp_keepidle;
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int tcp_keepintvl;
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int tcp_keepcnt;
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#endif
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} ngx_rtmp_conf_addr_t;
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2012-03-15 07:23:49 +01:00
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#define NGX_RTMP_VERSION 3
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#define NGX_LOG_DEBUG_RTMP NGX_LOG_DEBUG_CORE
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2012-03-12 18:58:00 +01:00
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#define NGX_RTMP_HANDSHAKE_SIZE 1536
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#define NGX_RTMP_DEFAULT_CHUNK_SIZE 128
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2012-03-15 07:23:49 +01:00
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/* RTMP handshake stages */
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#define NGX_RTMP_HS_READ_DATA 0
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#define NGX_RTMP_HS_WRITE_DATA 1
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#define NGX_RTMP_HS_WRITE_ECHO 2
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#define NGX_RTMP_HS_READ_ECHO 3
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2012-03-12 18:58:00 +01:00
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2012-03-15 07:23:49 +01:00
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/* RTMP message types */
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2012-03-12 18:58:00 +01:00
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#define NGX_RTMP_MSG_CHUNK_SIZE 1
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#define NGX_RTMP_MSG_ABORT 2
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#define NGX_RTMP_MSG_ACK 3
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#define NGX_RTMP_MSG_USER 4
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#define NGX_RTMP_MSG_ACK_SIZE 5
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#define NGX_RTMP_MSG_BANDWIDTH 6
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#define NGX_RTMP_MSG_EDGE 7
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#define NGX_RTMP_MSG_AUDIO 8
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#define NGX_RTMP_MSG_VIDEO 9
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#define NGX_RTMP_MSG_AMF3_META 15
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#define NGX_RTMP_MSG_AMF3_SHARED 16
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#define NGX_RTMP_MSG_AMF3_CMD 17
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#define NGX_RTMP_MSG_AMF0_META 18
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#define NGX_RTMP_MSG_AMF0_SHARED 19
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#define NGX_RTMP_MSG_AMF0_CMD 20
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#define NGX_RTMP_MSG_AGGREGATE 22
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2012-03-21 16:08:59 +01:00
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#define NGX_RTMP_MSG_MAX 22
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#define NGX_RTMP_CONNECT NGX_RTMP_MSG_MAX + 1
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#define NGX_RTMP_DISCONNECT NGX_RTMP_MSG_MAX + 2
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#define NGX_RTMP_MAX_EVENT NGX_RTMP_MSG_MAX + 3
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2012-03-12 18:58:00 +01:00
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/* RMTP control message types */
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#define NGX_RTMP_USER_STREAM_BEGIN 0
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#define NGX_RTMP_USER_STREAM_EOF 1
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#define NGX_RTMP_USER_STREAM_DRY 2
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#define NGX_RTMP_USER_SET_BUFLEN 3
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#define NGX_RTMP_USER_RECORDED 4
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#define NGX_RTMP_USER_PING_REQUEST 6
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#define NGX_RTMP_USER_PING_RESPONSE 7
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2012-03-17 23:16:59 +01:00
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#define NGX_RTMP_USER_UNKNOWN 8
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2012-03-12 18:58:00 +01:00
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/* Chunk header:
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* max 3 basic header
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* + max 11 message header
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* + max 4 extended header (timestamp) */
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#define NGX_RTMP_MAX_CHUNK_HEADER 18
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2012-03-08 16:21:22 +01:00
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typedef struct {
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2012-03-09 22:49:09 +01:00
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uint32_t csid; /* chunk stream id */
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2012-03-15 07:23:49 +01:00
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uint32_t timestamp; /* timestamp (delta) */
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2012-03-09 22:49:09 +01:00
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uint32_t mlen; /* message length */
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uint8_t type; /* message type id */
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uint32_t msid; /* message stream id */
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2012-03-12 18:58:00 +01:00
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} ngx_rtmp_header_t;
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2012-03-08 16:21:22 +01:00
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2012-03-16 19:09:04 +01:00
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typedef struct {
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2012-03-14 07:06:47 +01:00
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ngx_rtmp_header_t hdr;
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2012-03-14 17:38:15 +01:00
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uint32_t len; /* current fragment length */
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2012-03-11 17:17:17 +01:00
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ngx_chain_t *in;
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} ngx_rtmp_stream_t;
