static void test_session_description(void) {
const char* l_src = big_sdp;
belle_sdp_origin_t* l_origin;
belle_sdp_session_description_t* lTmp;
belle_sip_list_t* media_descriptions;
belle_sdp_session_description_t* l_session_description = belle_sdp_session_description_parse(l_src);
char* l_raw_session_description = belle_sip_object_to_string(BELLE_SIP_OBJECT(l_session_description));
belle_sip_object_unref(BELLE_SIP_OBJECT(l_session_description));
lTmp = belle_sdp_session_description_parse(l_raw_session_description);
belle_sip_free(l_raw_session_description);
l_session_description = BELLE_SDP_SESSION_DESCRIPTION(belle_sip_object_clone(BELLE_SIP_OBJECT(lTmp)));
belle_sip_object_unref(BELLE_SIP_OBJECT(lTmp));
CU_ASSERT_PTR_NOT_NULL(belle_sdp_session_description_get_version(l_session_description));
CU_ASSERT_EQUAL(belle_sdp_version_get_version(belle_sdp_session_description_get_version(l_session_description)),0);
l_origin = belle_sdp_session_description_get_origin(l_session_description);
CU_ASSERT_PTR_NOT_NULL(l_origin);
CU_ASSERT_STRING_EQUAL(belle_sdp_origin_get_address(l_origin),"2a01:e35:1387:1020:6233:4bff:fe0b:5663")
CU_ASSERT_STRING_EQUAL(belle_sdp_origin_get_address_type(l_origin),"IP6")
CU_ASSERT_STRING_EQUAL(belle_sdp_origin_get_network_type(l_origin),"IN")
CU_ASSERT_EQUAL(belle_sdp_origin_get_session_id(l_origin),1239)
CU_ASSERT_EQUAL(belle_sdp_origin_get_session_version(l_origin),1239)
CU_ASSERT_PTR_NOT_NULL(belle_sdp_session_description_get_session_name(l_session_description));
CU_ASSERT_STRING_EQUAL(belle_sdp_session_name_get_value(belle_sdp_session_description_get_session_name(l_session_description)),"SIP Talk");
CU_ASSERT_PTR_NOT_NULL(belle_sdp_session_description_get_connection(l_session_description));
CU_ASSERT_PTR_NOT_NULL(belle_sdp_session_description_get_time_descriptions(l_session_description));
CU_ASSERT_EQUAL(belle_sdp_time_get_start(belle_sdp_time_description_get_time((belle_sdp_time_description_t*)(belle_sdp_session_description_get_time_descriptions(l_session_description)->data))),0);
CU_ASSERT_EQUAL(belle_sdp_time_get_stop(belle_sdp_time_description_get_time((belle_sdp_time_description_t*)(belle_sdp_session_description_get_time_descriptions(l_session_description)->data))),0);
media_descriptions = belle_sdp_session_description_get_media_descriptions(l_session_description);
CU_ASSERT_PTR_NOT_NULL(media_descriptions);
CU_ASSERT_STRING_EQUAL (belle_sdp_media_get_media_type(belle_sdp_media_description_get_media((belle_sdp_media_description_t*)(media_descriptions->data))),"audio");
media_descriptions=media_descriptions->next;
CU_ASSERT_PTR_NOT_NULL(media_descriptions);
test_media_description_base((belle_sdp_media_description_t*)(media_descriptions->data));
belle_sip_object_unref(l_session_description);
return;
}
static void test_media_description_base(belle_sdp_media_description_t* media_description) {
const char* attr[] ={"99 MP4V-ES/90000"
,"99 profile-level-id=3"
,"97 theora/90000"
,"98 H263-1998/90000"
,"98 CIF=1;QCIF=1"};
belle_sdp_connection_t* lConnection;
belle_sdp_media_description_t* l_media_description=media_description;
belle_sdp_media_t* l_media = belle_sdp_media_description_get_media(l_media_description);
belle_sip_list_t* list;
int fmt[] ={99,97,98};
int i=0;
CU_ASSERT_PTR_NOT_NULL(l_media);
CU_ASSERT_STRING_EQUAL(belle_sdp_media_get_media_type(l_media), "video");
CU_ASSERT_EQUAL(belle_sdp_media_get_media_port(l_media), 8078);
CU_ASSERT_STRING_EQUAL(belle_sdp_media_get_protocol(l_media), "RTP/AVP");
list = belle_sdp_media_get_media_formats(l_media);
CU_ASSERT_PTR_NOT_NULL(list);
for(;list!=NULL;list=list->next){
CU_ASSERT_EQUAL(BELLE_SIP_POINTER_TO_INT(list->data),fmt[i++]);
}
/*connection*/
lConnection = belle_sdp_media_description_get_connection(l_media_description);
CU_ASSERT_STRING_EQUAL(belle_sdp_connection_get_address(lConnection), "192.168.0.18");
CU_ASSERT_STRING_EQUAL(belle_sdp_connection_get_address_type(lConnection), "IP4");
CU_ASSERT_STRING_EQUAL(belle_sdp_connection_get_network_type(lConnection), "IN");
/*bandwidth*/
CU_ASSERT_EQUAL(belle_sdp_media_description_get_bandwidth(l_media_description,"AS"),380);
/*attributes*/
list = belle_sdp_media_description_get_attributes(l_media_description);
CU_ASSERT_PTR_NOT_NULL(list);
i=0;
for(;list!=NULL;list=list->next){
CU_ASSERT_STRING_EQUAL(belle_sdp_attribute_get_value((belle_sdp_attribute_t*)(list->data)),attr[i++]);
}
}
static void stream_description_to_sdp ( belle_sdp_session_description_t *session_desc, const SalMediaDescription *md, const SalStreamDescription *stream ) {
belle_sdp_mime_parameter_t* mime_param;
belle_sdp_media_description_t* media_desc;
int j;
MSList* pt_it;
