{ MNCC_STOP_DTMF_REQ, "MNCC_STOP_DTMF_REQ" },
{ MNCC_HOLD_REQ, "MNCC_HOLD_REQ " },
{ MNCC_RETRIEVE_REQ, "MNCC_RETRIEVE_REQ" },
+
{ MNCC_LCHAN_MODIFY, "MNCC_LCHAN_MODIFY" },
+
+ { MNCC_BRIDGE, "MNCC_BRIDGE" },
+ { MNCC_FRAME_RECV, "MNCC_FRAME_RECV" },
+ { MNCC_FRAME_DROP, "MNCC_FRAME_DROP" },
+ { MNCC_RTP_CREATE, "MNCC_RTP_CREATE" },
+ { MNCC_RTP_CONNECT, "MNCC_RTP_CONNECT" },
+ { MNCC_RTP_FREE, "MNCC_RTP_FREE" },
+
{ 0, NULL }
};
const char *mncc_name(int value)
{
int i = 0;
+ static char ukn[32];
while (mncc_names[i].name) {
if (mncc_names[i].msg_type == value)
return mncc_names[i].name;
i++;
}
- return "unknown";
+ SPRINT(ukn, "unknown(0x%x)", value);
+ return ukn;
}
static int mncc_send(struct lcr_gsm *lcr_gsm, int msg_type, void *data);
*/
Pgsm::Pgsm(int type, char *portname, struct port_settings *settings, struct interface *interface) : Port(type, portname, settings, interface)
{
+#ifdef WITH_GSMHR
+ signed short homing[160];
+ int i;
+#endif
+
p_g_tones = 0;
if (interface->is_tones == IS_YES)
p_g_tones = 1;
p_g_notify_pending = NULL;
p_g_setup_pending = NULL;
p_g_connect_pending = NULL;
- p_g_decoder = gsm_audio_create();
- p_g_encoder = gsm_audio_create();
- if (!p_g_encoder || !p_g_decoder) {
- PERROR("Failed to create GSM audio codec instance\n");
+ p_g_fr_decoder = NULL;
+ p_g_fr_encoder = NULL;
+ p_g_hr_decoder = NULL;
+ p_g_hr_encoder = NULL;
+ p_g_amr_decoder = NULL;
+ p_g_amr_encoder = NULL;
+ p_g_amr_cmr = 0;
+ p_g_amr_cmr_valid = 0;
+#ifdef WITH_GSMFR
+ p_g_fr_decoder = gsm_fr_create();
+ p_g_fr_encoder = gsm_fr_create();
+ if (!p_g_fr_encoder || !p_g_fr_decoder) {
+ PERROR("Failed to create GSM FR codec instance\n");
+ trigger_work(&p_g_delete);
+ }
+#endif
+#ifdef WITH_GSMHR
+ p_g_hr_decoder = gsm_hr_create();
+ p_g_hr_encoder = gsm_hr_create();
+ if (!p_g_hr_encoder || !p_g_hr_decoder) {
+ PERROR("Failed to create GSM HR codec instance\n");
+ trigger_work(&p_g_delete);
+ }
+ /* Homing */
+ for (i = 0; i < 160; i++)
+ homing[i] = 0x0008;
+ gsm_hr_encode(p_g_hr_encoder, homing, NULL);
+#endif
+#ifdef WITH_GSMAMR
+ p_g_amr_decoder = gsm_amr_create();
+ p_g_amr_encoder = gsm_amr_create();
+ if (!p_g_amr_encoder || !p_g_amr_decoder) {
+ PERROR("Failed to create GSM AMR codec instance\n");
trigger_work(&p_g_delete);
}
+#endif
p_g_rxpos = 0;
p_g_tch_connected = 0;
p_g_media_type = 0;
if (p_g_connect_pending)
message_free(p_g_connect_pending);
+//#ifdef WITH_GSMFR
+ /* close codec */
+ if (p_g_fr_encoder)
+ gsm_fr_destroy(p_g_fr_encoder);
+ if (p_g_fr_decoder)
+ gsm_fr_destroy(p_g_fr_decoder);
+//#endif
+#ifdef WITH_GSMHR
+ if (p_g_hr_encoder)
+ gsm_hr_destroy(p_g_hr_encoder);
+ if (p_g_hr_decoder)
+ gsm_hr_destroy(p_g_hr_decoder);
+#endif
+#ifdef WITH_GSMAMR
/* close codec */
- if (p_g_encoder)
- gsm_audio_destroy(p_g_encoder);
- if (p_g_decoder)
