Mike Brady
83ae1d286b
If cleanup isn’t finished after one second, exit will occur unconditionally. Use the new exit handler for normal exit, for SIGINT and SIGTERM handling, for abnormal exit after fatal errors, and for handling quit requests from the D-Bus and MPRIS interfaces. When an unfixable error occurs without an installed unfixable error handler, unlock the mutex protecting Shairport Sync’s alsa backend to permit a clean exit. Fix a very low-level mutex-locking error that interfered with debugging. Simplify much mutex lock handling. Remove lots of old and unused code, variables and definitions. Update audio_sndio.c to remove some harmless compiler warnings. Undo adding two seconds for messages to be output before _Exit() on die() to allow messages to be output... Undo making die() exit unconditionally.
4697 lines
183 KiB
C
4697 lines
183 KiB
C
/*
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* RTSP protocol handler. This file is part of Shairport Sync
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* Copyright (c) James Laird 2013
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* Modifications, including those associated with audio synchronization, multithreading and
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* metadata handling copyright (c) Mike Brady 2014--2026
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <arpa/inet.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <ifaddrs.h>
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#include <inttypes.h>
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#include <limits.h>
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#include <memory.h>
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#include <net/if.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <poll.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include "activity_monitor.h"
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#include "config.h"
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#include "utilities/network_utilities.h"
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#include "utilities/rtsp_message_utilities.h"
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#ifdef CONFIG_OPENSSL
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#include <openssl/evp.h>
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#include <openssl/md5.h>
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#endif
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#ifdef CONFIG_MBEDTLS
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#include <mbedtls/md5.h>
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#include <mbedtls/version.h>
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#endif
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#ifdef CONFIG_POLARSSL
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#include <polarssl/md5.h>
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#endif
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#include "bonjour_strings.h"
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#include "common.h"
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#include "player.h"
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#include "rtp.h"
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#include "rtsp.h"
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#ifdef CONFIG_METADATA
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#include "metadata/core.h"
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#include "metadata/pc_queue.h"
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#endif
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#ifdef CONFIG_METADATA_HUB
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#include "metadata/hub.h"
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#endif
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#ifdef AF_INET6
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#define INETx_ADDRSTRLEN INET6_ADDRSTRLEN
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#else
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#define INETx_ADDRSTRLEN INET_ADDRSTRLEN
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#endif
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#ifdef CONFIG_AIRPLAY_2
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#include "ap2_buffered_audio_processor.h"
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#include "ap2_event_receiver.h"
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#include "pair_ap/pair.h"
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#include "plists/get_info_response.h"
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#include "ptp-utilities.h"
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#include <plist/plist.h>
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#ifdef HAVE_LIBPLIST_GE_2_3_0
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#define plist_from_memory(plist_data, length, plist) \
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plist_from_memory((plist_data), (length), (plist), NULL)
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#endif
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#endif
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#ifdef CONFIG_CONVOLUTION
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#include "FFTConvolver/convolver.h"
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#endif
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#ifdef CONFIG_DBUS_INTERFACE
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#include "dbus-service.h"
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#endif
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#include "mdns.h"
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#include "utilities/network_utilities.h"
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enum rtsp_read_request_response {
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rtsp_read_request_response_ok,
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rtsp_read_request_response_pending,
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rtsp_read_request_response_immediate_shutdown_requested,
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rtsp_read_request_response_bad_packet,
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rtsp_read_request_response_channel_closed,
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rtsp_read_request_response_read_error,
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rtsp_read_request_response_error
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};
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rtsp_conn_info *principal_conn = NULL;
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rtsp_conn_info **conns = NULL;
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// always lock this when accessing the principal conn value
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// use a read lock when consulting and holding it
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// use a write lock if you want to change it
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pthread_rwlock_t principal_conn_lock = PTHREAD_RWLOCK_INITIALIZER;
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// always lock this when accessing the list of connection threads
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pthread_mutex_t conns_lock = PTHREAD_MUTEX_INITIALIZER;
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// only one thread is allowed to use the player at once.
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// it monitors the request variable (at least when interrupted)
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// static pthread_mutex_t playing_mutex = PTHREAD_MUTEX_INITIALIZER;
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// static int please_shutdown = 0;
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// static pthread_t playing_thread = 0;
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int RTSP_connection_index = 1;
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// keep track of the threads we have spawned so we can join() them
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static int nconns = 0;
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static void track_thread(rtsp_conn_info *conn) {
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pthread_mutex_lock(&conns_lock);
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// look for an empty slot first
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int i = 0;
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int found = 0;
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while ((i < nconns) && (found == 0)) {
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if (conns[i] == NULL)
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found = 1;
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else
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i++;
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}
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if (found != 0) {
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conns[i] = conn;
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} else {
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// make space for a new element
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conns = realloc(conns, sizeof(rtsp_conn_info *) * (nconns + 1));
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if (conns) {
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conns[nconns] = conn;
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nconns++;
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} else {
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die("could not reallocate memory for conns");
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}
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}
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pthread_mutex_unlock(&conns_lock);
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}
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// note: connection numbers start at 1, so an except_this_one value of zero means "all threads"
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void cancel_all_RTSP_threads(airplay_stream_c stream_category, int except_this_one) {
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// if the stream category is unspecified_stream_category
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// all categories are elegible for cancellation
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// otherwise just the category itself
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pthread_mutex_lock(&conns_lock);
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int i;
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for (i = 0; i < nconns; i++) {
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if ((conns[i] != NULL) && (conns[i]->running != 0) &&
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(conns[i]->connection_number != except_this_one) &&
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((conns[i]->airplay_stream_category == stream_category) ||
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(stream_category == unspecified_stream_category))) {
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pthread_cancel(conns[i]->thread);
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debug(2, "Connection %d: %s cancelled.", conns[i]->connection_number,
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get_category_string(conns[i]->airplay_stream_category));
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}
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}
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for (i = 0; i < nconns; i++) {
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if ((conns[i] != NULL) && (conns[i]->connection_number != except_this_one) &&
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((conns[i]->airplay_stream_category == stream_category) ||
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(stream_category == unspecified_stream_category))) {
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debug(2, "Connection %d: %s joining....", conns[i]->connection_number,
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get_category_string(conns[i]->airplay_stream_category));
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pthread_join(conns[i]->thread, NULL);
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debug(2, "Connection %d: %s joined.", conns[i]->connection_number,
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get_category_string(conns[i]->airplay_stream_category));
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free(conns[i]);
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conns[i] = NULL;
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}
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}
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pthread_mutex_unlock(&conns_lock);
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}
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int old_connection_count = -1;
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void cleanup_threads(void) {
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void *retval;
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int i;
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int connection_count = 0;
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// debug(2, "culling threads.");
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pthread_mutex_lock(&conns_lock);
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for (i = 0; i < nconns; i++) {
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if ((conns[i] != NULL) && (conns[i]->running == 0)) {
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debug(4, "found RTSP connection thread %d in a non-running state.",
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conns[i]->connection_number);
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pthread_join(conns[i]->thread, &retval);
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debug(4, "Connection %d: deleted in cleanup.", conns[i]->connection_number);
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free(conns[i]);
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conns[i] = NULL;
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}
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if (conns[i] != NULL) {
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debug(4, "Airplay Volume for connection %d is %.6f.", conns[i]->connection_number,
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suggested_volume(conns[i]));
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connection_count++;
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}
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}
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pthread_mutex_unlock(&conns_lock);
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if (old_connection_count != connection_count) {
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if (connection_count == 0) {
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debug(4, "No active connections.");
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} else if (connection_count == 1)
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debug(4, "One active connection.");
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else
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debug(4, "%d active connections.", connection_count);
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old_connection_count = connection_count;
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}
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debug(4, "Airplay Volume for new connections is %.6f.", suggested_volume(NULL));
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}
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int terminate_conn(int connection_number) {
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// this will look for a connection by number, cancel it, join it and delete it.
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int found = 0;
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pthread_mutex_lock(&conns_lock);
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// look for an empty slot first
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int i = 0;
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while ((i < nconns) && (found == 0)) {
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if ((conns[i] != NULL) && (conns[i]->connection_number == connection_number)) {
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pthread_cancel(conns[i]->thread);
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pthread_join(conns[i]->thread, NULL);
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conns[i] = NULL;
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found = 1;
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} else
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i++;
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}
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pthread_mutex_unlock(&conns_lock);
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return found;
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}
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// The principal_conn variable points to the connection that
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// controls the mDNS status and flags and that is potentially
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// in control of the playing subsystem to output audio to a backend
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// the principal_conn variable may be NULL
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// the principal_conn is set by an ANNOUNCE message (Classic AirPlay) or
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// by the initial SETUP (of a connection, not of a play session) message (AirPlay 2) and cleared
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// when a session is terminated (AirPlay 2)
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// In AirPlay 2, only one PTP connection can be live at any time, and it is the principal_conn.
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// This is because, in AirPlay 2, the principal_conn connection
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// also has control of the mDNS interface, and thus determines the state of the player as seen by
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// other devices.
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// If a conn has play lock, kill the connection completely.
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void stop_play() {
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pthread_rwlock_wrlock(&principal_conn_lock);
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if (principal_conn != NULL) {
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debug(1, "Connection %d: stop and close this connection.", principal_conn->connection_number);
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terminate_conn(principal_conn->connection_number);
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#ifdef CONFIG_AIRPLAY_2
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config.airplay_statusflags &= (0xffffffff - (1 << 11)); // DeviceSupportsRelay
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if (principal_conn->airplay_gid) {
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free(principal_conn->airplay_gid);
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principal_conn->airplay_gid = NULL; // stop using the client's GID as our GID.
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}
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build_bonjour_strings(principal_conn);
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if (config.service_type == APST_airplay2) {
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mdns_update(NULL, secondary_txt_records);
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}
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#endif
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principal_conn = NULL; // let it go
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debug(1, "Connection successfully closed.");
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}
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pthread_rwlock_unlock(&principal_conn_lock);
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}
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void release_play_lock(rtsp_conn_info *conn) {
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// no need thread cancellation points in here
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pthread_rwlock_wrlock(&principal_conn_lock);
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if ((principal_conn == conn) || (conn == NULL)) { // if we have the player
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if (principal_conn != NULL) {
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#ifdef CONFIG_AIRPLAY_2
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config.airplay_statusflags &= (0xffffffff - (1 << 11)); // DeviceSupportsRelay
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if (principal_conn->airplay_gid) {
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free(principal_conn->airplay_gid);
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principal_conn->airplay_gid = NULL; // stop using the client's GID as our GID.
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}
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build_bonjour_strings(principal_conn);
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if (config.service_type == APST_airplay2) {
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mdns_update(NULL, secondary_txt_records);
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}
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#endif
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debug(2, "Connection %d: %s released principal_conn.", conn->connection_number,
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get_category_string(conn->airplay_stream_category));
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}
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principal_conn = NULL; // let it go
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}
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pthread_rwlock_unlock(&principal_conn_lock);
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}
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// stop the current principal_conn from playing if necessary and make conn the principal_conn.
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// result of trying to acquire or release the play lock
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typedef enum {
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play_lock_released,
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play_lock_already_released,
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play_lock_already_acquired,
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play_lock_acquired_without_breaking_in,
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play_lock_acquired_by_breaking_in,
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play_lock_aquisition_failed
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} play_lock_r;
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play_lock_r get_play_lock(rtsp_conn_info *conn, int allow_session_interruption) {
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play_lock_r response = play_lock_aquisition_failed;
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if (conn != NULL) {
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debug(2, "Connection %d: %s get_play_lock with allow_session_interruption of %d.",
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conn->connection_number, get_category_string(conn->airplay_stream_category),
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allow_session_interruption);
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pthread_rwlock_wrlock(&principal_conn_lock);
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pthread_cleanup_push(rwlock_unlock, (void *)&principal_conn_lock);
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if (principal_conn == conn) {
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debug(2, "Connection %d: %s already has principal_conn.", principal_conn->connection_number,
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get_category_string(conn->airplay_stream_category));
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} else {
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if (principal_conn != NULL)
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debug(2, "Connection %d: %s is requested to relinquish principal_conn.",
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principal_conn->connection_number,
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get_category_string(conn->airplay_stream_category));
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if (conn != NULL)
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debug(2, "Connection %d: %s request to acquire principal_conn.", conn->connection_number,
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get_category_string(conn->airplay_stream_category));
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}
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if (principal_conn == conn) {
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if (conn == NULL)
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response = play_lock_already_released;
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else
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response = play_lock_already_acquired;
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} else if (principal_conn == NULL) {
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// already unlocked, and principal conn not NULL
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principal_conn = conn;
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#ifdef CONFIG_AIRPLAY_2
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config.airplay_statusflags |= (1 << 11); // DeviceSupportsRelay
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#endif
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response = play_lock_acquired_without_breaking_in;
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} else if (allow_session_interruption != 0) { // principal conn not NULL,
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// important -- demote the principal conn before cancelling it
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/*
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if (principal_conn->fd > 0) {
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debug(2,
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"Connection %d: %s is acquiring play_lock and is forcing termination of Connection "
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"%d %s. Closing "
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"RTSP connection socket %d: "
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"from %s:%u to self at "
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"%s:%u.",
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conn->connection_number, get_category_string(conn->airplay_stream_category),
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principal_conn->connection_number,
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get_category_string(principal_conn->airplay_stream_category), principal_conn->fd,
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principal_conn->client_ip_string, principal_conn->client_rtsp_port,
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principal_conn->self_ip_string, principal_conn->self_rtsp_port);
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safe_socket_close(&principal_conn->fd);
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usleep(1000000);
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}
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*/
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debug(4, "Connection %d: about to be terminated.", principal_conn->connection_number);
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rtsp_conn_info *previous_principal_conn = principal_conn;
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principal_conn = conn; // make the conn the new principal_conn
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terminate_conn(previous_principal_conn->connection_number);
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debug(4, "Connection successfully terminated.");
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if (principal_conn == NULL) {
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#ifdef CONFIG_AIRPLAY_2
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config.airplay_statusflags &= (0xffffffff - (1 << 11)); // DeviceSupportsRelay
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if (conn->airplay_gid) {
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free(conn->airplay_gid);
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conn->airplay_gid = NULL; // stop using the client's GID as our GID.
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}
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build_bonjour_strings(conn);
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if (config.service_type == APST_airplay2) {
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mdns_update(NULL, secondary_txt_records);
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}
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#endif
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response = play_lock_released;
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} else {
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#ifdef CONFIG_AIRPLAY_2
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config.airplay_statusflags |= (1 << 11); // DeviceSupportsRelay
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#endif
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response = play_lock_acquired_by_breaking_in;
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}
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// usleep(1000000); // don't know why this delay is needed.
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}
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if ((principal_conn != NULL) && (response != play_lock_already_acquired))
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debug(2, "Connection %d: %s has principal_conn.", conn->connection_number,
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get_category_string(conn->airplay_stream_category));
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pthread_cleanup_pop(1); // release the principal_conn lock
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} else {
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debug(1, "Connection %d: %s get_play_lock must have a non-NULL conn.", conn->connection_number,
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get_category_string(conn->airplay_stream_category));
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}
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return response;
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}
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// park a null at the line ending, and return the next line pointer
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// accept \r, \n, or \r\n
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static char *nextline(char *in, int inbuf) {
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char *out = NULL;
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while (inbuf) {
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if (*in == '\r') {
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*in++ = 0;
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out = in;
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inbuf--;
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}
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if ((*in == '\n') && (inbuf)) {
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*in++ = 0;
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out = in;
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}
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if (out)
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break;
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in++;
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inbuf--;
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}
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return out;
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}
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#ifdef CONFIG_AIRPLAY_2
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static void buf_add(sized_buffer *buf, uint8_t *in, size_t in_len) {
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if (buf->length + in_len > buf->size) {
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buf->size = buf->length + in_len + 2048; // Extra headroom to avoid future memcpy's
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buf->data = realloc(buf->data, buf->size);
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|
}
|
|
memcpy(buf->data + buf->length, in, in_len);
|
|
buf->length += in_len;
|
|
}
|
|
|
|
static void buf_drain(sized_buffer *buf, ssize_t len) {
|
|
if (len < 0 || (size_t)len >= buf->length) {
|
|
free(buf->data);
|
|
memset(buf, 0, sizeof(sized_buffer));
|
|
return;
|
|
}
|
|
memmove(buf->data, buf->data + len, buf->length - len);
|
|
buf->length -= len;
|
|
}
|
|
|
|
static size_t buf_remove(sized_buffer *buf, uint8_t *out, size_t out_len) {
|
|
size_t bytes = (buf->length > out_len) ? out_len : buf->length;
|
|
memcpy(out, buf->data, bytes);
|
|
buf_drain(buf, bytes);
|
|
return bytes;
|
|
}
|
|
|
|
ssize_t read_encrypted(int fd, pair_cipher_bundle *ctx, void *buf, size_t count) {
|
|
ssize_t response = 0;
|
|
// If there is leftover decoded content from the last pass just return that
|
|
if (ctx->plaintext_read_buffer.length > 0) {
|
|
response = buf_remove(&ctx->plaintext_read_buffer, buf, count);
|
|
} else {
|
|
|
|
// Otherwise read stuff in...
|
|
uint8_t in[4096];
|
|
uint8_t *plain = NULL; // may be allocated and reallocated by pair_decrypt
|
|
pthread_cleanup_push(malloc_cleanup, &plain);
|
|
size_t plain_len = 0;
|
|
do {
|
|
response = read(fd, in, sizeof(in));
|
|
if (response > 0) {
|
|
buf_add(&ctx->encrypted_read_buffer, in, response);
|
|
ssize_t consumed = pair_decrypt(&plain, &plain_len, ctx->encrypted_read_buffer.data,
|
|
ctx->encrypted_read_buffer.length, ctx->cipher_ctx);
|
|
if (consumed < 0) {
|
|
debug(1, "read_encrypted: abnormal exit from pair_decrypt: %zd.", consumed);
|
|
response = -1;
|
|
} else {
|
|
buf_drain(&ctx->encrypted_read_buffer, consumed);
|
|
}
|
|
}
|
|
} while ((plain_len == 0) && (response > 0));
|
|
|
|
if (response >= 0) {
|
|
buf_add(&ctx->plaintext_read_buffer, plain, plain_len);
|
|
response = buf_remove(&ctx->plaintext_read_buffer, buf, count);
|
|
}
|
|
pthread_cleanup_pop(1);
|
|
}
|
|
|
|
return response;
|
|
}
|
|
|
|
ssize_t write_encrypted(int fd, pair_cipher_bundle *ctx, const void *buf, size_t count) {
|
|
uint8_t *encrypted;
|
|
size_t encrypted_len;
|
|
|
|
ssize_t ret = pair_encrypt(&encrypted, &encrypted_len, buf, count, ctx->cipher_ctx);
|
|
if (ret < 0) {
|
|
debug(1, "%s", pair_cipher_errmsg(ctx->cipher_ctx));
|
|
return -1;
|
|
}
|
|
|
|
size_t remain = encrypted_len;
|
|
// debug(1, "write to the \"%s\" channel", ctx->description);
|
|
// debug_print_buffer(1, (void *)buf, count);
|
|
// debug(1, "write encrypted:");
|
|
// debug_print_buffer(1, encrypted, encrypted_len);
|
|
while (remain > 0) {
|
|
ssize_t wrote = write(fd, encrypted + (encrypted_len - remain), remain);
|
|
if (wrote <= 0) {
|
|
free(encrypted);
|
|
return wrote;
|
|
}
|
|
remain -= wrote;
|
|
}
|
|
free(encrypted);
|
|
return count;
|
|
}
|
|
|
|
#endif
|
|
|
|
ssize_t read_from_rtsp_connection(rtsp_conn_info *conn, void *buf, size_t count) {
|
|
if (count == 0)
|
|
debug(1, "asking to read zero bytes!");
|
|
|
|
ssize_t result = 0; // closed
|
|
if (conn->fd > 0) {
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
if (conn->ap2_pairing_context.control_cipher_bundle.cipher_ctx) {
|
|
conn->ap2_pairing_context.control_cipher_bundle.is_encrypted = 1;
|
|
result =
|
|
read_encrypted(conn->fd, &conn->ap2_pairing_context.control_cipher_bundle, buf, count);
|
|
|
|
} else {
|
|
result = read(conn->fd, buf, count);
|
|
}
|
|
#else
|
|
result = read(conn->fd, buf, count);
|
|
// In AP1, the RTSP connection is closed in this way, so it's not unexpected
|
|
#endif
|
|
if ((result <= 0) && (errno != 0)) {
|
|
char errorstring[1024];
|
|
strerror_r(errno, (char *)errorstring, sizeof(errorstring));
|
|
debug(3, "read_from_rtsp_connection error %d \"%s\" attempting to read up to %zu bytes.",
|
|
errno, errorstring, count);
|
|
}
|
|
} else {
|
|
debug(1, "Connection %d: attempt to read from a closed RTSP connection.",
|
|
conn->connection_number);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
void set_client_as_ptp_clock(rtsp_conn_info *conn) {
|
|
char timing_list_message[4096] = "";
|
|
strncat(timing_list_message, "T ", sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
strncat(timing_list_message, (const char *)&conn->client_ip_string,
|
|
sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
ptp_send_control_message_string(timing_list_message);
|
|
}
|
|
#endif
|
|
|
|
enum rtsp_read_request_response rtsp_read_request(rtsp_conn_info *conn, rtsp_message **the_packet) {
|
|
enum rtsp_read_request_response reply = rtsp_read_request_response_pending;
|
|
*the_packet = NULL; // need this for error handling
|
|
ssize_t buflen = 4096;
|
|
#ifdef CONFIG_METADATA
|
|
if ((config.metadata_enabled != 0) && (config.get_coverart != 0))
|
|
buflen = 1024 * 256; // big enough for typical picture data, which will be base64 encoded
|
|
#endif
|
|
int release_buffer = 0; // on exit, don't deallocate the buffer if everything was okay
|
|
char *buf = malloc(buflen + 1); // add a NUL at the end
|
|
if (buf == NULL) {
|
|
debug(1, "Connection %d: rtsp_read_request: can't get a buffer.", conn->connection_number);
|
|
reply = rtsp_read_request_response_error;
|
|
} else {
|
|
debug(4, "buf is allocated at 0x%" PRIxPTR ".", (uintptr_t)buf);
|
|
pthread_cleanup_push(malloc_cleanup, &buf);
|
|
ssize_t nread;
|
|
ssize_t inbuf = 0;
|
|
int msg_size = -1;
|
|
|
|
while ((msg_size < 0) && (reply == rtsp_read_request_response_pending)) {
|
|
if (conn->stop != 0) {
|
|
debug(3, "Connection %d: shutdown requested by client.", conn->connection_number);
|
|
reply = rtsp_read_request_response_immediate_shutdown_requested;
|
|
// goto shutdown;
|
|
} else {
|
|
|
|
nread = read_from_rtsp_connection(conn, buf + inbuf, buflen - inbuf);
|
|
|
|
if (nread <= 0) {
|
|
// ETIMEDOUT seems to be from the keepalive having failed.
|
|
// But it does seem as it it's not always sent, e.g. if another read() is outstanding (?)
|
|
// EAGAIN seems to be simply from the read() request timing out.
|
|
if (errno == ETIMEDOUT) {
|
|
debug(1,
|
|
"Connection %d has disappeared. As Yeats almost said, \"Too long a "
|
|
"silence / can make a stone "
|
|
"of the heart\". ETIMEOUT",
|
|
conn->connection_number);
|
|
reply = rtsp_read_request_response_immediate_shutdown_requested;
|
|
} else if (nread == 0) {
|
|
if (errno == 0) {
|
|
// a blocking read that returns zero means eof -- implies connection closed by client
|
|
debug(2, "Connection %d RTSP closed by client.", conn->connection_number);
|
|
} else {
|
|
char errorstring[1024];
|
|
strerror_r(errno, (char *)errorstring, sizeof(errorstring));
|
|
debug(2, "Connection %d RTSP port closed by client with error %d: \"%s\".",
|
|
conn->connection_number, errno, (char *)errorstring);
|
|
}
|
|
safe_socket_close(&conn->fd); // close it from our end too...
|
|
reply = rtsp_read_request_response_channel_closed;
|
|
} else {
|
|
char errorstring[1024];
|
|
strerror_r(errno, (char *)errorstring, sizeof(errorstring));
|
|
debug(1, "Connection %d: rtsp_read_request_response_read_error %d: \"%s\".",
|
|
conn->connection_number, errno, (char *)errorstring);
|
|
reply = rtsp_read_request_response_read_error;
|
|
}
|
|
// goto shutdown;
|
|
} else {
|
|
|
|
/* // this outputs the message received
|
|
{
|
|
void *pt = malloc(nread+1);
|
|
memset(pt, 0, nread+1);
|
|
memcpy(pt, buf + inbuf, nread);
|
|
debug(1, "Incoming string on port: \"%s\"",pt);
|
|
free(pt);
|
|
}
|
|
*/
|
|
inbuf += nread;
|
|
|
|
char *next;
|
|
while ((reply == rtsp_read_request_response_pending) && (msg_size < 0) &&
|
|
(next = nextline(buf, inbuf))) {
|
|
msg_size = msg_handle_line(the_packet, buf);
|
|
if (!(*the_packet)) {
|
|
debug(1, "Connection %d: rtsp_read_request can't find an RTSP header.",
|
|
conn->connection_number);
|
|
reply = rtsp_read_request_response_bad_packet;
|
|
// goto shutdown;
|
|
} else {
|
|
inbuf -= next - buf;
|
|
if (inbuf)
|
|
memmove(buf, next, inbuf);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((reply == rtsp_read_request_response_pending) && (msg_size > 0)) {
|
|
// more input is needed...
|
|
uint64_t threshold_time =
|
|
get_absolute_time_in_ns() + ((uint64_t)15000000000); // i.e. fifteen seconds from now
|
|
int warning_message_sent = 0;
|
|
|
|
if (msg_size > buflen) {
|
|
buf = realloc(buf, msg_size + 1);
|
|
if (buf == NULL) {
|
|
warn("Connection %d: too much content.", conn->connection_number);
|
|
reply = rtsp_read_request_response_error;
|
|
// goto shutdown;
|
|
} else {
|
|
debug(4, "buf is reallocated at 0x%" PRIxPTR ".", (uintptr_t)buf);
|
|
buflen = msg_size;
|
|
}
|
|
}
|
|
|
|
// const size_t max_read_chunk = 1024 * 1024 / 16;
|
|
while ((inbuf < msg_size) && (reply == rtsp_read_request_response_pending)) {
|
|
|
|
// we are going to read the stream in chunks and time how long it takes to
|
|
// do so.
|
|
// If it's taking too long, (and we find out about it), we will send an
|
|
// error message as
|
|
// metadata
|
|
|
|
if (warning_message_sent == 0) {
|
|
uint64_t time_now = get_absolute_time_in_ns();
|
|
if (time_now > threshold_time) { // it's taking too long
|
|
debug(1, "Error receiving metadata from source -- transmission seems "
|
|
"to be stalled.");
|
|
#ifdef CONFIG_METADATA
|
|
send_ssnc_metadata('stal', NULL, 0, 1);
|
|
#endif
|
|
warning_message_sent = 1;
|
|
}
|
|
}
|
|
|
|
if (conn->stop != 0) {
|
|
debug(1, "RTSP shutdown requested.");
|
|
reply = rtsp_read_request_response_immediate_shutdown_requested;
|
|
// goto shutdown;
|
|
} else {
|
|
size_t read_chunk = msg_size - inbuf;
|
|
// if (read_chunk > max_read_chunk)
|
|
// read_chunk = max_read_chunk;
|
|
// usleep(80000); // wait about 80 milliseconds between reads of up to max_read_chunk
|
|
nread = read_from_rtsp_connection(conn, buf + inbuf, read_chunk);
|
|
|
|
if (nread <= 0) {
|
|
// ETIMEDOUT seems to be from the keepalive having failed.