PayloadType* pt;
char buffer[1024];
char* dir=NULL;
const char *rtp_addr;
const char *rtcp_addr;
int rtp_port;
int rtcp_port;
bool_t different_rtp_and_rtcp_addr;
rtp_addr=stream->rtp_addr;
rtcp_addr=stream->rtcp_addr;
rtp_port=stream->rtp_port;
rtcp_port=stream->rtcp_port;
media_desc = belle_sdp_media_description_create ( sal_stream_description_get_type_as_string(stream)
,stream->rtp_port
,1
,sal_media_proto_to_string ( stream->proto )
,NULL );
if (stream->payloads) {
for ( pt_it=stream->payloads; pt_it!=NULL; pt_it=pt_it->next ) {
pt= ( PayloadType* ) pt_it->data;
mime_param= belle_sdp_mime_parameter_create ( pt->mime_type
, payload_type_get_number ( pt )
, pt->clock_rate
,stream->type==SalAudio?1:-1 );
belle_sdp_mime_parameter_set_parameters ( mime_param,pt->recv_fmtp );
if ( stream->ptime>0 ) {
belle_sdp_mime_parameter_set_ptime ( mime_param,stream->ptime );
}
belle_sdp_media_description_append_values_from_mime_parameter ( media_desc,mime_param );
belle_sip_object_unref ( mime_param );
}
} else {
/* to comply with SDP we cannot have an empty payload type number list */
/* as it happens only when mline is declined with a zero port, it does not matter to put whatever codec*/
belle_sip_list_t* format = belle_sip_list_append(NULL,0);
belle_sdp_media_set_media_formats(belle_sdp_media_description_get_media(media_desc),format);
}
/*only add a c= line within the stream description if address are differents*/
if (rtp_addr[0]!='\0' && strcmp(rtp_addr,md->addr)!=0){
bool_t inet6;
if (strchr(rtp_addr,':')!=NULL){
inet6=TRUE;
}else inet6=FALSE;
belle_sdp_media_description_set_connection(media_desc,belle_sdp_connection_create("IN", inet6 ? "IP6" : "IP4", rtp_addr));
}
if ( stream->bandwidth>0 )
belle_sdp_media_description_set_bandwidth ( media_desc,"AS",stream->bandwidth );
if ( stream->proto == SalProtoRtpSavp ) {
/* add crypto lines */
for ( j=0; j<SAL_CRYPTO_ALGO_MAX; j++ ) {
switch ( stream->crypto[j].algo ) {
case AES_128_SHA1_80:
snprintf ( buffer, sizeof ( buffer ), "%d %s inline:%s",
stream->crypto[j].tag, "AES_CM_128_HMAC_SHA1_80", stream->crypto[j].master_key );
belle_sdp_media_description_add_attribute ( media_desc,belle_sdp_attribute_create ( "crypto",buffer ) );
break;
case AES_128_SHA1_32:
snprintf ( buffer, sizeof ( buffer ), "%d %s inline:%s",
stream->crypto[j].tag, "AES_CM_128_HMAC_SHA1_32", stream->crypto[j].master_key );
belle_sdp_media_description_add_attribute ( media_desc,belle_sdp_attribute_create ( "crypto",buffer ) );
break;
case AES_128_NO_AUTH:
ms_warning ( "Unsupported crypto suite: AES_128_NO_AUTH" );
break;
case NO_CIPHER_SHA1_80:
ms_warning ( "Unsupported crypto suite: NO_CIPHER_SHA1_80" );
break;
default:
j = SAL_CRYPTO_ALGO_MAX;
/* no break */
}
}
}
switch ( stream->dir ) {
case SalStreamSendRecv:
/*dir="sendrecv";*/
dir=NULL;
break;
case SalStreamRecvOnly:
dir="recvonly";
break;
case SalStreamSendOnly:
dir="sendonly";
break;
case SalStreamInactive:
dir="inactive";
break;
}
if ( dir ) belle_sdp_media_description_add_attribute ( media_desc,belle_sdp_attribute_create ( dir,NULL ) );
if (rtp_port != 0) {
different_rtp_and_rtcp_addr = (rtcp_addr[0] != '\0') && (strcmp(rtp_addr, rtcp_addr) != 0);
if ((rtcp_port != (rtp_port + 1)) || (different_rtp_and_rtcp_addr == TRUE)) {
if (different_rtp_and_rtcp_addr == TRUE) {
snprintf(buffer, sizeof(buffer), "%u IN IP4 %s", rtcp_port, rtcp_addr);
} else {
snprintf(buffer, sizeof(buffer), "%u",rtcp_port);
}
belle_sdp_media_description_add_attribute(media_desc,belle_sdp_attribute_create ("rtcp",buffer));
}
}
if (stream->ice_completed == TRUE) {
belle_sdp_media_description_add_attribute(media_desc,belle_sdp_attribute_create ("nortpproxy","yes"));
}
if (stream->ice_mismatch == TRUE) {
belle_sdp_media_description_add_attribute(media_desc,belle_sdp_attribute_create ("ice-mismatch",NULL));
} else {
if (rtp_port != 0) {
if (stream->ice_pwd[0] != '\0')
belle_sdp_media_description_add_attribute(media_desc,belle_sdp_attribute_create ("ice-pwd",stream->ice_pwd));
if (stream->ice_ufrag[0] != '\0')
belle_sdp_media_description_add_attribute(media_desc,belle_sdp_attribute_create ("ice-ufrag",stream->ice_ufrag));
add_ice_candidates(media_desc,stream);
add_ice_remote_candidates(media_desc,stream);
}
}
if (stream->rtcp_xr.enabled == TRUE) {
char sastr[1024] = {0};
char mastr[1024] = {0};
size_t saoff = 0;
size_t maoff = 0;
const belle_sdp_attribute_t *session_attribute = belle_sdp_session_description_get_attribute(session_desc, "rtcp-xr");
belle_sdp_attribute_t *media_attribute;
if (session_attribute != NULL) {
belle_sip_object_marshal((belle_sip_object_t*)session_attribute, sastr, sizeof(sastr), &saoff);
}