- gsm_audio_destroy(p_g_decoder);
+ if (p_g_amr_encoder)
+ gsm_amr_destroy(p_g_amr_encoder);
+ if (p_g_amr_decoder)
+ gsm_amr_destroy(p_g_amr_decoder);
+#endif
}
{
struct gsm_data_frame *frame = (struct gsm_data_frame *)arg;
unsigned char data[160];
- int i;
-
- if (!p_g_decoder)
- return;
+ int i, cmr;
- if (frame->msg_type != GSM_BAD_FRAME) {
- if ((frame->data[0]>>4) != 0xd)
- PERROR("received GSM frame with wrong magig 0x%x\n", frame->data[0]>>4);
-
+ switch (frame->msg_type) {
+ case GSM_TCHF_FRAME:
+ if (p_g_media_type != MEDIA_TYPE_GSM) {
+ PERROR("FR frame, but current media type mismatches.\n");
+ return;
+ }
+ if (!p_g_fr_decoder) {
+ PERROR("FR frame, but decoder not created.\n");
+ return;
+ }
+ if ((frame->data[0]>>4) != 0xd) {
+ PDEBUG(DEBUG_GSM, "received GSM frame with wrong magig 0x%x\n", frame->data[0]>>4);
+ goto bfi;
+ }
+#ifdef WITH_GSMFR
/* decode */
- gsm_audio_decode(p_g_decoder, frame->data, p_g_samples);
+ gsm_fr_decode(p_g_fr_decoder, frame->data, p_g_samples);
for (i = 0; i < 160; i++) {
data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
}
- } else if (p_echotest) {
- /* beep on bad frame */
+#endif
+ break;
+ case GSM_TCHH_FRAME:
+ if (p_g_media_type != MEDIA_TYPE_GSM_HR) {
+ PERROR("HR frame, but current media type mismatches.\n");
+ return;
+ }
+ if (!p_g_hr_decoder) {
+ PERROR("HR frame, but decoder not created.\n");
+ return;
+ }
+ if ((frame->data[0]>>4) != 0x0)
+ goto bfi;
+#ifdef WITH_GSMHR
+ /* decode */
+ if (gsm_hr_decode(p_g_hr_decoder, frame->data, p_g_samples))
+ goto bfi;
for (i = 0; i < 160; i++) {
- if ((i & 3) > 2)
- p_g_samples[i] = 15000;
- else
- p_g_samples[i] = -15000;
data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
}
- } else {
- /* repeat on bad frame */
+#endif
+ break;
+ case GSM_TCHF_FRAME_EFR:
+ if (p_g_media_type != MEDIA_TYPE_GSM_EFR) {
+ PERROR("EFR frame, but current media type mismatches.\n");
+ return;
+ }
+ if (!p_g_amr_decoder) {
+ PERROR("EFR frame, but decoder not created.\n");
+ return;
+ }
+ if ((frame->data[0]>>4) != 0xc)
+ goto bfi;
+#ifdef WITH_GSMAMR
+ /* decode */
+ gsm_efr_decode(p_g_amr_decoder, frame->data, p_g_samples);
for (i = 0; i < 160; i++) {
- p_g_samples[i] = (p_g_samples[i] * 14) >> 4;
data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
}
+#endif
+ break;
+ case GSM_TCH_FRAME_AMR:
+ if (p_g_media_type != MEDIA_TYPE_AMR) {
+ PERROR("AMR frame, but current media type mismatches.\n");
+ return;
+ }
+ if (!p_g_amr_decoder) {
+ PERROR("AMR frame, but decoder not created.\n");
+ return;
+ }
+ cmr = (frame->data[1] >> 4);
+ if (cmr <= 7) {
+ p_g_amr_cmr = cmr;
+ p_g_amr_cmr_valid = 1;
+ }
+ if (!(frame->data[2] & 0x04))
+ goto bfi;
+#ifdef WITH_GSMAMR
+ /* decode (skip length byte in front) */
+ gsm_amr_decode(p_g_amr_decoder, frame->data + 1, p_g_samples);
