** **
**---------------------------------------------------------------------------**
** Copyright: Andreas Eversberg **
+** MNCC-Interface: Harald Welte **
** **
** mISDN gsm **
** **
\*****************************************************************************/
#include "main.h"
+#include "mncc.h"
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
extern "C" {
-#include "openbsc/openbsc.h"
-#include "openbsc/mncc.h"
-#include "openbsc/trau_frame.h"
-#include "bootstrap.h"
#include "gsm_audio.h"
-
-#undef AF_ISDN
-#undef PF_ISDN
-extern int AF_ISDN;
-#define PF_ISDN AF_ISDN
}
-struct lcr_gsm *gsm = NULL;
+#include <assert.h>
+
+#define SOCKET_RETRY_TIMER 5
+
+//struct lcr_gsm *gsm = NULL;
+
+int new_callref = 1;
+
+/* names of MNCC-SAP */
+static const struct _value_string {
+ int msg_type;
+ const char *name;
+} mncc_names[] = {
+ { 0, "New call ref" },
+ { 1, "Codec negotiation" },
+ { MNCC_SETUP_REQ, "MNCC_SETUP_REQ" },
+ { MNCC_SETUP_IND, "MNCC_SETUP_IND" },
+ { MNCC_SETUP_RSP, "MNCC_SETUP_RSP" },
+ { MNCC_SETUP_CNF, "MNCC_SETUP_CNF" },
+ { MNCC_SETUP_COMPL_REQ, "MNCC_SETUP_COMPL_REQ" },
+ { MNCC_SETUP_COMPL_IND, "MNCC_SETUP_COMPL_IND" },
+ { MNCC_CALL_CONF_IND, "MNCC_CALL_CONF_IND" },
+ { MNCC_CALL_PROC_REQ, "MNCC_CALL_PROC_REQ" },
+ { MNCC_PROGRESS_REQ, "MNCC_PROGRESS_REQ" },
+ { MNCC_ALERT_REQ, "MNCC_ALERT_REQ" },
+ { MNCC_ALERT_IND, "MNCC_ALERT_IND" },
+ { MNCC_NOTIFY_REQ, "MNCC_NOTIFY_REQ" },
+ { MNCC_NOTIFY_IND, "MNCC_NOTIFY_IND" },
+ { MNCC_DISC_REQ, "MNCC_DISC_REQ" },
+ { MNCC_DISC_IND, "MNCC_DISC_IND" },
+ { MNCC_REL_REQ, "MNCC_REL_REQ" },
+ { MNCC_REL_IND, "MNCC_REL_IND" },
+ { MNCC_REL_CNF, "MNCC_REL_CNF" },
+ { MNCC_FACILITY_REQ, "MNCC_FACILITY_REQ" },
+ { MNCC_FACILITY_IND, "MNCC_FACILITY_IND" },
+ { MNCC_START_DTMF_IND, "MNCC_START_DTMF_IND" },
+ { MNCC_START_DTMF_RSP, "MNCC_START_DTMF_RSP" },
+ { MNCC_START_DTMF_REJ, "MNCC_START_DTMF_REJ" },
+ { MNCC_STOP_DTMF_IND, "MNCC_STOP_DTMF_IND" },
+ { MNCC_STOP_DTMF_RSP, "MNCC_STOP_DTMF_RSP" },
+ { MNCC_MODIFY_REQ, "MNCC_MODIFY_REQ" },
+ { MNCC_MODIFY_IND, "MNCC_MODIFY_IND" },
+ { MNCC_MODIFY_RSP, "MNCC_MODIFY_RSP" },
+ { MNCC_MODIFY_CNF, "MNCC_MODIFY_CNF" },
+ { MNCC_MODIFY_REJ, "MNCC_MODIFY_REJ" },
+ { MNCC_HOLD_IND, "MNCC_HOLD_IND" },
+ { MNCC_HOLD_CNF, "MNCC_HOLD_CNF" },
+ { MNCC_HOLD_REJ, "MNCC_HOLD_REJ" },
+ { MNCC_RETRIEVE_IND, "MNCC_RETRIEVE_IND" },
+ { MNCC_RETRIEVE_CNF, "MNCC_RETRIEVE_CNF" },
+ { MNCC_RETRIEVE_REJ, "MNCC_RETRIEVE_REJ" },
+ { MNCC_USERINFO_REQ, "MNCC_USERINFO_REQ" },
+ { MNCC_USERINFO_IND, "MNCC_USERINFO_IND" },
+ { MNCC_REJ_REQ, "MNCC_REJ_REQ" },
+ { MNCC_REJ_IND, "MNCC_REJ_IND" },
+ { MNCC_PROGRESS_IND, "MNCC_PROGRESS_IND" },
+ { MNCC_CALL_PROC_IND, "MNCC_CALL_PROC_IND" },
+ { MNCC_CALL_CONF_REQ, "MNCC_CALL_CONF_REQ" },
+ { MNCC_START_DTMF_REQ, "MNCC_START_DTMF_REQ" },
+ { 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];
-static unsigned int new_callref = 1;
+ while (mncc_names[i].name) {
+ if (mncc_names[i].msg_type == value)
+ return mncc_names[i].name;
+ i++;
+ }