media_attribute = create_rtcp_xr_attribute(&stream->rtcp_xr);
if (media_attribute != NULL) {
belle_sip_object_marshal((belle_sip_object_t*)media_attribute, mastr, sizeof(mastr), &maoff);
}
if (strcmp(sastr, mastr) != 0) {
belle_sdp_media_description_add_attribute(media_desc, media_attribute);
} else {
belle_sip_object_unref((belle_sip_object_t*)media_attribute);
}
}
belle_sdp_session_description_add_media_description(session_desc, media_desc);
}
static SalStreamDescription * sdp_to_stream_description(SalMediaDescription *md, belle_sdp_media_description_t *media_desc) {
SalStreamDescription *stream;
belle_sdp_connection_t* cnx;
belle_sdp_media_t* media;
belle_sdp_attribute_t* attribute;
const char* value;
const char *mtype,*proto;
stream=&md->streams[md->n_total_streams];
media=belle_sdp_media_description_get_media ( media_desc );
memset ( stream,0,sizeof ( *stream ) );
proto = belle_sdp_media_get_protocol ( media );
stream->proto=SalProtoOther;
if ( proto ) {
if ( strcasecmp ( proto,"RTP/AVP" ) ==0 )
stream->proto=SalProtoRtpAvp;
else if ( strcasecmp ( proto,"RTP/SAVP" ) ==0 ) {
stream->proto=SalProtoRtpSavp;
}else{
strncpy(stream->proto_other,proto,sizeof(stream->proto_other)-1);
}
}
if ( ( cnx=belle_sdp_media_description_get_connection ( media_desc ) ) && belle_sdp_connection_get_address ( cnx ) ) {
strncpy ( stream->rtp_addr,belle_sdp_connection_get_address ( cnx ), sizeof ( stream->rtp_addr ) -1 );
}
stream->rtp_port=belle_sdp_media_get_media_port ( media );
if ( stream->rtp_port > 0 )
md->n_active_streams++;
mtype = belle_sdp_media_get_media_type ( media );
if ( strcasecmp ( "audio", mtype ) == 0 ) {
stream->type=SalAudio;
} else if ( strcasecmp ( "video", mtype ) == 0 ) {
stream->type=SalVideo;
} else {
stream->type=SalOther;
strncpy ( stream->typeother,mtype,sizeof ( stream->typeother )-1 );
}
if ( belle_sdp_media_description_get_bandwidth ( media_desc,"AS" ) >0 ) {
stream->bandwidth=belle_sdp_media_description_get_bandwidth ( media_desc,"AS" );
}
if ( belle_sdp_media_description_get_attribute ( media_desc,"sendrecv" ) ) {
stream->dir=SalStreamSendRecv;
} else if ( belle_sdp_media_description_get_attribute ( media_desc,"sendonly" ) ) {
stream->dir=SalStreamSendOnly;
} else if ( belle_sdp_media_description_get_attribute ( media_desc,"recvonly" ) ) {
stream->dir=SalStreamRecvOnly;
} else if ( belle_sdp_media_description_get_attribute ( media_desc,"inactive" ) ) {
stream->dir=SalStreamInactive;
} else {
stream->dir=md->dir; /*takes default value if not present*/
}
/* Get media payload types */
sdp_parse_payload_types(media_desc, stream);
/* Get media specific RTCP attribute */
stream->rtcp_port = stream->rtp_port + 1;
snprintf(stream->rtcp_addr, sizeof(stream->rtcp_addr), "%s", stream->rtp_addr);
attribute=belle_sdp_media_description_get_attribute(media_desc,"rtcp");
if (attribute && (value=belle_sdp_attribute_get_value(attribute))!=NULL){
char tmp[256];
int nb = sscanf(value, "%d IN IP4 %s", &stream->rtcp_port, tmp);
if (nb == 1) {
/* SDP rtcp attribute only contains the port */
} else if (nb == 2) {
strncpy(stream->rtcp_addr, tmp, sizeof(stream->rtcp_addr)-1);
} else {
ms_warning("sdp has a strange a=rtcp line (%s) nb=%i", value, nb);
}
}
/* Read crypto lines if any */
if ( stream->proto == SalProtoRtpSavp ) {
sdp_parse_media_crypto_parameters(media_desc, stream);
}
/* Get ICE candidate attributes if any */
sdp_parse_media_ice_parameters(media_desc, stream);
/* Get RTCP-XR attributes if any */
stream->rtcp_xr = md->rtcp_xr; // Use session parameters if no stream parameters are defined
sdp_parse_media_rtcp_xr_parameters(media_desc, &stream->rtcp_xr);
md->n_total_streams++;
return stream;
}
static void test_simple_session_description(void) {
const char* l_src = "v=0\r\n"\
"o=jehan-mac 1239 1239 IN IP4 192.168.0.18\r\n"\
"s=Talk\r\n"\
"c=IN IP4 192.168.0.18\r\n"\
"t=0 0\r\n"\
"m=audio 7078 RTP/AVP 111 110 3 0 8 101\r\n"\
"a=rtpmap:111 speex/16000\r\n"\
"a=fmtp:111 vbr=on\r\n"\
"a=rtpmap:110 speex/8000\r\n"\
"a=fmtp:110 vbr=on\r\n"\
"a=rtpmap:101 telephone-event/8000\r\n"\
"a=fmtp:101 0-11\r\n"\
"m=video 8078 RTP/AVP 99 97 98\r\n"\
"c=IN IP4 192.168.0.18\r\n"\
"b=AS:380\r\n"\
"a=rtpmap:99 MP4V-ES/90000\r\n"\
"a=fmtp:99 profile-level-id=3\r\n"\
"a=rtpmap:97 theora/90000\r\n"\
"a=rtpmap:98 H263-1998/90000\r\n"\
"a=fmtp:98 CIF=1;QCIF=1\r\n";
belle_sdp_origin_t* l_origin;
belle_sip_list_t* media_descriptions;
belle_sdp_session_description_t* lTmp;
belle_sdp_session_description_t* l_session_description = belle_sdp_session_description_parse(l_src);
char* l_raw_session_description = belle_sip_object_to_string(BELLE_SIP_OBJECT(l_session_description));