+ for (i = 0; i < 160; i++) {
+ data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
+ }
+#endif
+ break;
+ case GSM_BAD_FRAME:
+ default:
+bfi:
+ if (p_echotest) {
+ /* beep on bad frame */
+ for (i = 0; i < 160; i++) {
+ if ((i & 3) > 2)
+ p_g_samples[i] = 15000;
+ else
+ p_g_samples[i] = -15000;
+ data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
+ }
+ } else {
+ /* repeat on bad frame */
+ for (i = 0; i < 160; i++) {
+ p_g_samples[i] = (p_g_samples[i] * 14) >> 4;
+ data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
+ }
+ }
}
/* record data */
/* send traffic to gsm */
int Pgsm::bridge_rx(unsigned char *data, int len)
{
+ int ret;
+
+ if ((ret = Port::bridge_rx(data, len)))
+ return ret;
+
if (p_tone_name[0])
return -EINVAL;
int Pgsm::audio_send(unsigned char *data, int len)
{
unsigned char frame[33];
+ int ret;
/* record data */
if (p_record)
if (p_tap)
tap(data, len, 1); // from up
- /* encoder init failed */
- if (!p_g_encoder)
- return -EINVAL;
-
/* (currently) not connected, so don't flood tch! */
if (!p_g_tch_connected)
return -EINVAL;
/* write to rx buffer */
while(len--) {
p_g_rxdata[p_g_rxpos++] = audio_law_to_s32[*data++];
- if (p_g_rxpos == 160) {
- p_g_rxpos = 0;
-
+ if (p_g_rxpos != 160)
+ continue;
+ p_g_rxpos = 0;
+
+ switch (p_g_media_type) {
+ case MEDIA_TYPE_GSM:
+ if (!p_g_fr_encoder) {
+ PERROR("FR frame, but encoder not created.\n");
+ break;
+ }
+#ifdef WITH_GSMFR
+ /* encode data */
+ gsm_fr_encode(p_g_fr_encoder, p_g_rxdata, frame);
+ frame_send(frame, 33, GSM_TCHF_FRAME);
+#endif
+ break;
+ case MEDIA_TYPE_GSM_HR:
+ if (!p_g_hr_encoder) {
+ PERROR("HR frame, but encoder not created.\n");
+ break;
+ }
+#ifdef WITH_GSMHR
+ /* encode data */
+ gsm_hr_encode(p_g_hr_encoder, p_g_rxdata, frame);
+ frame_send(frame, 15, GSM_TCHH_FRAME);
+#endif
+ break;
+ case MEDIA_TYPE_GSM_EFR:
+ if (!p_g_amr_encoder) {
+ PERROR("EFR frame, but encoder not created.\n");
+ break;
+ }
+#ifdef WITH_GSMAMR
/* encode data */
- gsm_audio_encode(p_g_encoder, p_g_rxdata, frame);
- frame_send(frame);
+ gsm_efr_encode(p_g_amr_encoder, p_g_rxdata, frame);
+ frame_send(frame, 31, GSM_TCHF_FRAME_EFR);
+#endif
+ break;
+ case MEDIA_TYPE_AMR:
+ if (!p_g_amr_encoder) {
+ PERROR("AMR frame, but encoder not created.\n");
+ break;
+ }
+ if (!p_g_amr_cmr_valid) {
+ PDEBUG(DEBUG_GSM, "no valid CMR yet.\n");
+ break;
+ }
+#ifdef WITH_GSMAMR
+ /* encode data (prefix a length byte) */
+ ret = gsm_amr_encode(p_g_amr_encoder, p_g_rxdata, frame + 1, p_g_amr_cmr);
+ frame[0] = ret;
+ frame_send(frame, ret + 1, GSM_TCH_FRAME_AMR);
+#endif
+ break;
}
}
return 0;
}
-void Pgsm::frame_send(void *_frame)
+void Pgsm::frame_send(void *_frame, int len, int msg_type)
{
- unsigned char buffer[sizeof(struct gsm_data_frame) + 33];
