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Commit 19549633 authored by Max Kellermann's avatar Max Kellermann
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output/raop: move RTSP client code to rtsp_client.c

Restore some of the original file structure from from raop_play.
parent 9ccaa904
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Showing with 738 additions and 513 deletions
Makefile.am
View file @ 19549633
......@@ -776,6 +776,7 @@ endif
if ENABLE_RAOP_OUTPUT
OUTPUT_SRC += \
src/ntp_server.c src/ntp_server.h \
src/rtsp_client.c src/rtsp_client.h \
src/output/raop_output_plugin.c
MIXER_SRC += src/mixer/raop_mixer_plugin.c
OUTPUT_LIBS += $(OPENSSL_LIBS)
......
src/output/raop_output_plugin.c
View file @ 19549633
......@@ -17,9 +17,11 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "raop_output_plugin.h"
#include "output_api.h"
#include "mixer_list.h"
#include "raop_output_plugin.h"
#include "rtsp_client.h"
#include "glib_compat.h"
#include <glib.h>
......@@ -32,12 +34,9 @@
#ifndef WIN32
#include <arpa/inet.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <sys/poll.h>
#include <netdb.h>
#endif
#include <fcntl.h>
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "raop"
......@@ -101,81 +100,6 @@ new_raop_data(GError **error_r)
return ret;
}
/*
* read one line from the file descriptor
* timeout: msec unit, -1 for infinite
* if CR comes then following LF is expected
* returned string in line is always null terminated, maxlen-1 is maximum string length
*/
static int
read_line(int fd, char *line, int maxlen, int timeout, int no_poll)
{
int i, rval;
int count = 0;
struct pollfd pfds;
char ch;
*line = 0;
pfds.events = POLLIN;
pfds.fd = fd;
for (i = 0;i < maxlen; i++) {
if (no_poll || poll(&pfds, 1, timeout))
rval=read(fd,&ch,1);
else return 0;
if (rval == -1) {
if (errno == EAGAIN) return 0;
g_warning("%s:read error: %s\n", __func__, strerror(errno));
return -1;
}
if (rval == 0) {
g_debug("%s:disconnected on the other end\n", __func__);
return -1;
}
if(ch == '\n') {
*line = 0;
return count;
}
if (ch == '\r') continue;
*line++ = ch;
count++;
if (count >= maxlen - 1) break;
}
*line = 0;
return count;
}
/*
* Free all memory associated with key_data
*/
static void
free_kd(struct key_data *kd)
{
struct key_data *iter = kd;
while (iter) {
g_free(iter->key);
g_free(iter->data);
iter = iter->next;
g_free(kd);
kd = iter;
}
}
/*
* key_data type data look up
*/
static char *
kd_lookup(struct key_data *kd, const char *key)
{
while (kd) {
if (!strcmp(kd->key, key)) {
return kd->data;
}
kd = kd->next;
}
return NULL;
}
/*
* remove one character from a string
* return the number of deleted characters
......@@ -199,8 +123,6 @@ remove_char_from_string(char *str, char c)
return src - dst;
}
#define SLEEP_MSEC(val) usleep(val*1000)
/* bind an opened socket to specified hostname and port.
* if hostname=NULL, use INADDR_ANY.
* if *port=0, use dynamically assigned port
......@@ -262,31 +184,6 @@ static int bind_host(int sd, char *hostname, unsigned long ulAddr,
}
/*
* open tcp port
*/
static int
open_tcp_socket(char *hostname, unsigned short *port,
GError **error_r)
{
int sd;
/* socket creation */
sd = socket(AF_INET, SOCK_STREAM, 0);
if (sd < 0) {
g_set_error(error_r, raop_output_quark(), errno,
"failed to create TCP socket: %s",
g_strerror(errno));
return -1;
}
if (bind_host(sd, hostname, 0, port, error_r)) {
close(sd);
return -1;
}
return sd;
}
/*
* open udp port
*/
static int
......@@ -318,29 +215,6 @@ open_udp_socket(char *hostname, unsigned short *port,
return sd;
}
/*
* create tcp connection
* as long as the socket is not non-blocking, this can block the process
* nsport is network byte order
*/
static bool
get_tcp_connect(int sd, struct sockaddr_in dest_addr, GError **error_r)
{
if (connect(sd, (struct sockaddr *)&dest_addr, sizeof(struct sockaddr))){
SLEEP_MSEC(100L);
// try one more time
if (connect(sd, (struct sockaddr *)&dest_addr, sizeof(struct sockaddr))) {
g_set_error(error_r, raop_output_quark(), errno,
"failed to connect to %s:%d: %s",
inet_ntoa(dest_addr.sin_addr),
ntohs(dest_addr.sin_port),
g_strerror(errno));
return false;
}
}
return true;
}
static bool
get_sockaddr_by_host(const char *host, short destport,
struct sockaddr_in *addr,
......@@ -355,7 +229,7 @@ get_sockaddr_by_host(const char *host, short destport,
} else {
addr->sin_family = AF_INET;
if ((addr->sin_addr.s_addr=inet_addr(host))==0xFFFFFFFF) {
g_set_error(error_r, raop_output_quark(), 0,
g_set_error(error_r, rtsp_client_quark(), 0,
"failed to resolve host '%s'", host);
return false;
}
......@@ -364,16 +238,6 @@ get_sockaddr_by_host(const char *host, short destport,
return true;
}
static bool
get_tcp_connect_by_host(int sd, const char *host, short destport,
GError **error_r)
{
struct sockaddr_in addr;
return get_sockaddr_by_host(host, destport, &addr, error_r) &&
get_tcp_connect(sd, addr, error_r);
}
/*
* Calculate the current NTP time, store it in the buffer.
