static void test_overflow(void){
belle_sdp_session_description_t* sdp;
belle_sip_list_t *mds;
belle_sdp_media_description_t *vmd;
int i;
const size_t orig_buffsize=1024;
size_t buffsize=orig_buffsize;
char *buffer=belle_sip_malloc0(buffsize);
size_t offset=0;
sdp=belle_sdp_session_description_parse(big_sdp);
CU_ASSERT_PTR_NOT_NULL(sdp);
mds=belle_sdp_session_description_get_media_descriptions(sdp);
CU_ASSERT_PTR_NOT_NULL(mds);
CU_ASSERT_PTR_NOT_NULL(mds->next);
vmd=(belle_sdp_media_description_t*)mds->next->data;
for(i=0;i<16;i++){
belle_sdp_media_description_add_attribute(vmd,belle_sdp_attribute_create("candidate","2 1 UDP 1694498815 82.65.223.97 9078 typ srflx raddr 192.168.0.2 rport 9078"));
}
CU_ASSERT_EQUAL(belle_sip_object_marshal(BELLE_SIP_OBJECT(sdp),buffer,buffsize,&offset),BELLE_SIP_BUFFER_OVERFLOW);
belle_sip_message("marshal size is %i",(int)offset);
CU_ASSERT_TRUE(offset==buffsize);
belle_sip_object_unref(sdp);
belle_sip_free(buffer);
}
void belle_sip_multipart_body_handler_add_part(belle_sip_multipart_body_handler_t *obj, belle_sip_body_handler_t *part){
obj->base.expected_size+=part->expected_size+strlen(obj->boundary) + 4; /* add the separator length to the body length as each part start with a separator. 4 is for "--" and "\r\n" */
if (part->headers != NULL) { /* there is a declared header for this part, add its length to the expected total length */
size_t headerStringBufferSize = DEFAULT_HEADER_STRING_SIZE;
size_t offset = 0;
belle_sip_list_t *headerList = part->headers;
part->headerStringBuffer = (char *)belle_sip_malloc(DEFAULT_HEADER_STRING_SIZE);
while (headerList != NULL) {
size_t offsetBackup=offset; /* we must backup the offset as it will be messed up by the marshal function in case of failure */
belle_sip_error_code returnCode = belle_sip_object_marshal(headerList->data, part->headerStringBuffer, headerStringBufferSize-5, &offset); /* -5 to leave room for carriage returns */
if (returnCode == BELLE_SIP_BUFFER_OVERFLOW) { /* increase buffer size */
offset=offsetBackup; /* restore the offset, no data were written to the buffer */
headerStringBufferSize+=DEFAULT_HEADER_STRING_SIZE;
part->headerStringBuffer = (char *)belle_sip_realloc(part->headerStringBuffer, headerStringBufferSize);
} else if (returnCode == BELLE_SIP_OK) { /* add the carriage return chars */
part->headerStringBuffer[offset++]='\r';
part->headerStringBuffer[offset++]='\n';
headerList = belle_sip_list_next(headerList);
}
}
part->headerStringBuffer[offset++]='\r';
part->headerStringBuffer[offset++]='\n';
obj->base.expected_size += offset;
part->headerStringBuffer[offset++]='\0'; /* null terminate the buffer in order to be able to get it length later using strlen */
}
obj->parts=belle_sip_list_append(obj->parts,belle_sip_object_ref(part));
}
static char * belle_sip_object_to_alloc_string(belle_sip_object_t *obj, int size_hint){
char *buf=belle_sip_malloc(size_hint);
size_t offset=0;
belle_sip_error_code error = belle_sip_object_marshal(obj,buf,size_hint-1,&offset);
obj->vptr->tostring_bufsize_hint=size_hint;
if (error==BELLE_SIP_BUFFER_OVERFLOW){
belle_sip_message("belle_sip_object_to_alloc_string(): hint buffer was too short while doing to_string() for %s, retrying", obj->vptr->type_name);
belle_sip_free(buf);
return belle_sip_object_to_alloc_string(obj,2*size_hint);
}
buf=belle_sip_realloc(buf,offset+1);
buf[offset]='\0';
return buf;
}
char* belle_sip_object_to_string(void* _obj) {