+ unsigned char buffer[sizeof(struct gsm_data_frame) + len];
struct gsm_data_frame *frame = (struct gsm_data_frame *)buffer;
- frame->msg_type = GSM_TCHF_FRAME;
+ frame->msg_type = msg_type;
frame->callref = p_g_callref;
- memcpy(frame->data, _frame, 33);
+ memcpy(frame->data, _frame, len);
if (p_g_lcr_gsm) {
mncc_send(p_g_lcr_gsm, frame->msg_type, frame);
{
struct gsm_mncc *mode;
- /* already modified to that payload type */
+ /* already modified to that media type */
if (p_g_media_type == media_type)
return;
case MEDIA_TYPE_GSM_EFR:
add_trace("speech", "version", "EFR given");
mode->lchan_mode = 0x21; /* GSM V2 */
+ mode->lchan_type = 0x02; /* TCH/F */
break;
case MEDIA_TYPE_AMR:
add_trace("speech", "version", "AMR given");
mode->lchan_mode = 0x41; /* GSM V3 */
+ /* as we don't know the available channels, this type will be set by openbsc automatically */
+ mode->lchan_type = 0x02; /* TCH/F */
break;
+ case MEDIA_TYPE_GSM_HR:
+ add_trace("speech", "version", "Half Rate given");
+ mode->lchan_mode = 0x01; /* GSM V1 */
+ mode->lchan_type = 0x03; /* TCH/H */
default:
- add_trace("speech", "version", "Full/Half Rate given");
+ add_trace("speech", "version", "Full Rate given");
mode->lchan_mode = 0x01; /* GSM V1 */
+ mode->lchan_type = 0x02; /* TCH/F */
}
- mode->lchan_type = 0x02; /* FIXME: unused */
add_trace("mode", NULL, "0x%02x", mode->lchan_mode);
end_trace();
send_and_free_mncc(p_g_lcr_gsm, mode->msg_type, mode);
send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
p_g_tch_connected = 1;
}
+
+ /* modify to GSM FR (this is GSM user side only, so there is FR supported only) */
+ modify_lchan(MEDIA_TYPE_GSM);
}
/* ALERTING INDICATION */
send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
p_g_tch_connected = 1;
}
+
+ /* modify to GSM FR, if not already */
+ if (!p_g_media_type) {
+ modify_lchan(MEDIA_TYPE_GSM);
+ }
}
/* CONNECT INDICATION */
message->param.connectinfo.rtpinfo.media_types[0] = p_g_media_type;
message->param.connectinfo.rtpinfo.payload_types[0] = p_g_payload_type;
message->param.connectinfo.rtpinfo.payloads = 1;
+ } else {
+ /* modify to GSM FR, if not already
+ * for network side, this should have been already happened */
+ if (!p_g_media_type)
+ modify_lchan(MEDIA_TYPE_GSM);
}
+
if (p_g_rtp_bridge) {
struct gsm_mncc_rtp *rtp;
send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
p_g_tch_connected = 1;
}
+
+ /* modify to GSM FR, if not already */
+ if (!p_g_media_type) {
+ modify_lchan(MEDIA_TYPE_GSM);
+ }
}
/* DISCONNECT INDICATION */
// printf("if = %d\n", param->notifyinfo.notify);
if (param->notifyinfo.notify>INFO_NOTIFY_NONE) {
notify = param->notifyinfo.notify & 0x7f;
+ /* skip all notifiy ids that are not 0, 1, 2 */
+ if (notify > 2)
+ return;
if (p_state!=PORT_STATE_CONNECT /*&& p_state!=PORT_STATE_IN_PROCEEDING*/ && p_state!=PORT_STATE_IN_ALERTING) {