*/
......@@ -457,348 +321,6 @@ send_control_command(struct control_data *ctrl, struct raop_data *rd,
return true;
}
/*
* send RTSP request, and get response if it's needed
* if this gets a success, *kd is allocated or reallocated (if *kd is not NULL)
*/
static bool
exec_request(struct rtspcl_data *rtspcld, const char *cmd,
const char *content_type, const char *content,
int get_response,
const struct key_data *hds, struct key_data **kd,
GError **error_r)
{
char line[1024];
char req[1024];
char reql[128];
const char delimiters[] = " ";
char *token, *dp;
int i,dsize = 0,rval;
struct key_data *cur_kd = *kd;
unsigned int j;
int timeout = 5000; // msec unit
fd_set rdfds;
int fdmax = 0;
struct timeval tout = {.tv_sec=10, .tv_usec=0};
if (!rtspcld) {
g_set_error_literal(error_r, raop_output_quark(), 0,
"not connected");
return false;
}
sprintf(req, "%s %s RTSP/1.0\r\nCSeq: %d\r\n", cmd, rtspcld->url, ++rtspcld->cseq );
if ( rtspcld->session != NULL ) {
sprintf(reql,"Session: %s\r\n", rtspcld->session );
strncat(req,reql,sizeof(req));
}
const struct key_data *hd_iter = hds;
while (hd_iter) {
sprintf(reql, "%s: %s\r\n", hd_iter->key, hd_iter->data);
strncat(req, reql, sizeof(req));
hd_iter = hd_iter->next;
}
if (content_type && content) {
sprintf(reql, "Content-Type: %s\r\nContent-Length: %d\r\n",
content_type, (int) strlen(content));
strncat(req,reql,sizeof(req));
}
sprintf(reql, "User-Agent: %s\r\n", rtspcld->useragent);
strncat(req, reql, sizeof(req));
hd_iter = rtspcld->exthds;
while (hd_iter) {
sprintf(reql, "%s: %s\r\n", hd_iter->key, hd_iter->data);
strncat(req, reql, sizeof(req));
hd_iter = hd_iter->next;
}
strncat(req, "\r\n", sizeof(req));
if (content_type && content)
strncat(req, content, sizeof(req));
rval = write(rtspcld->fd, req, strlen(req));
if (rval < 0) {
g_set_error(error_r, raop_output_quark(), errno,
"write error: %s",
g_strerror(errno));
return false;
}
if (!get_response) return true;
while (true) {
FD_ZERO(&rdfds);
FD_SET(rtspcld->fd, &rdfds);
fdmax = rtspcld->fd;
select(fdmax + 1, &rdfds, NULL, NULL, &tout);
if (FD_ISSET(rtspcld->fd, &rdfds)) {
break;
}
}
if (read_line(rtspcld->fd, line, sizeof(line), timeout, 0) <= 0) {
g_set_error_literal(error_r, raop_output_quark(), 0,
"request failed");
return false;
}
token = strtok(line, delimiters);
token = strtok(NULL, delimiters);
if (token == NULL) {
g_set_error_literal(error_r, raop_output_quark(), 0,
"request failed");
return false;
}
if (strcmp(token, "200") != 0) {
g_set_error(error_r, raop_output_quark(), 0,
"request failed: %s", token);
return false;
}
i = 0;
while (read_line(rtspcld->fd, line, sizeof(line), timeout, 0) > 0) {
struct key_data *new_kd = NULL;
timeout = 1000; // once it started, it shouldn't take a long time
if (i && line[0] == ' ') {
for (j = 0; j < strlen(line); j++) if (line[j] != ' ') break;
dsize += strlen(line + j);
new_kd->data = g_realloc(new_kd->data, dsize);
strcat(new_kd->data, line + j);
continue;
}
dp = strstr(line, ":");
if (!dp) {
free_kd(*kd);
*kd = NULL;
g_set_error_literal(error_r, raop_output_quark(), 0,
"request failed, bad header");
return false;
}
*dp = 0;
new_kd = g_new(struct key_data, 1);
new_kd->key = g_strdup(line);
dsize = strlen(dp + 1) + 1;
new_kd->data = g_strdup(dp);
new_kd->next = NULL;
if (cur_kd == NULL) {
cur_kd = *kd = new_kd;