+ SPRINT(ukn, "unknown(0x%x)", value);
+ return ukn;
+}
+static int mncc_send(struct lcr_gsm *lcr_gsm, int msg_type, void *data);
/*
* create and send mncc message
*/
-static struct gsm_mncc *create_mncc(int msg_type, unsigned int callref)
+struct gsm_mncc *create_mncc(int msg_type, unsigned int callref)
{
struct gsm_mncc *mncc;
mncc->callref = callref;
return (mncc);
}
-static int send_and_free_mncc(void *net, unsigned int msg_type, void *data)
+int send_and_free_mncc(struct lcr_gsm *lcr_gsm, unsigned int msg_type, void *data)
{
- int ret;
+ int ret = 0;
- ret = mncc_send(net, msg_type, data);
+ if (lcr_gsm) {
+ ret = mncc_send(lcr_gsm, msg_type, data);
+ }
free(data);
return ret;
}
+void Pgsm::send_mncc_rtp_connect(void)
+{
+ struct gsm_mncc_rtp *nrtp;
+
+ nrtp = (struct gsm_mncc_rtp *) create_mncc(MNCC_RTP_CONNECT, p_g_callref);
+ nrtp->ip = p_g_rtp_ip_remote;
+ nrtp->port = p_g_rtp_port_remote;
+ switch (p_g_media_type) {
+ case MEDIA_TYPE_GSM:
+ nrtp->payload_msg_type = GSM_TCHF_FRAME;
+ break;
+ case MEDIA_TYPE_GSM_EFR:
+ nrtp->payload_msg_type = GSM_TCHF_FRAME_EFR;
+ break;
+ case MEDIA_TYPE_AMR:
+ nrtp->payload_msg_type = GSM_TCH_FRAME_AMR;
+ break;
+ case MEDIA_TYPE_GSM_HR:
+ nrtp->payload_msg_type = GSM_TCHH_FRAME;
+ break;
+ }
+ nrtp->payload_type = p_g_payload_type;
+ PDEBUG(DEBUG_GSM, "sending MNCC RTP connect with payload_msg_type=%x, payload_type=%d\n", nrtp->payload_msg_type, nrtp->payload_type);
+ send_and_free_mncc(p_g_lcr_gsm, nrtp->msg_type, nrtp);
+}
+
+static int delete_event(struct lcr_work *work, void *instance, int index);
/*
* constructor
*/
-Pgsm::Pgsm(int type, struct mISDNport *mISDNport, char *portname, struct port_settings *settings, int channel, int exclusive, int mode) : PmISDN(type, mISDNport, portname, settings, channel, exclusive, mode)
+Pgsm::Pgsm(int type, char *portname, struct port_settings *settings, struct interface *interface) : Port(type, portname, settings, interface)
{
- p_callerinfo.itype = (mISDNport->ifport->interface->extension)?INFO_ITYPE_ISDN_EXTENSION:INFO_ITYPE_ISDN;
- p_m_g_callref = 0;
- p_m_g_mode = 0;
- p_m_g_gsm_b_sock = -1;
- p_m_g_gsm_b_index = -1;
- p_m_g_gsm_b_active = 0;
- p_m_g_notify_pending = NULL;
- p_m_g_decoder = gsm_audio_create();
- p_m_g_encoder = gsm_audio_create();
- if (!p_m_g_encoder || !p_m_g_decoder) {
- PERROR("Failed to create GSM audio codec instance\n");
- p_m_delete = 1;
- }
- p_m_g_rxpos = 0;
- p_m_g_tch_connected = 0;
-
- PDEBUG(DEBUG_GSM, "Created new mISDNPort(%s).\n", portname);
+#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_earlyb = 0;
+ if (interface->is_earlyb == IS_YES)
+ p_g_earlyb = 1;
+ p_g_rtp_bridge = 0;
+ if (interface->rtp_bridge)
+ p_g_rtp_bridge = 1;
+ p_g_rtp_payloads = 0;
+ memset(&p_g_samples, 0, sizeof(p_g_samples));
+ p_callerinfo.itype = (interface->extension)?INFO_ITYPE_ISDN_EXTENSION:INFO_ITYPE_ISDN;
+ memset(&p_g_delete, 0, sizeof(p_g_delete));
+ add_work(&p_g_delete, delete_event, this, 0);
+ p_g_lcr_gsm = NULL;
+ p_g_callref = 0;
+ p_g_mode = 0;
+ p_g_gsm_b_sock = -1;