|
|
// But it does seem as it it's not always sent, e.g. if another read() is outstanding
|
|
// (?) EAGAIN seems to be simply from the read() request timing out.
|
|
if (errno == ETIMEDOUT) {
|
|
debug(1,
|
|
"Connection %d has disappeared. As Yeats almost said, \"Too long a "
|
|
"silence / can make a stone "
|
|
"of the heart\". ETIMEOUT",
|
|
conn->connection_number);
|
|
reply = rtsp_read_request_response_immediate_shutdown_requested;
|
|
// Note: the socket will be closed when the thread exits
|
|
} else if (nread == 0) {
|
|
if (errno == 0) {
|
|
// a blocking read that returns zero means eof -- implies connection closed by
|
|
// client
|
|
debug(1, "Connection %d closed by client.", conn->connection_number);
|
|
} else {
|
|
char errorstring[1024];
|
|
strerror_r(errno, (char *)errorstring, sizeof(errorstring));
|
|
debug(1, "Connection %d closed by client with error %d: \"%s\".",
|
|
conn->connection_number, errno, (char *)errorstring);
|
|
}
|
|
reply = rtsp_read_request_response_channel_closed;
|
|
// Note: the socket will be closed when the thread exits
|
|
} else {
|
|
char errorstring[1024];
|
|
strerror_r(errno, (char *)errorstring, sizeof(errorstring));
|
|
debug(1, "Connection %d: rtsp_read_request_response_read_error %d: \"%s\".",
|
|
conn->connection_number, errno, (char *)errorstring);
|
|
reply = rtsp_read_request_response_read_error;
|
|
}
|
|
// goto shutdown;
|
|
} else {
|
|
inbuf += nread;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (reply == rtsp_read_request_response_pending) {
|
|
reply = rtsp_read_request_response_ok;
|
|
rtsp_message *msg = *the_packet;
|
|
msg->contentlength = inbuf;
|
|
msg->content = buf;
|
|
char *jp = inbuf + buf;
|
|
*jp = '\0';
|
|
*the_packet = msg;
|
|
}
|
|
|
|
// shutdown:
|
|
if (reply != rtsp_read_request_response_ok) {
|
|
if (*the_packet != NULL) {
|
|
debug(3, "Freeing the_packet");
|
|
msg_free(the_packet);
|
|
}
|
|
release_buffer = 1; // allow the buffer to be released
|
|
}
|
|
pthread_cleanup_pop(release_buffer);
|
|
}
|
|
return reply;
|
|
}
|
|
|
|
int msg_write_response(rtsp_conn_info *conn, rtsp_message *resp) {
|
|
char pkt[4096];
|
|
int pktfree = sizeof(pkt);
|
|
char *p = pkt;
|
|
int n;
|
|
unsigned int i;
|
|
|
|
struct response_t {
|
|
int code;
|
|
char *string;
|
|
};
|
|
|
|
struct response_t responses[] = {{200, "OK"},
|
|
{400, "Bad Request"},
|
|
{403, "Unauthorized"},
|
|
{404, "Not Found"},
|
|
{451, "Unavailable"},
|
|
{456, "Header Field Not Valid for Resource"},
|
|
{470, "Connection Authorization Required"},
|
|
{500, "Internal Server Error"},
|
|
{501, "Not Implemented"}};
|
|
// 451 is really "Unavailable For Legal Reasons"!
|
|
int found = 0;
|
|
char *respcode_text = "Unauthorized";
|
|
for (i = 0; i < sizeof(responses) / sizeof(struct response_t); i++) {
|
|
if (resp->respcode == responses[i].code) {
|
|
found = 1;
|
|
respcode_text = responses[i].string;
|
|
}
|
|
}
|
|
|
|
if (found == 0)
|
|
debug(1, "can't find text for response code %d. Using \"%s\" instead.", resp->respcode,
|
|
respcode_text);
|
|
|
|
n = snprintf(p, pktfree, "RTSP/1.0 %d %s\r\n", resp->respcode, respcode_text);
|
|
pktfree -= n;
|
|
p += n;
|
|
|
|
for (i = 0; i < resp->nheaders; i++) {
|
|
// debug(3, " %s: %s.", resp->name[i], resp->value[i]);
|
|
n = snprintf(p, pktfree, "%s: %s\r\n", resp->name[i], resp->value[i]);
|
|
pktfree -= n;
|
|
p += n;
|
|
if (pktfree <= 1024) {
|
|
debug(1, "Attempted to write overlong RTSP packet 1");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
// Here, if there's content, write the Content-Length header ...
|
|
|
|
// if (resp->contentlength) {
|
|
{
|
|
// debug(2, "Responding with content of length %d", resp->contentlength);
|
|
n = snprintf(p, pktfree, "Content-Length: %d\r\n", resp->contentlength);
|
|
pktfree -= n;
|
|
p += n;
|
|
if (pktfree <= 1024) {
|
|
debug(1, "Attempted to write overlong RTSP packet 2");
|
|
return -2;
|
|
}
|
|
}
|
|
|
|
n = snprintf(p, pktfree, "\r\n");
|
|
pktfree -= n;
|
|
p += n;
|
|
|
|
if (resp->contentlength) {
|
|
memcpy(p, resp->content, resp->contentlength);
|
|
pktfree -= resp->contentlength;
|
|
p += resp->contentlength;
|
|
}
|
|
|
|
if (pktfree <= 1024) {
|
|
debug(1, "Attempted to write overlong RTSP packet 3");
|
|
return -3;
|
|
}
|
|
|
|
// here, if the link is encrypted, better do it
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
ssize_t reply;
|
|
if (conn->ap2_pairing_context.control_cipher_bundle.is_encrypted) {
|
|
reply =
|
|
write_encrypted(conn->fd, &conn->ap2_pairing_context.control_cipher_bundle, pkt, p - pkt);
|
|
} else {
|
|
reply = write(conn->fd, pkt, p - pkt);
|
|
}
|
|
#else
|
|
ssize_t reply = write(conn->fd, pkt, p - pkt);
|
|
#endif
|
|
|
|
if (reply == -1) {
|
|
char errorstring[1024];
|
|
strerror_r(errno, (char *)errorstring, sizeof(errorstring));
|
|
debug(1, "msg_write_response error %d: \"%s\".", errno, (char *)errorstring);
|
|
return -4;
|
|
}
|
|
if (reply != p - pkt) {
|
|
debug(1, "msg_write_response error -- requested bytes: %zd not fully written: %zd.", p - pkt,
|
|
reply);
|
|
return -5;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
void handle_record_2(rtsp_conn_info *conn, __attribute((unused)) rtsp_message *req,
|
|
rtsp_message *resp) {
|
|
debug(2, "Connection %d: RECORD (AP2) on %s", conn->connection_number,
|
|
get_category_string(conn->airplay_stream_category));
|
|
debug_log_rtsp_message_conn(conn, 2, "RECORD (AP2) incoming message", req);
|
|
msg_add_header(resp, "Audio-Latency", "0");
|
|
resp->respcode = 200;
|
|
}
|
|
#endif
|
|
|
|
void handle_record(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug(1, "Connection %d: RECORD", conn->connection_number);
|
|
if ((conn != NULL) && (principal_conn == conn)) {
|
|
if (conn->player_thread)
|
|
warn("Connection %d: RECORD: Duplicate RECORD message -- ignored", conn->connection_number);
|
|
else {
|
|
activity_monitor_signify_activity(1);
|
|
player_play(conn); // the thread better be 0
|
|
}
|
|
|
|
resp->respcode = 200;
|
|
// I think this is for telling the client what the absolute minimum latency
|
|
// actually is,
|
|
// and when the client specifies a latency, it should be added to this figure.
|
|
|
|
// Thus, [the old version of] AirPlay's latency figure of 77175, when added to 11025 gives you
|
|
// exactly 88200
|
|
// and iTunes' latency figure of 88553, when added to 11025 gives you 99578,
|
|
// pretty close to the 99400 we guessed.
|
|
|
|
msg_add_header(resp, "Audio-Latency", "11025");
|
|
|
|
char *p;
|
|
uint32_t rtptime = 0;
|
|
char *hdr = msg_get_header(req, "RTP-Info");
|
|
|
|
if (hdr) {
|
|
// debug(1,"FLUSH message received: \"%s\".",hdr);
|
|
// get the rtp timestamp
|
|
p = strstr(hdr, "rtptime=");
|
|
if (p) {
|
|
p = strchr(p, '=');
|
|
if (p) {
|
|
rtptime = uatoi(p + 1); // unsigned integer -- up to 2^32-1
|
|
// rtptime--;
|
|
// debug(1,"RTSP Flush Requested by handle_record: %u.",rtptime);
|
|
player_flush(rtptime, conn);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
warn("Connection %d RECORD received without having the player (no ANNOUNCE?)",
|
|
conn->connection_number);
|
|
resp->respcode = 451;
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
|
|
int add_pstring_to_malloc(const char *s, void **allocation, size_t *size) {
|
|
int response = 0;
|
|
void *p = *allocation;
|
|
if (p == NULL) {
|
|
p = malloc(strlen(s) + 1);
|
|
if (p == NULL) {
|
|
debug(1, "error allocating memory");
|
|
} else {
|
|
*allocation = p;
|
|
*size = *size + strlen(s) + 1;
|
|
uint8_t *b = (uint8_t *)p;
|
|
*b = strlen(s);
|
|
p = p + 1;
|
|
memcpy(p, s, strlen(s));
|
|
response = 1;
|
|
}
|
|
} else {
|
|
p = realloc(p, *size + strlen(s) + 1);
|
|
if (p == NULL) { // assuming we never allocate a zero byte space
|
|
debug(1, "error reallocating memory");
|
|
} else {
|
|
*allocation = p;
|
|
uint8_t *b = (uint8_t *)p + *size;
|
|
*b = strlen(s);
|
|
p = p + *size + 1;
|
|
memcpy(p, s, strlen(s));
|
|
*size = *size + strlen(s) + 1;
|
|
response = 1;
|
|
}
|
|
}
|
|
return response;
|
|
}
|
|
|
|
void generateTxtDataValueInfo(rtsp_conn_info *conn, void **response, size_t *responseLength) {
|
|
void *qualifier_response_data = NULL;
|
|
size_t qualifier_response_data_length = 0;
|
|
char localString[256];
|
|
if (add_pstring_to_malloc("acl=0", &qualifier_response_data, &qualifier_response_data_length) ==
|
|
0)
|
|
debug(1, "Problem");
|
|
if (add_pstring_to_malloc("btaddr=00:00:00:00:00:00", &qualifier_response_data,
|
|
&qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
if (add_pstring_to_malloc(
|
|
bnprintf(localString, sizeof(localString), "deviceid=%s", config.airplay_device_id),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
if (add_pstring_to_malloc(
|
|
bnprintf(localString, sizeof(localString), "fex=%s", config.airplay_fex),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
/*
|
|
uint64_t features_hi = 0x0001C340445D0A00L;
|
|
features_hi = (features_hi >> 32) & 0xffffffff;
|
|
uint64_t features_lo = 0x0001C340445D0A00L;
|
|
features_lo = features_lo & 0xffffffff;
|
|
*/
|
|
|
|
uint64_t features_hi = config.airplay_features;
|
|
features_hi = (features_hi >> 32) & 0xffffffff;
|
|
uint64_t features_lo = config.airplay_features;
|
|
features_lo = features_lo & 0xffffffff;
|
|
|
|
if (add_pstring_to_malloc(bnprintf(localString, sizeof(localString),
|
|
"features=0x%" PRIX64 ",0x%" PRIX64 "", features_lo,
|
|
features_hi),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
// if (add_pstring_to_malloc("rsf=0x0", &qualifier_response_data,
|
|
// &qualifier_response_data_length) == 0)
|
|
// debug(1, "Problem");
|
|
|
|
if (add_pstring_to_malloc(
|
|
bnprintf(localString, sizeof(localString), "flags=0x%x", config.airplay_statusflags),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
if ((conn != NULL) && (conn->airplay_gid != 0)) {
|
|
snprintf(localString, sizeof(localString), "gid=%s", conn->airplay_gid);
|
|
} else {
|
|
snprintf(localString, sizeof(localString), "gid=%s", config.airplay_pi);
|
|
}
|
|
|
|
if (add_pstring_to_malloc(localString, &qualifier_response_data,
|
|
&qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
int gcgl = 0;
|
|
if (conn != NULL)
|
|
gcgl = conn->groupContainsGroupLeader;
|
|
|
|
// should have igl here;
|
|
if (add_pstring_to_malloc(bnprintf(localString, sizeof(localString), "igl=%d", 0),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
if (add_pstring_to_malloc(bnprintf(localString, sizeof(localString), "gcgl=%d", gcgl),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
if (add_pstring_to_malloc(
|
|
bnprintf(localString, sizeof(localString), "pgid=%s", config.airplay_pgid),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
|
|
if (add_pstring_to_malloc(bnprintf(localString, sizeof(localString), "pgcgl=%d", gcgl),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
if (add_pstring_to_malloc(bnprintf(localString, sizeof(localString), "model=%s", config.model),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
if (add_pstring_to_malloc("protovers=1.1", &qualifier_response_data,
|
|
&qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
if (add_pstring_to_malloc(bnprintf(localString, sizeof(localString), "pi=%s", config.airplay_pi),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
if (add_pstring_to_malloc(
|
|
bnprintf(localString, sizeof(localString), "psi=%s", config.airplay_psi),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
if (add_pstring_to_malloc(bnprintf(localString, sizeof(localString), "pk=%s", config.pk_string),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
if (add_pstring_to_malloc(
|
|
bnprintf(localString, sizeof(localString), "srcvers=%s", config.srcvers),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
if (add_pstring_to_malloc(bnprintf(localString, sizeof(localString), "osvers=%s", config.osvers),
|
|
&qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
if (add_pstring_to_malloc("vv=2", &qualifier_response_data, &qualifier_response_data_length) == 0)
|
|
debug(1, "Problem");
|
|
|
|
*response = qualifier_response_data;
|
|
*responseLength = qualifier_response_data_length;
|
|
}
|
|
|
|
plist_t generateInfoPlist(rtsp_conn_info *conn) {
|
|
plist_t response_plist = NULL;
|
|
|
|
plist_from_memory((const char *)get_info_response_plist, get_info_response_plist_len,
|
|
&response_plist);
|
|
|
|
if (response_plist == NULL) {
|
|
debug(1, "generateInfoPlist plist not created!");
|
|
} else {
|
|
pthread_rwlock_rdlock(&principal_conn_lock); // don't let the principal_conn be changed
|
|
pthread_cleanup_push(rwlock_unlock, (void *)&principal_conn_lock);
|
|
|
|
// debug(1,"qualifier_response_data_length: %u.", qualifier_response_data_length);
|
|
|
|
plist_dict_set_item(response_plist, "psi", plist_new_string(config.airplay_psi));
|
|
|
|
plist_dict_set_item(response_plist, "featuresEx", plist_new_string(config.airplay_fex));
|
|
|
|
plist_dict_set_item(response_plist, "features", plist_new_uint(config.airplay_features));
|
|
plist_dict_set_item(response_plist, "statusFlags", plist_new_uint(config.airplay_statusflags));
|
|
plist_dict_set_item(response_plist, "deviceID", plist_new_string(config.airplay_device_id));
|
|
plist_dict_set_item(response_plist, "pi", plist_new_string(config.airplay_pi));
|
|
plist_dict_set_item(response_plist, "name", plist_new_string(config.service_name));
|
|
plist_dict_set_item(response_plist, "model", plist_new_string(config.model));
|
|
plist_dict_set_item(response_plist, "pk",
|
|
plist_new_data((const char *)config.airplay_pk, sizeof(config.airplay_pk)));
|
|
char senderAddress[256];
|
|
snprintf(senderAddress, sizeof(senderAddress), "%s:%u", conn->client_ip_string,
|
|
conn->client_rtsp_port);
|
|
plist_dict_set_item(response_plist, "senderAddress", plist_new_string(senderAddress));
|
|
plist_dict_set_item(response_plist, "initialVolume", plist_new_real(suggested_volume(conn)));
|
|
plist_dict_set_item(response_plist, "sourceVersion", plist_new_string(config.srcvers));
|
|
pthread_cleanup_pop(1); // release the principal_conn lock
|
|
// Create a dictionary of supported formats for the bufferStream
|
|
uint64_t bufferStreamFormats = 0L;
|
|
// bufferStreamFormats = 0xF7FE000E00000000; // don't know what these do (from the HPm)
|
|
plist_t supported_formats_plist = plist_new_dict();
|
|
if (supported_formats_plist != NULL) {
|
|
plist_dict_set_item(supported_formats_plist, "audioStream", plist_new_uint(21235712));
|
|
{
|
|
bufferStreamFormats |= 0x00000400000L; // AAC-LC/44.1K/F24/2
|
|
bufferStreamFormats |= 0x40000; // ALAC/44100/S16/2
|
|
}
|
|
|
|
{
|
|
bufferStreamFormats |= 0x00000200000L; // ALAC/48K/F24/2
|
|
bufferStreamFormats |= 0x00000800000L; // AAC-LC/48K/F24/2
|
|
}
|
|
{
|
|
if (config.eight_channel_layout != 0)
|
|
bufferStreamFormats |= 0x10000000000L; // AAC-LC/48K/F24/7.1
|
|
if (config.six_channel_layout != 0)
|
|
bufferStreamFormats |= 0x08000000000L; // AAC-LC/48K/F24/5.1
|
|
}
|
|
plist_dict_set_item(supported_formats_plist, "bufferStream",
|
|
plist_new_uint(bufferStreamFormats));
|
|
debug(4, "bufferedStream formats: 0x%" PRIX64 ".", bufferStreamFormats);
|
|
plist_dict_set_item(response_plist, "supportedFormats", supported_formats_plist);
|
|
}
|
|
}
|
|
return response_plist;
|
|
}
|
|
|
|
void handle_get_info(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug_log_rtsp_message(3, "GET /info:", req);
|
|
if (rtsp_message_contains_plist(req)) { // it's stage one
|
|
// get version of AirPlay -- it might be too old. Not using it yet.
|
|
char *hdr = msg_get_header(req, "User-Agent");
|
|
if (hdr) {
|
|
if (strstr(hdr, "AirPlay/") == hdr) {
|
|
hdr = hdr + strlen("AirPlay/");
|
|
// double airplay_version = 0.0;
|
|
// airplay_version = atof(hdr);
|
|
debug(3, "Connection %d: GET_INFO: Source AirPlay Version is: %s.", conn->connection_number,
|
|
hdr);
|
|
}
|
|
}
|
|
|
|
// in Stage 1, look for the DACP and Active-Remote
|
|
char *ar = msg_get_header(req, "Active-Remote");
|
|
if (ar) {
|
|
debug(3, "Connection %d: GET /info -- Active-Remote string seen: \"%s\".",
|
|
conn->connection_number, ar);
|
|
// get the active remote
|
|
if (conn->dacp_active_remote) // this is in case SETUP was previously called
|
|
free(conn->dacp_active_remote);
|
|
conn->dacp_active_remote = strdup(ar);
|
|
#ifdef CONFIG_METADATA
|
|
send_metadata('ssnc', 'acre', ar, strlen(ar), req, 1);
|
|
#endif
|
|
} else {
|
|
debug(3, "Connection %d: GET /info -- doesn't include Active-Remote information.",
|
|
conn->connection_number);
|
|
if (conn->dacp_active_remote) { // this is in case GET /info was previously called
|
|
free(conn->dacp_active_remote);
|
|
conn->dacp_active_remote = NULL;
|
|
}
|
|
}
|
|
|
|
ar = msg_get_header(req, "DACP-ID");
|
|
if (ar) {
|
|
debug(3, "Connection %d: GET /info -- DACP-ID string seen: \"%s\".", conn->connection_number,
|
|
ar);
|
|
if (conn->dacp_id) // this is in case SETUP was previously called
|
|
free(conn->dacp_id);
|
|
conn->dacp_id = strdup(ar);
|
|
#ifdef CONFIG_METADATA
|
|
send_metadata('ssnc', 'daid', ar, strlen(ar), req, 1);
|
|
#endif
|
|
} else {
|
|
debug(3, "Connection %d: GET /info -- doesn't include DACP-ID string information.",
|
|
conn->connection_number);
|
|
if (conn->dacp_id) { // this is in case GET /info was previously called
|
|
free(conn->dacp_id);
|
|
conn->dacp_id = NULL;
|
|
}
|
|
}
|
|
|
|
plist_t info_plist = NULL;
|
|
plist_from_memory(req->content, req->contentlength, &info_plist);
|
|
|
|
plist_t qualifier = plist_dict_get_item(info_plist, "qualifier");
|
|
if (qualifier == NULL) {
|
|
debug(1, "GET /info Stage 1: plist->qualifier was NULL");
|
|
goto user_fail;
|
|
}
|
|
if (plist_array_get_size(qualifier) < 1) {
|
|
debug(1, "GET /info Stage 1: plist->qualifier array length < 1");
|
|
goto user_fail;
|
|
}
|
|
plist_t qualifier_array_value = plist_array_get_item(qualifier, 0);
|
|
char *qualifier_array_val_cstr;
|
|
plist_get_string_val(qualifier_array_value, &qualifier_array_val_cstr);
|
|
if (qualifier_array_val_cstr == NULL) {
|
|
debug(1, "GET /info Stage 1: first item in qualifier array not a string");
|
|
goto user_fail;
|
|
}
|
|
debug(3, "GET /info Stage 1: qualifier: %s", qualifier_array_val_cstr);
|
|
plist_free(info_plist);
|
|
free(qualifier_array_val_cstr);
|
|
|
|
plist_t response_plist = generateInfoPlist(conn);
|
|
|
|
if (response_plist == NULL)
|
|
goto user_fail;
|
|
|
|
void *txtData = NULL;
|
|
size_t txtDataLength = 0;
|
|
generateTxtDataValueInfo(conn, &txtData, &txtDataLength);
|
|
plist_dict_set_item(response_plist, "txtAirPlay", plist_new_data(txtData, txtDataLength));
|
|
free(txtData);
|
|
plist_to_bin(response_plist, &resp->content, &resp->contentlength);
|
|
if (resp->contentlength == 0)
|
|
debug(1, "GET /info Stage 1: response bplist not created!");
|
|
plist_free(response_plist);
|
|
/*
|
|
free(qualifier_response_data);
|
|
*/
|
|
|
|
msg_add_header(resp, "Content-Type", "application/x-apple-binary-plist");
|
|
resp->respcode = 200;
|
|
debug_log_rtsp_message(3, "GET /info Stage 1 Response:", resp);
|
|
return;
|
|
|
|
user_fail:
|
|
resp->respcode = 400;
|
|
return;
|
|
} else { // stage two
|
|
plist_t response_plist = generateInfoPlist(conn);
|
|
|
|
if (response_plist == NULL)
|
|
goto user_fail;
|
|
|
|
void *txtData = NULL;
|
|
size_t txtDataLength = 0;
|
|
generateTxtDataValueInfo(conn, &txtData, &txtDataLength);
|
|
plist_dict_set_item(response_plist, "txtAirPlay", plist_new_data(txtData, txtDataLength));
|
|
free(txtData);
|
|
plist_to_bin(response_plist, &resp->content, &resp->contentlength);
|
|
plist_free(response_plist);
|
|
msg_add_header(resp, "Content-Type", "application/x-apple-binary-plist");
|
|
resp->respcode = 200;
|
|
debug_log_rtsp_message(3, "GET /info Stage 2 Response", resp);
|
|
return;
|
|
}
|
|
}
|
|
|
|
void handle_flushbuffered(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug(2, "Connection %d: FLUSHBUFFERED %s : Content-Length %d", conn->connection_number,
|
|
req->path, req->contentlength);
|
|
debug_log_rtsp_message(3, "FLUSHBUFFERED request", req);
|
|
|
|
uint64_t flushFromSeq = 0;
|
|
uint64_t flushFromTS = 0;
|
|
uint64_t flushUntilSeq = 0;
|
|
uint64_t flushUntilTS = 0;
|
|
int flushFromValid = 0;
|
|
plist_t messagePlist = plist_from_rtsp_content(req);
|
|
if (messagePlist != NULL) {
|
|
plist_t item = plist_dict_get_item(messagePlist, "flushFromSeq");
|
|
if (item == NULL) {
|
|
debug(4, "Can't find a flushFromSeq");
|
|
} else {
|
|
flushFromValid = 1;
|
|
plist_get_uint_val(item, &flushFromSeq);
|
|
debug(3, "flushFromSeq is %" PRId64 ".", flushFromSeq & 0x7fffff);
|
|
}
|
|
|
|
item = plist_dict_get_item(messagePlist, "flushFromTS");
|
|
if (item == NULL) {
|
|
if (flushFromValid != 0)
|
|
debug(1, "flushFromSeq without flushFromTS!");
|
|
else
|
|
debug(4, "Can't find a flushFromTS");
|
|
} else {
|
|
plist_get_uint_val(item, &flushFromTS);
|
|
if (flushFromValid == 0)
|
|
debug(1, "flushFromTS without flushFromSeq!");
|
|
debug(3, "flushFromTS is %" PRId64 ".", flushFromTS);
|
|
}
|
|
|
|
item = plist_dict_get_item(messagePlist, "flushUntilSeq");
|
|
if (item == NULL) {
|
|
debug(1, "Can't find the flushUntilSeq");
|
|
} else {
|
|
plist_get_uint_val(item, &flushUntilSeq);
|
|
debug(4, "flushUntilSeq is %" PRId64 ".", flushUntilSeq & 0x7fffff);
|
|
}
|
|
|
|
item = plist_dict_get_item(messagePlist, "flushUntilTS");
|
|
if (item == NULL) {
|
|
debug(1, "Can't find the flushUntilTS");
|
|
} else {
|
|
plist_get_uint_val(item, &flushUntilTS);
|
|
debug(4, "flushUntilTS is %" PRId64 ".", flushUntilTS);
|
|
}
|
|
|
|
pthread_mutex_lock(&conn->flush_mutex);
|
|
|
|
if (flushFromValid == 0) {
|
|
// an immediate flush is requested
|
|
conn->ap2_immediate_flush_requested = 1;
|
|
conn->ap2_immediate_flush_until_sequence_number = flushUntilSeq & 0x7fffff;
|
|
conn->ap2_immediate_flush_until_rtp_timestamp = flushUntilTS;
|
|
debug(2,
|
|
"Connection %d: immediate flush request created: flushUntilTS: %" PRIu64
|
|
", flushUntilSeq: %" PRIu64 ".",
|
|
conn->connection_number, flushUntilTS, flushUntilSeq & 0x7fffff);
|
|
conn->ap2_play_enabled = 0; // stop trying to play audio
|
|
// ptp_send_control_message_string(
|
|
// "P"); // "P"ause signify clock no longer valid and will be restarted by a subsequent
|
|
// play
|
|
// debug(1, "FLUSHBUFFERED calling reset_ptp_anchor_info");
|
|
reset_ptp_anchor_info(
|
|
conn); // stop the clock for an immediate flush until it is restarted using SETRATEANCHORI
|
|
} else {
|
|
// look for a record slot that isn't in use
|
|
unsigned int i = 0;
|
|
unsigned int found = 0;
|
|
while ((i < MAX_DEFERRED_FLUSH_REQUESTS) && (found == 0)) {
|
|
if (conn->ap2_deferred_flush_requests[i].inUse == 0) {