} else {
cur_kd->next = new_kd;
cur_kd = new_kd;
}
i++;
}
return true;
}
static bool
rtspcl_set_parameter(struct rtspcl_data *rtspcld, const char *parameter,
GError **error_r)
{
return exec_request(rtspcld, "SET_PARAMETER", "text/parameters",
parameter, 1, NULL, &rtspcld->kd, error_r);
}
static struct rtspcl_data *
rtspcl_open(void)
{
struct rtspcl_data *rtspcld;
rtspcld = g_new0(struct rtspcl_data, 1);
rtspcld->useragent = "RTSPClient";
return rtspcld;
}
static void
rtspcl_remove_all_exthds(struct rtspcl_data *rtspcld)
{
free_kd(rtspcld->exthds);
rtspcld->exthds = NULL;
}
static void
rtspcl_disconnect(struct rtspcl_data *rtspcld)
{
if (rtspcld->fd > 0) close(rtspcld->fd);
rtspcld->fd = 0;
}
static void
rtspcl_set_useragent(struct rtspcl_data *rtspcld, const char *name)
{
rtspcld->useragent = name;
}
static void
rtspcl_add_exthds(struct rtspcl_data *rtspcld, const char *key, char *data)
{
struct key_data *new_kd;
new_kd = g_new(struct key_data, 1);
new_kd->key = g_strdup(key);
new_kd->data = g_strdup(data);
new_kd->next = NULL;
if (!rtspcld->exthds) {
rtspcld->exthds = new_kd;
} else {
struct key_data *iter = rtspcld->exthds;
while (iter->next) {
iter = iter->next;
}
iter->next = new_kd;
}
}
static bool
rtspcl_connect(struct rtspcl_data *rtspcld, const char *host, short destport,
const char *sid, GError **error_r)
{
unsigned short myport = 0;
struct sockaddr_in name;
socklen_t namelen = sizeof(name);
if ((rtspcld->fd = open_tcp_socket(NULL, &myport, error_r)) == -1)
return false;
if (!get_tcp_connect_by_host(rtspcld->fd, host, destport, error_r))
return false;
getsockname(rtspcld->fd, (struct sockaddr*)&name, &namelen);
memcpy(&rtspcld->local_addr, &name.sin_addr,sizeof(struct in_addr));
sprintf(rtspcld->url, "rtsp://%s/%s", inet_ntoa(name.sin_addr), sid);
getpeername(rtspcld->fd, (struct sockaddr*)&name, &namelen);
memcpy(&rtspcld->host_addr, &name.sin_addr, sizeof(struct in_addr));
return true;
}
static bool
rtspcl_announce_sdp(struct rtspcl_data *rtspcld, const char *sdp,
GError **error_r)
{
return exec_request(rtspcld, "ANNOUNCE", "application/sdp", sdp, 1,
NULL, &rtspcld->kd, error_r);
}
static bool
rtspcl_setup(struct rtspcl_data *rtspcld, struct key_data **kd,
GError **error_r)
{
struct key_data *rkd = NULL, hds;
const char delimiters[] = ";";
char *buf = NULL;
char *token, *pc;
int rval = false;
static char transport_key[] = "Transport";
char transport_value[256];
snprintf(transport_value, sizeof(transport_value),
"RTP/AVP/UDP;unicast;interleaved=0-1;mode=record;control_port=%d;timing_port=%d",
raop_session->ctrl.port, raop_session->ntp.port);
hds.key = transport_key;
hds.data = transport_value;
hds.next = NULL;
if (!exec_request(rtspcld, "SETUP", NULL, NULL, 1,
&hds, &rkd, error_r))
return false;
if (!(rtspcld->session = g_strdup(kd_lookup(rkd, "Session")))) {
g_set_error_literal(error_r, raop_output_quark(), 0,
"no session in response");
goto erexit;
}
if (!(rtspcld->transport = kd_lookup(rkd, "Transport"))) {
g_set_error_literal(error_r, raop_output_quark(), 0,
"no transport in response");
goto erexit;
}
buf = g_strdup(rtspcld->transport);
token = strtok(buf, delimiters);
rtspcld->server_port = 0;
rtspcld->control_port = 0;
while (token) {
if ((pc = strstr(token, "="))) {
*pc = 0;
if (!strcmp(token,"server_port")) {