belle_sip_object_unref(BELLE_SIP_OBJECT(l_session_description));
lTmp = belle_sdp_session_description_parse(l_raw_session_description);
belle_sip_free(l_raw_session_description);
l_session_description = BELLE_SDP_SESSION_DESCRIPTION(belle_sip_object_clone(BELLE_SIP_OBJECT(lTmp)));
belle_sip_object_unref(BELLE_SIP_OBJECT(lTmp));
CU_ASSERT_PTR_NOT_NULL(belle_sdp_session_description_get_version(l_session_description));
CU_ASSERT_EQUAL(belle_sdp_version_get_version(belle_sdp_session_description_get_version(l_session_description)),0);
l_origin = belle_sdp_session_description_get_origin(l_session_description);
CU_ASSERT_PTR_NOT_NULL(l_origin);
CU_ASSERT_STRING_EQUAL(belle_sdp_origin_get_address(l_origin),"192.168.0.18")
CU_ASSERT_STRING_EQUAL(belle_sdp_origin_get_address_type(l_origin),"IP4")
CU_ASSERT_STRING_EQUAL(belle_sdp_origin_get_network_type(l_origin),"IN")
CU_ASSERT_EQUAL(belle_sdp_origin_get_session_id(l_origin),1239)
CU_ASSERT_EQUAL(belle_sdp_origin_get_session_version(l_origin),1239)
CU_ASSERT_PTR_NOT_NULL(belle_sdp_session_description_get_session_name(l_session_description));
CU_ASSERT_STRING_EQUAL(belle_sdp_session_name_get_value(belle_sdp_session_description_get_session_name(l_session_description)),"Talk");
CU_ASSERT_PTR_NOT_NULL(belle_sdp_session_description_get_connection(l_session_description));
CU_ASSERT_PTR_NOT_NULL(belle_sdp_session_description_get_time_descriptions(l_session_description));
CU_ASSERT_EQUAL(belle_sdp_time_get_start(belle_sdp_time_description_get_time((belle_sdp_time_description_t*)(belle_sdp_session_description_get_time_descriptions(l_session_description)->data))),0);
CU_ASSERT_EQUAL(belle_sdp_time_get_stop(belle_sdp_time_description_get_time((belle_sdp_time_description_t*)(belle_sdp_session_description_get_time_descriptions(l_session_description)->data))),0);
media_descriptions = belle_sdp_session_description_get_media_descriptions(l_session_description);
CU_ASSERT_PTR_NOT_NULL(media_descriptions);
CU_ASSERT_STRING_EQUAL (belle_sdp_media_get_media_type(belle_sdp_media_description_get_media((belle_sdp_media_description_t*)(media_descriptions->data))),"audio");
media_descriptions=media_descriptions->next;
CU_ASSERT_PTR_NOT_NULL(media_descriptions);
test_media_description_base((belle_sdp_media_description_t*)(media_descriptions->data));
belle_sip_object_unref(l_session_description);
return;
}
static SalStreamDescription * sdp_to_stream_description(SalMediaDescription *md, belle_sdp_media_description_t *media_desc) {
SalStreamDescription *stream;
belle_sdp_connection_t* cnx;
belle_sdp_media_t* media;
belle_sdp_attribute_t* attribute;
const char* value;
const char *mtype,*proto;
stream=&md->streams[md->nb_streams];
media=belle_sdp_media_description_get_media ( media_desc );
proto = belle_sdp_media_get_protocol ( media );
stream->proto=SalProtoOther;
if ( proto ) {
if (strcasecmp(proto, "RTP/AVP") == 0) {
stream->proto = SalProtoRtpAvp;
} else if (strcasecmp(proto, "RTP/SAVP") == 0) {
stream->proto = SalProtoRtpSavp;
} else if (strcasecmp(proto, "RTP/AVPF") == 0) {
stream->proto = SalProtoRtpAvpf;
} else if (strcasecmp(proto, "RTP/SAVPF") == 0) {
stream->proto = SalProtoRtpSavpf;
} else if (strcasecmp(proto, "UDP/TLS/RTP/SAVP") == 0) {
stream->proto = SalProtoUdpTlsRtpSavp;
} else if (strcasecmp(proto, "UDP/TLS/RTP/SAVPF") == 0) {
stream->proto = SalProtoUdpTlsRtpSavpf;
} else {
strncpy(stream->proto_other,proto,sizeof(stream->proto_other)-1);
}
}
if ( ( cnx=belle_sdp_media_description_get_connection ( media_desc ) ) && belle_sdp_connection_get_address ( cnx ) ) {
strncpy ( stream->rtp_addr,belle_sdp_connection_get_address ( cnx ), sizeof ( stream->rtp_addr ) -1 );
stream->ttl=belle_sdp_connection_get_ttl(cnx);
}
stream->rtp_port=belle_sdp_media_get_media_port ( media );
mtype = belle_sdp_media_get_media_type ( media );
if ( strcasecmp ( "audio", mtype ) == 0 ) {
stream->type=SalAudio;
} else if ( strcasecmp ( "video", mtype ) == 0 ) {
stream->type=SalVideo;
} else {
stream->type=SalOther;
strncpy ( stream->typeother,mtype,sizeof ( stream->typeother )-1 );
}
if ( belle_sdp_media_description_get_bandwidth ( media_desc,"AS" ) >0 ) {
stream->bandwidth=belle_sdp_media_description_get_bandwidth ( media_desc,"AS" );
}
if ( belle_sdp_media_description_get_attribute ( media_desc,"sendrecv" ) ) {
stream->dir=SalStreamSendRecv;
} else if ( belle_sdp_media_description_get_attribute ( media_desc,"sendonly" ) ) {
stream->dir=SalStreamSendOnly;
} else if ( belle_sdp_media_description_get_attribute ( media_desc,"recvonly" ) ) {
stream->dir=SalStreamRecvOnly;
} else if ( belle_sdp_media_description_get_attribute ( media_desc,"inactive" ) ) {
stream->dir=SalStreamInactive;