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2012-03-17 07:12:19 +01:00
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typedef struct {
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2012-03-14 17:38:15 +01:00
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uint32_t signature; /* "RTMP" */ /* <-- FIXME wtf */
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2012-03-08 16:21:22 +01:00
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ngx_connection_t *connection;
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void **ctx;
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void **main_conf;
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void **srv_conf;
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2012-03-23 13:03:32 +01:00
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void **app_conf;
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2012-03-08 16:21:22 +01:00
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2012-03-08 18:45:10 +01:00
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ngx_str_t *addr_text;
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2012-03-23 13:03:32 +01:00
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int connected;
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/* connection parameters */
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ngx_str_t app;
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ngx_str_t flashver;
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ngx_str_t swf_url;
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ngx_str_t tc_url;
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uint32_t acodecs;
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uint32_t vcodecs;
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ngx_str_t page_url;
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2012-03-08 18:45:10 +01:00
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2012-03-15 17:43:03 +01:00
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/* TODO: allocate this bufs from shared pool */
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ngx_buf_t hs_in_buf;
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ngx_buf_t hs_out_buf;
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2012-03-08 16:21:22 +01:00
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ngx_uint_t hs_stage;
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2012-03-15 07:23:49 +01:00
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/* connection timestamps */
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uint32_t epoch;
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uint32_t peer_epoch;
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2012-03-12 18:58:00 +01:00
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/* input stream 0 (reserved by RTMP spec)
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2012-03-15 07:23:49 +01:00
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* is used as free chain link */
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2012-03-12 00:44:32 +01:00
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2012-03-12 18:58:00 +01:00
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ngx_rtmp_stream_t *in_streams;
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2012-03-11 17:17:17 +01:00
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uint32_t in_csid;
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ngx_uint_t in_chunk_size;
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ngx_pool_t *in_pool;
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2012-03-15 17:43:03 +01:00
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uint32_t in_bytes;
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uint32_t in_last_ack;
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2012-03-08 16:21:22 +01:00
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ngx_chain_t *out;
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2012-03-17 07:12:19 +01:00
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ngx_chain_t *out_free_chains;
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2012-03-12 18:58:00 +01:00
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} ngx_rtmp_session_t;
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2012-03-08 16:21:22 +01:00
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2012-03-08 18:45:10 +01:00
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2012-03-21 16:08:59 +01:00
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/* handler result code:
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* NGX_ERROR - error
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2012-03-23 18:29:22 +01:00
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* NGX_OK - success, may continue
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* NGX_DONE - success, input parsed, reply sent; need no
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* more calls on this event */
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2012-03-21 16:08:59 +01:00
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typedef ngx_int_t (*ngx_rtmp_handler_pt)(ngx_rtmp_session_t *s,
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2012-03-12 18:58:00 +01:00
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ngx_rtmp_header_t *h, ngx_chain_t *in);
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2012-03-21 16:08:59 +01:00
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typedef struct {
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ngx_str_t name;
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ngx_rtmp_handler_pt handler;
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} ngx_rtmp_amf0_handler_t;
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2012-03-08 16:21:22 +01:00
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2012-03-12 18:58:00 +01:00
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typedef struct {
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ngx_array_t servers; /* ngx_rtmp_core_srv_conf_t */
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ngx_array_t listen; /* ngx_rtmp_listen_t */
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2012-03-21 16:08:59 +01:00
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ngx_array_t events[NGX_RTMP_MAX_EVENT];
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2012-03-16 19:09:04 +01:00
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ngx_hash_t amf0_hash;
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2012-03-21 16:08:59 +01:00
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ngx_array_t amf0_arrays;