+ p_g_gsm_b_index = -1;
+ p_g_gsm_b_active = 0;
+ p_g_notify_pending = NULL;
+ p_g_setup_pending = NULL;
+ p_g_connect_pending = NULL;
+ 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;
+
+ PDEBUG(DEBUG_GSM, "Created new GSMPort(%s).\n", portname);
}
/*
{
PDEBUG(DEBUG_GSM, "Destroyed GSM process(%s).\n", p_name);
- /* remove queued message */
- if (p_m_g_notify_pending)
- message_free(p_m_g_notify_pending);
-
- /* close audio transfer socket */
- if (p_m_g_gsm_b_sock > -1)
- bchannel_close();
+ del_work(&p_g_delete);
+ /* remove queued message */
+ if (p_g_notify_pending)
+ message_free(p_g_notify_pending);
+ if (p_g_setup_pending)
+ message_free(p_g_setup_pending);
+ 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_m_g_encoder)
- gsm_audio_destroy(p_m_g_encoder);
- if (p_m_g_decoder)
- gsm_audio_destroy(p_m_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
}
-/* close bsc side bchannel */
-void Pgsm::bchannel_close(void)
+/* receive encoded frame from gsm */
+void Pgsm::frame_receive(void *arg)
{
- if (p_m_g_gsm_b_sock > -1)
- close(p_m_g_gsm_b_sock);
- p_m_g_gsm_b_sock = -1;
- p_m_g_gsm_b_index = -1;
- p_m_g_gsm_b_active = 0;
-}
+ struct gsm_data_frame *frame = (struct gsm_data_frame *)arg;
+ unsigned char data[160];
+ int i, cmr;
-/* open bsc side bchannel */
-int Pgsm::bchannel_open(int index)
-{
- int ret;
- unsigned int on = 1;
- struct sockaddr_mISDN addr;
- struct mISDNhead act;
+ if (!p_g_fr_decoder)
+ return;
- if (p_m_g_gsm_b_sock > -1) {
- PERROR("Socket already created for index %d\n", index);
- return(-EIO);
+ 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_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];
+ }
+#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++) {
+ data[i] = audio_s16_to_law[p_g_samples[i] & 0xffff];
+ }
+#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++) {
+ 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];
+ }
+ }
}
- /* open socket */
- ret = p_m_g_gsm_b_sock = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_B_RAW);
- if (ret < 0) {
- PERROR("Failed to open bchannel-socket for index %d\n", index);
- bchannel_close();
- return(ret);
- }
-
- /* set nonblocking io */
- ret = ioctl(p_m_g_gsm_b_sock, FIONBIO, &on);
- if (ret < 0) {
- PERROR("Failed to set bchannel-socket index %d into nonblocking IO\n", index);
- bchannel_close();
- return(ret);
- }
+ /* record data */
+ if (p_record)
+ record(data, 160, 0); // from down
+ if (p_tap)
+ tap(data, 160, 0); // from down
- /* bind socket to bchannel */
- addr.family = AF_ISDN;
- addr.dev = gsm->gsm_port;
- addr.channel = index+1+(index>15);
- ret = bind(p_m_g_gsm_b_sock, (struct sockaddr *)&addr, sizeof(addr));
- if (ret < 0) {
- PERROR("Failed to bind bchannel-socket for index %d\n", index);
- bchannel_close();
- return(ret);
- }
- /* activate bchannel */
- PDEBUG(DEBUG_GSM, "Activating GSM side channel index %i.\n", index);
- act.prim = PH_ACTIVATE_REQ;
- act.id = 0;
- ret = sendto(p_m_g_gsm_b_sock, &act, MISDN_HEADER_LEN, 0, NULL, 0);
- if (ret < 0) {