} else {
stream->dir=md->dir; /*takes default value if not present*/
}
/* Get media payload types */
sdp_parse_payload_types(media_desc, stream);
/* Get media specific RTCP attribute */
stream->rtcp_port = stream->rtp_port + 1;
snprintf(stream->rtcp_addr, sizeof(stream->rtcp_addr), "%s", stream->rtp_addr);
attribute=belle_sdp_media_description_get_attribute(media_desc,"rtcp");
if (attribute && (value=belle_sdp_attribute_get_value(attribute))!=NULL){
char tmp[256];
int nb = sscanf(value, "%d IN IP4 %s", &stream->rtcp_port, tmp);
if (nb == 1) {
/* SDP rtcp attribute only contains the port */
} else if (nb == 2) {
strncpy(stream->rtcp_addr, tmp, sizeof(stream->rtcp_addr)-1);
} else {
ms_warning("sdp has a strange a=rtcp line (%s) nb=%i", value, nb);
}
}
/* Read DTLS specific attributes : check is some are found in the stream description otherwise copy the session description one(which are at least set to Invalid) */
if (((stream->proto == SalProtoUdpTlsRtpSavpf) || (stream->proto == SalProtoUdpTlsRtpSavp))) {
attribute=belle_sdp_media_description_get_attribute(media_desc,"setup");
if (attribute && (value=belle_sdp_attribute_get_value(attribute))!=NULL){
if (strncmp(value, "actpass", 7) == 0) {
stream->dtls_role = SalDtlsRoleUnset;
} else if (strncmp(value, "active", 6) == 0) {
stream->dtls_role = SalDtlsRoleIsClient;
} else if (strncmp(value, "passive", 7) == 0) {
stream->dtls_role = SalDtlsRoleIsServer;
}
}
if (stream->dtls_role != SalDtlsRoleInvalid && (attribute=belle_sdp_media_description_get_attribute(media_desc,"fingerprint"))) {
strncpy(stream->dtls_fingerprint, belle_sdp_attribute_get_value(attribute),sizeof(stream->dtls_fingerprint));
}
}
/* Read crypto lines if any */
if ((stream->proto == SalProtoRtpSavpf) || (stream->proto == SalProtoRtpSavp)) {
sdp_parse_media_crypto_parameters(media_desc, stream);
}
/* Get ICE candidate attributes if any */
sdp_parse_media_ice_parameters(media_desc, stream);
/* Get RTCP-FB attributes if any */
if ((stream->proto == SalProtoRtpAvpf) || (stream->proto == SalProtoRtpSavpf)) {
enable_avpf_for_stream(stream);
sdp_parse_rtcp_fb_parameters(media_desc, stream);
}
/* Get RTCP-XR attributes if any */
stream->rtcp_xr = md->rtcp_xr; // Use session parameters if no stream parameters are defined
sdp_parse_media_rtcp_xr_parameters(media_desc, &stream->rtcp_xr);
md->nb_streams++;
return stream;
}
static void stream_description_to_sdp ( belle_sdp_session_description_t *session_desc, const SalMediaDescription *md, const SalStreamDescription *stream ) {
belle_sdp_mime_parameter_t* mime_param;
belle_sdp_media_description_t* media_desc;
int j;
MSList* pt_it;
PayloadType* pt;
char buffer[1024];
char* dir=NULL;
const char *rtp_addr;
const char *rtcp_addr;
int rtp_port;
int rtcp_port;
bool_t different_rtp_and_rtcp_addr;
rtp_addr=stream->rtp_addr;
rtcp_addr=stream->rtcp_addr;
rtp_port=stream->rtp_port;
rtcp_port=stream->rtcp_port;
media_desc = belle_sdp_media_description_create ( sal_stream_description_get_type_as_string(stream)
,stream->rtp_port
,1
,sal_media_proto_to_string ( stream->proto )
,NULL );
if (stream->payloads) {
for ( pt_it=stream->payloads; pt_it!=NULL; pt_it=pt_it->next ) {
pt= ( PayloadType* ) pt_it->data;
mime_param= belle_sdp_mime_parameter_create ( pt->mime_type
, payload_type_get_number ( pt )
, pt->clock_rate
, pt->channels>0 ? pt->channels : -1 );
belle_sdp_mime_parameter_set_parameters ( mime_param,pt->recv_fmtp );
if ( stream->ptime>0 ) {
belle_sdp_mime_parameter_set_ptime ( mime_param,stream->ptime );
}
belle_sdp_media_description_append_values_from_mime_parameter ( media_desc,mime_param );
belle_sip_object_unref ( mime_param );
}
} else {
/* to comply with SDP we cannot have an empty payload type number list */
/* as it happens only when mline is declined with a zero port, it does not matter to put whatever codec*/
belle_sip_list_t* format = belle_sip_list_append(NULL,0);
belle_sdp_media_set_media_formats(belle_sdp_media_description_get_media(media_desc),format);
}
/*only add a c= line within the stream description if address are differents*/
if (rtp_addr[0]!='\0' && strcmp(rtp_addr,md->addr)!=0){
bool_t inet6;
belle_sdp_connection_t *connection;
if (strchr(rtp_addr,':')!=NULL){
inet6=TRUE;
}else inet6=FALSE;
connection = belle_sdp_connection_create("IN", inet6 ? "IP6" : "IP4", rtp_addr);
if (ms_is_multicast(rtp_addr)) {
/*remove session cline in case of multicast*/
belle_sdp_session_description_set_connection(session_desc,NULL);
if (inet6 == FALSE)
belle_sdp_connection_set_ttl(connection,stream->ttl);
}
belle_sdp_media_description_set_connection(media_desc,connection);
}
if ( stream->bandwidth>0 )
