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Bug 837035 - Support DataChannels with SDP Negotiation r=jesup,r=ehugg

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This commit is contained in:
Ethan Hugg 2013-02-28 13:17:42 -08:00
parent 423155109e
commit 9e1b988a95
13 changed files with 161 additions and 67 deletions
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42
media/webrtc/signaling/src/media/VcmSIPCCBinding.cpp
View File

@ -1054,18 +1054,56 @@ short vcmGetDtlsIdentity(const char *peerconnection,
*
* @param[in] peerconnection - the peerconnection in use
* @param[in] streams - the number of streams for this data channel
* @param[in] sctp_port - the negotiated sctp port
* @param[in] local_datachannel_port - the negotiated sctp port
* @param[in] remote_datachannel_port - the negotiated sctp port
* @param[in] protocol - the protocol as a string
*
* @return 0 success, error failure
*/
short vcmSetDataChannelParameters(const char *peerconnection, cc_uint16_t streams, int sctp_port, const char* protocol)
static short vcmInitializeDataChannel_m(const char *peerconnection, cc_uint16_t streams,
int local_datachannel_port, int remote_datachannel_port, const char* protocol)
{
nsresult res;
CSFLogDebug( logTag, "%s: PC = %s", __FUNCTION__, peerconnection);
sipcc::PeerConnectionWrapper pc(peerconnection);
ENSURE_PC(pc, VCM_ERROR);
res = pc.impl()->InitializeDataChannel(local_datachannel_port, remote_datachannel_port, streams);
if (NS_FAILED(res)) {
return VCM_ERROR;
}
return 0;
}
/* Set negotiated DataChannel parameters.
*
* @param[in] peerconnection - the peerconnection in use
* @param[in] streams - the number of streams for this data channel
* @param[in] local_datachannel_port - the negotiated sctp port
* @param[in] remote_datachannel_port - the negotiated sctp port
* @param[in] protocol - the protocol as a string
*
* @return 0 success, error failure
*/
short vcmInitializeDataChannel(const char *peerconnection, cc_uint16_t streams,
int local_datachannel_port, int remote_datachannel_port, const char* protocol)
{
short ret;
mozilla::SyncRunnable::DispatchToThread(VcmSIPCCBinding::getMainThread(),
WrapRunnableNMRet(&vcmInitializeDataChannel_m,
peerconnection,
streams,
local_datachannel_port,
remote_datachannel_port,
protocol,
&ret));
return ret;
}
/**

15
media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.cpp
View File

@ -625,11 +625,22 @@ PeerConnectionImpl::CreateFakeMediaStream(uint32_t aHint, nsIDOMMediaStream** aR
return NS_OK;
}
// Stubbing this call out for now.
// We can remove it when we are confident of datachannels being started
// correctly on SDP negotiation
NS_IMETHODIMP
PeerConnectionImpl::ConnectDataConnection(uint16_t aLocalport,
uint16_t aRemoteport,
uint16_t aNumstreams)
{
return NS_OK; // InitializeDataChannel(aLocalport, aRemoteport, aNumstreams);
}
// Data channels won't work without a window, so in order for the C++ unit
// tests to work (it doesn't have a window available) we ifdef the following
// two implementations.
NS_IMETHODIMP
PeerConnectionImpl::ConnectDataConnection(uint16_t aLocalport,
nsresult
PeerConnectionImpl::InitializeDataChannel(uint16_t aLocalport,
uint16_t aRemoteport,
uint16_t aNumstreams)
{

3
media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.h
View File

@ -236,6 +236,9 @@ public:
NS_IMETHODIMP CreateOffer(MediaConstraints& aConstraints);
NS_IMETHODIMP CreateAnswer(MediaConstraints& aConstraints);
nsresult
InitializeDataChannel(uint16_t aLocalport, uint16_t aRemoteport, uint16_t aNumstreams);
// Called whenever something is unrecognized by the parser
// May be called more than once and does not necessarily mean
// that parsing was stopped, only that something was unrecognized.