|
|
found = 1;
|
|
} else {
|
|
i++;
|
|
}
|
|
}
|
|
if (found != 0) {
|
|
conn->ap2_deferred_flush_requests[i].inUse = 1;
|
|
conn->ap2_deferred_flush_requests[i].active = 0;
|
|
conn->ap2_deferred_flush_requests[i].flushFromSeq = flushFromSeq & 0x7fffff;
|
|
conn->ap2_deferred_flush_requests[i].flushFromTS = flushFromTS;
|
|
conn->ap2_deferred_flush_requests[i].flushUntilSeq = flushUntilSeq & 0x7fffff;
|
|
conn->ap2_deferred_flush_requests[i].flushUntilTS = flushUntilTS;
|
|
debug(2,
|
|
"Connection %d: deferred flush request created: flushFromSeq: %" PRIu64
|
|
", flushUntilSeq: %" PRIu64 ".",
|
|
conn->connection_number, flushFromSeq, flushUntilSeq);
|
|
} else {
|
|
debug(1, "Connection %d: no more room for deferred flush request records",
|
|
conn->connection_number);
|
|
}
|
|
}
|
|
|
|
pthread_mutex_unlock(&conn->flush_mutex);
|
|
plist_free(messagePlist);
|
|
}
|
|
|
|
resp->respcode = 200;
|
|
}
|
|
|
|
void handle_setrate(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug(1, "Connection %d: SETRATE %s : Content-Length %d", conn->connection_number, req->path,
|
|
req->contentlength);
|
|
debug_log_rtsp_message(1, "SETRATE request -- unimplemented", req);
|
|
resp->respcode = 501; // Not Implemented
|
|
}
|
|
|
|
void handle_unimplemented_ap1(__attribute((unused)) rtsp_conn_info *conn, rtsp_message *req,
|
|
rtsp_message *resp) {
|
|
debug_log_rtsp_message(1, "request not recognised for AirPlay 1 operation", req);
|
|
resp->respcode = 501;
|
|
}
|
|
|
|
void handle_setrateanchori(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug(2, "Connection %d: SETRATEANCHORI %s :: Content-Length %d", conn->connection_number,
|
|
req->path, req->contentlength);
|
|
debug_log_rtsp_message(3, "SETRATEANCHORI", req);
|
|
plist_t messagePlist = plist_from_rtsp_content(req);
|
|
|
|
if (messagePlist != NULL) {
|
|
pthread_cleanup_push(plist_cleanup, (void *)messagePlist);
|
|
plist_t item = plist_dict_get_item(messagePlist, "networkTimeSecs");
|
|
if (item != NULL) {
|
|
plist_t item_2 = plist_dict_get_item(messagePlist, "networkTimeTimelineID");
|
|
if (item_2 == NULL) {
|
|
debug(1, "Can't identify the Clock ID of the player.");
|
|
} else {
|
|
uint64_t nid;
|
|
plist_get_uint_val(item_2, &nid);
|
|
debug(3, "networkTimeTimelineID \"%" PRIx64 "\".", nid);
|
|
conn->networkTimeTimelineID = nid;
|
|
}
|
|
uint64_t networkTimeSecs;
|
|
plist_get_uint_val(item, &networkTimeSecs);
|
|
debug(3, "anchor networkTimeSecs is %" PRIu64 ".", networkTimeSecs);
|
|
|
|
item = plist_dict_get_item(messagePlist, "networkTimeFrac");
|
|
uint64_t networkTimeFrac;
|
|
plist_get_uint_val(item, &networkTimeFrac);
|
|
debug(3, "anchor networkTimeFrac is 0%" PRIu64 ".", networkTimeFrac);
|
|
// it looks like the networkTimeFrac is a fraction where the msb is work 1/2, the
|
|
// next 1/4 and so on
|
|
// now, convert the network time and fraction into nanoseconds
|
|
networkTimeFrac = networkTimeFrac >> 32; // reduce precision to about 1/4 nanosecond
|
|
networkTimeFrac = networkTimeFrac * 1000000000;
|
|
networkTimeFrac = networkTimeFrac >> 32; // we should now be left with the ns
|
|
|
|
networkTimeSecs = networkTimeSecs * 1000000000; // turn the whole seconds into ns
|
|
uint64_t anchorTimeNanoseconds = networkTimeSecs + networkTimeFrac;
|
|
|
|
debug(3, "anchorTimeNanoseconds looks like %" PRIu64 ".", anchorTimeNanoseconds);
|
|
|
|
item = plist_dict_get_item(messagePlist, "rtpTime");
|
|
uint64_t rtpTime;
|
|
|
|
plist_get_uint_val(item, &rtpTime);
|
|
// debug(1, "anchor rtpTime is %" PRId64 ".", rtpTime);
|
|
uint32_t anchorRTPTime = rtpTime;
|
|
|
|
int32_t added_latency = (int32_t)(config.audio_backend_latency_offset * conn->input_rate);
|
|
// debug(1,"anchorRTPTime: %" PRIu32 ", added latency: %" PRId32 ".", anchorRTPTime,
|
|
// added_latency);
|
|
set_ptp_anchor_info(conn, conn->networkTimeTimelineID, anchorRTPTime - added_latency,
|
|
anchorTimeNanoseconds);
|
|
}
|
|
|
|
item = plist_dict_get_item(messagePlist, "rate");
|
|
if (item != NULL) {
|
|
uint64_t rate;
|
|
plist_get_uint_val(item, &rate);
|
|
debug(3, "anchor rate 0x%016" PRIx64 ".", rate);
|
|
pthread_mutex_lock_and_cleanup_push(&conn->flush_mutex);
|
|
conn->ap2_rate = rate;
|
|
if ((rate & 1) != 0) {
|
|
ptp_send_control_message_string(
|
|
"B"); // signify clock dependability period is "B"eginning (or resuming)
|
|
debug(2, "Connection %d: SETRATEANCHORI Start playing, with anchor clock %" PRIx64 ".",
|
|
conn->connection_number, conn->networkTimeTimelineID);
|
|
activity_monitor_signify_activity(1);
|
|
|
|
#ifdef CONFIG_METADATA
|
|
send_ssnc_metadata('pres', NULL, 0, 1); // resume -- contains cancellation points
|
|
#endif
|
|
conn->ap2_play_enabled = 1;
|
|
} else {
|
|
reset_ptp_anchor_info(conn);
|
|
ptp_send_control_message_string("P"); // signify play is "P"ausing
|
|
debug(2, "Connection %d: SETRATEANCHORI Pause playing.", conn->connection_number);
|
|
conn->ap2_play_enabled = 0;
|
|
activity_monitor_signify_activity(0);
|
|
|
|
#ifdef CONFIG_METADATA
|
|
send_ssnc_metadata('paus', NULL, 0, 1); // pause -- contains cancellation points
|
|
#endif
|
|
// if (config.output->stop) {
|
|
// debug(1, "Connection %d: SETRATEANCHORI would stop the output backend.",
|
|
// conn->connection_number); config.output->stop();
|
|
// }
|
|
}
|
|
pthread_cleanup_pop(1); // unlock the conn->flush_mutex
|
|
}
|
|
pthread_cleanup_pop(1); // plist_free the messagePlist;
|
|
} else {
|
|
debug(1, "missing plist!");
|
|
}
|
|
resp->respcode = 200;
|
|
}
|
|
|
|
void handle_get(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug(3, "Connection %d: GET %s :: Content-Length %d", conn->connection_number, req->path,
|
|
req->contentlength);
|
|
debug_log_rtsp_message(3, "GET request", req);
|
|
if (strcmp(req->path, "/info") == 0) {
|
|
handle_get_info(conn, req, resp);
|
|
} else {
|
|
debug(1, "Unhandled GET, path \"%s\".", req->path);
|
|
resp->respcode = 501; // Not Implemented
|
|
}
|
|
}
|
|
|
|
#else
|
|
void handle_get(__attribute((unused)) rtsp_conn_info *conn, __attribute((unused)) rtsp_message *req,
|
|
__attribute((unused)) rtsp_message *resp) {
|
|
debug(1, "Connection %d: GET %s Content-Length %d", conn->connection_number, req->path,
|
|
req->contentlength);
|
|
resp->respcode = 501; // 501 is not implemented
|
|
}
|
|
|
|
void handle_post(rtsp_conn_info *conn, rtsp_message *req,
|
|
__attribute((unused)) rtsp_message *resp) {
|
|
debug(1, "Connection %d: AP1 POST %s Content-Length %d", conn->connection_number, req->path,
|
|
req->contentlength);
|
|
resp->respcode = 501; // 501 is not implemented
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
struct pairings {
|
|
char device_id[PAIR_AP_DEVICE_ID_LEN_MAX];
|
|
uint8_t public_key[32];
|
|
|
|
struct pairings *next;
|
|
} *pairings;
|
|
|
|
static struct pairings *pairing_find(const char *device_id) {
|
|
for (struct pairings *pairing = pairings; pairing; pairing = pairing->next) {
|
|
if (strcmp(device_id, pairing->device_id) == 0)
|
|
return pairing;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void pairing_add(uint8_t public_key[32], const char *device_id) {
|
|
struct pairings *pairing = calloc(1, sizeof(struct pairings));
|
|
snprintf(pairing->device_id, sizeof(pairing->device_id), "%s", device_id);
|
|
memcpy(pairing->public_key, public_key, sizeof(pairing->public_key));
|
|
|
|
pairing->next = pairings;
|
|
pairings = pairing;
|
|
}
|
|
|
|
static void pairing_remove(struct pairings *pairing) {
|
|
if (pairing == pairings) {
|
|
pairings = pairing->next;
|
|
} else {
|
|
struct pairings *iter;
|
|
for (iter = pairings; iter && (iter->next != pairing); iter = iter->next)
|
|
; /* EMPTY */
|
|
|
|
if (iter)
|
|
iter->next = pairing->next;
|
|
}
|
|
|
|
free(pairing);
|
|
}
|
|
|
|
static int pairing_add_cb(uint8_t public_key[32], const char *device_id,
|
|
void *cb_arg __attribute__((unused))) {
|
|
debug(1, "pair-add cb for %s", device_id);
|
|
|
|
struct pairings *pairing = pairing_find(device_id);
|
|
if (pairing) {
|
|
memcpy(pairing->public_key, public_key, sizeof(pairing->public_key));
|
|
return 0;
|
|
}
|
|
|
|
pairing_add(public_key, device_id);
|
|
return 0;
|
|
}
|
|
|
|
static int pairing_remove_cb(uint8_t public_key[32] __attribute__((unused)), const char *device_id,
|
|
void *cb_arg __attribute__((unused))) {
|
|
debug(1, "pair-remove cb for %s", device_id);
|
|
|
|
struct pairings *pairing = pairing_find(device_id);
|
|
if (!pairing) {
|
|
debug(1, "pair-remove callback for device \"%s\".", device_id);
|
|
return -1;
|
|
}
|
|
|
|
pairing_remove(pairing);
|
|
return 0;
|
|
}
|
|
|
|
static void pairing_list_cb(pair_cb enum_cb, void *enum_cb_arg,
|
|
void *cb_arg __attribute__((unused))) {
|
|
debug(1, "pair-list cb");
|
|
|
|
for (struct pairings *pairing = pairings; pairing; pairing = pairing->next) {
|
|
enum_cb(pairing->public_key, pairing->device_id, enum_cb_arg);
|
|
}
|
|
}
|
|
|
|
void handle_pair_add(rtsp_conn_info *conn __attribute__((unused)), rtsp_message *req,
|
|
rtsp_message *resp) {
|
|
|
|
char *hdr = msg_get_header(req, "X-Apple-Client-Name");
|
|
if (hdr) {
|
|
if (conn->ap2_client_name)
|
|
free(conn->ap2_client_name);
|
|
conn->ap2_client_name = strdup(hdr);
|
|
}
|
|
debug(1, "Connection %d from \"%s\": handle_pair_add", conn->connection_number,
|
|
conn->ap2_client_name);
|
|
debug_log_rtsp_message_conn(conn, 1, "pair-add request", req);
|
|
uint8_t *body = NULL;
|
|
size_t body_len = 0;
|
|
int ret = pair_add(PAIR_SERVER_HOMEKIT, &body, &body_len, pairing_add_cb, NULL,
|
|
(const uint8_t *)req->content, req->contentlength);
|
|
if (ret < 0) {
|
|
debug(1, "pair-add returned an error");
|
|
resp->respcode = 451;
|
|
return;
|
|
}
|
|
resp->content = (char *)body; // these will be freed when the data is sent
|
|
resp->contentlength = body_len;
|
|
msg_add_header(resp, "Content-Type", "application/octet-stream");
|
|
debug_log_rtsp_message_conn(conn, 1, "pair-add response", resp);
|
|
}
|
|
|
|
void handle_pair_list(rtsp_conn_info *conn __attribute__((unused)), rtsp_message *req,
|
|
rtsp_message *resp) {
|
|
char *hdr = msg_get_header(req, "X-Apple-Client-Name");
|
|
if (hdr) {
|
|
if (conn->ap2_client_name)
|
|
free(conn->ap2_client_name);
|
|
conn->ap2_client_name = strdup(hdr);
|
|
}
|
|
debug(1, "Connection %d from \"%s\": handle_pair_list", conn->connection_number,
|
|
conn->ap2_client_name);
|
|
uint8_t *body = NULL;
|
|
size_t body_len = 0;
|
|
int ret = pair_list(PAIR_SERVER_HOMEKIT, &body, &body_len, pairing_list_cb, NULL,
|
|
(const uint8_t *)req->content, req->contentlength);
|
|
if (ret < 0) {
|
|
debug(1, "pair-list returned an error");
|
|
resp->respcode = 451;
|
|
return;
|
|
}
|
|
resp->content = (char *)body; // these will be freed when the data is sent
|
|
resp->contentlength = body_len;
|
|
msg_add_header(resp, "Content-Type", "application/octet-stream");
|
|
debug_log_rtsp_message_conn(conn, 1, "pair-list response", resp);
|
|
}
|
|
|
|
void handle_pair_remove(rtsp_conn_info *conn __attribute__((unused)), rtsp_message *req,
|
|
rtsp_message *resp) {
|
|
|
|
char *hdr = msg_get_header(req, "X-Apple-Client-Name");
|
|
if (hdr) {
|
|
if (conn->ap2_client_name)
|
|
free(conn->ap2_client_name);
|
|
conn->ap2_client_name = strdup(hdr);
|
|
}
|
|
debug(1, "Connection %d from \"%s\": handle_pair_remove", conn->connection_number,
|
|
conn->ap2_client_name);
|
|
uint8_t *body = NULL;
|
|
size_t body_len = 0;
|
|
int ret = pair_remove(PAIR_SERVER_HOMEKIT, &body, &body_len, pairing_remove_cb, NULL,
|
|
(const uint8_t *)req->content, req->contentlength);
|
|
if (ret < 0) {
|
|
debug(1, "pair-remove returned an error");
|
|
resp->respcode = 451;
|
|
return;
|
|
}
|
|
resp->content = (char *)body; // these will be freed when the data is sent
|
|
resp->contentlength = body_len;
|
|
msg_add_header(resp, "Content-Type", "application/octet-stream");
|
|
debug_log_rtsp_message_conn(conn, 1, "pair-remove response", resp);
|
|
}
|
|
|
|
void handle_pair_verify(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
char *hdr = msg_get_header(req, "X-Apple-Client-Name");
|
|
if (hdr) {
|
|
if (conn->ap2_client_name)
|
|
free(conn->ap2_client_name);
|
|
conn->ap2_client_name = strdup(hdr);
|
|
}
|
|
// try to pick up the stages
|
|
uint8_t *b = (uint8_t *)req->content;
|
|
char mstage = '-';
|
|
if ((req->contentlength >= 3) && (b[0] == 6) && (b[1] == 1) && (b[1] <= 9)) {
|
|
mstage = '0' + b[2];
|
|
}
|
|
|
|
debug(1, "Connection %d from \"%s\": handle_pair_verify, stage M%c, Content-Length %d",
|
|
conn->connection_number, conn->ap2_client_name, mstage, req->contentlength);
|
|
debug_log_rtsp_message_conn(conn, 2, "pair-verify request", req);
|
|
int ret;
|
|
uint8_t *body = NULL;
|
|
size_t body_len = 0;
|
|
// struct pair_result *result;
|
|
|
|
if (!conn->ap2_pairing_context.verify_ctx) {
|
|
conn->ap2_pairing_context.verify_ctx =
|
|
pair_verify_new(PAIR_SERVER_HOMEKIT, NULL, NULL, NULL, config.airplay_device_id);
|
|
if (!conn->ap2_pairing_context.verify_ctx) {
|
|
debug(1, "Error creating verify context");
|
|
resp->respcode = 500; // Internal Server Error
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
ret = pair_verify(&body, &body_len, conn->ap2_pairing_context.verify_ctx,
|
|
(const uint8_t *)req->content, req->contentlength);
|
|
if (ret < 0) {
|
|
debug(1, "%s", pair_verify_errmsg(conn->ap2_pairing_context.verify_ctx));
|
|
resp->respcode = 470; // Connection Authorization Required
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
ret = pair_verify_result(&result, conn->ap2_pairing_context.verify_ctx);
|
|
if (ret == 0 && result->shared_secret_len > 0) {
|
|
conn->ap2_pairing_context.control_cipher_bundle.cipher_ctx =
|
|
pair_cipher_new(PAIR_SERVER_HOMEKIT, 3, result->shared_secret, result->shared_secret_len);
|
|
if (!conn->ap2_pairing_context.control_cipher_bundle.cipher_ctx) {
|
|
debug(1, "Error setting up rtsp control channel ciphering\n");
|
|
goto out;
|
|
}
|
|
conn->ap2_pairing_context.event_cipher_bundle.cipher_ctx =
|
|
pair_cipher_new(PAIR_SERVER_HOMEKIT, 4, result->shared_secret, result->shared_secret_len);
|
|
if (!conn->ap2_pairing_context.event_cipher_bundle.cipher_ctx) {
|
|
debug(1, "Error setting up rtsp event channel ciphering\n");
|
|
goto out;
|
|
}
|
|
}
|
|
*/
|
|
|
|
out:
|
|
resp->content = (char *)body; // these will be freed when the data is sent
|
|
resp->contentlength = body_len;
|
|
if (body)
|
|
msg_add_header(resp, "Content-Type", "application/octet-stream");
|
|
debug_log_rtsp_message_conn(conn, 2, "pair-verify response", resp);
|
|
}
|
|
|
|
void handle_pair_pin_start(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
|
|
char *hdr = msg_get_header(req, "X-Apple-Client-Name");
|
|
if (hdr) {
|
|
if (conn->ap2_client_name)
|
|
free(conn->ap2_client_name);
|
|
conn->ap2_client_name = strdup(hdr);
|
|
}
|
|
debug(4, "Connection %d from \"%s\": handle_pair_pin_start, Content-Length %d",
|
|
conn->connection_number, conn->ap2_client_name, req->contentlength);
|
|
debug_log_rtsp_message_conn(conn, 4, "handle_pair_pin_start", req);
|
|
|
|
uint8_t *body = NULL;
|
|
size_t body_len = 0;
|
|
|
|
resp->content = (char *)body; // these will be freed when the data is sent
|
|
resp->contentlength = body_len;
|
|
if (body != NULL)
|
|
msg_add_header(resp, "Content-Type", "application/octet-stream");
|
|
debug_log_rtsp_message(4, "pair-pin-start response", resp);
|
|
}
|
|
|
|
void handle_pair_setup(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
|
|
char *hdr = msg_get_header(req, "X-Apple-Client-Name");
|
|
if (hdr) {
|
|
if (conn->ap2_client_name)
|
|
free(conn->ap2_client_name);
|
|
conn->ap2_client_name = strdup(hdr);
|
|
}
|
|
debug(2, "Connection %d from \"%s\": handle_pair_setup, Content-Length %d",
|
|
conn->connection_number, conn->ap2_client_name, req->contentlength);
|
|
debug_log_rtsp_message_conn(conn, 2, "pair-setup request", req);
|
|
|
|
int ret;
|
|
uint8_t *body = NULL;
|
|
size_t body_len = 0;
|
|
debug(3, "Connection %d: handle_pair_setup Content-Length %d", conn->connection_number,
|
|
req->contentlength);
|
|
debug_log_rtsp_message(3, "handle_pair_setup", req);
|
|
|
|
if (!conn->ap2_pairing_context.setup_ctx) {
|
|
conn->ap2_pairing_context.setup_ctx =
|
|
pair_setup_new(PAIR_SERVER_HOMEKIT, config.password, NULL, NULL, config.airplay_device_id);
|
|
if (!conn->ap2_pairing_context.setup_ctx) {
|
|
debug(1, "Error creating setup context");
|
|
resp->respcode = 500; // Internal Server Error
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
ret = pair_setup(&body, &body_len, conn->ap2_pairing_context.setup_ctx,
|
|
(const uint8_t *)req->content, req->contentlength);
|
|
if (ret < 0) {
|
|
debug(1, "%s", pair_setup_errmsg(conn->ap2_pairing_context.setup_ctx));
|
|
resp->respcode = 470; // Connection Authorization Required
|
|
goto out;
|
|
}
|
|
|
|
ret = pair_setup_result(NULL, &conn->pair_setup_result, conn->ap2_pairing_context.setup_ctx);
|
|
if (ret == 0 && conn->pair_setup_result->shared_secret_len > 0) {
|
|
// Transient pairing completed (pair-setup step 2), prepare encryption, but
|
|
// don't activate yet, the response to this request is still plaintext
|
|
conn->ap2_pairing_context.control_cipher_bundle.cipher_ctx =
|
|
pair_cipher_new(PAIR_SERVER_HOMEKIT, 3, conn->pair_setup_result->shared_secret,
|
|
conn->pair_setup_result->shared_secret_len,
|
|
""); // last argument is the (possible) dynamic salt suffix
|
|
if (!conn->ap2_pairing_context.control_cipher_bundle.cipher_ctx) {
|
|
debug(1, "Error setting up rtsp control channel ciphering");
|
|
goto out;
|
|
}
|
|
conn->ap2_pairing_context.control_cipher_bundle.description = strdup("Control Stream");
|
|
|
|
conn->ap2_pairing_context.event_cipher_bundle.cipher_ctx =
|
|
pair_cipher_new(PAIR_SERVER_HOMEKIT, 4, conn->pair_setup_result->shared_secret,
|
|
conn->pair_setup_result->shared_secret_len,
|
|
""); // last argument is the (possible) dynamic salt suffix
|
|
if (!conn->ap2_pairing_context.event_cipher_bundle.cipher_ctx) {
|
|
debug(1, "Error setting up rtsp event channel ciphering");
|
|
goto out;
|
|
}
|
|
conn->ap2_pairing_context.event_cipher_bundle.description = strdup("Event Stream");
|
|
}
|
|
|
|
out:
|
|
resp->content = (char *)body; // these will be freed when the data is sent
|
|
resp->contentlength = body_len;
|
|
if (body)
|
|
msg_add_header(resp, "Content-Type", "application/octet-stream");
|
|
debug_log_rtsp_message_conn(conn, 2, "pair-setup response", resp);
|
|
}
|
|
|
|
void handle_fp_setup(__attribute__((unused)) rtsp_conn_info *conn, rtsp_message *req,
|
|
rtsp_message *resp) {
|
|
|
|
char *hdr = msg_get_header(req, "X-Apple-Client-Name");
|
|
if (hdr) {
|
|
if (conn->ap2_client_name)
|
|
free(conn->ap2_client_name);
|
|
conn->ap2_client_name = strdup(hdr);
|
|
}
|
|
debug(2, "Connection %d from \"%s\": handle_fp_setup,", conn->connection_number,
|
|
conn->ap2_client_name);
|
|
debug_log_rtsp_message_conn(conn, 2, "fp-setup request", req);
|
|
|
|
/* Fairplay magic */
|
|
static uint8_t server_fp_reply1[] =
|
|
"\x46\x50\x4c\x59\x03\x01\x02\x00\x00\x00\x00\x82\x02\x00\x0f\x9f\x3f\x9e\x0a"
|
|
"\x25\x21\xdb\xdf\x31\x2a\xb2\xbf\xb2\x9e\x8d\x23\x2b\x63\x76\xa8\xc8\x18\x70"
|
|
"\x1d\x22\xae\x93\xd8\x27\x37\xfe\xaf\x9d\xb4\xfd\xf4\x1c\x2d\xba\x9d\x1f\x49"
|
|
"\xca\xaa\xbf\x65\x91\xac\x1f\x7b\xc6\xf7\xe0\x66\x3d\x21\xaf\xe0\x15\x65\x95"
|
|
"\x3e\xab\x81\xf4\x18\xce\xed\x09\x5a\xdb\x7c\x3d\x0e\x25\x49\x09\xa7\x98\x31"
|
|
"\xd4\x9c\x39\x82\x97\x34\x34\xfa\xcb\x42\xc6\x3a\x1c\xd9\x11\xa6\xfe\x94\x1a"
|
|
"\x8a\x6d\x4a\x74\x3b\x46\xc3\xa7\x64\x9e\x44\xc7\x89\x55\xe4\x9d\x81\x55\x00"
|
|
"\x95\x49\xc4\xe2\xf7\xa3\xf6\xd5\xba";
|
|
static uint8_t server_fp_reply2[] =
|
|
"\x46\x50\x4c\x59\x03\x01\x02\x00\x00\x00\x00\x82\x02\x01\xcf\x32\xa2\x57\x14"
|
|
"\xb2\x52\x4f\x8a\xa0\xad\x7a\xf1\x64\xe3\x7b\xcf\x44\x24\xe2\x00\x04\x7e\xfc"
|
|
"\x0a\xd6\x7a\xfc\xd9\x5d\xed\x1c\x27\x30\xbb\x59\x1b\x96\x2e\xd6\x3a\x9c\x4d"
|
|
"\xed\x88\xba\x8f\xc7\x8d\xe6\x4d\x91\xcc\xfd\x5c\x7b\x56\xda\x88\xe3\x1f\x5c"
|
|
"\xce\xaf\xc7\x43\x19\x95\xa0\x16\x65\xa5\x4e\x19\x39\xd2\x5b\x94\xdb\x64\xb9"
|
|
"\xe4\x5d\x8d\x06\x3e\x1e\x6a\xf0\x7e\x96\x56\x16\x2b\x0e\xfa\x40\x42\x75\xea"
|
|
"\x5a\x44\xd9\x59\x1c\x72\x56\xb9\xfb\xe6\x51\x38\x98\xb8\x02\x27\x72\x19\x88"
|
|
"\x57\x16\x50\x94\x2a\xd9\x46\x68\x8a";
|
|
static uint8_t server_fp_reply3[] =
|
|
"\x46\x50\x4c\x59\x03\x01\x02\x00\x00\x00\x00\x82\x02\x02\xc1\x69\xa3\x52\xee"
|
|
"\xed\x35\xb1\x8c\xdd\x9c\x58\xd6\x4f\x16\xc1\x51\x9a\x89\xeb\x53\x17\xbd\x0d"
|
|
"\x43\x36\xcd\x68\xf6\x38\xff\x9d\x01\x6a\x5b\x52\xb7\xfa\x92\x16\xb2\xb6\x54"
|
|
"\x82\xc7\x84\x44\x11\x81\x21\xa2\xc7\xfe\xd8\x3d\xb7\x11\x9e\x91\x82\xaa\xd7"
|
|
"\xd1\x8c\x70\x63\xe2\xa4\x57\x55\x59\x10\xaf\x9e\x0e\xfc\x76\x34\x7d\x16\x40"
|
|
"\x43\x80\x7f\x58\x1e\xe4\xfb\xe4\x2c\xa9\xde\xdc\x1b\x5e\xb2\xa3\xaa\x3d\x2e"
|
|
"\xcd\x59\xe7\xee\xe7\x0b\x36\x29\xf2\x2a\xfd\x16\x1d\x87\x73\x53\xdd\xb9\x9a"
|
|
"\xdc\x8e\x07\x00\x6e\x56\xf8\x50\xce";
|
|
static uint8_t server_fp_reply4[] =
|
|
"\x46\x50\x4c\x59\x03\x01\x02\x00\x00\x00\x00\x82\x02\x03\x90\x01\xe1\x72\x7e"
|
|
"\x0f\x57\xf9\xf5\x88\x0d\xb1\x04\xa6\x25\x7a\x23\xf5\xcf\xff\x1a\xbb\xe1\xe9"
|
|
"\x30\x45\x25\x1a\xfb\x97\xeb\x9f\xc0\x01\x1e\xbe\x0f\x3a\x81\xdf\x5b\x69\x1d"
|
|
"\x76\xac\xb2\xf7\xa5\xc7\x08\xe3\xd3\x28\xf5\x6b\xb3\x9d\xbd\xe5\xf2\x9c\x8a"
|
|
"\x17\xf4\x81\x48\x7e\x3a\xe8\x63\xc6\x78\x32\x54\x22\xe6\xf7\x8e\x16\x6d\x18"
|
|
"\xaa\x7f\xd6\x36\x25\x8b\xce\x28\x72\x6f\x66\x1f\x73\x88\x93\xce\x44\x31\x1e"
|
|
"\x4b\xe6\xc0\x53\x51\x93\xe5\xef\x72\xe8\x68\x62\x33\x72\x9c\x22\x7d\x82\x0c"
|
|
"\x99\x94\x45\xd8\x92\x46\xc8\xc3\x59";
|
|
|
|
static uint8_t server_fp_header[] = "\x46\x50\x4c\x59\x03\x01\x04\x00\x00\x00\x00\x14";
|
|
|
|
resp->respcode = 200; // assume it's handled
|
|
|
|
// uint8_t *out;
|
|
// size_t out_len;
|
|
int version_pos = 4;
|
|
int mode_pos = 14;
|
|
int type_pos = 5;
|
|
int seq_pos = 6;
|
|
int setup_message_type = 1;
|
|
int setup1_message_seq = 1;
|
|
int setup2_message_seq = 3;
|
|
int setup2_suffix_len = 20;
|
|
// int ret;
|
|
|
|
// response and len are dummy values and can be ignored
|
|
|
|
// debug(1, "Version: %02x, mode: %02x, type: %02x, seq: %02x", req->content[version_pos],
|
|
// req->content[mode_pos], req->content[type_pos], req->content[seq_pos]);
|
|
|
|
if (req->content[version_pos] != 3 || req->content[type_pos] != setup_message_type) {
|
|
debug(1, "Unsupported FP version.");
|
|
}
|
|
|
|
char *response = NULL;
|
|
size_t len = 0;
|
|
|
|
if (req->content[seq_pos] == setup1_message_seq) {
|
|
// All replies are the same length. -1 to account for the NUL byte at the end.