rtspcld->server_port=atoi(pc + 1);
}
if (!strcmp(token,"control_port")) {
rtspcld->control_port=atoi(pc + 1);
}
}
token = strtok(NULL, delimiters);
}
if (rtspcld->server_port == 0) {
g_set_error_literal(error_r, raop_output_quark(), 0,
"no server_port in response");
goto erexit;
}
if (rtspcld->control_port == 0) {
g_set_error_literal(error_r, raop_output_quark(), 0,
"no control_port in response");
goto erexit;
}
rval = true;
erexit:
g_free(buf);
if (!rval) {
free_kd(rkd);
rkd = NULL;
}
*kd = rkd;
return rval;
}
static bool
rtspcl_record(struct rtspcl_data *rtspcld, GError **error_r)
{
if (!rtspcld->session) {
g_set_error_literal(error_r, raop_output_quark(), 0,
"no session in progress");
return false;
}
char buf[128];
sprintf(buf, "seq=%d,rtptime=%u", raop_session->play_state.seq_num, raop_session->play_state.rtptime);
struct key_data rtp;
static char rtp_key[] = "RTP-Info";
rtp.key = rtp_key;
rtp.data = buf;
rtp.next = NULL;
struct key_data range;
static char range_key[] = "Range";
range.key = range_key;
static char range_value[] = "npt=0-";
range.data = range_value;
range.next = &rtp;
return exec_request(rtspcld, "RECORD", NULL, NULL, 1, &range,
&rtspcld->kd, error_r);
}
static void
rtspcl_close(struct rtspcl_data *rtspcld)
{
rtspcl_disconnect(rtspcld);
rtspcl_remove_all_exthds(rtspcld);
g_free(rtspcld->session);
g_free(rtspcld);
}
static char* rtspcl_local_ip(struct rtspcl_data *rtspcld)
{
return inet_ntoa(rtspcld->local_addr);
}
static int rsa_encrypt(const unsigned char *text, int len, unsigned char *res)
{
RSA *rsa;
......@@ -989,7 +511,9 @@ raopcl_connect(struct raop_data *rd, GError **error_r)
if (!rtspcl_announce_sdp(rd->rtspcl, sdp, error_r))
goto erexit;
// if (!rtspcl_mark_del_exthds(rd->rtspcl, "Apple-Challenge")) goto erexit;
if (!rtspcl_setup(rd->rtspcl, &setup_kd, error_r))
if (!rtspcl_setup(rd->rtspcl, &setup_kd,
raop_session->ctrl.port, raop_session->ntp.port,
error_r))
goto erexit;
if (!(aj = kd_lookup(setup_kd,"Audio-Jack-Status"))) {
g_set_error_literal(error_r, raop_output_quark(), 0,
......@@ -1020,7 +544,10 @@ raopcl_connect(struct raop_data *rd, GError **error_r)
&rd->data_addr, error_r))
goto erexit;
if (!rtspcl_record(rd->rtspcl, error_r))
if (!rtspcl_record(rd->rtspcl,
raop_session->play_state.seq_num,
raop_session->play_state.rtptime,
error_r))
goto erexit;
raopcl_stream_connect(rd);
......
src/output/raop_output_plugin.h
View file @ 19549633
......@@ -21,26 +21,13 @@
#define MPD_OUTPUT_RAOP_PLUGIN_H
#include "ntp_server.h"
#include "rtsp_client.h"
#include <glib.h>
#include <stdbool.h>
#include <sys/time.h>
#include <openssl/aes.h>
#ifdef WIN32
#define WINVER 0x0501
#include <ws2tcpip.h>
#include <winsock.h>
#else
#include <netinet/in.h>
#endif
struct key_data {
char *key;
char *data;
struct key_data *next;
};
struct play_state {
bool playing;
unsigned short seq_num;
......@@ -53,22 +40,6 @@ struct play_state {
/*********************************************************************/
struct rtspcl_data {
int fd;
char url[128];
int cseq;
struct key_data *kd;
struct key_data *exthds;
char *session;
char *transport;
unsigned short server_port;
unsigned short control_port;
struct in_addr host_addr;
struct in_addr local_addr;
const char *useragent;
};
enum pause_state {
NO_PAUSE = 0,
OP_PAUSE,
......