64
media/webrtc/signaling/src/sipcc/core/gsm/gsm_sdp.c
View File

@ -532,7 +532,12 @@ gsmsdp_init_media (fsmdef_media_t *media)
media->video = NULL;
media->candidate_ct = 0;
media->rtcp_mux = FALSE;
media->protocol = NULL;
media->local_datachannel_port = 0;
media->remote_datachannel_port = 0;
media->datachannel_streams = WEBRTC_DATACHANNEL_STREAMS_DEFAULT;
sstrncpy(media->datachannel_protocol, WEBRTC_DATA_CHANNEL_PROT, SDP_MAX_STRING_LEN);
media->payloads = NULL;
media->num_payloads = 0;
}
@ -1454,11 +1459,11 @@ gsmsdp_set_sctp_attributes (void *sdp_p, uint16_t level, fsmdef_media_t *media)
}
/* Use SCTP port in place of fmtp payload type */
(void) sdp_attr_set_fmtp_payload_type(sdp_p, level, 0, a_inst, media->sctp_port);
(void) sdp_attr_set_fmtp_payload_type(sdp_p, level, 0, a_inst, media->local_datachannel_port);
sdp_attr_set_fmtp_data_channel_protocol (sdp_p, level, 0, a_inst, WEBRTC_DATA_CHANNEL_PROT);
sdp_attr_set_fmtp_data_channel_protocol (sdp_p, level, 0, a_inst, media->datachannel_protocol);
sdp_attr_set_fmtp_streams (sdp_p, level, 0, a_inst, 16);
sdp_attr_set_fmtp_streams (sdp_p, level, 0, a_inst, media->datachannel_streams);
}
/*
@ -2444,7 +2449,7 @@ gsmsdp_update_local_sdp_media (fsmdef_dcb_t *dcb_p, cc_sdp_t *cc_sdp_p,
(void) sdp_set_media_type(sdp_p, level, media->type);
(void) sdp_set_media_portnum(sdp_p, level, port, media->sctp_port);
(void) sdp_set_media_portnum(sdp_p, level, port, media->local_datachannel_port);
/* Set media transport and crypto attributes if it is for SRTP */
gsmsdp_update_local_sdp_media_transport(dcb_p, sdp_p, media, transport,
@ -3303,27 +3308,37 @@ gsmsdp_negotiate_codec (fsmdef_dcb_t *dcb_p, cc_sdp_t *sdp_p,
return (RTP_NONE);
}
/*
* gsmsdp_negotiate_datachannel_attribs
*
* dcb_p - a pointer to the current dcb
* sdp_p - the sdp we are analyzing
* media - the media info
* offer - Boolean indicating if the remote SDP came in an OFFER.
*/
static void
gsmsdp_negotiate_datachannel_attribs(fsmdef_dcb_t* dcb_p, cc_sdp_t* sdp_p, uint16_t level, fsmdef_media_t* media)
gsmsdp_negotiate_datachannel_attribs(fsmdef_dcb_t* dcb_p, cc_sdp_t* sdp_p, uint16_t level,
fsmdef_media_t* media, boolean offer)
{
uint32 num_streams;
char *protocol;
sdp_attr_get_fmtp_streams (sdp_p->dest_sdp, level, 0, 1, &num_streams);
media->streams = num_streams;
media->datachannel_streams = num_streams;
if(media->protocol == NULL) {
media->protocol = cpr_malloc(SDP_MAX_STRING_LEN+1);
if (media->protocol == NULL)
return;
sdp_attr_get_fmtp_data_channel_protocol(sdp_p->dest_sdp, level, 0, 1, media->datachannel_protocol);
media->remote_datachannel_port = sdp_get_media_sctp_port(sdp_p->dest_sdp, level);
/*
* TODO: remove the following block when SCTP code is updated
* See bug 837035 comment #5
*/
if (offer) {
/* Increment port for answer SDP */
media->local_datachannel_port = media->remote_datachannel_port + 1;
}
sdp_attr_get_fmtp_data_channel_protocol(sdp_p->dest_sdp, level, 0, 1, media->protocol);
media->sctp_port = sdp_attr_get_fmtp_payload_type (sdp_p->dest_sdp, level, 0, 1);
/* Increment port for answer SDP */
media->sctp_port++;
}
/*
@ -4516,7 +4531,7 @@ gsmsdp_negotiate_media_lines (fsm_fcb_t *fcb_p, cc_sdp_t *sdp_p, boolean initial
break;
}
} else {
gsmsdp_negotiate_datachannel_attribs(dcb_p, sdp_p, i, media);
gsmsdp_negotiate_datachannel_attribs(dcb_p, sdp_p, i, media, offer);
}
/*
@ -4635,17 +4650,6 @@ gsmsdp_negotiate_media_lines (fsm_fcb_t *fcb_p, cc_sdp_t *sdp_p, boolean initial
MOZ_ASSERT(result); /* TODO(ekr@rtfm.com) add real
error checking, but this
"can't fail" */
} else {
/*
* Inform VCM that a Data Channel has been negotiated
*/
int pc_stream_id; /* Set but unused. Provided to
fulfill the API contract
TODO(adam@nostrum.com):
use or remove */
lsm_data_channel_negotiated(dcb_p->line, dcb_p->call_id,
media, &pc_stream_id);
}
}
}
@ -5066,7 +5070,7 @@ gsmsdp_add_media_line (fsmdef_dcb_t *dcb_p, const cc_media_cap_t *media_cap,
if(media_cap->type == SDP_MEDIA_APPLICATION) {
config_get_value(CFGID_SCTP_PORT, &sctp_port, sizeof(sctp_port));
media->sctp_port = sctp_port;
media->local_datachannel_port = sctp_port;
}
/*