|
|
len = sizeof(server_fp_reply1) - 1;
|
|
|
|
if (req->content[mode_pos] == 0)
|
|
response = memdup(server_fp_reply1, len);
|
|
if (req->content[mode_pos] == 1)
|
|
response = memdup(server_fp_reply2, len);
|
|
if (req->content[mode_pos] == 2)
|
|
response = memdup(server_fp_reply3, len);
|
|
if (req->content[mode_pos] == 3)
|
|
response = memdup(server_fp_reply4, len);
|
|
|
|
} else if (req->content[seq_pos] == setup2_message_seq) {
|
|
// -1 to account for the NUL byte at the end.
|
|
len = sizeof(server_fp_header) - 1 + setup2_suffix_len;
|
|
response = malloc(len);
|
|
if (response) {
|
|
memcpy(response, server_fp_header, sizeof(server_fp_header) - 1);
|
|
memcpy(response + sizeof(server_fp_header) - 1,
|
|
req->content + req->contentlength - setup2_suffix_len, setup2_suffix_len);
|
|
}
|
|
}
|
|
|
|
if (response == NULL) {
|
|
debug(1, "Cannot create a response.");
|
|
}
|
|
|
|
resp->content = response; // these will be freed when the data is sent
|
|
resp->contentlength = len;
|
|
msg_add_header(resp, "Content-Type", "application/octet-stream");
|
|
}
|
|
|
|
/*
|
|
<key>Identifier</key>
|
|
<string>21cc689d-d5de-4814-872c-71d1426b57e0</string>
|
|
<key>Enable_HK_Access_Control</key>
|
|
<true/>
|
|
<key>PublicKey</key>
|
|
<data>
|
|
qXJDhhL5F3OACL+HO7LVLQVdy0OJtavepjpF720PaOQ=
|
|
</data>
|
|
<key>Device_Name</key>
|
|
<string>MyDevice</string>
|
|
<key>Access_Control_Level</key>
|
|
<integer>0</integer>
|
|
*/
|
|
void handle_configure(rtsp_conn_info *conn __attribute__((unused)),
|
|
rtsp_message *req __attribute__((unused)), rtsp_message *resp) {
|
|
|
|
debug_log_rtsp_message_conn(conn, 1, "POST /configure req:", req);
|
|
|
|
int existingEnable_HK_Access_Control = config.enable_HK_Access_Control;
|
|
|
|
plist_t response_plist = plist_new_dict();
|
|
|
|
// look for a configuration dictionary
|
|
plist_t messagePlist = plist_from_rtsp_content(req);
|
|
if (messagePlist != NULL) {
|
|
// look for the keyed dict "ConfigurationDictionary"
|
|
plist_t configurationDict = plist_dict_get_item(messagePlist, "ConfigurationDictionary");
|
|
if (configurationDict != NULL) {
|
|
uint8_t enable_HK_Access_Control = 0;
|
|
plist_t enableItem = plist_dict_get_item(configurationDict, "Enable_HK_Access_Control");
|
|
if (enableItem != NULL) {
|
|
plist_get_bool_val(enableItem, &enable_HK_Access_Control);
|
|
|
|
if (enable_HK_Access_Control != 0) {
|
|
config.enable_HK_Access_Control = 1;
|
|
plist_dict_set_item(response_plist, "Identifier", plist_new_string(config.airplay_pi));
|
|
plist_dict_set_item(response_plist, "Enable_HK_Access_Control", plist_new_bool(1));
|
|
plist_dict_set_item(
|
|
response_plist, "PublicKey",
|
|
plist_new_data((const char *)config.airplay_pk, sizeof(config.airplay_pk)));
|
|
plist_dict_set_item(response_plist, "Device_Name", plist_new_string(config.service_name));
|
|
plist_dict_set_item(response_plist, "Access_Control_Level", plist_new_uint(0));
|
|
} else {
|
|
config.enable_HK_Access_Control = 0;
|
|
// leave the response dict empty
|
|
}
|
|
} else {
|
|
debug(1, "no Enable_HK_Access_Control item in POST /configure ConfigurationDictionary");
|
|
}
|
|
debug(1, "enable_HK_Access_Control is %u.", enable_HK_Access_Control);
|
|
} else {
|
|
debug(1, "no ConfigurationDictionary in POST /configure plist");
|
|
}
|
|
plist_free(messagePlist);
|
|
} else {
|
|
debug(1, "no plist in POST /configure request");
|
|
}
|
|
|
|
if (config.enable_HK_Access_Control != 0) {
|
|
config.airplay_statusflags |= (1 << 10); // DeviceWasSetupForHKAccessControl
|
|
} else {
|
|
config.airplay_statusflags &= (0xffffffff - (1 << 10));
|
|
}
|
|
|
|
if (config.enable_HK_Access_Control != existingEnable_HK_Access_Control) {
|
|
build_bonjour_strings(principal_conn);
|
|
if (config.service_type == APST_airplay2) {
|
|
mdns_update(NULL, secondary_txt_records);
|
|
}
|
|
}
|
|
plist_to_bin(response_plist, &resp->content, &resp->contentlength);
|
|
plist_free(response_plist);
|
|
|
|
msg_add_header(resp, "Content-Type", "application/x-apple-binary-plist");
|
|
debug_log_rtsp_message_conn(conn, 1, "POST /configure response:", resp);
|
|
}
|
|
|
|
void handle_feedback(rtsp_conn_info *conn, __attribute__((unused)) rtsp_message *req,
|
|
__attribute__((unused)) rtsp_message *resp) {
|
|
debug(4, "Connection %d: POST %s Content-Length %d", conn->connection_number, req->path,
|
|
req->contentlength);
|
|
debug_log_rtsp_message(4, NULL, req);
|
|
|
|
int is_playing = 0;
|
|
int connection_number = 0;
|
|
int type = 0;
|
|
double rate = 0.0;
|
|
|
|
// get information from the current player, if any.
|
|
|
|
pthread_rwlock_rdlock(&principal_conn_lock); // don't let the principal_conn be changed
|
|
pthread_cleanup_push(rwlock_unlock, (void *)&principal_conn_lock);
|
|
if ((principal_conn != NULL) && (principal_conn->is_playing != 0)) {
|
|
is_playing = 1;
|
|
connection_number = principal_conn->connection_number;
|
|
type = principal_conn->type;
|
|
rate = 1.0 * principal_conn->input_rate;
|
|
}
|
|
pthread_cleanup_pop(1); // release the principal_conn lock
|
|
|
|
// debug(1, "Player is%s playing.", is_playing != 0 ? "" : " not");
|
|
|
|
if (is_playing != 0) {
|
|
if ((type != 96) && (type != 103))
|
|
debug(1, "Connection %d, feedback unexpected type: %u.", connection_number, type);
|
|
if ((rate != 44100.0) && (rate != 48000.0))
|
|
debug(2, "Connection %d, feedback unexpected rate: %f.", connection_number, rate);
|
|
plist_t payload_plist = plist_new_dict();
|
|
plist_dict_set_item(payload_plist, "type", plist_new_uint(type));
|
|
plist_dict_set_item(payload_plist, "sr", plist_new_real(rate));
|
|
|
|
plist_t array_plist = plist_new_array();
|
|
plist_array_append_item(array_plist, payload_plist);
|
|
|
|
plist_t response_plist = plist_new_dict();
|
|
plist_dict_set_item(response_plist, "streams", array_plist);
|
|
|
|
plist_to_bin(response_plist, &resp->content, &resp->contentlength);
|
|
plist_free(response_plist);
|
|
// plist_free(array_plist);
|
|
// plist_free(payload_plist);
|
|
|
|
msg_add_header(resp, "Content-Type", "application/x-apple-binary-plist");
|
|
debug_log_rtsp_message(4, "FEEDBACK response:", resp);
|
|
}
|
|
}
|
|
|
|
void handle_command(rtsp_conn_info *conn, rtsp_message *req,
|
|
__attribute__((unused)) rtsp_message *resp) {
|
|
debug(3, "Connection %d: POST %s Content-Length %d", conn->connection_number, req->path,
|
|
req->contentlength);
|
|
debug_log_rtsp_message(3, NULL, req);
|
|
if (rtsp_message_contains_plist(req)) {
|
|
// we are not going to load the plist here because we don't wamt
|
|
// to incur the memory and processing cost. So we'll just send it to the
|
|
// metadata handling code and it can be dealt with there.
|
|
#ifdef CONFIG_METADATA
|
|
send_metadata('ssnc', 'copl', req->content, req->contentlength, req,
|
|
1); // COmmand PList (and release 'req' afterwards)
|
|
#endif
|
|
/*
|
|
plist_t command_dict = NULL;
|
|
plist_from_memory(req->content, req->contentlength, &command_dict);
|
|
if (command_dict != NULL) {
|
|
// we have a plist -- try to get the dict item keyed to "updateMRSupportedCommands"
|
|
plist_t item = plist_dict_get_item(command_dict, "type");
|
|
if (item != NULL) {
|
|
char *typeValue = NULL;
|
|
plist_get_string_val(item, &typeValue);
|
|
debug(1, "Connection %d: POST /command plist type \"%s\" received.",
|
|
conn->connection_number, typeValue);
|
|
debug_log_rtsp_message(1, NULL, req);
|
|
if ((typeValue != NULL) && (strcmp(typeValue, "updateMRSupportedCommands") == 0)) {
|
|
item = plist_dict_get_item(command_dict, "params");
|
|
if (item != NULL) {
|
|
// the item should be a dict
|
|
plist_t item_array = plist_dict_get_item(item, "mrSupportedCommandsFromSender");
|
|
if (item_array != NULL) {
|
|
// here we have an array of data items
|
|
uint32_t items = plist_array_get_size(item_array);
|
|
if (items) {
|
|
uint32_t item_number;
|
|
for (item_number = 0; item_number < items; item_number++) {
|
|
plist_t the_item = plist_array_get_item(item_array, item_number);
|
|
char *buff = NULL;
|
|
uint64_t length = 0;
|
|
plist_get_data_val(the_item, &buff, &length);
|
|
// debug(1,"Item %d, length: %" PRId64 " bytes", item_number, length);
|
|
if ((buff != NULL) && (length >= strlen("bplist00")) &&
|
|
(strstr(buff, "bplist00") == buff)) {
|
|
// debug(1,"Contains a plist.");
|
|
plist_t subsidiary_plist = NULL;
|
|
plist_from_memory(buff, length, &subsidiary_plist);
|
|
if (subsidiary_plist) {
|
|
char *printable_plist = plist_as_xml_text(subsidiary_plist);
|
|
if (printable_plist) {
|
|
debug(4, "Connection %d:\n==\n%s\n==", conn->connection_number,
|
|
printable_plist); free(printable_plist); } else { debug(1, "Can't print the plist!");
|
|
}
|
|
plist_free(subsidiary_plist);
|
|
} else {
|
|
debug(1, "Can't access the plist!");
|
|
}
|
|
}
|
|
if (buff != NULL)
|
|
free(buff);
|
|
}
|
|
}
|
|
} else {
|
|
debug(1, "Connection %d: POST /command no mrSupportedCommandsFromSender item.",
|
|
conn->connection_number);
|
|
}
|
|
} else {
|
|
debug(1, "Connection %d: POST /command no params dict.", conn->connection_number);
|
|
}
|
|
resp->respcode = 200;
|
|
}
|
|
if (typeValue != NULL)
|
|
free(typeValue);
|
|
} else {
|
|
debug(2, "Connection %d: Could not find a \"type\" item.", conn->connection_number);
|
|
}
|
|
|
|
plist_free(command_dict);
|
|
} else {
|
|
debug(1, "Connection %d: POST /command plist cannot be inputted.", conn->connection_number);
|
|
}
|
|
*/
|
|
} else {
|
|
debug(1, "Connection %d: POST /command contains no plist", conn->connection_number);
|
|
}
|
|
}
|
|
|
|
void handle_audio_mode(rtsp_conn_info *conn, rtsp_message *req,
|
|
__attribute__((unused)) rtsp_message *resp) {
|
|
debug(2, "Connection %d: POST %s Content-Length %d", conn->connection_number, req->path,
|
|
req->contentlength);
|
|
debug_log_rtsp_message(3, NULL, req);
|
|
}
|
|
|
|
void handle_post(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
resp->respcode = 200;
|
|
if (strcmp(req->path, "/pair-setup") == 0) {
|
|
handle_pair_setup(conn, req, resp);
|
|
} else if (strcmp(req->path, "/pair-verify") == 0) {
|
|
handle_pair_verify(conn, req, resp);
|
|
} else if (strcmp(req->path, "/pair-add") == 0) {
|
|
handle_pair_add(conn, req, resp);
|
|
} else if (strcmp(req->path, "/pair-remove") == 0) {
|
|
handle_pair_remove(conn, req, resp);
|
|
} else if (strcmp(req->path, "/pair-list") == 0) {
|
|
handle_pair_list(conn, req, resp);
|
|
} else if (strcmp(req->path, "/pair-pin-start") == 0) {
|
|
handle_pair_pin_start(conn, req, resp);
|
|
} else if (strcmp(req->path, "/fp-setup") == 0) {
|
|
handle_fp_setup(conn, req, resp);
|
|
} else if (strcmp(req->path, "/configure") == 0) {
|
|
handle_configure(conn, req, resp);
|
|
} else if (strcmp(req->path, "/feedback") == 0) {
|
|
handle_feedback(conn, req, resp);
|
|
} else if (strcmp(req->path, "/command") == 0) {
|
|
handle_command(conn, req, resp);
|
|
} else if (strcmp(req->path, "/audioMode") == 0) {
|
|
handle_audio_mode(conn, req, resp);
|
|
} else {
|
|
debug(1, "Connection %d: Unhandled POST %s Content-Length %d", conn->connection_number,
|
|
req->path, req->contentlength);
|
|
debug_log_rtsp_message(2, "POST request", req);
|
|
}
|
|
}
|
|
|
|
void handle_setpeers(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug(2, "Connection %d: SETPEERS %s Content-Length %d", conn->connection_number, req->path,
|
|
req->contentlength);
|
|
debug_log_rtsp_message(3, "SETPEERS request", req);
|
|
/*
|
|
char timing_list_message[4096];
|
|
timing_list_message[0] = 'T';
|
|
timing_list_message[1] = 0;
|
|
|
|
// ensure the client itself is first -- it's okay if it's duplicated later
|
|
strncat(timing_list_message, " ", sizeof(timing_list_message) - 1 -
|
|
strlen(timing_list_message)); strncat(timing_list_message, (const char
|
|
*)&conn->client_ip_string, sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
|
|
plist_t addresses_array = NULL;
|
|
plist_from_memory(req->content, req->contentlength, &addresses_array);
|
|
uint32_t items = plist_array_get_size(addresses_array);
|
|
if (items) {
|
|
uint32_t item;
|
|
for (item = 0; item < items; item++) {
|
|
plist_t n = plist_array_get_item(addresses_array, item);
|
|
char *ip_address = NULL;
|
|
plist_get_string_val(n, &ip_address);
|
|
// debug(1,ip_address);
|
|
strncat(timing_list_message, " ",
|
|
sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
strncat(timing_list_message, ip_address,
|
|
sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
if (ip_address != NULL)
|
|
free(ip_address);
|
|
}
|
|
ptp_send_control_message_string(timing_list_message);
|
|
}
|
|
plist_free(addresses_array);
|
|
*/
|
|
// set_client_as_ptp_clock(conn);
|
|
resp->respcode = 200;
|
|
}
|
|
void handle_setpeersx(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug(2, "Connection %d: SETPEERSX %s Content-Length %d", conn->connection_number, req->path,
|
|
req->contentlength);
|
|
debug_log_rtsp_message(2, "SETPEERS Xrequest", req);
|
|
resp->respcode = 200;
|
|
}
|
|
#endif
|
|
|
|
void handle_options(rtsp_conn_info *conn, __attribute__((unused)) rtsp_message *req,
|
|
rtsp_message *resp) {
|
|
debug_log_rtsp_message(2, "OPTIONS request", req);
|
|
debug(3, "Connection %d: OPTIONS", conn->connection_number);
|
|
resp->respcode = 200;
|
|
msg_add_header(resp, "Public",
|
|
"ANNOUNCE, SETUP, RECORD, "
|
|
"PAUSE, FLUSH, TEARDOWN, "
|
|
"OPTIONS, GET_PARAMETER, SET_PARAMETER");
|
|
}
|
|
|
|
void handle_teardown(rtsp_conn_info *conn, __attribute__((unused)) rtsp_message *req,
|
|
rtsp_message *resp) {
|
|
debug(4, "Connection %d: TEARDOWN (Classic) %s Content-Length %d", conn->connection_number, req->path, req->contentlength);
|
|
debug_log_rtsp_message_conn(conn, 4, "TEARDOWN (Classic)", req);
|
|
|
|
// most of the cleanup here is done by the exiting player_thread, if any, and by the event
|
|
// receiver if and when it exits.
|
|
|
|
if (conn->player_thread) {
|
|
debug(2, "TEARDOWN (Classic) is stopping a player thread before exiting...");
|
|
player_stop(conn); // this nulls the player_thread and cancels the threads...
|
|
activity_monitor_signify_activity(0); // inactive, and should be after command_stop()
|
|
}
|
|
|
|
resp->respcode = 200;
|
|
msg_add_header(resp, "Connection", "close");
|
|
conn->stop = 1; //an anomaly needs to be fixed
|
|
}
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
void handle_options_2(rtsp_conn_info *conn, __attribute__((unused)) rtsp_message *req,
|
|
rtsp_message *resp) {
|
|
debug_log_rtsp_message_conn(conn, 3, "OPTIONS request", req);
|
|
debug(3, "Connection %d: OPTIONS", conn->connection_number);
|
|
resp->respcode = 200;
|
|
msg_add_header(resp, "Public",
|
|
"ANNOUNCE, SETUP, RECORD, "
|
|
"PAUSE, FLUSH, FLUSHBUFFERED, TEARDOWN, "
|
|
"OPTIONS, POST, GET, PUT");
|
|
}
|
|
|
|
void handle_teardown_2(rtsp_conn_info *conn, __attribute__((unused)) rtsp_message *req,
|
|
rtsp_message *resp) {
|
|
|
|
debug(4, "Connection %d from \"%s\": TEARDOWN (AP2 %s) %s Content-Length %d", conn->connection_number, conn->ap2_client_name, get_category_string(conn->airplay_stream_category), req->path, req->contentlength);
|
|
debug_log_rtsp_message_conn(conn, 4, "TEARDOWN (AP2)", req);
|
|
// look for a configuration dictionary
|
|
|
|
plist_t messagePlist = plist_from_rtsp_content(req);
|
|
if (messagePlist != NULL) {
|
|
plist_t streams = plist_dict_get_item(messagePlist, "streams");
|
|
if (streams != NULL) {
|
|
// just drop the player, leave the connection open
|
|
if (conn->player_thread) {
|
|
debug(4, "Connection %d from \"%s\": TEARDOWN (AP2 %s) %s Content-Length %d is stopping a player thread", conn->connection_number, conn->ap2_client_name, get_category_string(conn->airplay_stream_category), req->path, req->contentlength);
|
|
player_stop(conn); // this nulls the player_thread and cancels the threads...
|
|
activity_monitor_signify_activity(0); // inactive, and should be after command_stop()
|
|
}
|
|
} else {
|
|
if (plist_dict_get_size(messagePlist) != 0) {
|
|
debug(1, "Connection %d from \"%s\": TEARDOWN (AP2 %s) %s Content-Length %d plist is non-empty but contains no \"streams\" item.", conn->connection_number, conn->ap2_client_name, get_category_string(conn->airplay_stream_category), req->path, req->contentlength);
|
|
debug_log_rtsp_message_conn(conn, 4, "Contents follow:", req);
|
|
}
|
|
msg_add_header(resp, "Connection", "close");
|
|
debug(4, "Connection %d from \"%s\": TEARDOWN (AP2 %s) %s Content-Length %d is asking to terminate the connection.", conn->connection_number, conn->ap2_client_name, get_category_string(conn->airplay_stream_category), req->path, req->contentlength);
|
|
conn->stop = 1;
|
|
}
|
|
plist_free(messagePlist);
|
|
} else {
|
|
debug(1, "Connection %d from \"%s\": TEARDOWN (AP2 %s) %s Content-Length %d has no plist -- nothing done.", conn->connection_number, conn->ap2_client_name, get_category_string(conn->airplay_stream_category), req->path, req->contentlength);
|
|
}
|
|
resp->respcode = 200;
|
|
}
|
|
#endif
|
|
|
|
void handle_flush(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug_log_rtsp_message(2, "FLUSH request", req);
|
|
debug(3, "Connection %d: FLUSH", conn->connection_number);
|
|
char *p = NULL;
|
|
uint32_t rtptime = 0;
|
|
char *hdr = msg_get_header(req, "RTP-Info");
|
|
|
|
if (hdr) {
|
|
// debug(1,"FLUSH message received: \"%s\".",hdr);
|
|
// get the rtp timestamp
|
|
p = strstr(hdr, "rtptime=");
|
|
if (p) {
|
|
p = strchr(p, '=');
|
|
if (p)
|
|
rtptime = uatoi(p + 1); // unsigned integer -- up to 2^32-1
|
|
}
|
|
}
|
|
debug(2, "RTSP Flush Requested: %u.", rtptime);
|
|
if ((conn != NULL) && (conn == principal_conn)) {
|
|
#ifdef CONFIG_METADATA
|
|
if (p)
|
|
send_metadata('ssnc', 'flsr', p + 1, strlen(p + 1), req, 1);
|
|
else
|
|
send_metadata('ssnc', 'flsr', NULL, 0, NULL, 0);
|
|
#endif
|
|
|
|
player_flush(rtptime, conn); // will not crash even it there is no player thread.
|
|
resp->respcode = 200;
|
|
|
|
} else {
|
|
warn("Connection %d FLUSH %u received without having the player", conn->connection_number,
|
|
rtptime);
|
|
resp->respcode = 451;
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
|
|
#ifdef CONFIG_METADATA
|
|
static void check_and_send_plist_metadata(plist_t messagePlist, const char *plist_key,
|
|
uint32_t metadata_code) {
|
|
plist_t item = plist_dict_get_item(messagePlist, plist_key);
|
|
if (item) {
|
|
char *value;
|
|
plist_get_string_val(item, &value);
|
|
if (value != NULL) {
|
|
send_metadata('ssnc', metadata_code, value, strlen(value), NULL, 0);
|
|
free(value);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void handle_setup_2(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
int err;
|
|
|
|
debug(4, "Connection %d from \"%s\": SETUP (AP2) %s Content-Length %d", conn->connection_number, conn->ap2_client_name, req->path, req->contentlength);
|
|
debug_log_rtsp_message_conn(conn, 4, "SETUP (AP2)", req);
|
|
|
|
plist_t messagePlist = plist_from_rtsp_content(req);
|
|
|
|
if (messagePlist != NULL) {
|
|
// if (conn->sessionPlist)
|
|
// plist_free(conn->sessionPlist);
|
|
conn->sessionPlist = messagePlist;
|
|
}
|
|
plist_t setupResponsePlist = plist_new_dict();
|
|
resp->respcode = 501;
|
|
|
|
// see if we can get a name for the client
|
|
|
|
plist_t nameItem = plist_dict_get_item(messagePlist, "name");
|
|
if (nameItem != NULL) {
|
|
if (conn->ap2_client_name)
|
|
free(conn->ap2_client_name);
|
|
plist_get_string_val(nameItem, &conn->ap2_client_name); // we need to free it!