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2012-03-16 19:09:04 +01:00
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ngx_array_t amf0;
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2012-03-12 18:58:00 +01:00
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} ngx_rtmp_core_main_conf_t;
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2012-03-08 16:21:22 +01:00
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2012-03-17 07:12:19 +01:00
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typedef struct ngx_rtmp_core_srv_conf_s {
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2012-03-23 13:03:32 +01:00
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ngx_array_t applications; /* ngx_rtmp_core_app_conf_t */
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2012-03-08 16:21:22 +01:00
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ngx_msec_t timeout;
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ngx_flag_t so_keepalive;
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2012-03-11 17:17:17 +01:00
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ngx_int_t max_streams;
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2012-03-15 17:43:03 +01:00
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ngx_uint_t ack_window;
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2012-03-12 00:44:32 +01:00
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2012-03-18 14:09:19 +01:00
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ngx_int_t chunk_size;
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ngx_pool_t *pool;
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ngx_chain_t *free;
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ngx_chain_t *free_chains;
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size_t max_buf;
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2012-03-21 16:32:18 +01:00
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size_t max_message;
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2012-03-21 22:00:52 +01:00
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ngx_flag_t play_time_fix;
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ngx_flag_t publish_time_fix;
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2012-03-12 00:44:32 +01:00
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ngx_rtmp_conf_ctx_t *ctx;
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2012-03-08 16:21:22 +01:00
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} ngx_rtmp_core_srv_conf_t;
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2012-03-23 13:03:32 +01:00
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typedef struct {
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ngx_str_t name;
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void **app_conf;
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} ngx_rtmp_core_app_conf_t;
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2012-03-08 16:21:22 +01:00
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typedef struct {
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ngx_str_t *client;
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ngx_rtmp_session_t *session;
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} ngx_rtmp_log_ctx_t;
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typedef struct {
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2012-03-12 18:58:00 +01:00
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ngx_int_t (*preconfiguration)(ngx_conf_t *cf);
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ngx_int_t (*postconfiguration)(ngx_conf_t *cf);
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2012-03-08 16:21:22 +01:00
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void *(*create_main_conf)(ngx_conf_t *cf);
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char *(*init_main_conf)(ngx_conf_t *cf, void *conf);
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void *(*create_srv_conf)(ngx_conf_t *cf);
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2012-03-23 13:03:32 +01:00
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char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev,
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void *conf);
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void *(*create_app_conf)(ngx_conf_t *cf);
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char *(*merge_app_conf)(ngx_conf_t *cf, void *prev,
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void *conf);
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2012-03-08 16:21:22 +01:00
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} ngx_rtmp_module_t;
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2012-03-12 00:44:32 +01:00
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#define NGX_RTMP_MODULE 0x504D5452 /* "RTMP" */
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2012-03-08 16:21:22 +01:00
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2012-03-12 00:44:32 +01:00
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#define NGX_RTMP_MAIN_CONF 0x02000000
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#define NGX_RTMP_SRV_CONF 0x04000000
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2012-03-23 13:03:32 +01:00
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#define NGX_RTMP_APP_CONF 0x08000000
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2012-03-08 16:21:22 +01:00
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#define NGX_RTMP_MAIN_CONF_OFFSET offsetof(ngx_rtmp_conf_ctx_t, main_conf)
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#define NGX_RTMP_SRV_CONF_OFFSET offsetof(ngx_rtmp_conf_ctx_t, srv_conf)
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2012-03-23 13:03:32 +01:00
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#define NGX_RTMP_APP_CONF_OFFSET offsetof(ngx_rtmp_conf_ctx_t, app_conf)
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2012-03-08 16:21:22 +01:00
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#define ngx_rtmp_get_module_ctx(s, module) (s)->ctx[module.ctx_index]
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#define ngx_rtmp_set_ctx(s, c, module) s->ctx[module.ctx_index] = c;
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#define ngx_rtmp_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL;
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#define ngx_rtmp_get_module_main_conf(s, module) \
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(s)->main_conf[module.ctx_index]