8
media/webrtc/signaling/src/sipcc/core/gsm/h/fsm.h
View File

@ -230,13 +230,15 @@ typedef struct fsmdef_media_t_ {
/*
* port number used in m= data channel line
*/
uint16_t sctp_port;
uint16_t local_datachannel_port;
uint16_t remote_datachannel_port;
/*
* Data Channel properties
*/
uint32 streams;
char *protocol;
#define WEBRTC_DATACHANNEL_STREAMS_DEFAULT 16
uint32 datachannel_streams;
char datachannel_protocol[SDP_MAX_STRING_LEN + 1];
/*
* This field contains the number of elements in the payloads field.

2
media/webrtc/signaling/src/sipcc/core/gsm/h/lsm.h
View File

@ -174,7 +174,7 @@ lsm_util_tone_start_with_speaker_as_backup (vcm_tones_t tone, short alert_info,
cc_call_handle_t call_handle, groupid_t group_id,
streamid_t stream_id, uint16_t direction);
void lsm_data_channel_negotiated (line_t line, callid_t call_id, fsmdef_media_t *media, int *pc_stream_id);
void lsm_initialize_datachannel (fsmdef_dcb_t *dcb, fsmdef_media_t *media);
#endif //_LSM_H_

59
media/webrtc/signaling/src/sipcc/core/gsm/lsm.c
View File

@ -34,6 +34,8 @@
#include "util_string.h"
#include "platform_api.h"
static const char* logTag = "lsm";
#ifndef NO
#define NO (0)
#endif
@ -905,7 +907,8 @@ lsm_rx_start (lsm_lcb_t *lcb, const char *fname, fsmdef_media_t *media)
* For SRTP, the receive can not be opened if the remote's crypto
* parameters are not received yet.
*/
if (!gsmsdp_is_crypto_ready(media, TRUE)) {
if (media->type != SDP_MEDIA_APPLICATION &&
!gsmsdp_is_crypto_ready(media, TRUE)) {
LSM_DEBUG(DEB_L_C_F_PREFIX"%s: Not ready to open receive port (%d)\n",
DEB_L_C_F_PREFIX_ARGS(LSM, dcb->line, dcb->call_id, fname1), fname, media->src_port);
continue;
@ -1051,6 +1054,13 @@ lsm_rx_start (lsm_lcb_t *lcb, const char *fname, fsmdef_media_t *media)
}
}
}
if (media->type == SDP_MEDIA_APPLICATION) {
/* Enable datachannels
Datachannels are always two-way so initializing only here in rx_start.
*/
lsm_initialize_datachannel(dcb, media);
}
}
}
@ -5301,40 +5311,35 @@ void lsm_add_remote_stream (line_t line, callid_t call_id, fsmdef_media_t *media
}
/*
* lsm_data_channel_negotiated
* lsm_initialize_datachannel
*
* Description:
* The function informs the API of a negotiated data channel m= line
* The function initializes the datachannel with port and
* protocol info.
*
* Parameters:
* [in] line - line
* [in] call_id - GSM call ID
* [in] media - media line to add as remote stream
* [out] pc_stream_id
* [in] dcb - pointer to get the peerconnection id
* [in] media - pointer to get the datachannel info
* Returns: None
*/
void lsm_data_channel_negotiated (line_t line, callid_t call_id, fsmdef_media_t *media, int *pc_stream_id)
void lsm_initialize_datachannel (fsmdef_dcb_t *dcb, fsmdef_media_t *media)
{
static const char fname[] = "lsm_data_channel_negotiated";
fsmdef_dcb_t *dcb;
lsm_lcb_t *lcb;
lcb = lsm_get_lcb_by_call_id(call_id);
if (lcb) {
dcb = lcb->dcb;
if (dcb == NULL) {
LSM_ERR_MSG(get_debug_string(DEBUG_INPUT_NULL), fname);
return;
}
/*
* have access to media->streams, media->protocol, media->sctp_port
* vcmSetDataChannelParameters may need renaming TODO: jesup
*/
vcmSetDataChannelParameters(dcb->peerconnection, media->streams, media->sctp_port, media->protocol);
if (!dcb) {
CSFLogError(logTag, "%s DCB is NULL", __FUNCTION__);
return;
}
if (!media) {
CSFLogError(logTag, "%s media is NULL", __FUNCTION__);
return;
}
/*
* have access to media->streams, media->protocol, media->local/remote_datachannel_port
*/
vcmInitializeDataChannel(dcb->peerconnection, media->datachannel_streams,
media->local_datachannel_port, media->remote_datachannel_port,
media->datachannel_protocol);
}
/**