|
|
}
|
|
|
|
// see if the incoming plist contains a "streams" array
|
|
plist_t streams = plist_dict_get_item(messagePlist, "streams");
|
|
if (streams == NULL) {
|
|
// no "streams" plist, so it must (?) be an initial setup
|
|
debug(2,
|
|
"Connection %d SETUP: No \"streams\" array has been found -- create an event thread "
|
|
"and open a TCP port.",
|
|
conn->connection_number);
|
|
conn->airplay_stream_category = unspecified_stream_category;
|
|
|
|
// figure out what category of stream it is, by looking at the plist
|
|
plist_t timingProtocol = plist_dict_get_item(messagePlist, "timingProtocol");
|
|
if (timingProtocol != NULL) {
|
|
char *timingProtocolString = NULL;
|
|
plist_get_string_val(timingProtocol, &timingProtocolString);
|
|
if (timingProtocolString) {
|
|
if (strcmp(timingProtocolString, "PTP") == 0) {
|
|
debug(2, "Connection %d: AP2 PTP connection from %s:%u (\"%s\") to self at %s:%u.",
|
|
conn->connection_number, conn->client_ip_string, conn->client_rtsp_port,
|
|
conn->ap2_client_name, conn->self_ip_string, conn->self_rtsp_port);
|
|
conn->airplay_stream_category = ptp_stream;
|
|
conn->timing_type = ts_ptp;
|
|
|
|
do_pthread_setname(&conn->thread, "ap2_ptp_%d", conn->connection_number);
|
|
|
|
} else if (strcmp(timingProtocolString, "NTP") == 0) {
|
|
debug(1, "Connection %d: SETUP: NTP setup from %s:%u (\"%s\") to self at %s:%u.",
|
|
conn->connection_number, conn->client_ip_string, conn->client_rtsp_port,
|
|
conn->ap2_client_name, conn->self_ip_string, conn->self_rtsp_port);
|
|
conn->airplay_stream_category = ntp_stream;
|
|
conn->timing_type = ts_ntp;
|
|
do_pthread_setname(&conn->thread, "ap2_ntp_%d", conn->connection_number);
|
|
} else if (strcmp(timingProtocolString, "None") == 0) {
|
|
debug(3,
|
|
"Connection %d: SETUP: a \"None\" setup detected from %s:%u (\"%s\") to self at "
|
|
"%s:%u.",
|
|
conn->connection_number, conn->client_ip_string, conn->client_rtsp_port,
|
|
conn->ap2_client_name, conn->self_ip_string, conn->self_rtsp_port);
|
|
// now check to see if it's got the "isRemoteControlOnly" item and check it's true
|
|
plist_t isRemoteControlOnly = plist_dict_get_item(messagePlist, "isRemoteControlOnly");
|
|
if (isRemoteControlOnly != NULL) {
|
|
uint8_t isRemoteControlOnlyBoolean = 0;
|
|
plist_get_bool_val(isRemoteControlOnly, &isRemoteControlOnlyBoolean);
|
|
if (isRemoteControlOnlyBoolean != 0) {
|
|
debug(2,
|
|
"Connection %d: SETUP: Remote Control Only connection from %s:%u (\"%s\") to "
|
|
"self at %s:%u.",
|
|
conn->connection_number, conn->client_ip_string, conn->client_rtsp_port,
|
|
conn->ap2_client_name, conn->self_ip_string, conn->self_rtsp_port);
|
|
conn->airplay_stream_category = remote_control_stream;
|
|
do_pthread_setname(&conn->thread, "ap2_rc_%d", conn->connection_number);
|
|
} else {
|
|
debug(1,
|
|
"Connection %d: SETUP: a \"None\" setup detected, with "
|
|
"\"isRemoteControlOnly\" item set to \"false\".",
|
|
conn->connection_number);
|
|
}
|
|
} else {
|
|
debug(1,
|
|
"Connection %d: SETUP: a \"None\" setup detected, but no "
|
|
"\"isRemoteControlOnly\" item detected.",
|
|
conn->connection_number);
|
|
}
|
|
}
|
|
|
|
debug(2,
|
|
"Connection %d from \"%s\": Initial (i.e. no streams array) SETUP (AirPlay 2) on %s",
|
|
conn->connection_number, conn->ap2_client_name,
|
|
get_category_string(conn->airplay_stream_category));
|
|
debug_log_rtsp_message_conn(
|
|
conn, 2, "Initial (i.e. no streams array) SETUP (AirPlay 2) incoming message", req);
|
|
|
|
// here, we know it's an initial setup and we know the kind of setup being requested
|
|
// if it's a full service PTP stream, we get groupUUID, groupContainsGroupLeader and
|
|
// timingPeerList
|
|
if (conn->airplay_stream_category == ptp_stream) {
|
|
|
|
// airplay 2 always allows interruption, so should never return
|
|
// play_lock_aquisition_failed
|
|
if (get_play_lock(conn, 1) != play_lock_aquisition_failed) {
|
|
debug(2, "Connection %d: %s AP2 setup -- play lock acquired.", conn->connection_number,
|
|
get_category_string(conn->airplay_stream_category));
|
|
|
|
#ifdef CONFIG_METADATA
|
|
send_ssnc_metadata('conn', conn->client_ip_string, strlen(conn->client_ip_string),
|
|
1); // before disconnecting an existing play
|
|
send_ssnc_metadata('clip', conn->client_ip_string, strlen(conn->client_ip_string), 1);
|
|
send_ssnc_metadata('svip', conn->self_ip_string, strlen(conn->self_ip_string), 1);
|
|
#endif
|
|
|
|
if (ptp_shm_interface_open() !=
|
|
0) // it should be open already, but just in case it isn't...
|
|
die("Can not access the NQPTP service. Has it stopped running?");
|
|
debug_log_rtsp_message(3, "SETUP \"PTP\" message", req);
|
|
plist_t groupUUID = plist_dict_get_item(messagePlist, "groupUUID");
|
|
if (groupUUID) {
|
|
char *gid = NULL;
|
|
plist_get_string_val(groupUUID, &gid);
|
|
if (gid) {
|
|
if (conn->airplay_gid)
|
|
free(conn->airplay_gid);
|
|
conn->airplay_gid = gid; // it'll be free'd later on...
|
|
} else {
|
|
debug(1, "Invalid groupUUID");
|
|
}
|
|
} else {
|
|
debug(1, "No groupUUID in SETUP");
|
|
}
|
|
|
|
// now see if the group contains a group leader
|
|
plist_t groupContainsGroupLeader =
|
|
plist_dict_get_item(messagePlist, "groupContainsGroupLeader");
|
|
if (groupContainsGroupLeader) {
|
|
uint8_t value = 0;
|
|
plist_get_bool_val(groupContainsGroupLeader, &value);
|
|
conn->groupContainsGroupLeader = value;
|
|
debug(3, "Updated groupContainsGroupLeader to %u", conn->groupContainsGroupLeader);
|
|
} else {
|
|
debug(1, "No groupContainsGroupLeader in SETUP");
|
|
}
|
|
|
|
char timing_list_message[4096];
|
|
timing_list_message[0] = 'T';
|
|
timing_list_message[1] = 0;
|
|
|
|
// ensure the client itself is first -- it's okay if it's duplicated later
|
|
strncat(timing_list_message, " ",
|
|
sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
strncat(timing_list_message, (const char *)&conn->client_ip_string,
|
|
sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
|
|
plist_t timing_peer_info = plist_dict_get_item(messagePlist, "timingPeerInfo");
|
|
if (timing_peer_info) {
|
|
// first, get the incoming plist.
|
|
plist_t addresses_array = plist_dict_get_item(timing_peer_info, "Addresses");
|
|
if (addresses_array) {
|
|
// iterate through the array of items
|
|
uint32_t items = plist_array_get_size(addresses_array);
|
|
if (items) {
|
|
uint32_t item;
|
|
for (item = 0; item < items; item++) {
|
|
plist_t n = plist_array_get_item(addresses_array, item);
|
|
char *ip_address = NULL;
|
|
plist_get_string_val(n, &ip_address);
|
|
// debug(1, "Timing peer: %s", ip_address);
|
|
strncat(timing_list_message, " ",
|
|
sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
strncat(timing_list_message, ip_address,
|
|
sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
free(ip_address);
|
|
}
|
|
} else {
|
|
debug(1, "SETUP on Connection %d: No timingPeerInfo addresses in the array.",
|
|
conn->connection_number);
|
|
}
|
|
} else {
|
|
debug(1, "SETUP on Connection %d: Can't find timingPeerInfo addresses",
|
|
conn->connection_number);
|
|
}
|
|
// make up the timing peer info list part of the response...
|
|
// debug(1,"Create timingPeerInfoPlist");
|
|
plist_t timingPeerInfoPlist = plist_new_dict();
|
|
plist_t addresses = plist_new_array(); // to hold the device's interfaces
|
|
plist_array_append_item(addresses, plist_new_string(conn->self_ip_string));
|
|
// debug(1,"self ip: \"%s\"", conn->self_ip_string);
|
|
|
|
int oldState;
|
|
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &oldState); // make this un-cancellable
|
|
struct ifaddrs *addrs, *iap;
|
|
getifaddrs(&addrs);
|
|
for (iap = addrs; iap != NULL; iap = iap->ifa_next) {
|
|
// debug(1, "Interface index %d, name: \"%s\"",if_nametoindex(iap->ifa_name),
|
|
// iap->ifa_name);
|
|
if ((iap->ifa_addr) && (iap->ifa_netmask) && (iap->ifa_flags & IFF_UP) &&
|
|
((iap->ifa_flags & IFF_LOOPBACK) == 0)) {
|
|
char buf[INET6_ADDRSTRLEN + 1]; // +1 for a NUL
|
|
memset(buf, 0, sizeof(buf));
|
|
if (iap->ifa_addr->sa_family == AF_INET6) {
|
|
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)(iap->ifa_addr);
|
|
inet_ntop(AF_INET6, (void *)&addr6->sin6_addr, buf, sizeof(buf));
|
|
plist_array_append_item(addresses, plist_new_string(buf));
|
|
// debug(1, "Own address IPv6: %s", buf);
|
|
|
|
// strncat(timing_list_message, " ",
|
|
// sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
// strncat(timing_list_message, buf,
|
|
// sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
|
|
} else {
|
|
struct sockaddr_in *addr = (struct sockaddr_in *)(iap->ifa_addr);
|
|
inet_ntop(AF_INET, (void *)&addr->sin_addr, buf, sizeof(buf));
|
|
plist_array_append_item(addresses, plist_new_string(buf));
|
|
// debug(1, "Own address IPv4: %s", buf);
|
|
|
|
// strncat(timing_list_message, " ",
|
|
// sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
// strncat(timing_list_message, buf,
|
|
// sizeof(timing_list_message) - 1 - strlen(timing_list_message));
|
|
}
|
|
}
|
|
}
|
|
freeifaddrs(addrs);
|
|
pthread_setcancelstate(oldState, NULL);
|
|
|
|
// debug(1,"initial timing peer command: \"%s\".", timing_list_message);
|
|
// ptp_send_control_message_string(timing_list_message);
|
|
// deferring this until play is about to start
|
|
// set_client_as_ptp_clock(conn);
|
|
// ptp_send_control_message_string("B"); // signify clock dependability period is
|
|
// "B"eginning (or continuing)
|
|
plist_dict_set_item(timingPeerInfoPlist, "Addresses", addresses);
|
|
plist_dict_set_item(timingPeerInfoPlist, "ID",
|
|
plist_new_string(conn->self_ip_string));
|
|
plist_dict_set_item(setupResponsePlist, "timingPeerInfo", timingPeerInfoPlist);
|
|
// get a port to use as an event port
|
|
// bind a new TCP port and get a socket
|
|
conn->local_event_port = 0; // any port
|
|
int lerr = bind_socket_and_port(SOCK_STREAM, conn->connection_ip_family,
|
|
conn->self_ip_string, conn->self_scope_id,
|
|
&conn->local_event_port, &conn->event_socket);
|
|
if (lerr) {
|
|
die("SETUP on Connection %d: Error %d: could not find a TCP port to use as an "
|
|
"event "
|
|
"port",
|
|
conn->connection_number, lerr);
|
|
}
|
|
|
|
listen(conn->event_socket, 128); // ensure socket is open before telling client
|
|
|
|
debug(2, "Connection %d: TCP PTP event port opened: %u.", conn->connection_number,
|
|
conn->local_event_port);
|
|
|
|
if (conn->rtp_event_thread != NULL)
|
|
debug(1, "previous rtp_event_thread allocation not freed, it seems.");
|
|
conn->ap2_event_receiver_exited = 0;
|
|
conn->rtp_event_thread = malloc(sizeof(pthread_t));
|
|
if (conn->rtp_event_thread == NULL)
|
|
die("Couldn't allocate space for pthread_t");
|
|
|
|
named_pthread_create(conn->rtp_event_thread, NULL, &ap2_event_receiver, (void *)conn,
|
|
"ap2_ptp_evt_%d", conn->connection_number);
|
|
plist_dict_set_item(setupResponsePlist, "eventPort",
|
|
plist_new_uint(conn->local_event_port));
|
|
plist_dict_set_item(setupResponsePlist, "timingPort", plist_new_uint(0)); // dummy
|
|
// cancel_all_RTSP_threads(ptp_stream,
|
|
// conn->connection_number); // kill all the other listeners
|
|
resp->respcode = 200;
|
|
} else {
|
|
debug(1, "SETUP on Connection %d: PTP setup -- no timingPeerInfo plist.",
|
|
conn->connection_number);
|
|
}
|
|
|
|
// since the GID from the client has been acquired, update the airplay bonjour strings.
|
|
build_bonjour_strings(conn);
|
|
debug(2, "Connection %d: SETUP mdns_update on %s.", conn->connection_number,
|
|
get_category_string(conn->airplay_stream_category));
|
|
if (config.service_type == APST_airplay2) {
|
|
mdns_update(NULL, secondary_txt_records);
|
|
}
|
|
|
|
#ifdef CONFIG_METADATA
|
|
check_and_send_plist_metadata(messagePlist, "name", 'snam');
|
|
check_and_send_plist_metadata(messagePlist, "deviceID", 'cdid');
|
|
check_and_send_plist_metadata(messagePlist, "model", 'cmod');
|
|
check_and_send_plist_metadata(messagePlist, "macAddress", 'cmac');
|
|
#endif
|
|
} else {
|
|
// this should never happen!
|
|
debug(1, "SETUP on Connection %d: could not become principal conn.",
|
|
conn->connection_number);
|
|
resp->respcode = 453;
|
|
}
|
|
} else if (conn->airplay_stream_category == ntp_stream) {
|
|
debug(1, "SETUP on Connection %d: ntp stream handling is not implemented!",
|
|
conn->connection_number);
|
|
warn("Shairport Sync can not handle NTP streams.");
|
|
} else if (conn->airplay_stream_category == remote_control_stream) {
|
|
|
|
debug_log_rtsp_message(3, "SETUP (no stream) \"isRemoteControlOnly\" message", req);
|
|
|
|
// get a port to use as an event port
|
|
// bind a new TCP port and get a socket
|
|
conn->local_event_port = 0; // any port
|
|
int lerr = bind_socket_and_port(SOCK_STREAM, conn->connection_ip_family,
|
|
conn->self_ip_string, conn->self_scope_id,
|
|
&conn->local_event_port, &conn->event_socket);
|
|
if (lerr) {
|
|
die("SETUP on Connection %d: Error %d: could not find a TCP port to use as an event "
|
|
"port",
|
|
conn->connection_number, lerr);
|
|
}
|
|
|
|
listen(conn->event_socket, 128); // ensure socket is open before telling client
|
|
|
|
debug(2, "Connection %d SETUP (RC): TCP Remote Control event port opened: %u.",
|
|
conn->connection_number, conn->local_event_port);
|
|
if (conn->rtp_event_thread != NULL)
|
|
debug(1,
|
|
"Connection %d SETUP (RC): previous rtp_event_thread allocation not freed, it "
|
|
"seems.",
|
|
conn->connection_number);
|
|
conn->ap2_event_receiver_exited = 0;
|
|
conn->rtp_event_thread = malloc(sizeof(pthread_t));
|
|
if (conn->rtp_event_thread == NULL)
|
|
die("Couldn't allocate space for pthread_t");
|
|
named_pthread_create(conn->rtp_event_thread, NULL, &ap2_event_receiver, (void *)conn,
|
|
"ap2_rc_evt_%d", conn->connection_number);
|
|
plist_dict_set_item(setupResponsePlist, "eventPort",
|
|
plist_new_uint(conn->local_event_port));
|
|
debug(2, "SETUP on Connection %d: RemoteControl Only eventPort %u.",
|
|
conn->connection_number, conn->local_event_port);
|
|
// plist_dict_set_item(setupResponsePlist, "timingPort", plist_new_uint(0));
|
|
// cancel_all_RTSP_threads(
|
|
// remote_control_stream,
|
|
// conn->connection_number); // kill all the other remote control listeners
|
|
|
|
resp->respcode = 200;
|
|
} else {
|
|
debug(1, "SETUP on Connection %d: an unrecognised \"%s\" setup detected.",
|
|
conn->connection_number, timingProtocolString);
|
|
warn("Shairport Sync can not handle streams of this type: \"%s\".", timingProtocolString);
|
|
}
|
|
free(timingProtocolString);
|
|
} else {
|
|
debug(1, "SETUP on Connection %d: Can't retrieve timingProtocol string in initial SETUP.",
|
|
conn->connection_number);
|
|
}
|
|
} else {
|
|
debug(1,
|
|
"SETUP on Connection %d: Unrecognised SETUP incoming message from \"%s\": no "
|
|
"timingProtocol or streams plist found.",
|
|
conn->connection_number, (const char *)conn->client_ip_string);
|
|
debug_log_rtsp_message(1, "Unrecognised SETUP incoming message.", req);
|
|
warn("Unrecognised SETUP incoming message -- ignored.");
|
|
}
|
|
} else {
|
|
|
|
if (conn->airplay_stream_category == ptp_stream) {
|
|
|
|
if (conn->player_thread) {
|
|
debug(1, "stopping a running player during setup phase 2");
|
|
player_stop(conn); // this nulls the player_thread and cancels the threads...
|
|
activity_monitor_signify_activity(0); // inactive, and should be after command_stop()
|
|
}
|
|
|
|
set_client_as_ptp_clock(conn);
|
|
ptp_send_control_message_string(
|
|
"B"); // signify clock dependability period is "B"eginning (or continuing)
|
|
plist_t stream0 = plist_array_get_item(streams, 0);
|
|
|
|
plist_t streams_array = plist_new_array(); // to hold the ports and stuff
|
|
plist_t stream0dict = plist_new_dict();
|
|
|
|
// get the session key -- it must have one
|
|
|
|
plist_t item = plist_dict_get_item(stream0, "shk"); // session key
|
|
uint64_t item_value = 0;
|
|
if (item != NULL) {
|
|
plist_get_data_val(item, (char **)&conn->session_key,
|
|
&item_value); // item_value is the session key length (?)
|
|
} else {
|
|
warn("No session key (shk) property in setup! This is fatal!");
|
|
}
|
|
|
|
// get the compression type
|
|
// this seems to be static -- a stream's encoding can change dynamically, it seems
|
|
item = plist_dict_get_item(stream0, "ct"); // compression type
|
|
if (item != NULL) {
|
|
plist_get_uint_val(item, &item_value);
|
|
conn->compressionType = item_value;
|
|
// see https://emanuelecozzi.net/docs/airplay2/audio/ for values
|
|
} else {
|
|
debug(1, "No compression type (ct) property found in setup.");
|
|
}
|
|
|
|
// get the max frames per packet
|
|
item = plist_dict_get_item(stream0, "spf"); // samples per frame (?)
|
|
if (item != NULL) {
|
|
plist_get_uint_val(item, &item_value);
|
|
// see https://emanuelecozzi.net/docs/airplay2/audio/ for values
|
|
debug(3, "Frames per packet (aka spf (\"samples per frame\"?): %" PRId64 ".", item_value);
|
|
conn->frames_per_packet = item_value;
|
|
} else {
|
|
warn("No frames per packet (spf) property found in setup!");
|
|
}
|
|
|
|
// bind a new UDP port and get a socket
|
|
conn->local_ap2_control_port = 0; // any port
|
|
err = bind_socket_and_port(SOCK_DGRAM, conn->connection_ip_family, conn->self_ip_string,
|
|
conn->self_scope_id, &conn->local_ap2_control_port,
|
|
&conn->ap2_control_socket);
|
|
if (err) {
|
|
die("Error %d: could not find a UDP port to use as an ap2_control port", err);
|
|
}
|
|
debug(2, "Connection %d: UDP control port opened: %u.", conn->connection_number,
|
|
conn->local_ap2_control_port);
|
|
|
|
named_pthread_create(&conn->rtp_ap2_control_thread, NULL, &rtp_ap2_control_receiver,
|
|
(void *)conn, "ap2_cn_%d", conn->connection_number);
|
|
|
|
// get the DACP-ID and Active Remote for remote control stuff
|
|
|
|
char *ar = msg_get_header(req, "Active-Remote");
|
|
if (ar) {
|
|
debug(3, "Connection %d: SETUP AP2 -- Active-Remote string seen: \"%s\".",
|
|
conn->connection_number, ar);
|
|
// get the active remote
|
|
if (conn->dacp_active_remote) // this is in case SETUP was previously called
|
|
free(conn->dacp_active_remote);
|
|
conn->dacp_active_remote = strdup(ar);
|
|
#ifdef CONFIG_METADATA
|
|
send_metadata('ssnc', 'acre', ar, strlen(ar), req, 1);
|
|
#endif
|
|
} else {
|
|
debug(2, "Connection %d: SETUP AP2 no Active-Remote information in the the SETUP Record.",
|
|
conn->connection_number);
|
|
if (conn->dacp_active_remote) { // this is in case SETUP was previously called
|
|
free(conn->dacp_active_remote);
|
|
conn->dacp_active_remote = NULL;
|
|
}
|
|
}
|
|
|
|
ar = msg_get_header(req, "DACP-ID");
|
|
if (ar) {
|
|
debug(3, "Connection %d: SETUP AP2 -- DACP-ID string seen: \"%s\".",
|
|
conn->connection_number, ar);
|
|
if (conn->dacp_id) // this is in case SETUP was previously called
|
|
free(conn->dacp_id);
|
|
conn->dacp_id = strdup(ar);
|
|
#ifdef CONFIG_METADATA
|
|
send_metadata('ssnc', 'daid', ar, strlen(ar), req, 1);
|
|
#endif
|
|
} else {
|
|
debug(2, "Connection %d: SETUP AP2 doesn't include DACP-ID string information.",
|
|
conn->connection_number);
|
|
if (conn->dacp_id) { // this is in case SETUP was previously called
|
|
free(conn->dacp_id);
|
|
conn->dacp_id = NULL;
|
|
}
|
|
}
|
|
|
|
// now, get the type of the stream.
|
|
item = plist_dict_get_item(stream0, "type");
|
|
item_value = 0;
|
|
plist_get_uint_val(item, &item_value);
|
|
conn->type = item_value;
|
|
switch (item_value) {
|
|
case 96: {
|
|
debug(4, "Connection %d. AP2 Realtime Audio Stream SETUP.", conn->connection_number);
|
|
debug_log_rtsp_message(4, "AP2 Realtime Audio Stream SETUP incoming message:", req);
|
|
|
|
conn->stream.type = ast_apple_lossless;
|
|
conn->airplay_stream_type = realtime_stream;
|
|
// get the sample rate
|
|
item = plist_dict_get_item(stream0, "sr"); // sample rate
|
|
if (item != NULL) {
|
|
plist_get_uint_val(item, &item_value);
|
|
// see https://emanuelecozzi.net/docs/airplay2/audio/ for values
|
|
conn->input_rate = item_value;
|
|
debug(4, "Set conn->input_rate: %u.", conn->input_rate);
|
|
} else {
|
|
debug(1, "Connection %d. No sample rate (sr) property found in setup.",
|
|
conn->connection_number);
|
|
}
|
|
|
|
item = plist_dict_get_item(stream0, "spf"); // samples per frame
|
|
if (item != NULL) {
|
|
plist_get_uint_val(item, &item_value);
|
|
conn->frames_per_packet = item_value;
|
|
debug(4, "Set conn->frames_per_packet: %u.", conn->frames_per_packet);
|
|
} else {
|
|
debug(1, "Connection %d. No samples per frame (spf) property found in setup.",
|
|
conn->connection_number);
|
|
}
|
|
|
|
// bind a new UDP port and get a socket
|
|
conn->local_realtime_audio_port = 0; // any port
|
|
err = bind_socket_and_port(SOCK_DGRAM, conn->connection_ip_family, conn->self_ip_string,
|
|
conn->self_scope_id, &conn->local_realtime_audio_port,
|
|
&conn->realtime_audio_socket);
|
|
if (err) {
|
|
die("Error %d: could not find a UDP port to use as a realtime_audio port", err);
|
|
}
|
|
debug(2, "Connection %d: UDP realtime audio port opened: %u.", conn->connection_number,
|
|
conn->local_realtime_audio_port);
|
|
|
|
named_pthread_create(&conn->rtp_realtime_audio_thread, NULL, &rtp_realtime_audio_receiver,
|
|
(void *)conn, "ap2_ra_%d", conn->connection_number);
|
|
plist_dict_set_item(stream0dict, "type", plist_new_uint(96));
|
|
plist_dict_set_item(stream0dict, "dataPort",
|
|
plist_new_uint(conn->local_realtime_audio_port));
|
|
|
|
debug(2, "Realtime Stream Play");
|
|
activity_monitor_signify_activity(1);
|
|
player_play(conn);
|
|
|
|
conn->rtp_running = 1; // hack!
|
|
} break;
|
|
case 103: {
|
|
debug_log_rtsp_message(3, "Buffered Audio Stream SETUP incoming message", req);
|
|
conn->airplay_stream_type = buffered_stream;
|
|
|
|
// get the audio format code
|
|
item = plist_dict_get_item(stream0, "audioFormat"); // audio format
|
|
if (item != NULL) {
|
|
plist_get_uint_val(item, &conn->audio_format);
|
|
// see https://emanuelecozzi.net/docs/airplay2/audio/ for values
|
|
// seems to be only the initial format -- it seems as if it can change dynamically
|
|
} else {
|
|
debug(1, "No audio format (audioFormat) property found in setup.");
|
|
}
|
|
|
|
// bind a new TCP port and get a socket
|
|
conn->local_buffered_audio_port = 0; // any port
|
|
err = bind_socket_and_port(SOCK_STREAM, conn->connection_ip_family, conn->self_ip_string,
|
|
conn->self_scope_id, &conn->local_buffered_audio_port,
|
|
&conn->buffered_audio_socket);
|
|
if (err) {
|
|
die("SETUP on Connection %d: Error %d: could not find a TCP port to use as a "
|
|
"buffered_audio port",
|
|
conn->connection_number, err);
|
|
}
|
|
|
|
listen(conn->buffered_audio_socket, 128); // ensure it's open before telling the client
|
|
|
|
debug(2, "Connection %d: TCP Buffered Audio port opened: %u.", conn->connection_number,
|
|
conn->local_buffered_audio_port);
|
|
|
|
activity_monitor_signify_activity(1);
|
|
|
|
// debug(1, "Connection %d: create rtp_buffered_audio_thread", conn->connection_number);
|
|
|
|
named_pthread_create_with_priority(&conn->rtp_buffered_audio_thread, 2,
|
|
&rtp_buffered_audio_processor, (void *)conn, "ap2_ba_%d",
|
|
conn->connection_number);
|
|
|
|
plist_dict_set_item(stream0dict, "type", plist_new_uint(103));
|
|
plist_dict_set_item(stream0dict, "dataPort",
|
|
plist_new_uint(conn->local_buffered_audio_port));
|
|
plist_dict_set_item(stream0dict, "audioBufferSize",
|
|
plist_new_uint(conn->ap2_audio_buffer_size));
|
|
|
|
// this should be cancelled by an activity_monitor_signify_activity(1)
|
|
// call in the SETRATEANCHORI handler, which should come up right away
|
|
activity_monitor_signify_activity(0);
|
|
player_play(conn);
|
|
conn->rtp_running = 1; // hack!