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#define ngx_rtmp_get_module_srv_conf(s, module) (s)->srv_conf[module.ctx_index]
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2012-03-23 13:03:32 +01:00
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#define ngx_rtmp_get_module_app_conf(s, module) ((s)->app_conf ? \
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(s)->app_conf[module.ctx_index] : NULL)
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2012-03-08 16:21:22 +01:00
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#define ngx_rtmp_conf_get_module_main_conf(cf, module) \
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((ngx_rtmp_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index]
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#define ngx_rtmp_conf_get_module_srv_conf(cf, module) \
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((ngx_rtmp_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index]
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2012-03-29 12:07:57 +02:00
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#define ngx_rtmp_conf_get_module_app_conf(cf, module) \
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((ngx_rtmp_conf_ctx_t *) cf->ctx)->app_conf[module.ctx_index]
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2012-03-08 16:21:22 +01:00
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2012-03-12 18:58:00 +01:00
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2012-03-16 19:09:04 +01:00
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#ifdef NGX_DEBUG
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char* ngx_rtmp_message_type(uint8_t type);
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char* ngx_rtmp_user_message_type(uint16_t evt);
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#endif
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2012-03-08 16:21:22 +01:00
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void ngx_rtmp_init_connection(ngx_connection_t *c);
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2012-03-13 14:51:41 +01:00
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void ngx_rtmp_close_connection(ngx_connection_t *c);
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2012-03-08 16:21:22 +01:00
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u_char * ngx_rtmp_log_error(ngx_log_t *log, u_char *buf, size_t len);
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2012-03-15 07:23:49 +01:00
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uint32_t ngx_rtmp_get_timestamp();
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2012-03-08 16:21:22 +01:00
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2012-03-12 18:58:00 +01:00
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2012-03-20 15:06:19 +01:00
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/* Bit reverse: we need big-endians in many places */
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void * ngx_rtmp_rmemcpy(void *dst, void* src, size_t n);
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#define ngx_rtmp_rcpymem(dst, src, n) \
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(((u_char*)ngx_rtmp_rmemcpy(dst, src, n)) + (n))
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2012-03-12 18:58:00 +01:00
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/* Receiving messages */
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2012-03-13 06:41:51 +01:00
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ngx_int_t ngx_rtmp_protocol_message_handler(ngx_rtmp_session_t *s,
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2012-03-12 18:58:00 +01:00
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ngx_rtmp_header_t *h, ngx_chain_t *in);
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2012-03-13 06:41:51 +01:00
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ngx_int_t ngx_rtmp_user_message_handler(ngx_rtmp_session_t *s,
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2012-03-12 18:58:00 +01:00
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ngx_rtmp_header_t *h, ngx_chain_t *in);
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2012-03-13 06:41:51 +01:00
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ngx_int_t ngx_rtmp_amf0_message_handler(ngx_rtmp_session_t *s,
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2012-03-12 18:58:00 +01:00
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ngx_rtmp_header_t *h, ngx_chain_t *in);
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2012-03-17 07:12:19 +01:00
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/* Shared output buffers */
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ngx_chain_t * ngx_rtmp_alloc_shared_buf(ngx_rtmp_core_srv_conf_t *cscf);
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void ngx_rtmp_free_shared_bufs(ngx_rtmp_core_srv_conf_t *cscf,
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2012-03-14 07:06:47 +01:00
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ngx_chain_t *out);
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2012-03-17 07:12:19 +01:00
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void ngx_rtmp_free_shared_buf(ngx_rtmp_core_srv_conf_t *cscf,
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ngx_buf_t *b);
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void ngx_rtmp_acquire_shared_buf(ngx_buf_t *b);
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ngx_chain_t * ngx_rtmp_append_shared_bufs(ngx_rtmp_core_srv_conf_t *cscf,
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ngx_chain_t *head, ngx_chain_t *in);
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2012-03-16 19:09:04 +01:00
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2012-03-17 07:12:19 +01:00
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/* Sending messages */
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2012-03-13 14:51:41 +01:00
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void ngx_rtmp_prepare_message(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
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2012-03-16 19:09:04 +01:00
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ngx_rtmp_header_t *lh, ngx_chain_t *out);
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2012-03-18 14:09:19 +01:00
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ngx_int_t ngx_rtmp_send_message(ngx_rtmp_session_t *s, ngx_chain_t *out,
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ngx_uint_t priority);
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/* Note on priorities:
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* the bigger value the lower the priority.