- PERROR("Failed to activate index %d\n", index);
- bchannel_close();
- return(ret);
- }
+ /* local echo */
+ if (p_echotest)
+ bridge_rx(data, 160);
- p_m_g_gsm_b_index = index;
+ /* send to remote*/
+ bridge_tx(data, 160);
+}
- return(0);
+/* send traffic to gsm */
+int Pgsm::bridge_rx(unsigned char *data, int len)
+{
+ if (p_tone_name[0])
+ return -EINVAL;
+
+ return audio_send(data, len);
}
-/* receive from bchannel */
-void Pgsm::bchannel_receive(struct mISDNhead *hh, unsigned char *data, int len)
+int Pgsm::audio_send(unsigned char *data, int len)
{
- int i, j, k;
unsigned char frame[33];
- struct decoded_trau_frame tf;
+ int ret;
+
+ /* record data */
+ if (p_record)
+ record(data, len, 1); // from up
+ if (p_tap)
+ tap(data, len, 1); // from up
/* encoder init failed */
- if (!p_m_g_encoder)
- return;
+ if (!p_g_fr_encoder)
+ return -EINVAL;
/* (currently) not connected, so don't flood tch! */
- if (!p_m_g_tch_connected)
- return;
+ if (!p_g_tch_connected)
+ return -EINVAL;
/* write to rx buffer */
while(len--) {
- p_m_g_rxdata[p_m_g_rxpos++] = audio_law_to_s32[*data++];
- if (p_m_g_rxpos == 160) {
- p_m_g_rxpos = 0;
-
+ p_g_rxdata[p_g_rxpos++] = audio_law_to_s32[*data++];
+ 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_audio_encode(p_m_g_encoder, p_m_g_rxdata, frame);
-
- /* set c-bits and t-bits */
- tf.c_bits[0] = 1;
- tf.c_bits[1] = 1;
- tf.c_bits[2] = 1;
- tf.c_bits[3] = 0;
- tf.c_bits[4] = 0;
- memset(&tf.c_bits[5], 0, 6);
- memset(&tf.c_bits[11], 1, 10);
- memset(&tf.t_bits[0], 1, 4);
-
- /* reassemble d-bits */
- i = 0;
- j = 0;
- k = 0;
- while(i < 260) {
- tf.d_bits[i] = (frame[j] >> k) & 1;
- if (++k == 8) {
- k = 0;
- j++;
- }
- i++;
+ 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;
}
-
- trau_send(&tf);
+#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_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;
}
}
-}
-
-/* transmit to bchannel */
-void Pgsm::bchannel_send(unsigned int prim, unsigned int id, unsigned char *data, int len)
-{
- unsigned char buf[MISDN_HEADER_LEN+len];
- struct mISDNhead *hh = (struct mISDNhead *)buf;
- int ret;
- if (!p_m_g_gsm_b_active)
- return;
-
- /* make and send frame */
- hh->prim = PH_DATA_REQ;
- hh->id = 0;
- memcpy(buf+MISDN_HEADER_LEN, data, len);
- ret = sendto(p_m_g_gsm_b_sock, buf, MISDN_HEADER_LEN+len, 0, NULL, 0);
- if (ret <= 0)
- PERROR("Failed to send to socket index %d\n", index);
+ return 0;
}
-void Pgsm::trau_send(void *_tf)
+void Pgsm::frame_send(void *_frame, int len, int msg_type)
{
- struct decoded_trau_frame *tf = (struct decoded_trau_frame *)_tf;
- unsigned char data[sizeof(struct gsm_trau_frame) + sizeof(struct decoded_trau_frame)];
- struct gsm_trau_frame *frame = (struct gsm_trau_frame *)data;
+ unsigned char buffer[sizeof(struct gsm_data_frame) + len];
+ struct gsm_data_frame *frame = (struct gsm_data_frame *)buffer;
- frame->msg_type = GSM_TRAU_FRAME;
- frame->callref = p_m_g_callref;
- memcpy(frame->data, tf, sizeof(struct decoded_trau_frame));
