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 || kd == NULL) {
free_kd(rkd);
rkd = NULL;
}
if (kd != NULL)
*kd = rkd;
return rval;
}
int raopcl_connect(raopcl_t *p, char *host,u_int16_t destport)
{
u_int8_t buf[4+8+16];
char sid[16];
char sci[24];
char *sac=NULL,*key=NULL,*iv=NULL;
char sdp[1024];
int rval=-1;
key_data_t *setup_kd=NULL;
char *aj, *token, *pc;
const char delimiters[] = ";";
u_int8_t rsakey[512];
int i;
raopcl_data_t *raopcld;
if(!p) return -1;
raopcld=(raopcl_data_t *)p;
RAND_bytes(buf, sizeof(buf));
sprintf(sid, "%d", *((u_int32_t*)buf));
sprintf(sci, "%08x%08x",*((u_int32_t*)(buf+4)),*((u_int32_t*)(buf+8)));
base64_encode(buf+12,16,&sac);
if(!(raopcld->rtspcl=rtspcl_open())) goto erexit;
if(rtspcl_set_useragent(raopcld->rtspcl,"iTunes/4.6 (Macintosh; U; PPC Mac OS X 10.3)")) goto erexit;
if(rtspcl_add_exthds(raopcld->rtspcl,"Client-Instance", sci)) goto erexit;
if(rtspcl_connect(raopcld->rtspcl, host, destport, sid)) goto erexit;
i=rsa_encrypt(raopcld->key,16,rsakey);
base64_encode(rsakey,i,&key);
remove_char_from_string(key,'=');
base64_encode(raopcld->iv,16,&iv);
remove_char_from_string(iv,'=');
sprintf(sdp,
"v=0\r\n"
"o=iTunes %s 0 IN IP4 %s\r\n"
"s=iTunes\r\n"
"c=IN IP4 %s\r\n"
"t=0 0\r\n"
"m=audio 0 RTP/AVP 96\r\n"
"a=rtpmap:96 AppleLossless\r\n"
"a=fmtp:96 4096 0 16 40 10 14 2 255 0 0 44100\r\n"
"a=rsaaeskey:%s\r\n"
"a=aesiv:%s\r\n",
sid, rtspcl_local_ip(raopcld->rtspcl), host, key, iv);
remove_char_from_string(sac,'=');
if(rtspcl_add_exthds(raopcld->rtspcl, "Apple-Challenge", sac)) goto erexit;
if(rtspcl_annouce_sdp(raopcld->rtspcl, sdp)) goto erexit;
if(rtspcl_mark_del_exthds(raopcld->rtspcl, "Apple-Challenge")) goto erexit;
if(rtspcl_setup(raopcld->rtspcl, &setup_kd)) goto erexit;
if(!(aj=kd_lookup(setup_kd,"Audio-Jack-Status"))) {
ERRMSG("%s: Audio-Jack-Status is missing\n",__func__);
goto erexit;
}
token=strtok(aj,delimiters);
while(token){
if((pc=strstr(token,"="))){
*pc=0;
if(!strcmp(token,"type") && !strcmp(pc+1,"digital")){
raopcld->ajtype=JACK_TYPE_DIGITAL;
}
}else{
if(!strcmp(token,"connected")){
raopcld->ajstatus=JACK_STATUS_CONNECTED;
}
}
token=strtok(NULL,delimiters);
}
if(rtspcl_record(raopcld->rtspcl)) goto erexit;
// keep host address and port information
if(realloc_memory((void**)&raopcld->addr,strlen(host)+1,__func__)) goto erexit;
strcpy(raopcld->addr,host);
raopcld->rtsp_port=destport;
if(raopcl_stream_connect(raopcld)) goto erexit;
rval=0;
erexit:
if(sac) free(sac);
if(key) free(key);
if(iv) free(iv);
free_kd(setup_kd);
return rval;
}
int rtspcl_setup(rtspcl_t *p, key_data_t **kd)
{
key_data_t *rkd=NULL;
key_data_t hds[2];
const char delimiters[] = ";";
char *buf=NULL;
char *token,*pc;
char *temp;
int rval=-1;
rtspcl_data_t *rtspcld;
if(!p) return -1;
rtspcld=(rtspcl_data_t *)p;
hds[0].key=(uint8_t*)"Transport";
hds[0].data=(uint8_t*)"RTP/AVP/UDP;unicast;interleaved=0-1;mode=record;control_port=6001;timing_port=6002";
hds[1].key=NULL;
if(exec_request(rtspcld, "SETUP", NULL, NULL, 0, 1, hds, &rkd, NULL)) return -1;
if(!(temp=kd_lookup(rkd, "Session"))){
ERRMSG("%s: no session in response\n",__func__);
goto erexit;
}
DBGMSG("<------- : %s: session:%s\n",__func__,temp);
rtspcld->session = (char *) malloc(100);
sprintf( rtspcld->session, "%s", trim(temp) );
if(!(rtspcld->transport=kd_lookup(rkd, "Transport"))){
ERRMSG("%s: no transport in responce\n",__func__);
goto erexit;
}
if(realloc_memory((void*)&buf,strlen(rtspcld->transport)+1,__func__)) goto erexit;
strcpy(buf,rtspcld->transport);
token=strtok(buf,delimiters);
rtspcld->server_port=0;
while(token)
{
if((pc=strstr(token,"=")))
{
*pc=0;
if(!strcmp(token,"server_port"))
{
rtspcld->server_port=atoi(pc+1);
DBGMSG( "got server port : %d\n", rtspcld->server_port );
}
if(!strcmp(token,"control_port"))
{
rtspcld->control_port=atoi(pc+1);
DBGMSG( "got control port : %d\n", rtspcld->control_port );
}
if(!strcmp(token,"timing_port"))
{
rtspcld->timing_port=atoi(pc+1);
DBGMSG( "got timing port : %d\n", rtspcld->timing_port );
}
}
token=strtok(NULL,delimiters);
}
if(rtspcld->server_port==0){
ERRMSG("%s: no server_port in response\n",__func__);
goto erexit;
}
rval=0;
erexit:
if(buf) free(buf);
if(rval) {
free_kd(rkd);
rkd=NULL;
}
*kd=rkd;
return rval;
}