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* priority=0 is the highest */
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2012-03-12 00:44:32 +01:00
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#define NGX_RTMP_LIMIT_SOFT 0
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#define NGX_RTMP_LIMIT_HARD 1
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#define NGX_RTMP_LIMIT_DYNAMIC 2
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/* Protocol control messages */
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ngx_int_t ngx_rtmp_send_chunk_size(ngx_rtmp_session_t *s,
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uint32_t chunk_size);
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ngx_int_t ngx_rtmp_send_abort(ngx_rtmp_session_t *s,
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uint32_t csid);
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ngx_int_t ngx_rtmp_send_ack(ngx_rtmp_session_t *s,
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uint32_t seq);
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ngx_int_t ngx_rtmp_send_ack_size(ngx_rtmp_session_t *s,
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uint32_t ack_size);
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2012-03-13 06:41:51 +01:00
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ngx_int_t ngx_rtmp_send_bandwidth(ngx_rtmp_session_t *s,
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2012-03-12 00:44:32 +01:00
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uint32_t ack_size, uint8_t limit_type);
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/* User control messages */
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ngx_int_t ngx_rtmp_send_user_stream_begin(ngx_rtmp_session_t *s,
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uint32_t msid);
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ngx_int_t ngx_rtmp_send_user_stream_eof(ngx_rtmp_session_t *s,
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uint32_t msid);
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ngx_int_t ngx_rtmp_send_user_stream_dry(ngx_rtmp_session_t *s,
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uint32_t msid);
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ngx_int_t ngx_rtmp_send_user_set_buflen(ngx_rtmp_session_t *s,
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uint32_t msid, uint32_t buflen_msec);
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ngx_int_t ngx_rtmp_send_user_recorded(ngx_rtmp_session_t *s,
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uint32_t msid);
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ngx_int_t ngx_rtmp_send_user_ping_request(ngx_rtmp_session_t *s,
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uint32_t timestamp);
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ngx_int_t ngx_rtmp_send_user_ping_response(ngx_rtmp_session_t *s,
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uint32_t timestamp);
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2012-03-17 23:16:59 +01:00
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ngx_int_t ngx_rtmp_send_user_unknown(ngx_rtmp_session_t *s,
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uint32_t timestamp);
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2012-03-12 00:44:32 +01:00
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/* AMF0 sender/receiver */
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2012-03-16 19:09:04 +01:00
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ngx_int_t ngx_rtmp_send_amf0(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
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2012-03-12 00:44:32 +01:00
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ngx_rtmp_amf0_elt_t *elts, size_t nelts);
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2012-03-13 06:41:51 +01:00
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ngx_int_t ngx_rtmp_receive_amf0(ngx_rtmp_session_t *s, ngx_chain_t *in,
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ngx_rtmp_amf0_elt_t *elts, size_t nelts);
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2012-03-12 00:44:32 +01:00
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2012-03-08 16:21:22 +01:00
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extern ngx_uint_t ngx_rtmp_max_module;
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extern ngx_module_t ngx_rtmp_core_module;
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#endif /* _NGX_RTMP_H_INCLUDED_ */
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