belle_sdp_media_description_set_bandwidth ( media_desc,"AS",stream->bandwidth );
if ((stream->proto == SalProtoRtpSavpf) || (stream->proto == SalProtoRtpSavp)) {
/* add crypto lines */
for ( j=0; j<SAL_CRYPTO_ALGO_MAX; j++ ) {
MSCryptoSuiteNameParams desc;
if (ms_crypto_suite_to_name_params(stream->crypto[j].algo,&desc)==0){
if (desc.params)
snprintf ( buffer, sizeof ( buffer )-1, "%d %s inline:%s %s", stream->crypto[j].tag, desc.name, stream->crypto[j].master_key,desc.params);
else
snprintf ( buffer, sizeof ( buffer )-1, "%d %s inline:%s", stream->crypto[j].tag, desc.name, stream->crypto[j].master_key );
belle_sdp_media_description_add_attribute( media_desc,belle_sdp_attribute_create ("crypto", buffer));
}else break;
}
}
/* insert DTLS session attribute if needed */
if ((stream->proto == SalProtoUdpTlsRtpSavpf) || (stream->proto == SalProtoUdpTlsRtpSavp)) {
char* ssrc_attribute = ms_strdup_printf("%u cname:%s",htonl(stream->rtp_ssrc),stream->rtcp_cname);
if ((stream->dtls_role != SalDtlsRoleInvalid) && (strlen(stream->dtls_fingerprint)>0)) {
switch(stream->dtls_role) {
case SalDtlsRoleIsClient:
belle_sdp_media_description_add_attribute(media_desc, belle_sdp_attribute_create("setup","active"));
break;
case SalDtlsRoleIsServer:
belle_sdp_media_description_add_attribute(media_desc, belle_sdp_attribute_create("setup","passive"));
break;
case SalDtlsRoleUnset:
default:
belle_sdp_media_description_add_attribute(media_desc, belle_sdp_attribute_create("setup","actpass"));
break;
}
belle_sdp_media_description_add_attribute(media_desc, belle_sdp_attribute_create("fingerprint",stream->dtls_fingerprint));
}
belle_sdp_media_description_add_attribute(media_desc, belle_sdp_attribute_create("ssrc",ssrc_attribute)); /* truc de Jehan a virer? */
ms_free(ssrc_attribute);
}
switch ( stream->dir ) {
case SalStreamSendRecv:
/*dir="sendrecv";*/
dir=NULL;
break;
case SalStreamRecvOnly:
dir="recvonly";
break;
case SalStreamSendOnly:
dir="sendonly";
break;
case SalStreamInactive:
dir="inactive";
break;
}
if ( dir ) belle_sdp_media_description_add_attribute ( media_desc,belle_sdp_attribute_create ( dir,NULL ) );
if (rtp_port != 0) {
different_rtp_and_rtcp_addr = (rtcp_addr[0] != '\0') && (strcmp(rtp_addr, rtcp_addr) != 0);
if ((rtcp_port != (rtp_port + 1)) || (different_rtp_and_rtcp_addr == TRUE)) {
if (different_rtp_and_rtcp_addr == TRUE) {
snprintf(buffer, sizeof(buffer), "%u IN IP4 %s", rtcp_port, rtcp_addr);
} else {
snprintf(buffer, sizeof(buffer), "%u",rtcp_port);
}
belle_sdp_media_description_add_attribute(media_desc,belle_sdp_attribute_create ("rtcp",buffer));
}
}
if (stream->ice_completed == TRUE) {
belle_sdp_media_description_add_attribute(media_desc,belle_sdp_attribute_create ("nortpproxy","yes"));
}
if (stream->ice_mismatch == TRUE) {
belle_sdp_media_description_add_attribute(media_desc,belle_sdp_attribute_create ("ice-mismatch",NULL));
} else {
if (rtp_port != 0) {
if (stream->ice_pwd[0] != '\0')
belle_sdp_media_description_add_attribute(media_desc,belle_sdp_attribute_create ("ice-pwd",stream->ice_pwd));
if (stream->ice_ufrag[0] != '\0')
belle_sdp_media_description_add_attribute(media_desc,belle_sdp_attribute_create ("ice-ufrag",stream->ice_ufrag));
add_ice_candidates(media_desc,stream);
add_ice_remote_candidates(media_desc,stream);
}
}
if ((rtp_port != 0) && ((stream->proto == SalProtoRtpAvpf) || (stream->proto == SalProtoRtpSavpf))) {
add_rtcp_fb_attributes(media_desc, md, stream);
}
if ((rtp_port != 0) && (stream->rtcp_xr.enabled == TRUE)) {
char sastr[1024] = {0};
char mastr[1024] = {0};
size_t saoff = 0;
size_t maoff = 0;
const belle_sdp_attribute_t *session_attribute = belle_sdp_session_description_get_attribute(session_desc, "rtcp-xr");
belle_sdp_attribute_t *media_attribute;
if (session_attribute != NULL) {
belle_sip_object_marshal((belle_sip_object_t*)session_attribute, sastr, sizeof(sastr), &saoff);
}
media_attribute = create_rtcp_xr_attribute(&stream->rtcp_xr);
if (media_attribute != NULL) {
belle_sip_object_marshal((belle_sip_object_t*)media_attribute, mastr, sizeof(mastr), &maoff);
}
if (strcmp(sastr, mastr) != 0) {
belle_sdp_media_description_add_attribute(media_desc, media_attribute);
} else {
belle_sip_object_unref((belle_sip_object_t*)media_attribute);
}
}
/*
* rfc5576
* 4.1. The "ssrc" Media Attribute
* <ssrc-id> is the synchronization source (SSRC) ID of the
* source being described, interpreted as a 32-bit unsigned integer in
* network byte order and represented in decimal.*/
belle_sdp_session_description_add_media_description(session_desc, media_desc);
}
int sdp_to_media_description ( belle_sdp_session_description_t *session_desc, SalMediaDescription *desc ) {