belle_sip_object_t *obj=BELLE_SIP_OBJECT(_obj);
if (obj->vptr->tostring_bufsize_hint!=0){
return belle_sip_object_to_alloc_string(obj,obj->vptr->tostring_bufsize_hint);
}else{
char buff[BELLE_SIP_MAX_TO_STRING_SIZE];
size_t offset=0;
belle_sip_error_code error = belle_sip_object_marshal(obj,buff,sizeof(buff),&offset);
if (error==BELLE_SIP_BUFFER_OVERFLOW){
belle_sip_message("belle_sip_object_to_string(): temporary buffer is too short while doing to_string() for %s, retrying", obj->vptr->type_name);
return belle_sip_object_to_alloc_string(obj,get_hint_size(2*offset));
}
buff[offset]='\0';
obj->vptr->tostring_bufsize_hint=get_hint_size(2*offset);
return belle_sip_strdup(buff);
}
}
char *sal_address_as_string_uri_only(const SalAddress *addr){
belle_sip_header_address_t* header_addr = BELLE_SIP_HEADER_ADDRESS(addr);
belle_sip_uri_t* sip_uri = belle_sip_header_address_get_uri(header_addr);
belle_generic_uri_t* absolute_uri = belle_sip_header_address_get_absolute_uri(header_addr);
char tmp[1024]={0};
size_t off=0;
belle_sip_object_t* uri;
if (sip_uri) {
uri=(belle_sip_object_t*)sip_uri;
} else if (absolute_uri) {
uri=(belle_sip_object_t*)absolute_uri;
} else {
ms_error("Cannot generate string for addr [%p] with null uri",addr);
return NULL;
}
belle_sip_object_marshal(uri,tmp,sizeof(tmp),&off);
return ms_strdup(tmp);
}
static int set_sdp(belle_sip_message_t *msg,belle_sdp_session_description_t* session_desc) {
belle_sip_header_content_type_t* content_type ;
belle_sip_header_content_length_t* content_length;
belle_sip_error_code error = BELLE_SIP_BUFFER_OVERFLOW;
size_t length = 0;
if (session_desc) {
size_t bufLen = 2048;
size_t hardlimit = 16*1024; /* 16k SDP limit seems reasonable */
char* buff = belle_sip_malloc(bufLen);
content_type = belle_sip_header_content_type_create("application","sdp");
/* try to marshal the description. This could go higher than 2k so we iterate */
while( error != BELLE_SIP_OK && bufLen <= hardlimit && buff != NULL){
error = belle_sip_object_marshal(BELLE_SIP_OBJECT(session_desc),buff,bufLen,&length);
if( error != BELLE_SIP_OK ){
bufLen *= 2;
length = 0;
buff = belle_sip_realloc(buff,bufLen);
}
}
/* give up if hard limit reached */
if (error != BELLE_SIP_OK || buff == NULL) {
ms_error("Buffer too small (%d) or not enough memory, giving up SDP", (int)bufLen);
return -1;
}
content_length = belle_sip_header_content_length_create(length);
belle_sip_message_add_header(msg,BELLE_SIP_HEADER(content_type));
belle_sip_message_add_header(msg,BELLE_SIP_HEADER(content_length));
belle_sip_message_assign_body(msg,buff,length);
return 0;
} else {
return -1;
}
}
static int set_sdp(belle_sip_message_t *msg,belle_sdp_session_description_t* session_desc) {
belle_sip_header_content_type_t* content_type ;
belle_sip_header_content_length_t* content_length;
belle_sip_error_code error = BELLE_SIP_OK;
size_t length = 0;
char buff[2048];
if (session_desc) {
content_type = belle_sip_header_content_type_create("application","sdp");
error = belle_sip_object_marshal(BELLE_SIP_OBJECT(session_desc),buff,sizeof(buff),&length);
if (error != BELLE_SIP_OK) {
ms_error("Buffer too small or sdp too big");
return -1;
}
content_length= belle_sip_header_content_length_create(length);
belle_sip_message_add_header(msg,BELLE_SIP_HEADER(content_type));
belle_sip_message_add_header(msg,BELLE_SIP_HEADER(content_length));
belle_sip_message_set_body(msg,buff,length);
return 0;
} else {
return -1;
}
}