|
|
} break;
|
|
case 130: {
|
|
debug(1, "Remote Control Setup Received on a PTP connection.");
|
|
debug_log_rtsp_message(2, "Incoming message", req);
|
|
} break;
|
|
default:
|
|
debug(1, "SETUP on Connection %d: Unhandled stream type %" PRIu64 ".",
|
|
conn->connection_number, item_value);
|
|
debug_log_rtsp_message(1, "Unhandled stream type incoming message", req);
|
|
}
|
|
|
|
plist_dict_set_item(stream0dict, "controlPort", plist_new_uint(conn->local_ap2_control_port));
|
|
|
|
plist_array_append_item(streams_array, stream0dict);
|
|
plist_dict_set_item(setupResponsePlist, "streams", streams_array);
|
|
|
|
resp->respcode = 200;
|
|
} else if (conn->airplay_stream_category == remote_control_stream) {
|
|
debug(3, "Connection %d (RC): SETUP: Remote Control Only with stream received from %s.",
|
|
conn->connection_number, conn->client_ip_string);
|
|
debug_log_rtsp_message(3, "Remote Control Stream SETUP incoming message", req);
|
|
|
|
plist_t seed_item = NULL;
|
|
// the data port and listener thread may already have been set up
|
|
// if so, the local_data_port will be non-zero
|
|
|
|
if (conn->local_data_port == 0) {
|
|
// set up data channel ciphering
|
|
plist_t dict = plist_array_get_item(streams, 0);
|
|
if (dict != NULL) {
|
|
// get the seed that becomes the suffix for the salt
|
|
seed_item = plist_dict_get_item(dict, "seed"); // session key
|
|
uint64_t seed = 0;
|
|
if (seed_item != NULL) {
|
|
plist_get_uint_val(seed_item, &seed);
|
|
char salt_suffix[256] = "";
|
|
snprintf(salt_suffix, sizeof(salt_suffix), "%" PRIu64 "", seed);
|
|
conn->ap2_pairing_context.data_cipher_bundle.cipher_ctx =
|
|
pair_cipher_new(PAIR_SERVER_HOMEKIT, 5, conn->pair_setup_result->shared_secret,
|
|
conn->pair_setup_result->shared_secret_len,
|
|
salt_suffix); // last argument is the (possible) dynamic salt suffix
|
|
if (conn->ap2_pairing_context.data_cipher_bundle.cipher_ctx != NULL) {
|
|
conn->ap2_pairing_context.data_cipher_bundle.description = strdup("DataStream");
|
|
// get a port to use as an data port
|
|
// bind a new TCP port and get a socket
|
|
conn->local_data_port = 0; // any port
|
|
int lerr = bind_socket_and_port(SOCK_STREAM, conn->connection_ip_family,
|
|
conn->self_ip_string, conn->self_scope_id,
|
|
&conn->local_data_port, &conn->data_socket);
|
|
if (lerr) {
|
|
die("SETUP on Connection %d (RC): Error %d: could not find a TCP port to use as a "
|
|
"data "
|
|
"port",
|
|
conn->connection_number, lerr);
|
|
}
|
|
listen(conn->data_socket,
|
|
128); // open port for listening before telling the client about it!
|
|
|
|
debug(2, "Connection %d SETUP (RC): TCP Remote Control data port opened: %u.",
|
|
conn->connection_number, conn->local_data_port);
|
|
} else {
|
|
debug(1, "Connection %d: SETUP: Error setting up rtsp data channel ciphering.",
|
|
conn->connection_number);
|
|
}
|
|
} else {
|
|
debug(2, "Connection %d: SETUP: No data channel encryption salt seed found.",
|
|
conn->connection_number);
|
|
}
|
|
} else {
|
|
debug(1, "Connection %d: SETUP: Could not find the streams array",
|
|
conn->connection_number);
|
|
}
|
|
} else {
|
|
debug(1, "Connection %d SETUP (RC): data port already allocated.", conn->connection_number);
|
|
}
|
|
plist_t coreResponseDict = plist_new_dict();
|
|
plist_dict_set_item(coreResponseDict, "streamID", plist_new_uint(1));
|
|
plist_dict_set_item(coreResponseDict, "type", plist_new_uint(130));
|
|
if (seed_item != NULL)
|
|
plist_dict_set_item(coreResponseDict, "dataPort", plist_new_uint(conn->local_data_port));
|
|
|
|
plist_t coreResponseArray = plist_new_array();
|
|
plist_array_append_item(coreResponseArray, coreResponseDict);
|
|
plist_dict_set_item(setupResponsePlist, "streams", coreResponseArray);
|
|
|
|
resp->respcode = 200;
|
|
} else {
|
|
debug(1, "Connection %d: SETUP: Stream received but no airplay category set. Nothing done.",
|
|
conn->connection_number);
|
|
}
|
|
}
|
|
|
|
if (resp->respcode == 200) {
|
|
plist_to_bin(setupResponsePlist, &resp->content, &resp->contentlength);
|
|
plist_free(setupResponsePlist);
|
|
msg_add_header(resp, "Content-Type", "application/x-apple-binary-plist");
|
|
}
|
|
plist_free(messagePlist);
|
|
}
|
|
#endif
|
|
|
|
void handle_setup(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug(3, "Connection %d: SETUP", conn->connection_number);
|
|
resp->respcode = 451; // invalid arguments -- expect them
|
|
// check this connection has the principal_conn, obtained during a prior ANNOUNCE
|
|
if ((conn != NULL) && (principal_conn == conn)) {
|
|
uint16_t cport, tport;
|
|
char *ar = msg_get_header(req, "Active-Remote");
|
|
if (ar) {
|
|
debug(2, "Connection %d: SETUP: Active-Remote string seen: \"%s\".", conn->connection_number,
|
|
ar);
|
|
// get the active remote
|
|
if (conn->dacp_active_remote) // this is in case SETUP was previously called
|
|
free(conn->dacp_active_remote);
|
|
conn->dacp_active_remote = strdup(ar);
|
|
#ifdef CONFIG_METADATA
|
|
send_metadata('ssnc', 'acre', ar, strlen(ar), req, 1);
|
|
#endif
|
|
} else {
|
|
debug(2, "Connection %d: SETUP: Note: no Active-Remote information seen.",
|
|
conn->connection_number);
|
|
if (conn->dacp_active_remote) { // this is in case SETUP was previously called
|
|
free(conn->dacp_active_remote);
|
|
conn->dacp_active_remote = NULL;
|
|
}
|
|
}
|
|
|
|
ar = msg_get_header(req, "DACP-ID");
|
|
if (ar) {
|
|
debug(2, "Connection %d: SETUP: DACP-ID string seen: \"%s\".", conn->connection_number, ar);
|
|
if (conn->dacp_id) // this is in case SETUP was previously called
|
|
free(conn->dacp_id);
|
|
conn->dacp_id = strdup(ar);
|
|
#ifdef CONFIG_METADATA
|
|
send_metadata('ssnc', 'daid', ar, strlen(ar), req, 1);
|
|
#endif
|
|
} else {
|
|
debug(2, "Connection %d: SETUP doesn't include DACP-ID string information.",
|
|
conn->connection_number);
|
|
if (conn->dacp_id) { // this is in case SETUP was previously called
|
|
free(conn->dacp_id);
|
|
conn->dacp_id = NULL;
|
|
}
|
|
}
|
|
|
|
char *hdr = msg_get_header(req, "Transport");
|
|
if (hdr) {
|
|
char *p;
|
|
p = strstr(hdr, "control_port=");
|
|
if (p) {
|
|
p = strchr(p, '=') + 1;
|
|
cport = atoi(p);
|
|
|
|
p = strstr(hdr, "timing_port=");
|
|
if (p) {
|
|
p = strchr(p, '=') + 1;
|
|
tport = atoi(p);
|
|
|
|
if (conn->rtp_running) {
|
|
if ((conn->remote_control_port != cport) || (conn->remote_timing_port != tport)) {
|
|
warn("Connection %d: Duplicate SETUP message with different control (old %u, new %u) "
|
|
"or "
|
|
"timing (old %u, new "
|
|
"%u) ports! This is probably fatal!",
|
|
conn->connection_number, conn->remote_control_port, cport,
|
|
conn->remote_timing_port, tport);
|
|
} else {
|
|
warn("Connection %d: Duplicate SETUP message with the same control (%u) and timing "
|
|
"(%u) "
|
|
"ports. This is "
|
|
"probably not fatal.",
|
|
conn->connection_number, conn->remote_control_port, conn->remote_timing_port);
|
|
}
|
|
} else {
|
|
rtp_setup(&conn->local, &conn->remote, cport, tport, conn);
|
|
}
|
|
if (conn->local_audio_port != 0) {
|
|
|
|
char resphdr[256] = "";
|
|
snprintf(resphdr, sizeof(resphdr),
|
|
"RTP/AVP/"
|
|
"UDP;unicast;interleaved=0-1;mode=record;control_port=%d;"
|
|
"timing_port=%d;server_"
|
|
"port=%d",
|
|
conn->local_control_port, conn->local_timing_port, conn->local_audio_port);
|
|
|
|
msg_add_header(resp, "Transport", resphdr);
|
|
|
|
msg_add_header(resp, "Session", "1");
|
|
|
|
resp->respcode = 200; // it all worked out okay
|
|
debug(2,
|
|
"Connection %d: SETUP DACP-ID \"%s\" from %s to %s with UDP ports Control: "
|
|
"%d, Timing: %d and Audio: %d.",
|
|
conn->connection_number, conn->dacp_id, (char *)&conn->client_ip_string,
|
|
(char *)&conn->self_ip_string, conn->local_control_port, conn->local_timing_port,
|
|
conn->local_audio_port);
|
|
|
|
} else {
|
|
debug(1, "Connection %d: SETUP seems to specify a null audio port.",
|
|
conn->connection_number);
|
|
}
|
|
} else {
|
|
debug(1, "Connection %d: SETUP doesn't specify a timing_port.", conn->connection_number);
|
|
}
|
|
} else {
|
|
debug(1, "Connection %d: SETUP doesn't specify a control_port.", conn->connection_number);
|
|
}
|
|
} else {
|
|
debug(1, "Connection %d: SETUP doesn't contain a Transport header.", conn->connection_number);
|
|
}
|
|
} else {
|
|
warn("Connection %d SETUP received without having the player (no ANNOUNCE?)",
|
|
conn->connection_number);
|
|
}
|
|
if (resp->respcode == 200) {
|
|
do_pthread_setname(&conn->thread, "rtsp_1_%d", conn->connection_number);
|
|
#ifdef CONFIG_METADATA
|
|
send_ssnc_metadata('clip', conn->client_ip_string, strlen(conn->client_ip_string), 1);
|
|
send_ssnc_metadata('svip', conn->self_ip_string, strlen(conn->self_ip_string), 1);
|
|
#endif
|
|
} else {
|
|
debug(1, "Connection %d: SETUP error -- releasing the player lock.", conn->connection_number);
|
|
release_play_lock(conn);
|
|
}
|
|
}
|
|
|
|
/*
|
|
static void handle_ignore(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug(1, "Connection thread %d: IGNORE", conn->connection_number);
|
|
resp->respcode = 200;
|
|
}
|
|
*/
|
|
|
|
void handle_set_parameter_parameter(rtsp_conn_info *conn, rtsp_message *req,
|
|
__attribute__((unused)) rtsp_message *resp) {
|
|
|
|
char *cp = req->content;
|
|
int cp_left = req->contentlength;
|
|
/*
|
|
int k = cp_left;
|
|
if (k>max_bytes)
|
|
k = max_bytes;
|
|
for (i = 0; i < k; i++)
|
|
snprintf((char *)buf + 2 * i, 3, "%02x", cp[i]);
|
|
debug(1, "handle_set_parameter_parameter: \"%s\".",buf);
|
|
*/
|
|
|
|
char *next;
|
|
while (cp_left && cp) {
|
|
next = nextline(cp, cp_left);
|
|
// note: "next" will return NULL if there is no \r or \n or \r\n at the end of this
|
|
// but we are always guaranteed that if cp is not null, it will be pointing to something
|
|
// NUL-terminated
|
|
|
|
if (next)
|
|
cp_left -= (next - cp);
|
|
else
|
|
cp_left = 0;
|
|
|
|
if (!strncmp(cp, "volume: ", strlen("volume: "))) {
|
|
float volume = atof(cp + strlen("volume: "));
|
|
debug(3, "Connection %d: request to set AirPlay Volume to: %f.", conn->connection_number,
|
|
volume);
|
|
// if we are playing, go ahead and change the volume
|
|
// #ifdef CONFIG_DBUS_INTERFACE
|
|
// if (dbus_service_is_running()) {
|
|
// shairport_sync_set_volume(shairportSyncSkeleton, volume);
|
|
// } else {
|
|
// #endif
|
|
pthread_rwlock_rdlock(&principal_conn_lock); // don't let the principal_conn be changed
|
|
pthread_cleanup_push(rwlock_unlock, (void *)&principal_conn_lock);
|
|
if (principal_conn == conn) {
|
|
debug(3, "Connection %d: set player volume to %.3f.", conn->connection_number, volume);
|
|
player_volume(volume, conn);
|
|
debug(3, "Connection %d: set player volume to %.3f success.", conn->connection_number,
|
|
volume);
|
|
} else {
|
|
if (principal_conn != NULL)
|
|
debug(1, "Connection %d: fail to set player volume to %.3f. Principal conn is %d.",
|
|
conn->connection_number, volume, principal_conn->connection_number);
|
|
else
|
|
debug(1, "Connection %d: fail to set player volume to %.3f. Principal conn is NULL.",
|
|
conn->connection_number, volume);
|
|
}
|
|
if (conn != NULL) {
|
|
conn->own_airplay_volume = volume;
|
|
conn->own_airplay_volume_set = 1;
|
|
}
|
|
pthread_cleanup_pop(1); // release the principal_conn lock
|
|
// #ifdef CONFIG_DBUS_INTERFACE
|
|
// }
|
|
// #endif
|
|
} else if (strncmp(cp, "progress: ", strlen("progress: ")) ==
|
|
0) { // this can be sent even when metadata is not solicited
|
|
|
|
#ifdef CONFIG_METADATA
|
|
char *progress = cp + strlen("progress: ");
|
|
// debug(2, "progress: \"%s\"",progress); // rtpstampstart/rtpstampnow/rtpstampend 44100
|
|
// (always?) per second
|
|
send_ssnc_metadata('prgr', progress, strlen(progress), 1);
|
|
#endif
|
|
|
|
} else {
|
|
debug(1, "Connection %d, unrecognised parameter: \"%s\"\n", conn->connection_number, cp);
|
|
}
|
|
cp = next;
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_METADATA
|
|
|
|
static void handle_set_parameter_metadata(__attribute__((unused)) rtsp_conn_info *conn,
|
|
rtsp_message *req,
|
|
__attribute__((unused)) rtsp_message *resp) {
|
|
char *cp = req->content;
|
|
unsigned int cl = req->contentlength;
|
|
|
|
unsigned int off = 8;
|
|
|
|
uint32_t itag, vl;
|
|
while (off + 8 <= cl) {
|
|
// pick up the metadata tag as an unsigned longint
|
|
memcpy(&itag, (uint32_t *)(cp + off), sizeof(uint32_t)); /* can be misaligned, thus memcpy */
|
|
itag = ntohl(itag);
|
|
off += sizeof(uint32_t);
|
|
|
|
// pick up the length of the data
|
|
memcpy(&vl, (uint32_t *)(cp + off), sizeof(uint32_t)); /* can be misaligned, thus memcpy */
|
|
vl = ntohl(vl);
|
|
off += sizeof(uint32_t);
|
|
|
|
if (vl > cl - off)
|
|
break;
|
|
|
|
// pass the data over
|
|
if (vl == 0)
|
|
send_metadata('core', itag, NULL, 0, NULL, 1);
|
|
else
|
|
send_metadata('core', itag, (char *)(cp + off), vl, req, 1);
|
|
|
|
// move on to the next item
|
|
off += vl;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
static void handle_get_parameter(__attribute__((unused)) rtsp_conn_info *conn, rtsp_message *req,
|
|
rtsp_message *resp) {
|
|
// debug(1, "Connection %d: GET_PARAMETER", conn->connection_number);
|
|
// debug_print_msg_headers(1,req);
|
|
// debug_print_msg_content(1,req);
|
|
|
|
if ((req->content) && (req->contentlength == strlen("volume\r\n")) &&
|
|
strstr(req->content, "volume") == req->content) {
|
|
debug(2, "Connection %d: current volume (%.6f) requested", conn->connection_number,
|
|
suggested_volume(conn));
|
|
|
|
char *p = malloc(128); // will be automatically deallocated with the response is deleted
|
|
if (p) {
|
|
resp->content = p;
|
|
resp->contentlength = snprintf(p, 128, "\r\nvolume: %.6f\r\n", suggested_volume(conn));
|
|
} else {
|
|
debug(1, "Couldn't allocate space for a response.");
|
|
}
|
|
}
|
|
resp->respcode = 200;
|
|
}
|
|
|
|
static void handle_set_parameter(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug(4, "Connection %d: SET_PARAMETER", conn->connection_number);
|
|
// if (!req->contentlength)
|
|
// debug(1, "received empty SET_PARAMETER request.");
|
|
|
|
// debug_print_msg_headers(1,req);
|
|
|
|
char *ct = msg_get_header(req, "Content-Type");
|
|
|
|
if (ct) {
|
|
// debug(2, "SET_PARAMETER Content-Type:\"%s\".", ct);
|
|
|
|
#ifdef CONFIG_METADATA
|
|
// It seems that the rtptime of the message is used as a kind of an ID that
|
|
// can be used
|
|
// to link items of metadata, including pictures, that refer to the same
|
|
// entity.
|
|
// If they refer to the same item, they have the same rtptime.
|
|
// So we send the rtptime before and after both the metadata items and the
|
|
// picture item
|
|
// get the rtptime
|
|
char *p = NULL;
|
|
char *hdr = msg_get_header(req, "RTP-Info");
|
|
|
|
if (hdr) {
|
|
p = strstr(hdr, "rtptime=");
|
|
if (p) {
|
|
p = strchr(p, '=');
|
|
}
|
|
}
|
|
|
|
// not all items have RTP-time stuff in them, which is okay
|
|
|
|
if (!strncmp(ct, "application/x-dmap-tagged", 25)) {
|
|
debug(4, "received metadata tags in SET_PARAMETER request.");
|
|
if (p == NULL)
|
|
debug(1, "Missing RTP-Time info for metadata");
|
|
if (p)
|
|
send_metadata('ssnc', 'mdst', p + 1, strlen(p + 1), req, 1); // metadata starting
|
|
else
|
|
send_metadata('ssnc', 'mdst', NULL, 0, NULL,
|
|
0); // metadata starting, if rtptime is not available
|
|
|
|
handle_set_parameter_metadata(conn, req, resp);
|
|
|
|
if (p)
|
|
send_metadata('ssnc', 'mden', p + 1, strlen(p + 1), req, 1); // metadata ending
|
|
else
|
|
send_metadata('ssnc', 'mden', NULL, 0, NULL,
|
|
0); // metadata starting, if rtptime is not available
|
|
} else if (!strncmp(ct, "image", 5)) {
|
|
// Some server simply ignore the md field from the TXT record. If The
|
|
// config says 'please, do not include any cover art', we are polite and
|
|
// do not write them to the pipe.
|
|
if (config.get_coverart) {
|
|
// debug(1, "received image in SET_PARAMETER request.");
|
|
// note: the image/type tag isn't reliable, so it's not being sent
|
|
// -- best look at the first few bytes of the image
|
|
if (p == NULL)
|
|
debug(1, "Missing RTP-Time info for picture item");
|
|
if (p)
|
|
send_metadata('ssnc', 'pcst', p + 1, strlen(p + 1), req, 1); // picture starting
|
|
else
|
|
send_metadata('ssnc', 'pcst', NULL, 0, NULL,
|
|
0); // picture starting, if rtptime is not available
|
|
|
|
send_metadata('ssnc', 'PICT', req->content, req->contentlength, req, 1);
|
|
|
|
if (p)
|
|
send_metadata('ssnc', 'pcen', p + 1, strlen(p + 1), req, 1); // picture ending
|
|
else
|
|
send_metadata('ssnc', 'pcen', NULL, 0, NULL,
|
|
0); // picture ending, if rtptime is not available
|
|
} else {
|
|
debug(1, "Ignore received picture item (include_cover_art = no).");
|
|
}
|
|
} else
|
|
#endif
|
|
if (!strncmp(ct, "text/parameters", 15)) {
|
|
debug(3, "received parameters in SET_PARAMETER request.");
|
|
handle_set_parameter_parameter(conn, req, resp); // this could be volume or progress
|
|
} else {
|
|
debug(1, "Connection %d: received unknown Content-Type \"%s\" in SET_PARAMETER request.",
|
|
conn->connection_number, ct);
|
|
debug_print_msg_headers(1, req);
|
|
}
|
|
} else {
|
|
debug(1, "Connection %d: missing Content-Type header in SET_PARAMETER request.",
|
|
conn->connection_number);
|
|
}
|
|
resp->respcode = 200;
|
|
}
|
|
|
|
static void handle_announce(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp) {
|
|
debug(2, "Connection %d: ANNOUNCE", conn->connection_number);
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
conn->airplay_stream_category = classic_airplay_stream; // already set in Classic AirPlay build
|
|
play_lock_r get_play_status = get_play_lock(
|
|
conn, 1); // always allow interruption in the Classic-AirPlay-in-AirPlay-2 mode (?)
|
|
#else
|
|
play_lock_r get_play_status = get_play_lock(conn, config.allow_session_interruption);
|
|
#endif
|
|
if (get_play_status != play_lock_aquisition_failed) {
|
|
|
|
// this has already been checked for in Classic Airplay and would be play_lock_already_acquired
|
|
// here. if this new session did not break in, then it's okay to reset the next UDP ports to the
|
|
// start of the range
|
|
if (get_play_status ==
|
|
play_lock_acquired_without_breaking_in) { // if it's safe to re-use original UDP ports
|
|
resetFreeUDPPort();
|
|
}
|
|
|
|
/*
|
|
{
|
|
char *cp = req->content;
|
|
int cp_left = req->contentlength;
|
|
while (cp_left > 1) {
|
|
if (strlen(cp) != 0)
|
|
debug(1,">>>>>> %s", cp);
|
|
cp += strlen(cp) + 1;
|
|
cp_left -= strlen(cp) + 1;
|
|
}
|
|
}
|
|
*/
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
// In AirPlay 2, an ANNOUNCE signifies the start of an AirPlay 1 session.
|
|
debug(1, "Connection %d: %s connection from %s:%u to self at %s:%u.", conn->connection_number,
|
|
get_category_string(conn->airplay_stream_category), conn->client_ip_string,
|
|
conn->client_rtsp_port, conn->self_ip_string, conn->self_rtsp_port);
|
|
conn->airplay_type = ap_1;
|
|
conn->timing_type = ts_ntp;
|
|
conn->type = 96; // this is the AirPlay 2 code for Realtime Audio -- not sure it's right
|
|
#endif
|
|
conn->stream.type = ast_unknown;
|
|
resp->respcode = 200; // presumed OK
|
|
char *pssid = NULL;
|
|
char *paesiv = NULL;
|
|
char *prsaaeskey = NULL;
|
|
char *pfmtp = NULL;
|
|
char *pminlatency = NULL;
|
|
char *pmaxlatency = NULL;
|
|
// char *pAudioMediaInfo = NULL;
|
|
char *pUncompressedCDAudio = NULL;
|
|
char *cp = req->content;
|
|
int cp_left = req->contentlength;
|
|
char *next;
|
|
while (cp_left && cp) {
|
|
next = nextline(cp, cp_left);
|
|
cp_left -= next - cp;
|
|
|
|
if (!strncmp(cp, "a=rtpmap:96 L16/44100/2", strlen("a=rtpmap:96 L16/44100/2")))
|
|
pUncompressedCDAudio = cp + strlen("a=rtpmap:96 L16/44100/2");
|
|
|
|
// if (!strncmp(cp, "m=audio", strlen("m=audio")))
|
|
// pAudioMediaInfo = cp + strlen("m=audio");
|
|
|
|
if (!strncmp(cp, "o=iTunes", strlen("o=iTunes")))
|
|
pssid = cp + strlen("o=iTunes");
|
|
|
|
if (!strncmp(cp, "a=fmtp:", strlen("a=fmtp:")))
|
|
pfmtp = cp + strlen("a=fmtp:");
|
|
|
|
if (!strncmp(cp, "a=aesiv:", strlen("a=aesiv:")))
|
|
paesiv = cp + strlen("a=aesiv:");
|
|
|
|
if (!strncmp(cp, "a=rsaaeskey:", strlen("a=rsaaeskey:")))
|
|
prsaaeskey = cp + strlen("a=rsaaeskey:");
|
|
|
|
if (!strncmp(cp, "a=min-latency:", strlen("a=min-latency:")))
|
|
pminlatency = cp + strlen("a=min-latency:");
|
|
|
|
if (!strncmp(cp, "a=max-latency:", strlen("a=max-latency:")))
|
|
pmaxlatency = cp + strlen("a=max-latency:");
|
|
|
|
cp = next;
|
|
}
|
|
|
|
if (pUncompressedCDAudio) {
|
|
debug(2, "An uncompressed PCM stream has been detected.");
|
|
conn->stream.type = ast_uncompressed;
|
|
conn->frames_per_packet = 352; // number of audio frames per packet.