- mncc_send(gsm->network, frame->msg_type, frame);
-}
-
-
-void Pgsm::trau_receive(void *_frame)
-{
- struct gsm_trau_frame *frm = (struct gsm_trau_frame *)_frame;
- struct decoded_trau_frame *tf = (struct decoded_trau_frame *)frm->data;
-//struct decoded_trau_frame *tf = (struct decoded_trau_frame *)_frame;
- unsigned char frame[33];
- signed short samples[160];
- unsigned char data[160];
- int i, j, k;
-
- if (!p_m_g_decoder)
- return;
+ frame->msg_type = msg_type;
+ frame->callref = p_g_callref;
+ memcpy(frame->data, _frame, len);
-// printf("got trau %d %d %d %d %d\n", tf->c_bits[0], tf->c_bits[1], tf->c_bits[2], tf->c_bits[3], tf->c_bits[4]);
- if (tf->c_bits[0]!=0 || tf->c_bits[1]!=0 || tf->c_bits[2]!=0 || tf->c_bits[3]!=1 || tf->c_bits[4]!=0)
- PERROR("illegal trau (C1-C5) %d %d %d %d %d\n", tf->c_bits[0], tf->c_bits[1], tf->c_bits[2], tf->c_bits[3], tf->c_bits[4]);
-
- /* set GSM_MAGIC */
- memset(&frame, 0, sizeof(frame));
-// frame[0] = 0xd << 4;
-
- /* reassemble bits */
- i = 0;
- j = 0;
- k = 0;
- while(i < 260) {
- if (tf->d_bits[i] > 1)
- PERROR("fix!\n");
- frame[j] |= (tf->d_bits[i] << k);
- if (++k == 8) {
- k = 0;
- j++;
- }
- i++;
- }
-
- /* decode */
- gsm_audio_decode(p_m_g_decoder, frame, samples);
- for (i = 0; i < 160; i++) {
- data[i] = audio_s16_to_law[samples[i] & 0xffff];
+ if (p_g_lcr_gsm) {
+ mncc_send(p_g_lcr_gsm, frame->msg_type, frame);
}
-
- /* send */
- bchannel_send(PH_DATA_REQ, 0, data, 160);
}
-
/*
* create trace
- **/
-static void gsm_trace_header(struct mISDNport *mISDNport, class PmISDN *port, unsigned int msg_type, int direction)
+ */
+void gsm_trace_header(const char *interface_name, class Pgsm *port, unsigned int msg_type, int direction)
{
char msgtext[64];
+ struct interface *interface = interface_first;
+
+ interface = getinterfacebyname(interface_name);
+ if (!interface)
+ return;
/* select message and primitive text */
- SCPY(msgtext, get_mncc_name(msg_type));
+ SCPY(msgtext, mncc_name(msg_type));
/* add direction */
- if (direction == DIRECTION_OUT)
- SCAT(msgtext, " MSC->BSC");
- else
- SCAT(msgtext, " MSC<-BSC");
+ if (port) {
+ switch(port->p_type) {
+ case PORT_TYPE_GSM_BS_OUT:
+ case PORT_TYPE_GSM_BS_IN:
+ SCAT(msgtext, " LCR<->BSC");
+ break;
+ case PORT_TYPE_GSM_MS_OUT:
+ case PORT_TYPE_GSM_MS_IN:
+ SCAT(msgtext, " LCR<->MS");
+ break;
+ }
+ } else
+ SCAT(msgtext, " ----");
/* init trace with given values */
- start_trace(mISDNport?mISDNport->portnum:-1,
- mISDNport?(mISDNport->ifport?mISDNport->ifport->interface:NULL):NULL,
+ start_trace(-1,
+ interface,
port?numberrize_callerinfo(port->p_callerinfo.id, port->p_callerinfo.ntype, options.national, options.international):NULL,
port?port->p_dialinginfo.id:NULL,
direction,
msgtext);
}
-
-
-/* select bchannel */
-int Pgsm::hunt_bchannel(void)
-{
- int channel;
- int i;
-
- chan_trace_header(p_m_mISDNport, this, "CHANNEL SELECTION (setup)", DIRECTION_NONE);
- add_trace("channel", "reserved", "%d", p_m_mISDNport->b_reserved);
- if (p_m_mISDNport->b_reserved >= p_m_mISDNport->b_num) { // of out chan..