src/rtsp_client.c 0 → 100644
View file @ 19549633
/*
* Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* Based on the RTSP client by Shiro Ninomiya <shiron@snino.com>
*/
#include "rtsp_client.h"
#include "glib_compat.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#ifdef WIN32
#define WINVER 0x0501
#include <ws2tcpip.h>
#include <winsock.h>
#else
#include <arpa/inet.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <sys/poll.h>
#include <netdb.h>
#endif
/*
* Free all memory associated with key_data
*/
void
free_kd(struct key_data *kd)
{
struct key_data *iter = kd;
while (iter) {
g_free(iter->key);
g_free(iter->data);
iter = iter->next;
g_free(kd);
kd = iter;
}
}
/*
* key_data type data look up
*/
char *
kd_lookup(struct key_data *kd, const char *key)
{
while (kd) {
if (!strcmp(kd->key, key)) {
return kd->data;
}
kd = kd->next;
}
return NULL;
}
struct rtspcl_data *
rtspcl_open(void)
{
struct rtspcl_data *rtspcld;
rtspcld = g_new0(struct rtspcl_data, 1);
rtspcld->useragent = "RTSPClient";
return rtspcld;
}
/* bind an opened socket to specified hostname and port.
* if hostname=NULL, use INADDR_ANY.
* if *port=0, use dynamically assigned port
*/
static int bind_host(int sd, char *hostname, unsigned long ulAddr,
unsigned short *port, GError **error_r)
{
struct sockaddr_in my_addr;
socklen_t nlen = sizeof(struct sockaddr);
struct hostent *h;
memset(&my_addr, 0, sizeof(my_addr));
/* use specified hostname */
if (hostname) {
/* get server IP address (no check if input is IP address or DNS name) */
h = gethostbyname(hostname);
if (h == NULL) {
if (strstr(hostname, "255.255.255.255") == hostname) {
my_addr.sin_addr.s_addr=-1;
} else {
if ((my_addr.sin_addr.s_addr = inet_addr(hostname)) == 0xFFFFFFFF) {
g_set_error(error_r, rtsp_client_quark(), 0,
"failed to resolve host '%s'",
hostname);
return -1;
}
}
my_addr.sin_family = AF_INET;
} else {
my_addr.sin_family = h->h_addrtype;
memcpy((char *) &my_addr.sin_addr.s_addr,
h->h_addr_list[0], h->h_length);
}
} else {
// if hostname=NULL, use INADDR_ANY
if (ulAddr)
my_addr.sin_addr.s_addr = ulAddr;
else
my_addr.sin_addr.s_addr = htonl(INADDR_ANY);
my_addr.sin_family = AF_INET;
}
/* bind a specified port */
my_addr.sin_port = htons(*port);
if (bind(sd, (struct sockaddr *) &my_addr, sizeof(my_addr)) < 0) {
g_set_error(error_r, rtsp_client_quark(), errno,
"failed to bind socket: %s",
g_strerror(errno));
return -1;
}
if (*port == 0) {
getsockname(sd, (struct sockaddr *) &my_addr, &nlen);
*port = ntohs(my_addr.sin_port);
}
return 0;
}
/*
* open tcp port
*/
static int
open_tcp_socket(char *hostname, unsigned short *port,
GError **error_r)
{
int sd;
/* socket creation */
sd = socket(AF_INET, SOCK_STREAM, 0);
if (sd < 0) {
g_set_error(error_r, rtsp_client_quark(), errno,
"failed to create TCP socket: %s",
g_strerror(errno));
return -1;
}
if (bind_host(sd, hostname, 0, port, error_r)) {
close(sd);
return -1;
}
return sd;
}
static bool
get_sockaddr_by_host(const char *host, short destport,
struct sockaddr_in *addr,
GError **error_r)
{
struct hostent *h;
h = gethostbyname(host);
if (h) {
addr->sin_family = h->h_addrtype;
memcpy((char *) &addr->sin_addr.s_addr, h->h_addr_list[0], h->h_length);
} else {
addr->sin_family = AF_INET;
if ((addr->sin_addr.s_addr=inet_addr(host))==0xFFFFFFFF) {
g_set_error(error_r, rtsp_client_quark(), 0,
"failed to resolve host '%s'", host);
return false;
}
}
addr->sin_port = htons(destport);
return true;
}
#define SLEEP_MSEC(val) usleep(val*1000)
/*
* create tcp connection
* as long as the socket is not non-blocking, this can block the process
* nsport is network byte order
*/
static bool
get_tcp_connect(int sd, struct sockaddr_in dest_addr, GError **error_r)
{