/*
typedef struct SalMediaDescription{
int refcount;
char addr[64];
char username[64];
int nstreams;
int bandwidth;
unsigned int session_ver;
unsigned int session_id;
SalStreamDescription streams[SAL_MEDIA_DESCRIPTION_MAX_STREAMS];
} SalMediaDescription;
*/
belle_sdp_connection_t* cnx;
belle_sip_list_t* media_desc_it;
belle_sdp_media_description_t* media_desc;
const char *mtype,*proto;
SalStreamDescription *stream;
belle_sdp_media_t* media;
belle_sip_list_t* mime_params=NULL;
belle_sip_list_t* mime_param_it=NULL;
belle_sdp_mime_parameter_t* mime_param;
PayloadType *pt;
belle_sip_list_t* attribute_it;
const belle_sdp_attribute_t* attribute;
int valid_count = 0;
char tmp[256], tmp2[256];
int nb=0;
SalStreamDir stream_dir=SalStreamSendRecv;
const char* value;
desc->n_active_streams = 0;
desc->n_total_streams = 0;
if ( ( cnx=belle_sdp_session_description_get_connection ( session_desc ) ) && belle_sdp_connection_get_address ( cnx ) ) {
strncpy ( desc->addr,belle_sdp_connection_get_address ( cnx ),sizeof ( desc->addr ) );
}
if ( belle_sdp_session_description_get_bandwidth ( session_desc,"AS" ) >0 ) {
desc->bandwidth=belle_sdp_session_description_get_bandwidth ( session_desc,"AS" );
}
/*in some very rare case, session attribute may set stream dir*/
if ( belle_sdp_session_description_get_attribute ( session_desc,"sendrecv" ) ) {
stream_dir=SalStreamSendRecv;
} else if ( belle_sdp_session_description_get_attribute ( session_desc,"sendonly" ) ) {
stream_dir=SalStreamSendOnly;
} else if ( belle_sdp_session_description_get_attribute ( session_desc,"recvonly" ) ) {
stream_dir=SalStreamRecvOnly;
} else if ( belle_sdp_session_description_get_attribute ( session_desc,"inactive" ) ) {
stream_dir=SalStreamInactive;
}
/* Get ICE remote ufrag and remote pwd, and ice_lite flag */
value=belle_sdp_session_description_get_attribute_value(session_desc,"ice-ufrag");
if (value) strncpy(desc->ice_ufrag, value, sizeof(desc->ice_ufrag));
value=belle_sdp_session_description_get_attribute_value(session_desc,"ice-pwd");
if (value) strncpy(desc->ice_pwd, value, sizeof(desc->ice_pwd));
value=belle_sdp_session_description_get_attribute_value(session_desc,"ice-lite");
if (value) desc->ice_lite = TRUE;
for ( media_desc_it=belle_sdp_session_description_get_media_descriptions ( session_desc )
; media_desc_it!=NULL
; media_desc_it=media_desc_it->next ) {
int nb_ice_candidates=0;
media_desc=BELLE_SDP_MEDIA_DESCRIPTION ( media_desc_it->data );
stream=&desc->streams[desc->n_total_streams];
media=belle_sdp_media_description_get_media ( media_desc );
memset ( stream,0,sizeof ( *stream ) );
proto = belle_sdp_media_get_protocol ( media );
stream->proto=SalProtoUnknown;
if ( proto ) {
if ( strcasecmp ( proto,"RTP/AVP" ) ==0 )
stream->proto=SalProtoRtpAvp;
else if ( strcasecmp ( proto,"RTP/SAVP" ) ==0 ) {
stream->proto=SalProtoRtpSavp;
}
}
if ( ( cnx=belle_sdp_media_description_get_connection ( media_desc ) ) && belle_sdp_connection_get_address ( cnx ) ) {
strncpy ( stream->rtp_addr,belle_sdp_connection_get_address ( cnx ),sizeof ( stream->rtp_addr ) );
}
stream->rtp_port=belle_sdp_media_get_media_port ( media );
if ( stream->rtp_port > 0 )
desc->n_active_streams++;
mtype = belle_sdp_media_get_media_type ( media );
if ( strcasecmp ( "audio", mtype ) == 0 ) {
stream->type=SalAudio;
} else if ( strcasecmp ( "video", mtype ) == 0 ) {
stream->type=SalVideo;
} else {
stream->type=SalOther;
strncpy ( stream->typeother,mtype,sizeof ( stream->typeother )-1 );
}
if ( belle_sdp_media_description_get_bandwidth ( media_desc,"AS" ) >0 ) {
stream->bandwidth=belle_sdp_media_description_get_bandwidth ( media_desc,"AS" );
}
if ( belle_sdp_media_description_get_attribute ( media_desc,"sendrecv" ) ) {
stream->dir=SalStreamSendRecv;
} else if ( belle_sdp_media_description_get_attribute ( media_desc,"sendonly" ) ) {
stream->dir=SalStreamSendOnly;
} else if ( belle_sdp_media_description_get_attribute ( media_desc,"recvonly" ) ) {
stream->dir=SalStreamRecvOnly;
} else if ( belle_sdp_media_description_get_attribute ( media_desc,"inactive" ) ) {
stream->dir=SalStreamInactive;
} else {
stream->dir=stream_dir; /*takes default value if not present*/
}
/* for each payload type */
mime_params=belle_sdp_media_description_build_mime_parameters ( media_desc );
for ( mime_param_it=mime_params
; mime_param_it!=NULL
; mime_param_it=mime_param_it->next ) {
mime_param=BELLE_SDP_MIME_PARAMETER ( mime_param_it->data )
pt=payload_type_new();
payload_type_set_number ( pt,belle_sdp_mime_parameter_get_media_format ( mime_param ) );
pt->clock_rate=belle_sdp_mime_parameter_get_rate ( mime_param );