|
|
debug(2, "Set conn->input_rate: 44100");
|
|
conn->input_rate = 44100;
|
|
conn->input_num_channels = 2;
|
|
conn->input_bit_depth = 16;
|
|
conn->input_bytes_per_frame = conn->input_num_channels * ((conn->input_bit_depth + 7) / 8);
|
|
|
|
/*
|
|
int y = strlen(pAudioMediaInfo);
|
|
if (y > 0) {
|
|
char obf[4096];
|
|
if (y > 4096)
|
|
y = 4096;
|
|
char *p = pAudioMediaInfo;
|
|
char *obfp = obf;
|
|
int obfc;
|
|
for (obfc = 0; obfc < y; obfc++) {
|
|
snprintf(obfp, 3, "%02X", (unsigned int)*p);
|
|
p++;
|
|
obfp += 2;
|
|
};
|
|
*obfp = 0;
|
|
debug(1, "AudioMediaInfo: \"%s\".", obf);
|
|
}
|
|
*/
|
|
}
|
|
|
|
if (pssid) {
|
|
uint32_t ssid = uatoi(pssid);
|
|
debug(3, "Synchronisation Source Identifier: %08X,%u", ssid, ssid);
|
|
}
|
|
|
|
if (pminlatency) {
|
|
conn->minimum_latency = atoi(pminlatency);
|
|
debug(3, "Minimum latency %d specified", conn->minimum_latency);
|
|
}
|
|
|
|
if (pmaxlatency) {
|
|
conn->maximum_latency = atoi(pmaxlatency);
|
|
debug(3, "Maximum latency %d specified", conn->maximum_latency);
|
|
}
|
|
|
|
if ((paesiv == NULL) && (prsaaeskey == NULL)) {
|
|
// debug(1,"Unencrypted session requested?");
|
|
conn->stream.encrypted = 0;
|
|
} else if ((paesiv != NULL) && (prsaaeskey != NULL)) {
|
|
conn->stream.encrypted = 1;
|
|
// debug(1,"Encrypted session requested");
|
|
} else {
|
|
warn("Invalid Announce message -- missing paesiv or prsaaeskey.");
|
|
resp->respcode = 456; // 456 - Header Field Not Valid for Resource
|
|
// goto out;
|
|
}
|
|
if (conn->stream.encrypted) {
|
|
int len, keylen;
|
|
uint8_t *aesiv = base64_dec(paesiv, &len);
|
|
if (len == 16) {
|
|
memcpy(conn->stream.aesiv, aesiv, 16);
|
|
} else {
|
|
resp->respcode = 456; // 456 - Header Field Not Valid for Resource
|
|
warn("client announced aeskey of %d bytes, wanted 16", len);
|
|
}
|
|
free(aesiv);
|
|
|
|
uint8_t *rsaaeskey = base64_dec(prsaaeskey, &len);
|
|
uint8_t *aeskey = rsa_apply(rsaaeskey, len, &keylen, RSA_MODE_KEY);
|
|
free(rsaaeskey);
|
|
if (keylen == 16) {
|
|
memcpy(conn->stream.aeskey, aeskey, 16);
|
|
} else {
|
|
resp->respcode = 456; // 456 - Header Field Not Valid for Resource
|
|
warn("client announced rsaaeskey of %d bytes, wanted 16", keylen);
|
|
}
|
|
free(aeskey);
|
|
}
|
|
|
|
if (pfmtp) {
|
|
conn->stream.type = ast_apple_lossless;
|
|
debug(3, "An ALAC stream has been detected.");
|
|
|
|
// Set reasonable connection defaults
|
|
conn->stream.fmtp[0] = 96;
|
|
conn->stream.fmtp[1] = 352;
|
|
conn->stream.fmtp[2] = 0;
|
|
conn->stream.fmtp[3] = 16;
|
|
conn->stream.fmtp[4] = 40;
|
|
conn->stream.fmtp[5] = 10;
|
|
conn->stream.fmtp[6] = 14;
|
|
conn->stream.fmtp[7] = 2;
|
|
conn->stream.fmtp[8] = 255;
|
|
conn->stream.fmtp[9] = 0;
|
|
conn->stream.fmtp[10] = 0;
|
|
conn->stream.fmtp[11] = 44100;
|
|
|
|
unsigned int i = 0;
|
|
unsigned int max_param = sizeof(conn->stream.fmtp) / sizeof(conn->stream.fmtp[0]);
|
|
char *found;
|
|
while ((found = strsep(&pfmtp, " \t")) != NULL && i < max_param) {
|
|
conn->stream.fmtp[i++] = atoi(found);
|
|
}
|
|
// here we should check the sanity of the fmtp values
|
|
// for (i = 0; i < sizeof(conn->stream.fmtp) / sizeof(conn->stream.fmtp[0]); i++)
|
|
// debug(1," fmtp[%2d] is: %10d",i,conn->stream.fmtp[i]);
|
|
|
|
// set the parameters of the player (as distinct from the parameters of the decoder -- that's
|
|
// done later).
|
|
conn->frames_per_packet = conn->stream.fmtp[1]; // number of audio frames per packet.
|
|
conn->input_rate = conn->stream.fmtp[11];
|
|
debug(2, "Set conn->input_rate: %u.", conn->input_rate);
|
|
conn->input_num_channels = conn->stream.fmtp[7];
|
|
conn->input_bit_depth = conn->stream.fmtp[3];
|
|
conn->input_bytes_per_frame = conn->input_num_channels * ((conn->input_bit_depth + 7) / 8);
|
|
}
|
|
|
|
if ((resp->respcode == 200) && (conn->stream.type != ast_unknown)) {
|
|
char *hdr = msg_get_header(req, "X-Apple-Client-Name");
|
|
if (hdr) {
|
|
debug(1, "Play connection from device named \"%s\" on RTSP conversation thread %d.", hdr,
|
|
conn->connection_number);
|
|
#ifdef CONFIG_METADATA
|
|
send_metadata('ssnc', 'snam', hdr, strlen(hdr), req, 1);
|
|
#endif
|
|
}
|
|
hdr = msg_get_header(req, "User-Agent");
|
|
if (hdr) {
|
|
conn->UserAgent = strdup(hdr);
|
|
debug(2, "Play connection from user agent \"%s\" on RTSP conversation thread %d.", hdr,
|
|
conn->connection_number);
|
|
// if the user agent is AirPlay and has a version number of 353 or less (from iOS 11.1,2)
|
|
// use the older way of calculating the latency
|
|
|
|
char *p = strstr(hdr, "AirPlay");
|
|
if (p) {
|
|
p = strchr(p, '/');
|
|
if (p) {
|
|
conn->AirPlayVersion = atoi(p + 1);
|
|
debug(2, "AirPlay version %d detected.", conn->AirPlayVersion);
|
|
}
|
|
}
|
|
conn->input_format_is_valid = 1;
|
|
#ifdef CONFIG_METADATA
|
|
send_metadata('ssnc', 'snua', hdr, strlen(hdr), req, 1);
|
|
#endif
|
|
}
|
|
} else {
|
|
warn("Can not process the following ANNOUNCE message:");
|
|
// print each line of the request content
|
|
// the problem is that nextline has replace all returns, newlines, etc. by
|
|
// NULLs
|
|
char *lcp = req->content;
|
|
int lcp_left = req->contentlength;
|
|
while (lcp_left > 1) {
|
|
if (strlen(lcp) != 0)
|
|
warn(" %s", lcp);
|
|
lcp += strlen(lcp) + 1;
|
|
lcp_left -= strlen(lcp) + 1;
|
|
}
|
|
}
|
|
debug(2, "Connection %d: ANNOUNCE has completed.", conn->connection_number);
|
|
} else {
|
|
// can't get the principal_conn
|
|
resp->respcode = 453;
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
static struct method_handler {
|
|
char *method;
|
|
void (*ap1_handler)(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp); // for AirPlay 1
|
|
void (*ap2_handler)(rtsp_conn_info *conn, rtsp_message *req, rtsp_message *resp); // for AirPlay 2
|
|
} method_handlers[] = {{"OPTIONS", handle_options, handle_options_2},
|
|
{"ANNOUNCE", handle_announce, handle_announce},
|
|
{"FLUSH", handle_flush, handle_flush},
|
|
{"TEARDOWN", handle_teardown, handle_teardown_2},
|
|
{"SETUP", handle_setup, handle_setup_2},
|
|
{"GET_PARAMETER", handle_get_parameter, handle_get_parameter},
|
|
{"SET_PARAMETER", handle_set_parameter, handle_set_parameter},
|
|
{"RECORD", handle_record, handle_record_2},
|
|
{"GET", handle_get, handle_get},
|
|
{"POST", handle_post, handle_post},
|
|
{"SETPEERS", handle_unimplemented_ap1, handle_setpeers},
|
|
{"SETPEERSX", handle_unimplemented_ap1, handle_setpeersx},
|
|
{"SETRATEANCHORTI", handle_unimplemented_ap1, handle_setrateanchori},
|
|
{"FLUSHBUFFERED", handle_unimplemented_ap1, handle_flushbuffered},
|
|
{"SETRATE", handle_unimplemented_ap1, handle_setrate},
|
|
{NULL, NULL, NULL}};
|
|
#else
|
|
static struct method_handler {
|
|
char *method;
|
|
void (*handler)(rtsp_conn_info *conn, rtsp_message *req,
|
|
rtsp_message *resp); // for AirPlay 1 only
|
|
} method_handlers[] = {{"OPTIONS", handle_options},
|
|
{"GET", handle_get},
|
|
{"POST", handle_post},
|
|
{"ANNOUNCE", handle_announce},
|
|
{"FLUSH", handle_flush},
|
|
{"TEARDOWN", handle_teardown},
|
|
{"SETUP", handle_setup},
|
|
{"GET_PARAMETER", handle_get_parameter},
|
|
{"SET_PARAMETER", handle_set_parameter},
|
|
{"RECORD", handle_record},
|
|
{NULL, NULL}};
|
|
#endif
|
|
|
|
static void apple_challenge(int lfd, rtsp_message *req, rtsp_message *resp) {
|
|
char *hdr = msg_get_header(req, "Apple-Challenge");
|
|
if (!hdr)
|
|
return;
|
|
SOCKADDR fdsa;
|
|
socklen_t sa_len = sizeof(fdsa);
|
|
getsockname(lfd, (struct sockaddr *)&fdsa, &sa_len);
|
|
|
|
int chall_len;
|
|
uint8_t *chall = base64_dec(hdr, &chall_len);
|
|
if (chall == NULL)
|
|
die("null chall in apple_challenge");
|
|
uint8_t buf[48], *bp = buf;
|
|
int i;
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
if (chall_len > 16) {
|
|
warn("oversized Apple-Challenge!");
|
|
free(chall);
|
|
return;
|
|
}
|
|
memcpy(bp, chall, chall_len);
|
|
free(chall);
|
|
bp += chall_len;
|
|
|
|
#ifdef AF_INET6
|
|
if (fdsa.SAFAMILY == AF_INET6) {
|
|
struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)(&fdsa);
|
|
memcpy(bp, sa6->sin6_addr.s6_addr, 16);
|
|
bp += 16;
|
|
} else
|
|
#endif
|
|
{
|
|
struct sockaddr_in *sa = (struct sockaddr_in *)(&fdsa);
|
|
memcpy(bp, &sa->sin_addr.s_addr, 4);
|
|
bp += 4;
|
|
}
|
|
|
|
for (i = 0; i < 6; i++)
|
|
*bp++ = config.ap1_prefix[i];
|
|
|
|
int buflen, resplen;
|
|
buflen = bp - buf;
|
|
if (buflen < 0x20)
|
|
buflen = 0x20;
|
|
|
|
uint8_t *challresp = rsa_apply(buf, buflen, &resplen, RSA_MODE_AUTH);
|
|
char *encoded = base64_enc(challresp, resplen);
|
|
if (encoded == NULL)
|
|
die("could not allocate memory for \"encoded\"");
|
|
// strip the padding.
|
|
char *padding = strchr(encoded, '=');
|
|
if (padding)
|
|
*padding = 0;
|
|
|
|
msg_add_header(resp, "Apple-Response", encoded); // will be freed when the response is freed.
|
|
free(challresp);
|
|
free(encoded);
|
|
}
|
|
|
|
static char *make_nonce(void) {
|
|
uint8_t random[8];
|
|
int lfd = open("/dev/urandom", O_RDONLY);
|
|
if (lfd < 0)
|
|
die("could not open /dev/urandom!");
|
|
// int ignore =
|
|
if (read(lfd, random, sizeof(random)) != sizeof(random))
|
|
debug(1, "Error reading /dev/urandom");
|
|
safe_socket_close(&lfd);
|
|
return base64_enc(random, 8); // returns a pointer to malloc'ed memory
|
|
}
|
|
|
|
static int rtsp_classic_airplay_auth(char **nonce, rtsp_message *req, rtsp_message *resp) {
|
|
|
|
if (!config.password)
|
|
return 0;
|
|
if (!*nonce) {
|
|
*nonce = make_nonce();
|
|
goto authenticate;
|
|
}
|
|
|
|
char *hdr = msg_get_header(req, "Authorization");
|
|
if (!hdr || strncmp(hdr, "Digest ", 7))
|
|
goto authenticate;
|
|
|
|
char *realm = strstr(hdr, "realm=\"");
|
|
char *username = strstr(hdr, "username=\"");
|
|
char *response = strstr(hdr, "response=\"");
|
|
char *uri = strstr(hdr, "uri=\"");
|
|
|
|
if (!realm || !username || !response || !uri)
|
|
goto authenticate;
|
|
|
|
char *quote;
|
|
realm = strchr(realm, '"') + 1;
|
|
if (!(quote = strchr(realm, '"')))
|
|
goto authenticate;
|
|
*quote = 0;
|
|
username = strchr(username, '"') + 1;
|
|
if (!(quote = strchr(username, '"')))
|
|
goto authenticate;
|
|
*quote = 0;
|
|
response = strchr(response, '"') + 1;
|
|
if (!(quote = strchr(response, '"')))
|
|
goto authenticate;
|
|
*quote = 0;
|
|
uri = strchr(uri, '"') + 1;
|
|
if (!(quote = strchr(uri, '"')))
|
|
goto authenticate;
|
|
*quote = 0;
|
|
|
|
uint8_t digest_urp[16], digest_mu[16], digest_total[16];
|
|
|
|
#ifdef CONFIG_OPENSSL
|
|
EVP_MD_CTX *ctx;
|
|
unsigned int digest_urp_len = EVP_MD_size(EVP_md5());
|
|
unsigned int digest_mu_len = EVP_MD_size(EVP_md5());
|
|
int oldState;
|
|
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &oldState);
|
|
ctx = EVP_MD_CTX_new();
|
|
EVP_DigestInit_ex(ctx, EVP_md5(), NULL);
|
|
|
|
EVP_DigestUpdate(ctx, username, strlen(username));
|
|
EVP_DigestUpdate(ctx, ":", 1);
|
|
EVP_DigestUpdate(ctx, realm, strlen(realm));
|
|
EVP_DigestUpdate(ctx, ":", 1);
|
|
EVP_DigestUpdate(ctx, config.password, strlen(config.password));
|
|
EVP_DigestFinal_ex(ctx, digest_urp, &digest_urp_len);
|
|
EVP_MD_CTX_free(ctx);
|
|
|
|
ctx = EVP_MD_CTX_new();
|
|
EVP_DigestInit_ex(ctx, EVP_md5(), NULL);
|
|
|
|
EVP_DigestUpdate(ctx, req->method, strlen(req->method));
|
|
EVP_DigestUpdate(ctx, ":", 1);
|
|
EVP_DigestUpdate(ctx, uri, strlen(uri));
|
|
|
|
EVP_DigestFinal_ex(ctx, digest_mu, &digest_mu_len);
|
|
EVP_MD_CTX_free(ctx);
|
|
pthread_setcancelstate(oldState, NULL);
|
|
#endif
|
|
|
|
#ifdef CONFIG_MBEDTLS
|
|
#if MBEDTLS_VERSION_MINOR >= 7
|
|
mbedtls_md5_context tctx;
|
|
mbedtls_md5_starts_ret(&tctx);
|
|
mbedtls_md5_update_ret(&tctx, (const unsigned char *)username, strlen(username));
|
|
mbedtls_md5_update_ret(&tctx, (unsigned char *)":", 1);
|
|
mbedtls_md5_update_ret(&tctx, (const unsigned char *)realm, strlen(realm));
|
|
mbedtls_md5_update_ret(&tctx, (unsigned char *)":", 1);
|
|
mbedtls_md5_update_ret(&tctx, (const unsigned char *)config.password, strlen(config.password));
|
|
mbedtls_md5_finish_ret(&tctx, digest_urp);
|
|
mbedtls_md5_starts_ret(&tctx);
|
|
mbedtls_md5_update_ret(&tctx, (const unsigned char *)req->method, strlen(req->method));
|
|
mbedtls_md5_update_ret(&tctx, (unsigned char *)":", 1);
|
|
mbedtls_md5_update_ret(&tctx, (const unsigned char *)uri, strlen(uri));
|
|
mbedtls_md5_finish_ret(&tctx, digest_mu);
|
|
#else
|
|
mbedtls_md5_context tctx;
|
|
mbedtls_md5_starts(&tctx);
|
|
mbedtls_md5_update(&tctx, (const unsigned char *)username, strlen(username));
|
|
mbedtls_md5_update(&tctx, (unsigned char *)":", 1);
|
|
mbedtls_md5_update(&tctx, (const unsigned char *)realm, strlen(realm));
|
|
mbedtls_md5_update(&tctx, (unsigned char *)":", 1);
|
|
mbedtls_md5_update(&tctx, (const unsigned char *)config.password, strlen(config.password));
|
|
mbedtls_md5_finish(&tctx, digest_urp);
|
|
mbedtls_md5_starts(&tctx);
|
|
mbedtls_md5_update(&tctx, (const unsigned char *)req->method, strlen(req->method));
|
|
mbedtls_md5_update(&tctx, (unsigned char *)":", 1);
|
|
mbedtls_md5_update(&tctx, (const unsigned char *)uri, strlen(uri));
|
|
mbedtls_md5_finish(&tctx, digest_mu);
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_POLARSSL
|
|
md5_context tctx;
|
|
md5_starts(&tctx);
|
|
md5_update(&tctx, (const unsigned char *)username, strlen(username));
|
|
md5_update(&tctx, (unsigned char *)":", 1);
|
|
md5_update(&tctx, (const unsigned char *)realm, strlen(realm));
|
|
md5_update(&tctx, (unsigned char *)":", 1);
|
|
md5_update(&tctx, (const unsigned char *)config.password, strlen(config.password));
|
|
md5_finish(&tctx, digest_urp);
|
|
md5_starts(&tctx);
|
|
md5_update(&tctx, (const unsigned char *)req->method, strlen(req->method));
|
|
md5_update(&tctx, (unsigned char *)":", 1);
|
|
md5_update(&tctx, (const unsigned char *)uri, strlen(uri));
|
|
md5_finish(&tctx, digest_mu);
|
|
#endif
|
|
|
|
int i;
|
|
unsigned char buf[33];
|
|
for (i = 0; i < 16; i++)
|
|
snprintf((char *)buf + 2 * i, 3, "%02x", digest_urp[i]);
|
|
|
|
#ifdef CONFIG_OPENSSL
|
|
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &oldState);
|
|
unsigned int digest_total_len = EVP_MD_size(EVP_md5());
|
|
|
|
ctx = EVP_MD_CTX_new();
|
|
EVP_DigestInit_ex(ctx, EVP_md5(), NULL);
|
|
|
|
EVP_DigestUpdate(ctx, buf, 32);
|
|
EVP_DigestUpdate(ctx, ":", 1);
|
|
EVP_DigestUpdate(ctx, *nonce, strlen(*nonce));
|
|
EVP_DigestUpdate(ctx, ":", 1);
|
|
for (i = 0; i < 16; i++)
|
|
snprintf((char *)buf + 2 * i, 3, "%02x", digest_mu[i]);
|
|
EVP_DigestUpdate(ctx, buf, 32);
|
|
EVP_DigestFinal_ex(ctx, digest_total, &digest_total_len);
|
|
EVP_MD_CTX_free(ctx);
|
|
pthread_setcancelstate(oldState, NULL);
|
|
#endif
|
|
|
|
#ifdef CONFIG_MBEDTLS
|
|
#if MBEDTLS_VERSION_MINOR >= 7
|
|
mbedtls_md5_starts_ret(&tctx);
|
|
mbedtls_md5_update_ret(&tctx, buf, 32);
|
|
mbedtls_md5_update_ret(&tctx, (unsigned char *)":", 1);
|
|
mbedtls_md5_update_ret(&tctx, (const unsigned char *)*nonce, strlen(*nonce));
|
|
mbedtls_md5_update_ret(&tctx, (unsigned char *)":", 1);
|
|
for (i = 0; i < 16; i++)
|
|
snprintf((char *)buf + 2 * i, 3, "%02x", digest_mu[i]);
|
|
mbedtls_md5_update_ret(&tctx, buf, 32);
|
|
mbedtls_md5_finish_ret(&tctx, digest_total);
|
|
#else
|
|
mbedtls_md5_starts(&tctx);
|
|
mbedtls_md5_update(&tctx, buf, 32);
|
|
mbedtls_md5_update(&tctx, (unsigned char *)":", 1);
|
|
mbedtls_md5_update(&tctx, (const unsigned char *)*nonce, strlen(*nonce));
|
|
mbedtls_md5_update(&tctx, (unsigned char *)":", 1);
|
|
for (i = 0; i < 16; i++)
|
|
snprintf((char *)buf + 2 * i, 3, "%02x", digest_mu[i]);
|
|
mbedtls_md5_update(&tctx, buf, 32);
|
|
mbedtls_md5_finish(&tctx, digest_total);
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_POLARSSL
|
|
md5_starts(&tctx);
|
|
md5_update(&tctx, buf, 32);
|
|
md5_update(&tctx, (unsigned char *)":", 1);
|
|
md5_update(&tctx, (const unsigned char *)*nonce, strlen(*nonce));
|
|
md5_update(&tctx, (unsigned char *)":", 1);
|
|
for (i = 0; i < 16; i++)
|
|
snprintf((char *)buf + 2 * i, 3, "%02x", digest_mu[i]);
|
|
md5_update(&tctx, buf, 32);
|
|
md5_finish(&tctx, digest_total);
|
|
#endif
|
|
|
|
for (i = 0; i < 16; i++)
|
|
snprintf((char *)buf + 2 * i, 3, "%02x", digest_total[i]);
|
|
|
|
if (!strcmp(response, (const char *)buf))
|
|
return 0;
|
|
warn("Password authorization failed.");
|
|
|
|
authenticate:
|
|
resp->respcode = 401;
|
|
int hdrlen = strlen(*nonce) + 40;
|
|
char *authhdr = malloc(hdrlen);
|
|
snprintf(authhdr, hdrlen, "Digest realm=\"raop\", nonce=\"%s\"", *nonce);
|
|
msg_add_header(resp, "WWW-Authenticate", authhdr);
|
|
free(authhdr);
|
|
return 1;
|
|
}
|
|
|
|
void rtsp_conversation_thread_cleanup_function(void *arg) {
|
|
rtsp_conn_info *conn = (rtsp_conn_info *)arg;
|
|
if (conn != NULL) {
|
|
int oldState;
|
|
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &oldState);
|
|
debug(3, "Connection %d: %s rtsp_conversation_thread_func_cleanup_function called.",
|
|
conn->connection_number, get_category_string(conn->airplay_stream_category));
|
|
|
|
if (conn->player_thread) {
|
|
player_stop(conn); // this nulls the player_thread and cancels the threads...