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 void _send_message(belle_sip_channel_t *obj){
char buffer[belle_sip_network_buffer_size];
size_t len=0;
belle_sip_error_code error=BELLE_SIP_OK;
belle_sip_message_t *msg=obj->cur_out_message;
belle_sip_body_handler_t *bh=belle_sip_message_get_body_handler(msg);
size_t body_len=bh ? belle_sip_body_handler_get_size(bh) : 0;
int sendret;
size_t off;
int ret;
if (obj->ewouldblock_buffer){
sendret=send_buffer(obj,(const char*)obj->ewouldblock_buffer+obj->ewouldblock_offset,obj->ewouldblock_size-obj->ewouldblock_offset);
if (sendret>0){
obj->ewouldblock_offset+=sendret;
if (obj->ewouldblock_offset==obj->ewouldblock_size){
free_ewouldblock_buffer(obj);
}
return; /*we prefer poll again to be sure we can write*/
}else if (belle_sip_error_code_is_would_block(-sendret)) {
/*we got an ewouldblock again. Nothing to do, we'll be called later in order to retry*/
return;
}else {/*error or disconnection case*/
goto done;
}
}
if (obj->out_state==OUTPUT_STREAM_SENDING_HEADERS){
BELLE_SIP_INVOKE_LISTENERS_ARG1_ARG2(obj->listeners,belle_sip_channel_listener_t,on_sending,obj,msg);
check_content_length(msg,body_len);
error=belle_sip_object_marshal((belle_sip_object_t*)msg,buffer,sizeof(buffer)-1,&len);
if (error!=BELLE_SIP_OK) {
belle_sip_error("channel [%p] _send_message: marshaling failed.",obj);
goto done;
}
/*send the headers and eventually the body if it fits in our buffer*/
if (bh){
size_t max_body_len=sizeof(buffer)-1-len;
if (body_len>0 && body_len<=max_body_len){ /*if size is known and fits into our buffer, send together with headers*/
belle_sip_body_handler_begin_transfer(bh);
do{
max_body_len=sizeof(buffer)-1-len;
ret=belle_sip_body_handler_send_chunk(bh,msg,(uint8_t*)buffer+len,&max_body_len);
len+=max_body_len;
}while(ret==BELLE_SIP_CONTINUE);
belle_sip_body_handler_end_transfer(bh);
}else{
if (body_len==0){
belle_sip_fatal("Sending bodies whose size is not known must be done in chunked mode, which is not supported yet.");
}
belle_sip_body_handler_begin_transfer(bh);
obj->out_state=OUTPUT_STREAM_SENDING_BODY;
}
}
off=0;
do{
sendret=send_buffer(obj,buffer+off,len-off);
if (sendret>0){
off+=sendret;
if (off==len){
break;
}
}else if (belle_sip_error_code_is_would_block(-sendret)) {
handle_ewouldblock(obj,buffer+off,len-off);
return;
}else {/*error or disconnection case*/
goto done;
}
}while(1);
}
if (obj->out_state==OUTPUT_STREAM_SENDING_BODY){
do{
size_t chunk_len=sizeof(buffer)-1;
ret=belle_sip_body_handler_send_chunk(bh,msg,(uint8_t*)buffer,&chunk_len);
if (chunk_len!=0){
off=0;
do{
sendret=send_buffer(obj,buffer+off,chunk_len-off);
if (sendret>0){
off+=sendret;
if (off==chunk_len){
break;
}
}else if (belle_sip_error_code_is_would_block(-sendret)) {
handle_ewouldblock(obj,buffer+off,chunk_len-off);
return;
}else {/*error or disconnection case*/
goto done;
}
}while(1);
}
}while(ret==BELLE_SIP_CONTINUE);
belle_sip_body_handler_end_transfer(bh);
}
done:
/*we get ready to send another message*/
belle_sip_source_set_events((belle_sip_source_t*)obj,BELLE_SIP_EVENT_READ|BELLE_SIP_EVENT_ERROR);
free_ewouldblock_buffer(obj);
obj->out_state=OUTPUT_STREAM_IDLE;
belle_sip_object_unref(obj->cur_out_message);
obj->cur_out_message=NULL;
}
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);
}
char *sal_address_as_string(const SalAddress *addr){
char tmp[1024]={0};
size_t off=0;
belle_sip_object_marshal((belle_sip_object_t*)addr,tmp,sizeof(tmp),&off);
return ms_strdup(tmp);
}