1
media/webrtc/signaling/src/sipcc/core/sdp/sdp.h
View File

@ -1163,6 +1163,7 @@ extern sdp_result_e sdp_set_media_port_format(void *sdp_ptr, u16 level,
sdp_port_format_e port_format);
extern sdp_result_e sdp_set_media_portnum(void *sdp_ptr, u16 level,
int32 portnum, int32 sctpport);
extern int32 sdp_get_media_sctp_port(void *sdp_ptr, u16 level);
extern sdp_result_e sdp_set_media_portcount(void *sdp_ptr, u16 level,
int32 num_ports);
extern sdp_result_e sdp_set_media_vpi(void *sdp_ptr, u16 level, int32 vpi);

25
media/webrtc/signaling/src/sipcc/core/sdp/sdp_access.c
View File

@ -2016,6 +2016,31 @@ sdp_result_e sdp_set_media_portnum (void *sdp_ptr, u16 level, int32 portnum, int
return (SDP_SUCCESS);
}
/* Function: sdp_get_media_sctp_port
* Description: Gets the value of the sctp port number parameter for the m=
* media token line.
* Parameters: sdp_ptr The SDP handle returned by sdp_init_description.
* level The media level to set the param. Will be 1-n.
* Returns: sctp_port or -1 on failure
*/
int32 sdp_get_media_sctp_port(void *sdp_ptr, u16 level)
{
sdp_t *sdp_p = (sdp_t *)sdp_ptr;
sdp_mca_t *mca_p;
if (!sdp_verify_sdp_ptr(sdp_p)) {
return -1;
}
mca_p = sdp_find_media_level(sdp_p, level);
if (!mca_p) {
sdp_p->conf_p->num_invalid_param++;
return -1;
}
return mca_p->sctpport;
}
/* Function: sdp_set_media_portcount
* Description: Sets the value of the port count parameter for the m=
* media token line. If the port count is not valid with the

2
media/webrtc/signaling/src/sipcc/core/sdp/sdp_attr_access.c
View File

@ -5,6 +5,7 @@
#include "sdp_os_defs.h"
#include "sdp.h"
#include "sdp_private.h"
#include "fsm.h"
#include "CSFLog.h"
static const char* logTag = "sdp_attr_access";
@ -6659,6 +6660,7 @@ sdp_result_e sdp_attr_get_fmtp_streams (void *sdp_ptr, u16 level,
"not found.", sdp_p->debug_str, level, inst_num);
}
sdp_p->conf_p->num_invalid_param++;
*val = WEBRTC_DATACHANNEL_STREAMS_DEFAULT;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.fmtp.streams;

5
media/webrtc/signaling/src/sipcc/include/vcm.h
View File

@ -672,9 +672,10 @@ int vcmTxStart(cc_mcapid_t mcap_id,
size_t max_digest_len);
short vcmSetDataChannelParameters(const char *peerconnection,
short vcmInitializeDataChannel(const char *peerconnection,
cc_uint16_t streams,
int sctp_port,
int local_datachannel_port,
int remote_datachannel_port,
const char* protocol);
/*!

1
netwerk/sctp/datachannel/Makefile.in
View File

@ -13,6 +13,7 @@ include $(DEPTH)/config/autoconf.mk
LIBRARY_NAME = nkdatachan_s
LIBXUL_LIBRARY = 1
FORCE_STATIC_LIB = 1
NO_PROFILE_GUIDED_OPTIMIZE = 1 # Don't PGO
EXPORTS_NAMESPACES = mozilla/net

1
netwerk/sctp/src/Makefile.in
View File

@ -17,6 +17,7 @@ include $(DEPTH)/config/autoconf.mk
LIBRARY_NAME = nksctp_s
LIBXUL_LIBRARY = 1
FORCE_STATIC_LIB = 1
NO_PROFILE_GUIDED_OPTIMIZE = 1 # Don't PGO
EXPORTS_NAMESPACES = mozilla/net