- add_trace("conclusion", NULL, "all channels are reserved");
- end_trace();
- return(-34); // no channel
- }
- /* find channel */
- i = 0;
- channel = 0;
- while(i < p_m_mISDNport->b_num) {
- if (p_m_mISDNport->b_port[i] == NULL) {
- channel = i+1+(i>=15);
- break;
- }
- i++;
- }
- if (!channel) {
- add_trace("conclusion", NULL, "no channel available");
- end_trace();
- return(-6); // channel unacceptable
- }
- add_trace("conclusion", NULL, "channel available");
- add_trace("connect", "channel", "%d", channel);
- end_trace();
- return(channel);
-}
-
-
-/*
- * handles all indications
- */
-/* SETUP INDICATION */
-void Pgsm::setup_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
+/* modify lchan to given payload type */
+void Pgsm::modify_lchan(int media_type)
{
- int ret;
- class Endpoint *epoint;
- struct lcr_msg *message;
- int channel;
- struct gsm_mncc *mode, *proceeding, *frame;
-
- /* emergency shutdown */
- printf("%d %d\n", mncc->emergency, !gsm->conf.noemergshut);
- if (mncc->emergency && !gsm->conf.noemergshut) {
- start_trace(p_m_mISDNport->portnum,
- p_m_mISDNport->ifport->interface,
- NULL,
- NULL,
- DIRECTION_NONE,
- CATEGORY_CH,
- 0,
- "EMERGENCY SHUTDOWN (due to received emergency call)");
- end_trace();
- quit = 1;
- }
- /* process given callref */
- l1l2l3_trace_header(p_m_mISDNport, this, L3_NEW_L3ID_IND, DIRECTION_IN);
- add_trace("callref", "new", "0x%x", callref);
- if (p_m_g_callref) {
- /* release in case the ID is already in use */
- add_trace("error", NULL, "callref already in use");
- end_trace();
- gsm_trace_header(p_m_mISDNport, this, MNCC_REJ_REQ, DIRECTION_OUT);
- add_trace("cause", "location", "1");
- add_trace("cause", "value", "47");
- add_trace("reason", NULL, "callref already in use");
- end_trace();
- mncc = create_mncc(MNCC_REJ_REQ, callref);
- mncc->cause = 1;
- mncc->cause_location = 1;
- mncc->cause_value = 47;
- send_and_free_mncc(gsm->network, mncc->msg_type, mncc);
- new_state(PORT_STATE_RELEASE);
- p_m_delete = 1;
- return;
- }
- p_m_g_callref = callref;
- end_trace();
+ struct gsm_mncc *mode;
- /* if blocked, release call with MT_RELEASE_COMPLETE */
- if (p_m_mISDNport->ifport->block) {
- gsm_trace_header(p_m_mISDNport, this, MNCC_REJ_REQ, DIRECTION_OUT);
- add_trace("cause", "location", "1");
- add_trace("cause", "value", "27");
- add_trace("reason", NULL, "port blocked");
- end_trace();
- mncc = create_mncc(MNCC_REJ_REQ, p_m_g_callref);
- mncc->cause = 1;
- mncc->cause_location = 1;
- mncc->cause_value = 27;
- send_and_free_mncc(gsm->network, mncc->msg_type, mncc);
- new_state(PORT_STATE_RELEASE);
- p_m_delete = 1;
+ /* already modified to that media type */
+ if (p_g_media_type == media_type)
return;
- }
- /* caller info */
- if (mncc->clir_inv)
- p_callerinfo.present = INFO_PRESENT_RESTRICTED;
- else
- p_callerinfo.present = INFO_PRESENT_ALLOWED;
- if (mncc->calling_number[0])
- SCPY(p_callerinfo.id, mncc->calling_number);
- else
- p_callerinfo.present = INFO_PRESENT_NOTAVAIL;
- p_callerinfo.screen = INFO_SCREEN_NETWORK;
- p_callerinfo.ntype = INFO_NTYPE_UNKNOWN;
- p_callerinfo.isdn_port = p_m_portnum;
- SCPY(p_callerinfo.interface, p_m_mISDNport->ifport->interface->name);
-
- /* dialing information */
- SCAT(p_dialinginfo.id, mncc->called_number);
- switch (mncc->called_type) {
- case 0x1:
- p_dialinginfo.ntype = INFO_NTYPE_INTERNATIONAL;
- break;
- case 0x2:
- p_dialinginfo.ntype = INFO_NTYPE_NATIONAL;
- break;
- case 0x4:
- p_dialinginfo.ntype = INFO_NTYPE_SUBSCRIBER;
+ p_g_media_type = media_type;
+ gsm_trace_header(p_interface_name, this, MNCC_LCHAN_MODIFY, DIRECTION_OUT);
+ mode = create_mncc(MNCC_LCHAN_MODIFY, p_g_callref);
+ switch (media_type) {
+ case MEDIA_TYPE_GSM_EFR:
+ add_trace("speech", "version", "EFR given");
+ mode->lchan_mode = 0x21; /* GSM V2 */
break;
- default:
- p_dialinginfo.ntype = INFO_NTYPE_UNKNOWN;
+ case MEDIA_TYPE_AMR:
+ add_trace("speech", "version", "AMR given");
+ mode->lchan_mode = 0x41; /* GSM V3 */
break;
+ default:
+ add_trace("speech", "version", "Full/Half Rate given");
+ mode->lchan_mode = 0x01; /* GSM V1 */
}
- if (mncc->emergency) {
- SCPY(p_dialinginfo.id, "emergency");
- }
- p_dialinginfo.sending_complete = 1;
-
- /* bearer capability */
- // todo
- p_capainfo.bearer_capa = INFO_BC_SPEECH;
- p_capainfo.bearer_info1 = (options.law=='a')?3:2;
- p_capainfo.bearer_mode = INFO_BMODE_CIRCUIT;
- p_capainfo.source_mode = B_MODE_TRANSPARENT;
- p_m_g_mode = p_capainfo.source_mode;
-
- /* useruser */
-
- /* hunt channel */
- ret = channel = hunt_bchannel();
- if (ret < 0)
- goto no_channel;
-
- /* open channel */
- ret = seize_bchannel(channel, 1);
- if (ret < 0) {
- no_channel:
- gsm_trace_header(p_m_mISDNport, this, MNCC_REJ_REQ, DIRECTION_OUT);
- add_trace("cause", "location", "1");
- add_trace("cause", "value", "34");
- add_trace("reason", NULL, "no channel");
- end_trace();
- mncc = create_mncc(MNCC_REJ_REQ, p_m_g_callref);
- mncc->cause = 1;
- mncc->cause_location = 1;
- mncc->cause_value = 34;
- send_and_free_mncc(gsm->network, mncc->msg_type, mncc);
- new_state(PORT_STATE_RELEASE);
- p_m_delete = 1;
- return;
- }
- bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_USE);
- if (bchannel_open(p_m_b_index))
- goto no_channel;
-
- /* what infos did we got ... */
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
- add_trace("subscr", "number", "%s", p_callerinfo.id);
- add_trace("dialing", "number", "%s", p_dialinginfo.id);
- end_trace();
-
- /* create endpoint */
- if (p_epointlist)
- FATAL("Incoming call but already got an endpoint.\n");
- if (!(epoint = new Endpoint(p_serial, 0)))
- FATAL("No memory for Endpoint instance\n");
- if (!(epoint->ep_app = new DEFAULT_ENDPOINT_APP(epoint, 0))) //incoming
- FATAL("No memory for Endpoint Application instance\n");
- epointlist_new(epoint->ep_serial);
-
- /* modify lchan to GSM codec V1 */
- gsm_trace_header(p_m_mISDNport, this, MNCC_LCHAN_MODIFY, DIRECTION_OUT);
- end_trace();
- mode = create_mncc(MNCC_LCHAN_MODIFY, p_m_g_callref);
- mode->lchan_mode = 0x01; /* GSM V1 */
+ mode->lchan_type = 0x02; /* FIXME: unused */
add_trace("mode", NULL, "0x%02x", mode->lchan_mode);
- send_and_free_mncc(gsm->network, mode->msg_type, mode);
-
- /* send call proceeding */
- gsm_trace_header(p_m_mISDNport, this, MNCC_CALL_PROC_REQ, DIRECTION_OUT);
- proceeding = create_mncc(MNCC_CALL_PROC_REQ, p_m_g_callref);
- if (p_m_mISDNport->tones) {
- proceeding->progress = 1;
- proceeding->progress_coding = 3; /* GSM */
- proceeding->progress_location = 1;
- proceeding->progress_descr = 8;
- add_trace("progress", "coding", "%d", proceeding->progress_coding);
- add_trace("progress", "location", "%d", proceeding->progress_location);
- add_trace("progress", "descr", "%d", proceeding->progress_descr);
- }
- send_and_free_mncc(gsm->network, proceeding->msg_type, proceeding);
end_trace();
-
- new_state(PORT_STATE_IN_PROCEEDING);
-