/* queue notification */
if (p_g_notify_pending)
send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
p_g_tch_connected = 1;
}
+
+ /* modify to GSM FR, if not already */
+ if (!p_g_media_type) {
+ modify_lchan(MEDIA_TYPE_GSM);
+ }
}
/* MESSAGE_CONNECT */
add_trace("cause", "coding", "%d", mncc->cause.coding);
add_trace("cause", "location", "%d", mncc->cause.location);
add_trace("cause", "value", "%d", mncc->cause.value);
+#ifdef WITH_GSM_MS
+ /* special case for BS mode */
+ if (param->disconnectinfo.transfer.result && (p_type & PORT_CLASS_GSM_MASK) == PORT_CLASS_GSM_BS) {
+ ((class Pgsm_bs *)this)->enc_ie_facility_ect(mncc, ¶m->disconnectinfo.transfer);
+ gsm_trace_facility((unsigned char *)mncc->facility.info, mncc->facility.len);
+ }
+#endif
end_trace();
send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
/* free all the calls that were running through the MNCC interface */
port = port_first;
while(port) {
- if ((port->p_type & PORT_CLASS_mISDN_MASK) == PORT_CLASS_GSM) {
+ if ((port->p_type & PORT_CLASS_MASK) == PORT_CLASS_GSM) {
pgsm = (class Pgsm *)port;
if (pgsm->p_g_lcr_gsm == lcr_gsm) {
message = message_create(pgsm->p_serial, ACTIVE_EPOINT(pgsm->p_epointlist), PORT_TO_EPOINT, MESSAGE_RELEASE);
int rc;
static char buf[sizeof(struct gsm_mncc)+1024];
struct gsm_mncc *mncc_prim = (struct gsm_mncc *) buf;
+ struct gsm_mncc_hello *hello = (struct gsm_mncc_hello *) buf;
memset(buf, 0, sizeof(buf));
rc = recv(lfd->fd, buf, sizeof(buf), 0);
if (rc < 0)
return rc;
+ /* TODO: size check? */
+ switch (mncc_prim->msg_type) {
+ case MNCC_SOCKET_HELLO:
+ if (hello->version != MNCC_SOCK_VERSION) {
+ PERROR("MNCC version different. BSC version is %u\n", hello->version);
+ mncc_fd_close(lcr_gsm, lfd);
+ return 0;
+ }
+ if (hello->mncc_size != sizeof(struct gsm_mncc)) {
+ PERROR("MNCC gsm_mncc size differs: %u %u\n",
+ hello->mncc_size, sizeof(struct gsm_mncc));
+ mncc_fd_close(lcr_gsm, lfd);
+ return 0;
+ }
+ if (hello->data_frame_size != sizeof(struct gsm_data_frame)) {
+ PERROR("MNCC gsm_mncc size differs: %u %u\n",
+ hello->data_frame_size, sizeof(struct gsm_data_frame));
+ mncc_fd_close(lcr_gsm, lfd);
+ return 0;
+ }
+
+#define CHECK_OFFSET(hello, field, lcr_gsm, lfd) \
+ if (hello->field ##_offset != __builtin_offsetof(struct gsm_mncc, field)) { \
+ PERROR("MNCC gsm_mncc offset of %s is %u %u\n", \
+ #field, hello->field ##_offset, \
+ __builtin_offsetof(struct gsm_mncc, field)); \
+ mncc_fd_close(lcr_gsm, lfd); \
+ return 0; \
+ }
+
+ CHECK_OFFSET(hello, called, lcr_gsm, lfd);
+ CHECK_OFFSET(hello, signal, lcr_gsm, lfd);
+ CHECK_OFFSET(hello, emergency, lcr_gsm, lfd);
+ CHECK_OFFSET(hello, lchan_type, lcr_gsm, lfd);
+#undef CHECK_OFFSET
+
+ break;
+ }
+
/* Hand the MNCC message into LCR */
switch (lcr_gsm->type) {
#ifdef WITH_GSM_BS