if (connect(sd, (struct sockaddr *)&dest_addr, sizeof(struct sockaddr))){
SLEEP_MSEC(100L);
// try one more time
if (connect(sd, (struct sockaddr *)&dest_addr, sizeof(struct sockaddr))) {
g_set_error(error_r, rtsp_client_quark(), errno,
"failed to connect to %s:%d: %s",
inet_ntoa(dest_addr.sin_addr),
ntohs(dest_addr.sin_port),
g_strerror(errno));
return false;
}
}
return true;
}
static bool
get_tcp_connect_by_host(int sd, const char *host, short destport,
GError **error_r)
{
struct sockaddr_in addr;
return get_sockaddr_by_host(host, destport, &addr, error_r) &&
get_tcp_connect(sd, addr, error_r);
}
bool
rtspcl_connect(struct rtspcl_data *rtspcld, const char *host, short destport,
const char *sid, GError **error_r)
{
unsigned short myport = 0;
struct sockaddr_in name;
socklen_t namelen = sizeof(name);
if ((rtspcld->fd = open_tcp_socket(NULL, &myport, error_r)) == -1)
return false;
if (!get_tcp_connect_by_host(rtspcld->fd, host, destport, error_r))
return false;
getsockname(rtspcld->fd, (struct sockaddr*)&name, &namelen);
memcpy(&rtspcld->local_addr, &name.sin_addr,sizeof(struct in_addr));
sprintf(rtspcld->url, "rtsp://%s/%s", inet_ntoa(name.sin_addr), sid);
getpeername(rtspcld->fd, (struct sockaddr*)&name, &namelen);
memcpy(&rtspcld->host_addr, &name.sin_addr, sizeof(struct in_addr));
return true;
}
static void
rtspcl_disconnect(struct rtspcl_data *rtspcld)
{
if (rtspcld->fd > 0) close(rtspcld->fd);
rtspcld->fd = 0;
}
static void
rtspcl_remove_all_exthds(struct rtspcl_data *rtspcld)
{
free_kd(rtspcld->exthds);
rtspcld->exthds = NULL;
}
void
rtspcl_close(struct rtspcl_data *rtspcld)
{
rtspcl_disconnect(rtspcld);
rtspcl_remove_all_exthds(rtspcld);
g_free(rtspcld->session);
g_free(rtspcld);
}
void
rtspcl_add_exthds(struct rtspcl_data *rtspcld, const char *key, char *data)
{
struct key_data *new_kd;
new_kd = g_new(struct key_data, 1);
new_kd->key = g_strdup(key);
new_kd->data = g_strdup(data);
new_kd->next = NULL;
if (!rtspcld->exthds) {
rtspcld->exthds = new_kd;
} else {
struct key_data *iter = rtspcld->exthds;
while (iter->next) {
iter = iter->next;
}
iter->next = new_kd;
}
}
/*
* read one line from the file descriptor
* timeout: msec unit, -1 for infinite
* if CR comes then following LF is expected
* returned string in line is always null terminated, maxlen-1 is maximum string length
*/
static int
read_line(int fd, char *line, int maxlen, int timeout, int no_poll)
{
int i, rval;
int count = 0;
struct pollfd pfds;
char ch;
*line = 0;
pfds.events = POLLIN;
pfds.fd = fd;
for (i = 0;i < maxlen; i++) {
if (no_poll || poll(&pfds, 1, timeout))
rval=read(fd,&ch,1);
else return 0;
if (rval == -1) {
if (errno == EAGAIN) return 0;
g_warning("%s:read error: %s\n", __func__, strerror(errno));
return -1;
}
if (rval == 0) {
g_debug("%s:disconnected on the other end\n", __func__);
return -1;
}
if(ch == '\n') {
*line = 0;
return count;
}
if (ch == '\r') continue;
*line++ = ch;
count++;
if (count >= maxlen - 1) break;
}
*line = 0;
return count;
}
/*
* send RTSP request, and get response if it's needed
* if this gets a success, *kd is allocated or reallocated (if *kd is not NULL)
*/
bool
exec_request(struct rtspcl_data *rtspcld, const char *cmd,
const char *content_type, const char *content,
int get_response,
const struct key_data *hds, struct key_data **kd,
GError **error_r)
{
char line[1024];
char req[1024];
char reql[128];
const char delimiters[] = " ";
char *token, *dp;
int i,dsize = 0,rval;
struct key_data *cur_kd = *kd;
unsigned int j;
int timeout = 5000; // msec unit
fd_set rdfds;
int fdmax = 0;
struct timeval tout = {.tv_sec=10, .tv_usec=0};
if (!rtspcld) {
g_set_error_literal(error_r, rtsp_client_quark(), 0,
"not connected");
return false;
}
sprintf(req, "%s %s RTSP/1.0\r\nCSeq: %d\r\n", cmd, rtspcld->url, ++rtspcld->cseq );