|
|
activity_monitor_signify_activity(0); // inactive, and should be after command_stop()
|
|
}
|
|
|
|
if (conn->fd > 0) {
|
|
debug(
|
|
2,
|
|
"Connection %d: terminating -- closing RTSP connection socket %d: from %s:%u to self at "
|
|
"%s:%u.",
|
|
conn->connection_number, conn->fd, conn->client_ip_string, conn->client_rtsp_port,
|
|
conn->self_ip_string, conn->self_rtsp_port);
|
|
safe_socket_close(&conn->fd);
|
|
}
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
if (conn->session_key) {
|
|
free(conn->session_key);
|
|
conn->session_key = NULL;
|
|
}
|
|
|
|
// give the event receiver a chance to exit normally, if it exists
|
|
if (conn->rtp_event_thread != NULL) {
|
|
pthread_cancel(*conn->rtp_event_thread);
|
|
pthread_join(*conn->rtp_event_thread, NULL);
|
|
free(conn->rtp_event_thread);
|
|
conn->rtp_event_thread = NULL;
|
|
}
|
|
conn->ap2_event_receiver_exited = 0;
|
|
debug(3, "Connection %d: %s event thread deleted.", conn->connection_number,
|
|
get_category_string(conn->airplay_stream_category));
|
|
#endif
|
|
|
|
debug(3, "Connection %d: terminating -- closing timing, control and audio sockets...",
|
|
conn->connection_number);
|
|
if (conn->control_socket) {
|
|
debug(3, "Connection %d: terminating -- closing control_socket %d.", conn->connection_number,
|
|
conn->control_socket);
|
|
safe_socket_close(&conn->control_socket);
|
|
}
|
|
if (conn->timing_socket) {
|
|
debug(3, "Connection %d: terminating -- closing timing_socket %d.", conn->connection_number,
|
|
conn->timing_socket);
|
|
safe_socket_close(&conn->timing_socket);
|
|
}
|
|
if (conn->audio_socket) {
|
|
debug(3, "Connection %d: terminating -- closing audio_socket %d.", conn->connection_number,
|
|
conn->audio_socket);
|
|
safe_socket_close(&conn->audio_socket);
|
|
}
|
|
if (conn->auth_nonce) {
|
|
free(conn->auth_nonce);
|
|
conn->auth_nonce = NULL;
|
|
}
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
buf_drain(&conn->ap2_pairing_context.control_cipher_bundle.plaintext_read_buffer, -1);
|
|
buf_drain(&conn->ap2_pairing_context.control_cipher_bundle.encrypted_read_buffer, -1);
|
|
if (conn->ap2_pairing_context.control_cipher_bundle.description != NULL)
|
|
free(conn->ap2_pairing_context.control_cipher_bundle.description);
|
|
pair_cipher_free(conn->ap2_pairing_context.control_cipher_bundle.cipher_ctx);
|
|
|
|
buf_drain(&conn->ap2_pairing_context.event_cipher_bundle.plaintext_read_buffer, -1);
|
|
buf_drain(&conn->ap2_pairing_context.event_cipher_bundle.encrypted_read_buffer, -1);
|
|
if (conn->ap2_pairing_context.event_cipher_bundle.description != NULL)
|
|
free(conn->ap2_pairing_context.event_cipher_bundle.description);
|
|
pair_cipher_free(conn->ap2_pairing_context.event_cipher_bundle.cipher_ctx);
|
|
|
|
buf_drain(&conn->ap2_pairing_context.data_cipher_bundle.plaintext_read_buffer, -1);
|
|
buf_drain(&conn->ap2_pairing_context.data_cipher_bundle.encrypted_read_buffer, -1);
|
|
if (conn->ap2_pairing_context.data_cipher_bundle.description != NULL)
|
|
free(conn->ap2_pairing_context.data_cipher_bundle.description);
|
|
pair_cipher_free(conn->ap2_pairing_context.data_cipher_bundle.cipher_ctx);
|
|
|
|
pair_setup_free(conn->ap2_pairing_context.setup_ctx);
|
|
pair_verify_free(conn->ap2_pairing_context.verify_ctx);
|
|
if (conn->airplay_gid) {
|
|
free(conn->airplay_gid);
|
|
conn->airplay_gid = NULL;
|
|
}
|
|
#endif
|
|
|
|
rtp_terminate(conn);
|
|
|
|
if (conn->dacp_id) {
|
|
free(conn->dacp_id);
|
|
conn->dacp_id = NULL;
|
|
}
|
|
|
|
if (conn->UserAgent) {
|
|
free(conn->UserAgent);
|
|
conn->UserAgent = NULL;
|
|
}
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
if (conn->ap2_client_name) {
|
|
free(conn->ap2_client_name);
|
|
conn->ap2_client_name = NULL;
|
|
}
|
|
#endif
|
|
// remove flow control and mutexes
|
|
int rc = pthread_mutex_destroy(&conn->volume_control_mutex);
|
|
if (rc)
|
|
debug(1, "Connection %d: error %d destroying volume_control_mutex.", conn->connection_number,
|
|
rc);
|
|
rc = pthread_cond_destroy(&conn->flowcontrol);
|
|
if (rc)
|
|
debug(1, "Connection %d: error %d destroying flow control condition variable.",
|
|
conn->connection_number, rc);
|
|
rc = pthread_mutex_destroy(&conn->ab_mutex);
|
|
if (rc)
|
|
debug(1, "Connection %d: error %d destroying ab_mutex.", conn->connection_number, rc);
|
|
rc = pthread_mutex_destroy(&conn->flush_mutex);
|
|
if (rc)
|
|
debug(1, "Connection %d: error %d destroying flush_mutex.", conn->connection_number, rc);
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
rc = pthread_mutex_destroy(&conn->event_sender_mutex);
|
|
if (rc)
|
|
debug(1, "Connection %d: error %d destroying event_sender_mutex.", conn->connection_number,
|
|
rc);
|
|
#endif
|
|
debug(3, "Connection %d: Closed.", conn->connection_number);
|
|
conn->running = 0; // for the garbage collector
|
|
// release_play_lock(conn);
|
|
pthread_setcancelstate(oldState, NULL);
|
|
}
|
|
}
|
|
|
|
void msg_cleanup_function(void *arg) {
|
|
debug(4, "msg_cleanup_function called 0x%" PRIxPTR ".", (uintptr_t)arg);
|
|
msg_free((rtsp_message **)arg);
|
|
}
|
|
|
|
static void *rtsp_conversation_thread_func(void *pconn) {
|
|
// #include <syscall.h>
|
|
// debug(1, "rtsp_conversation_thread_func PID %d", syscall(SYS_gettid));
|
|
rtsp_conn_info *conn = pconn;
|
|
|
|
int rc = pthread_mutex_init(&conn->flush_mutex, NULL);
|
|
if (rc)
|
|
die("Connection %d: error %d initialising flush_mutex.", conn->connection_number, rc);
|
|
rc = pthread_mutex_init(&conn->ab_mutex, NULL);
|
|
if (rc)
|
|
die("Connection %d: error %d initialising ab_mutex.", conn->connection_number, rc);
|
|
rc = pthread_cond_init(&conn->flowcontrol, NULL);
|
|
if (rc)
|
|
die("Connection %d: error %d initialising flow control condition variable.",
|
|
conn->connection_number, rc);
|
|
rc = pthread_mutex_init(&conn->volume_control_mutex, NULL);
|
|
if (rc)
|
|
die("Connection %d: error %d initialising volume_control_mutex.", conn->connection_number, rc);
|
|
|
|
rc = pthread_mutex_init(&conn->player_create_delete_mutex, NULL);
|
|
if (rc)
|
|
die("Connection %d: error %d initialising player_create_delete_mutex.", conn->connection_number,
|
|
rc);
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
rc = pthread_mutex_init(&conn->event_sender_mutex, NULL);
|
|
if (rc)
|
|
die("Connection %d: error %d initialising event_sender_mutex.", conn->connection_number, rc);
|
|
#endif
|
|
|
|
// nothing before this is cancellable
|
|
pthread_cleanup_push(rtsp_conversation_thread_cleanup_function, (void *)conn);
|
|
|
|
rtp_initialise(conn);
|
|
char *hdr = NULL;
|
|
|
|
enum rtsp_read_request_response reply;
|
|
|
|
// int rtsp_read_request_attempt_count = 1; // 1 means exit immediately
|
|
rtsp_message *req = NULL, *resp = NULL;
|
|
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
conn->ap2_audio_buffer_size = 1024 * 1024 * 8;
|
|
#endif
|
|
|
|
while (conn->stop == 0) {
|
|
pthread_testcancel();
|
|
int debug_level = 4; // for printing the request and response
|
|
|
|
// check to see if a conn has been zeroed
|
|
|
|
pthread_mutex_lock(&conns_lock);
|
|
int i;
|
|
for (i = 0; i < nconns; i++) {
|
|
if ((conns[i] != NULL) && (conns[i]->connection_number == 0)) {
|
|
debug(1, "conns[%d] has a Connection Number of 0!", i);
|
|
}
|
|
}
|
|
pthread_mutex_unlock(&conns_lock);
|
|
|
|
reply = rtsp_read_request(conn, &req);
|
|
if (reply == rtsp_read_request_response_ok) {
|
|
pthread_cleanup_push(msg_cleanup_function, (void *)&req);
|
|
resp = msg_init();
|
|
pthread_cleanup_push(msg_cleanup_function, (void *)&resp);
|
|
resp->respcode = 501; // Not Implemented
|
|
int dl = debug_level;
|
|
// if ((strcmp(req->method, "OPTIONS") == 0) ||
|
|
// (strcmp(req->method, "POST") ==
|
|
// 0)) // the options message is very common, so don't log it until level 3
|
|
// dl = 3;
|
|
debug(dl,
|
|
"Connection %d: (%s) received an RTSP Packet of type \"%s\":", conn->connection_number,
|
|
get_category_string(conn->airplay_stream_category), req->method);
|
|
debug_log_rtsp_message(dl, NULL, req);
|
|
|
|
apple_challenge(conn->fd, req, resp);
|
|
hdr = msg_get_header(req, "CSeq");
|
|
if (hdr)
|
|
msg_add_header(resp, "CSeq", hdr);
|
|
// msg_add_header(resp, "Audio-Jack-Status", "connected; type=analog");
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
char server_string[128];
|
|
snprintf(server_string, sizeof(server_string), "AirTunes/%s", config.srcvers);
|
|
msg_add_header(resp, "Server", server_string);
|
|
#else
|
|
msg_add_header(resp, "Server", "AirTunes/105.1");
|
|
#endif
|
|
|
|
// we are only concerned with classic_airplay_authorized if we are running in classic AirPlay
|
|
// mode either because the build is for classic AirPlay only or, if the build is for AirPlay
|
|
// 2, we happen to be running in classic AirPlay compatibility mode
|
|
|
|
if ((conn->authorized == 1) ||
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
(conn->airplay_type != ap_1) ||
|
|
#endif
|
|
(rtsp_classic_airplay_auth(&conn->auth_nonce, req, resp) == 0)) {
|
|
conn->authorized = 1; // it must have been classic airplay and authorized or didn't need a
|
|
// password, or not classic AirPlay at all
|
|
struct method_handler *mh;
|
|
int method_selected = 0;
|
|
for (mh = method_handlers; mh->method; mh++) {
|
|
if (!strcmp(mh->method, req->method)) {
|
|
method_selected = 1;
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
if (conn->airplay_type == ap_1)
|
|
mh->ap1_handler(conn, req, resp);
|
|
else
|
|
mh->ap2_handler(conn, req, resp);
|
|
#else
|
|
mh->handler(conn, req, resp);
|
|
#endif
|
|
break;
|
|
}
|
|
}
|
|
if (method_selected == 0) {
|
|
debug(1,
|
|
"Connection %d: (%s) unrecognised and unhandled rtsp request \"%s\". HTTP Response "
|
|
"Code "
|
|
"%d returned.",
|
|
conn->connection_number, get_category_string(conn->airplay_stream_category),
|
|
req->method, resp->respcode);
|
|
debug_log_rtsp_message(dl, NULL, req);
|
|
|
|
int y = req->contentlength;
|
|
if (y > 0) {
|
|
char obf[4096];
|
|
if (y > 4096)
|
|
y = 4096;
|
|
char *p = req->content;
|
|
char *obfp = obf;
|
|
int obfc;
|
|
for (obfc = 0; obfc < y; obfc++) {
|
|
snprintf(obfp, 3, "%02X", (unsigned int)*p);
|
|
p++;
|
|
obfp += 2;
|
|
};
|
|
*obfp = 0;
|
|
debug(dl, "Content: \"%s\".", obf);
|
|
}
|
|
}
|
|
resp->respcode = 200; // OK
|
|
}
|
|
debug(dl, "Connection %d: (%s) RTSP response:", conn->connection_number,
|
|
get_category_string(conn->airplay_stream_category));
|
|
debug_log_rtsp_message(dl, NULL, resp);
|
|
// if (conn->stop == 0) {
|
|
int err = msg_write_response(conn, resp);
|
|
if (err) {
|
|
debug(1,
|
|
"Connection %d: Unable to write an RTSP message response. Terminating the "
|
|
"connection.",
|
|
conn->connection_number);
|
|
struct linger so_linger;
|
|
so_linger.l_onoff = 1; // "true"
|
|
so_linger.l_linger = 0;
|
|
err = setsockopt(conn->fd, SOL_SOCKET, SO_LINGER, &so_linger, sizeof so_linger);
|
|
if (err)
|
|
debug(1,
|
|
"Connection %d: Could not set the RTSP socket to abort due to a write error on "
|
|
"closing.",
|
|
conn->connection_number);
|
|
conn->stop = 1;
|
|
// if (debuglev >= 1)
|
|
// debuglev = 3; // see what happens next
|
|
}
|
|
// }
|
|
pthread_cleanup_pop(1);
|
|
pthread_cleanup_pop(1);
|
|
} else { // if the response is not rtsp_read_request_response_ok
|
|
conn->stop = 1;
|
|
if (reply == rtsp_read_request_response_read_error) {
|
|
debug(1, "bad packet received.");
|
|
struct linger so_linger;
|
|
so_linger.l_onoff = 1; // "true"
|
|
so_linger.l_linger = 0;
|
|
int err = setsockopt(conn->fd, SOL_SOCKET, SO_LINGER, &so_linger, sizeof so_linger);
|
|
if (err)
|
|
debug(1, "Could not set the RTSP socket to abort due to a read error on closing.");
|
|
} else if (reply == rtsp_read_request_response_bad_packet) {
|
|
conn->stop = 0; // don't stop for a bad packet
|
|
char *response_text = "RTSP/1.0 400 Bad Request\r\nServer: AirTunes/105.1\r\n\r\n";
|
|
ssize_t lreply = write(conn->fd, response_text, strlen(response_text));
|
|
if (lreply == -1) {
|
|
char errorstring[1024];
|
|
strerror_r(errno, (char *)errorstring, sizeof(errorstring));
|
|
debug(1, "rtsp_read_request_response_bad_packet write response error %d: \"%s\".", errno,
|
|
(char *)errorstring);
|
|
} else if (lreply != (ssize_t)strlen(response_text)) {
|
|
debug(1,
|
|
"rtsp_read_request_response_bad_packet write %zd bytes requested but %d written.",
|
|
strlen(response_text), reply);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
release_play_lock(conn);
|
|
pthread_cleanup_pop(1);
|
|
debug(2, "Connection %d: exit.", conn->connection_number);
|
|
pthread_exit(NULL);
|
|
}
|
|
|
|
/*
|
|
// this function is not thread safe.
|
|
static const char *format_address(struct sockaddr *fsa) {
|
|
static char string[INETx_ADDRSTRLEN];
|
|
void *addr;
|
|
#ifdef AF_INET6
|
|
if (fsa->sa_family == AF_INET6) {
|
|
struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)(fsa);
|
|
addr = &(sa6->sin6_addr);
|
|
} else
|
|
#endif
|
|
{
|
|
struct sockaddr_in *sa = (struct sockaddr_in *)(fsa);
|
|
addr = &(sa->sin_addr);
|
|
}
|
|
return inet_ntop(fsa->sa_family, addr, string, sizeof(string));
|
|
}
|
|
*/
|
|
|
|
void rtsp_listen_loop_cleanup_handler(__attribute__((unused)) void *arg) {
|
|
int oldState;
|
|
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &oldState);
|
|
debug(2, "rtsp_listen_loop_cleanup_handler called.");
|
|
if (conns) {
|
|
cancel_all_RTSP_threads(unspecified_stream_category, 0); // kill all RTSP listeners
|
|
free(conns);
|
|
conns = NULL;
|
|
}
|
|
int *sockfd = (int *)arg;
|
|
if (sockfd) {
|
|
int i;
|
|
for (i = 1; i <= sockfd[0]; i++) {
|
|
safe_socket_close(&sockfd[i]);
|
|
}
|
|
free(sockfd);
|
|
}
|
|
pthread_setcancelstate(oldState, NULL);
|
|
}
|
|
|
|
void *rtsp_listen_loop(__attribute((unused)) void *arg) {
|
|
// #include <syscall.h>
|
|
// debug(1, "rtsp_listen_loop PID %d", syscall(SYS_gettid));
|
|
int oldState;
|
|
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &oldState);
|
|
struct addrinfo hints, *info, *p;
|
|
char portstr[6];
|
|
int *sockfd = NULL;
|
|
int nsock = 0;
|
|
int i, ret;
|
|
|
|
principal_conn = NULL; // the data structure representing the connection that has the player.
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_family = AF_UNSPEC;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
hints.ai_flags = AI_PASSIVE;
|
|
|
|
snprintf(portstr, 6, "%d", config.port);
|
|
|
|
// debug(1,"listen socket port request is \"%s\".",portstr);
|
|
|
|
ret = getaddrinfo(NULL, portstr, &hints, &info);
|
|
if (ret) {
|
|
die("getaddrinfo failed: %s", gai_strerror(ret));
|
|
}
|
|
|
|
for (p = info; p; p = p->ai_next) {
|
|
ret = 0;
|
|
int lfd = socket(p->ai_family, p->ai_socktype, IPPROTO_TCP);
|
|
int yes = 1;
|
|
|
|
// Handle socket open failures if protocol unavailable (or IPV6 not handled)
|
|
if (lfd != -1) {
|
|
// Set the RTSP socket to close on exec() of child processes
|
|
// otherwise background run_this_before_play_begins or run_this_after_play_ends commands
|
|
// that are sleeping prevent the daemon from being restarted because
|
|
// the listening RTSP port is still in use.
|
|
// See: https://github.com/mikebrady/shairport-sync/issues/329
|
|
fcntl(lfd, F_SETFD, FD_CLOEXEC);
|
|
ret = setsockopt(lfd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes));
|
|
|
|
#ifdef IPV6_V6ONLY
|
|
// some systems don't support v4 access on v6 sockets, but some do.
|
|
// since we need to account for two sockets we might as well
|
|
// always.
|
|
if (p->ai_family == AF_INET6) {
|
|
ret |= setsockopt(lfd, IPPROTO_IPV6, IPV6_V6ONLY, &yes, sizeof(yes));
|
|
}
|
|
#endif
|
|
|
|
if (!ret)
|
|
ret = bind(lfd, p->ai_addr, p->ai_addrlen);
|
|
|
|
// one of the address families will fail on some systems that
|
|
// report its availability. do not complain.
|
|
|
|
if (ret) {
|
|
char *family;
|
|
#ifdef AF_INET6
|
|
if (p->ai_family == AF_INET6) {
|
|
family = "IPv6";
|
|
} else
|
|
#endif
|
|
family = "IPv4";
|
|
debug(1, "unable to listen on %s port %d. The error is: \"%s\".", family, config.port,
|
|
strerror(errno));
|
|
} else {
|
|
listen(lfd, 255);
|
|
nsock++;
|
|
sockfd = realloc(sockfd, (nsock + 1) * sizeof(int));
|
|
sockfd[nsock] = lfd;
|
|
sockfd[0] = nsock; // the first entry is the number of sockets in the array
|
|
}
|
|
}
|
|
|
|
/*
|
|
listen(lfd, 5);
|
|
nsock++;
|
|
sockfd = realloc(sockfd, nsock * sizeof(int));
|
|
sockfd[nsock - 1] = lfd;
|
|
*/
|
|
}
|
|
|
|
freeaddrinfo(info);
|
|
|
|
if (nsock) {
|
|
int maxfd = -1;
|
|
fd_set fds;
|
|
FD_ZERO(&fds);
|
|
// skip the first element in sockfd -- it's the count
|
|
for (i = 1; i <= nsock; i++) {
|
|
if (sockfd[i] > maxfd)
|
|
maxfd = sockfd[i];
|
|
}
|
|
|
|
char **t1 = txt_records; // ap1 text records
|
|
char **t2 = NULL; // possibly two text records
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
if (config.service_type == APST_airplay2) {
|
|
// make up a secondary set of text records
|
|
t2 = secondary_txt_records; // second set of text records in AirPlay 2 only
|
|
}
|
|
#endif
|
|
build_bonjour_strings(NULL); // no conn yet
|
|
// if a thread is created, e.g. Avahi, it'll inherit the name from this thread
|
|
mdns_register(t1, t2); // note that the dacp thread could still be using the mdns stuff after
|
|
// all player threads have been terminated, so mdns_unregister can't be
|
|
// in the rtsp_listen_loop cleanup.
|
|
pthread_setcancelstate(oldState, NULL);
|
|
int acceptfd;
|
|
struct timeval tv;
|
|
pthread_cleanup_push(rtsp_listen_loop_cleanup_handler, (void *)sockfd);
|
|
do {
|
|
pthread_testcancel();
|
|
tv.tv_sec = 60;
|
|
tv.tv_usec = 0;
|
|
|
|
// skip the first element in sockfd -- it's the count
|
|
for (i = 1; i <= nsock; i++)
|
|
FD_SET(sockfd[i], &fds);
|
|
|
|
ret = select(maxfd + 1, &fds, 0, 0, &tv);
|
|
|
|
if (ret < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
break;
|
|
}
|
|
|
|
cleanup_threads();
|
|
|
|
acceptfd = -1;
|
|
// skip the first element in sockfd -- it's the count
|
|
for (i = 1; i <= nsock; i++) {
|
|
if (FD_ISSET(sockfd[i], &fds)) {
|
|
acceptfd = sockfd[i];
|
|
break;
|
|
}
|
|
}
|
|
if (acceptfd < 0) // timeout
|
|
continue;
|
|
|
|
int release_conn = 1; // on exit, deallocate the buffer unless everything was okay
|
|
|
|
rtsp_conn_info *conn = malloc(sizeof(rtsp_conn_info));
|
|
if (conn == 0)
|
|
die("Couldn't allocate memory for an rtsp_conn_info record.");
|
|
pthread_cleanup_push(malloc_cleanup, &conn);
|
|
memset(conn, 0, sizeof(rtsp_conn_info));
|
|
conn->connection_number = RTSP_connection_index++;
|
|
debug(2, "Connection %d is at: 0x%" PRIxPTR ".", conn->connection_number, (uintptr_t)conn);
|
|
|
|
// this means that the OPTIONS string we send before getting an ANNOUNCE is for AirPlay 2
|
|
#ifdef CONFIG_AIRPLAY_2
|
|
conn->airplay_type = ap_2; // changed if an ANNOUNCE is received
|
|
conn->timing_type = ts_ptp; // changed if an ANNOUNCE is received
|
|
#else
|
|
conn->airplay_stream_category =
|
|
classic_airplay_stream; // really just used for debug messages in Classic AirPlay builds
|
|
#endif
|
|
|
|
socklen_t size_of_reply = sizeof(SOCKADDR);
|
|
conn->fd = eintr_checked_accept(acceptfd, (struct sockaddr *)&conn->remote, &size_of_reply);
|
|
if (conn->fd < 0) {
|
|
debug(1, "Connection %d: New connection on port %d not accepted:", conn->connection_number,
|
|
config.port);
|
|
perror("failed to accept connection");
|
|
|
|
#ifndef CONFIG_AIRPLAY_2
|
|
// in Classic AirPlay, close the connection unless idle or interruptions allowed...
|
|
} else if ((principal_conn != NULL) && (config.allow_session_interruption == 0)) {
|
|
debug(1, "Connection %d: %s session interruption not allowed", conn->connection_number,
|
|
get_category_string(conn->airplay_stream_category));
|
|
safe_socket_close(&conn->fd);
|
|
#endif
|
|
|
|
} else {
|
|
size_of_reply = sizeof(SOCKADDR);
|
|
if (getsockname(conn->fd, (struct sockaddr *)&conn->local, &size_of_reply) == 0) {
|
|
|
|
if ((config.dont_check_timeout == 0) && (config.timeout >= 60)) {
|
|
/*
|
|
// shouldn't need this!
|
|
|
|
struct timeval tv;
|
|
tv.tv_sec = config.timeout; // seconds
|
|
tv.tv_usec = 0; // microseconds
|
|
if (setsockopt(conn->fd, SOL_SOCKET, SO_RCVTIMEO, (const char *)&tv, sizeof tv) != 0)
|
|
{ char errorstring[1024]; strerror_r(errno, (char *)errorstring, sizeof(errorstring));
|
|
debug(1, "could not set time limit on read_from_rtsp_connection -- error %d
|
|
\"%s\".", errno, errorstring);
|
|
}
|
|
*/
|
|
// skip this stuff in OpenBSD
|
|
#ifndef COMPILE_FOR_OPENBSD
|
|
// Thanks to https://holmeshe.me/network-essentials-setsockopt-SO_KEEPALIVE/ for this.
|
|
|
|
// turn on keepalive stuff -- wait for keepidle + (keepcnt * keepinttvl time) seconds
|
|
// before giving up an ETIMEOUT error is returned if the keepalive check fails
|
|
|
|
// if TCP_KEEPINTVL is defined, check a few times before declaring the line dead
|
|
// otherwise just wait a little while longer
|
|
|
|
#ifdef TCP_KEEPINTVL
|
|
int keepAliveIdleTime =
|
|
config.timeout -
|
|
5 * 5; // wait this many seconds before checking for a dropped client
|
|
// a minute seems a bit short...
|
|
int keepAliveCount = 5; // check this many times
|
|
int keepAliveInterval = 5; // wait this many seconds between checks
|
|
#else
|
|
int keepAliveIdleTime =
|
|
config.timeout; // wait this many seconds before dropping a client
|
|
#endif
|
|
|
|
// --- the following is a bit too complicated
|
|
// decide to use IPPROTO_TCP or SOL_TCP
|
|
#if defined COMPILE_FOR_BSD || defined COMPILE_FOR_OSX
|
|
#define SOL_OPTION IPPROTO_TCP
|
|
#else
|
|
#define SOL_OPTION SOL_TCP
|
|
#endif
|
|
// decide to use TCP_KEEPALIVE or TCP_KEEPIDLE
|
|
#ifdef COMPILE_FOR_OSX
|
|
#define KEEP_ALIVE_OR_IDLE_OPTION TCP_KEEPALIVE
|
|
#else
|
|
#define KEEP_ALIVE_OR_IDLE_OPTION TCP_KEEPIDLE
|
|
#endif
|
|
debug(3, "Connection %d: set the keepAliveIdleTime to %d seconds.",
|
|
conn->connection_number, keepAliveIdleTime);
|
|
if (setsockopt(conn->fd, SOL_OPTION, KEEP_ALIVE_OR_IDLE_OPTION,
|
|
(void *)&keepAliveIdleTime, sizeof(keepAliveIdleTime))) {
|
|
debug(1, "can't set the keepAliveIdleTime wait time");
|
|
}
|
|
// ---
|
|
// if TCP_KEEPINTVL is defined...
|
|
#ifdef TCP_KEEPINTVL
|
|
debug(3, "Connection %d: set the keepAliveCount to %d.", conn->connection_number,
|
|
keepAliveCount);
|
|
if (setsockopt(conn->fd, SOL_OPTION, TCP_KEEPCNT, (void *)&keepAliveCount,
|
|
sizeof(keepAliveCount))) {
|
|
debug(1, "can't set the keepAliveCount count");
|
|
}
|
|
debug(3, "Connection %d: set the keepAliveCount interval to %d seconds.",
|
|
conn->connection_number, keepAliveInterval);
|
|
if (setsockopt(conn->fd, SOL_OPTION, TCP_KEEPINTVL, (void *)&keepAliveInterval,
|
|
sizeof(keepAliveInterval))) {
|
|
debug(1, "can't set the keepAliveCount count interval");
|
|
};
|
|
#endif
|
|
debug(3, "Connection %d: enable SO_KEEPALIVE.", conn->connection_number);
|
|
int flags = 1;
|
|
if (setsockopt(conn->fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&flags, sizeof(flags))) {
|
|
debug(1, "can't set SO_KEEPALIVE.");
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// initialise the connection info
|
|
void *client_addr = NULL, *self_addr = NULL;
|
|
conn->connection_ip_family = conn->local.SAFAMILY;
|
|
|
|
#ifdef AF_INET6
|
|
if (conn->connection_ip_family == AF_INET6) {
|
|
struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)&conn->remote;
|
|
client_addr = &(sa6->sin6_addr);
|
|
conn->client_rtsp_port = ntohs(sa6->sin6_port);
|
|
|
|
sa6 = (struct sockaddr_in6 *)&conn->local;
|
|
self_addr = &(sa6->sin6_addr);
|
|
conn->self_rtsp_port = ntohs(sa6->sin6_port);
|
|
conn->self_scope_id = sa6->sin6_scope_id;
|
|
}
|
|
#endif
|
|
if (conn->connection_ip_family == AF_INET) {
|
|
struct sockaddr_in *sa4 = (struct sockaddr_in *)&conn->remote;
|
|
client_addr = &(sa4->sin_addr);
|
|
conn->client_rtsp_port = ntohs(sa4->sin_port);
|
|
|
|
sa4 = (struct sockaddr_in *)&conn->local;
|
|
self_addr = &(sa4->sin_addr);
|
|
conn->self_rtsp_port = ntohs(sa4->sin_port);
|
|
}
|
|
|
|
inet_ntop(conn->connection_ip_family, client_addr, conn->client_ip_string,
|
|
sizeof(conn->client_ip_string));
|
|
inet_ntop(conn->connection_ip_family, self_addr, conn->self_ip_string,
|
|
sizeof(conn->self_ip_string));
|
|
|
|
debug(2, "Connection %d: New connection from %s:%u to self at %s:%u.",
|
|
conn->connection_number, conn->client_ip_string, conn->client_rtsp_port,
|
|
conn->self_ip_string, conn->self_rtsp_port);
|
|
conn->connection_start_time = get_absolute_time_in_ns();
|
|
} else {
|
|
debug(1, "Error figuring out Shairport Sync's own IP number.");
|
|
}
|
|
|
|
ret = named_pthread_create(&conn->thread, NULL, rtsp_conversation_thread_func, conn,
|
|
"rtsp_conn_%d",
|
|
conn->connection_number); // also acts as a memory barrier
|
|
if (ret) {
|
|
char errorstring[1024];
|
|
strerror_r(ret, (char *)errorstring, sizeof(errorstring));
|
|
die("Connection %d: cannot create an RTSP conversation thread. Error %d: \"%s\".",
|
|
conn->connection_number, ret, (char *)errorstring);
|
|
}
|
|
|
|
#ifndef CONFIG_AIRPLAY_2
|
|
// in Classic AirPlay, since we know (by getting here) that interruptions are allowed, grab
|
|
// the principal conn
|
|
if (get_play_lock(conn, config.allow_session_interruption) ==
|
|
play_lock_acquired_without_breaking_in) {
|
|
// now, if this new session did not break in, then it's okay to reset the next UDP ports
|
|
// to the start of the range
|
|
resetFreeUDPPort();
|
|
}
|
|
#endif
|
|
|
|
debug(3, "Successfully created RTSP receiver thread %d.", conn->connection_number);
|
|
conn->running = 1; // this must happen before the thread is tracked
|
|
track_thread(conn);
|
|
release_conn = 0; // successfully initialised
|
|
}
|
|
pthread_cleanup_pop(release_conn); // release the conn malloc if any kind of error
|
|
} while (1);
|
|
pthread_cleanup_pop(1); // should never happen
|
|
} else {
|
|
die("could not establish a service on port %d -- program terminating. Is another instance of "
|
|
"Shairport Sync running on this device?",
|
|
config.port);
|
|
}
|
|
debug(1, "Fell out of the RTSP select loop -- this should never happen!");
|
|
pthread_exit(NULL);
|
|
}
|