pt->mime_type=ms_strdup ( belle_sdp_mime_parameter_get_type ( mime_param ) );
pt->channels=belle_sdp_mime_parameter_get_channel_count ( mime_param );
payload_type_set_send_fmtp ( pt,belle_sdp_mime_parameter_get_parameters ( mime_param ) );
stream->payloads=ms_list_append ( stream->payloads,pt );
stream->ptime=belle_sdp_mime_parameter_get_ptime ( mime_param );
ms_message ( "Found payload %s/%i fmtp=%s",pt->mime_type,pt->clock_rate,
pt->send_fmtp ? pt->send_fmtp : "" );
}
if ( mime_params ) belle_sip_list_free_with_data ( mime_params,belle_sip_object_unref );
/* Get media specific RTCP attribute */
stream->rtcp_port = stream->rtp_port + 1;
snprintf(stream->rtcp_addr, sizeof(stream->rtcp_addr), "%s", stream->rtp_addr);
attribute=belle_sdp_media_description_get_attribute(media_desc,"rtcp");
if (attribute && (value=belle_sdp_attribute_get_value(attribute))!=NULL){
char tmp[256];
int nb = sscanf(value, "%d IN IP4 %s", &stream->rtcp_port, tmp);
if (nb == 1) {
/* SDP rtcp attribute only contains the port */
} else if (nb == 2) {
strncpy(stream->rtcp_addr, tmp, sizeof(stream->rtcp_addr));
} else {
ms_warning("sdp has a strange a=rtcp line (%s) nb=%i", value, nb);
}
}
/* read crypto lines if any */
if ( stream->proto == SalProtoRtpSavp ) {
valid_count=0;
memset ( &stream->crypto, 0, sizeof ( stream->crypto ) );
for ( attribute_it=belle_sdp_media_description_get_attributes ( media_desc )
; valid_count < SAL_CRYPTO_ALGO_MAX && attribute_it!=NULL;
attribute_it=attribute_it->next ) {
attribute=BELLE_SDP_ATTRIBUTE ( attribute_it->data );
if ( keywordcmp ( "crypto",belle_sdp_attribute_get_name ( attribute ) ) ==0 && belle_sdp_attribute_get_value ( attribute ) !=NULL ) {
nb = sscanf ( belle_sdp_attribute_get_value ( attribute ), "%d %256s inline:%256s",
&stream->crypto[valid_count].tag,
tmp,
tmp2 );
ms_message ( "Found valid crypto line (tag:%d algo:'%s' key:'%s'",
stream->crypto[valid_count].tag,
tmp,
tmp2 );
if ( nb == 3 ) {
if ( keywordcmp ( "AES_CM_128_HMAC_SHA1_80",tmp ) == 0 )
stream->crypto[valid_count].algo = AES_128_SHA1_80;
else if ( keywordcmp ( "AES_CM_128_HMAC_SHA1_32",tmp ) == 0 )
stream->crypto[valid_count].algo = AES_128_SHA1_32;
else {
ms_warning ( "Failed to parse crypto-algo: '%s'", tmp );
stream->crypto[valid_count].algo = 0;
}
if ( stream->crypto[valid_count].algo ) {
strncpy ( stream->crypto[valid_count].master_key, tmp2, 41 );
stream->crypto[valid_count].master_key[40] = '\0';
ms_message ( "Found valid crypto line (tag:%d algo:'%s' key:'%s'",
stream->crypto[valid_count].tag,
tmp,
stream->crypto[valid_count].master_key );
valid_count++;
}
} else {
ms_warning ( "sdp has a strange a= line (%s) nb=%i",belle_sdp_attribute_get_value ( attribute ),nb );
}
}
}
ms_message ( "Found: %d valid crypto lines", valid_count );
}
/* Get ICE candidate attributes if any */
for (attribute_it = belle_sdp_media_description_get_attributes(media_desc); attribute_it != NULL; attribute_it=attribute_it->next) {
const char *att_name;
attribute=(belle_sdp_attribute_t*)attribute_it->data;
att_name=belle_sdp_attribute_get_name(attribute);
value=belle_sdp_attribute_get_value(attribute);
if ((keywordcmp("candidate", att_name) == 0) && (value != NULL)) {
SalIceCandidate *candidate = &stream->ice_candidates[nb_ice_candidates];
int nb = sscanf(value, "%s %u UDP %u %s %d typ %s raddr %s rport %d",
candidate->foundation, &candidate->componentID, &candidate->priority, candidate->addr, &candidate->port,
candidate->type, candidate->raddr, &candidate->rport);
if ((nb == 6) || (nb == 8)) nb_ice_candidates++;
else memset(candidate, 0, sizeof(*candidate));
} else if ((keywordcmp("remote-candidates", att_name) == 0) && (value != NULL)) {
SalIceRemoteCandidate candidate;
unsigned int componentID;
int offset;
const char *ptr = value;
const char *endptr=value+strlen(ptr);
while (3 == sscanf(ptr, "%u %s %u%n", &componentID, candidate.addr, &candidate.port, &offset)) {
if ((componentID > 0) && (componentID <= SAL_MEDIA_DESCRIPTION_MAX_ICE_REMOTE_CANDIDATES)) {
SalIceRemoteCandidate *remote_candidate = &stream->ice_remote_candidates[componentID - 1];
strncpy(remote_candidate->addr, candidate.addr, sizeof(remote_candidate->addr));
remote_candidate->port = candidate.port;
}
ptr += offset;
if (ptr<endptr){
if (ptr[offset] == ' ') ptr += 1;
}else break;
}
} else if ((keywordcmp("ice-ufrag", att_name) == 0) && (value != NULL)) {
strncpy(stream->ice_ufrag, value, sizeof(stream->ice_ufrag));
} else if ((keywordcmp("ice-pwd", att_name) == 0) && (value != NULL)) {
strncpy(stream->ice_pwd, value, sizeof(stream->ice_pwd));
} else if (keywordcmp("ice-mismatch", att_name) == 0) {
stream->ice_mismatch = TRUE;
}
}
desc->n_total_streams++;
}
return 0;
}