if ( rtspcld->session != NULL ) {
sprintf(reql,"Session: %s\r\n", rtspcld->session );
strncat(req,reql,sizeof(req));
}
const struct key_data *hd_iter = hds;
while (hd_iter) {
sprintf(reql, "%s: %s\r\n", hd_iter->key, hd_iter->data);
strncat(req, reql, sizeof(req));
hd_iter = hd_iter->next;
}
if (content_type && content) {
sprintf(reql, "Content-Type: %s\r\nContent-Length: %d\r\n",
content_type, (int) strlen(content));
strncat(req,reql,sizeof(req));
}
sprintf(reql, "User-Agent: %s\r\n", rtspcld->useragent);
strncat(req, reql, sizeof(req));
hd_iter = rtspcld->exthds;
while (hd_iter) {
sprintf(reql, "%s: %s\r\n", hd_iter->key, hd_iter->data);
strncat(req, reql, sizeof(req));
hd_iter = hd_iter->next;
}
strncat(req, "\r\n", sizeof(req));
if (content_type && content)
strncat(req, content, sizeof(req));
rval = write(rtspcld->fd, req, strlen(req));
if (rval < 0) {
g_set_error(error_r, rtsp_client_quark(), errno,
"write error: %s",
g_strerror(errno));
return false;
}
if (!get_response) return true;
while (true) {
FD_ZERO(&rdfds);
FD_SET(rtspcld->fd, &rdfds);
fdmax = rtspcld->fd;
select(fdmax + 1, &rdfds, NULL, NULL, &tout);
if (FD_ISSET(rtspcld->fd, &rdfds)) {
break;
}
}
if (read_line(rtspcld->fd, line, sizeof(line), timeout, 0) <= 0) {
g_set_error_literal(error_r, rtsp_client_quark(), 0,
"request failed");
return false;
}
token = strtok(line, delimiters);
token = strtok(NULL, delimiters);
if (token == NULL) {
g_set_error_literal(error_r, rtsp_client_quark(), 0,
"request failed");
return false;
}
if (strcmp(token, "200") != 0) {
g_set_error(error_r, rtsp_client_quark(), 0,
"request failed: %s", token);
return false;
}
i = 0;
while (read_line(rtspcld->fd, line, sizeof(line), timeout, 0) > 0) {
struct key_data *new_kd = NULL;
timeout = 1000; // once it started, it shouldn't take a long time
if (i && line[0] == ' ') {
for (j = 0; j < strlen(line); j++) if (line[j] != ' ') break;
dsize += strlen(line + j);
new_kd->data = g_realloc(new_kd->data, dsize);
strcat(new_kd->data, line + j);
continue;
}
dp = strstr(line, ":");
if (!dp) {
free_kd(*kd);
*kd = NULL;
g_set_error_literal(error_r, rtsp_client_quark(), 0,
"request failed, bad header");
return false;
}
*dp = 0;
new_kd = g_new(struct key_data, 1);
new_kd->key = g_strdup(line);
dsize = strlen(dp + 1) + 1;
new_kd->data = g_strdup(dp);
new_kd->next = NULL;
if (cur_kd == NULL) {
cur_kd = *kd = new_kd;
} else {
cur_kd->next = new_kd;
cur_kd = new_kd;
}
i++;
}
return true;
}
bool
rtspcl_set_parameter(struct rtspcl_data *rtspcld, const char *parameter,
GError **error_r)
{
return exec_request(rtspcld, "SET_PARAMETER", "text/parameters",
parameter, 1, NULL, &rtspcld->kd, error_r);
}
void
rtspcl_set_useragent(struct rtspcl_data *rtspcld, const char *name)
{
rtspcld->useragent = name;
}
bool
rtspcl_announce_sdp(struct rtspcl_data *rtspcld, const char *sdp,
GError **error_r)
{
return exec_request(rtspcld, "ANNOUNCE", "application/sdp", sdp, 1,
NULL, &rtspcld->kd, error_r);
}
bool
rtspcl_setup(struct rtspcl_data *rtspcld, struct key_data **kd,
int control_port, int ntp_port,
GError **error_r)
{
struct key_data *rkd = NULL, hds;
const char delimiters[] = ";";
char *buf = NULL;
char *token, *pc;
int rval = false;
static char transport_key[] = "Transport";
char transport_value[256];
snprintf(transport_value, sizeof(transport_value),
"RTP/AVP/UDP;unicast;interleaved=0-1;mode=record;control_port=%d;timing_port=%d",
control_port, ntp_port);
hds.key = transport_key;
hds.data = transport_value;
hds.next = NULL;
if (!exec_request(rtspcld, "SETUP", NULL, NULL, 1,
&hds, &rkd, error_r))
return false;
if (!(rtspcld->session = g_strdup(kd_lookup(rkd, "Session")))) {
g_set_error_literal(error_r, rtsp_client_quark(), 0,
"no session in response");
goto erexit;
}
if (!(rtspcld->transport = kd_lookup(rkd, "Transport"))) {
g_set_error_literal(error_r, rtsp_client_quark(), 0,
"no transport in response");
goto erexit;
}
buf = g_strdup(rtspcld->transport);
token = strtok(buf, delimiters);
rtspcld->server_port = 0;
rtspcld->control_port = 0;
while (token) {
if ((pc = strstr(token, "="))) {
*pc = 0;
if (!strcmp(token,"server_port")) {
rtspcld->server_port=atoi(pc + 1);
}
if (!strcmp(token,"control_port")) {
rtspcld->control_port=atoi(pc + 1);
}
}
token = strtok(NULL, delimiters);
}
if (rtspcld->server_port == 0) {
g_set_error_literal(error_r, rtsp_client_quark(), 0,
"no server_port in response");
goto erexit;
}
if (rtspcld->control_port == 0) {
g_set_error_literal(error_r, rtsp_client_quark(), 0,
"no control_port in response");
goto erexit;
}
rval = true;
erexit:
g_free(buf);
if (!rval) {
free_kd(rkd);
rkd = NULL;
}
*kd = rkd;
return rval;
}
bool
rtspcl_record(struct rtspcl_data *rtspcld,
int seq_num, int rtptime,
GError **error_r)
{
if (!rtspcld->session) {
g_set_error_literal(error_r, rtsp_client_quark(), 0,
"no session in progress");
return false;
}
char buf[128];
sprintf(buf, "seq=%d,rtptime=%u", seq_num, rtptime);
struct key_data rtp;
static char rtp_key[] = "RTP-Info";
rtp.key = rtp_key;
rtp.data = buf;
rtp.next = NULL;
struct key_data range;
static char range_key[] = "Range";
range.key = range_key;
static char range_value[] = "npt=0-";
range.data = range_value;
range.next = &rtp;
return exec_request(rtspcld, "RECORD", NULL, NULL, 1, &range,
&rtspcld->kd, error_r);
}
char *
rtspcl_local_ip(struct rtspcl_data *rtspcld)
{
return inet_ntoa(rtspcld->local_addr);
}
src/rtsp_client.h 0 → 100644
View file @ 19549633
/*
* Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* Based on the RTSP client by Shiro Ninomiya <shiron@snino.com>
*/
#ifndef MPD_RTSP_CLIENT_H
#define MPD_RTSP_CLIENT_H
#include <stdbool.h>
#include <glib.h>
#ifdef WIN32
#define WINVER 0x0501
#include <ws2tcpip.h>
#include <winsock.h>
#else
#include <netinet/in.h>
#endif
struct key_data {
char *key;
char *data;
struct key_data *next;
};
struct rtspcl_data {
int fd;
char url[128];
int cseq;
struct key_data *kd;
struct key_data *exthds;
char *session;
char *transport;
unsigned short server_port;
unsigned short control_port;
struct in_addr host_addr;
struct in_addr local_addr;
const char *useragent;
};
/**
* The quark used for GError.domain.
*/
static inline GQuark
rtsp_client_quark(void)
{
return g_quark_from_static_string("rtsp_client");
}
void
free_kd(struct key_data *kd);
char *
kd_lookup(struct key_data *kd, const char *key);
G_GNUC_MALLOC
struct rtspcl_data *
rtspcl_open(void);
bool
rtspcl_connect(struct rtspcl_data *rtspcld, const char *host, short destport,
const char *sid, GError **error_r);
void
rtspcl_close(struct rtspcl_data *rtspcld);
void
rtspcl_add_exthds(struct rtspcl_data *rtspcld, const char *key, char *data);
bool
exec_request(struct rtspcl_data *rtspcld, const char *cmd,
const char *content_type, const char *content,
int get_response,
const struct key_data *hds, struct key_data **kd,
GError **error_r);
bool
rtspcl_set_parameter(struct rtspcl_data *rtspcld, const char *parameter,
GError **error_r);
void
rtspcl_set_useragent(struct rtspcl_data *rtspcld, const char *name);
bool
rtspcl_announce_sdp(struct rtspcl_data *rtspcld, const char *sdp,
GError **error_r);
bool
rtspcl_setup(struct rtspcl_data *rtspcld, struct key_data **kd,
int control_port, int ntp_port,
GError **error_r);
bool
rtspcl_record(struct rtspcl_data *rtspcld,
int seq_num, int rtptime,
GError **error_r);
char *
rtspcl_local_ip(struct rtspcl_data *rtspcld);
#endif
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