- if (p_m_mISDNport->tones && !p_m_g_tch_connected) { /* only if ... */
- gsm_trace_header(p_m_mISDNport, this, MNCC_FRAME_RECV, DIRECTION_OUT);
- end_trace();
- frame = create_mncc(MNCC_FRAME_RECV, p_m_g_callref);
- send_and_free_mncc(gsm->network, frame->msg_type, frame);
- p_m_g_tch_connected = 1;
- }
-
- /* send setup message to endpoit */
- message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_SETUP);
- message->param.setup.isdn_port = p_m_portnum;
- message->param.setup.port_type = p_type;
-// message->param.setup.dtmf = 0;
- memcpy(&message->param.setup.dialinginfo, &p_dialinginfo, sizeof(struct dialing_info));
- memcpy(&message->param.setup.callerinfo, &p_callerinfo, sizeof(struct caller_info));
- memcpy(&message->param.setup.capainfo, &p_capainfo, sizeof(struct capa_info));
- SCPY((char *)message->param.setup.useruser.data, (char *)mncc->useruser_info);
- message->param.setup.useruser.len = strlen(mncc->useruser_info);
- message->param.setup.useruser.protocol = mncc->useruser_proto;
- message_put(message);
+ send_and_free_mncc(p_g_lcr_gsm, mode->msg_type, mode);
}
-/* DTMF INDICATION */
-void Pgsm::start_dtmf_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
+/* CALL PROCEEDING INDICATION (from network) */
+void Pgsm::call_proc_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
{
struct lcr_msg *message;
- struct gsm_mncc *resp;
-
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
- add_trace("keypad", NULL, "%c", mncc->keypad);
- end_trace();
- SPRINT(p_dialinginfo.id, "%c", mncc->keypad);
- p_dialinginfo.ntype = INFO_NTYPE_UNKNOWN;
+ struct gsm_mncc *frame;
- /* send resp */
- gsm_trace_header(p_m_mISDNport, this, MNCC_START_DTMF_RSP, DIRECTION_OUT);
- add_trace("keypad", NULL, "%c", mncc->keypad);
+ gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
end_trace();
- resp = create_mncc(MNCC_START_DTMF_RSP, p_m_g_callref);
- resp->keypad = mncc->keypad;
- send_and_free_mncc(gsm->network, resp->msg_type, resp);
- /* send dialing information */
- message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_INFORMATION);
- memcpy(&message->param.information, &p_dialinginfo, sizeof(struct dialing_info));
+ message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROCEEDING);
message_put(message);
-}
-void Pgsm::stop_dtmf_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
-{
- struct gsm_mncc *resp;
-
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
- add_trace("keypad", NULL, "%c", mncc->keypad);
- end_trace();
-
- /* send resp */
- gsm_trace_header(p_m_mISDNport, this, MNCC_STOP_DTMF_RSP, DIRECTION_OUT);
- add_trace("keypad", NULL, "%c", mncc->keypad);
- end_trace();
- resp = create_mncc(MNCC_STOP_DTMF_RSP, p_m_g_callref);
- resp->keypad = mncc->keypad;
- send_and_free_mncc(gsm->network, resp->msg_type, resp);
-}
-/* PROCEEDING INDICATION */
-void Pgsm::call_conf_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
-{
- struct gsm_mncc *mode;
+ new_state(PORT_STATE_OUT_PROCEEDING);
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
- if (mncc->cause) {
- add_trace("cause", "location", "%", mncc->cause_location);
- add_trace("cause", "value", "%", mncc->cause_value);
+ if (p_g_earlyb && !p_g_tch_connected) { /* only if ... */
+ gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
+ end_trace();
+ frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
+ send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
+ p_g_tch_connected = 1;
}
- end_trace();
-
- /* modify lchan to GSM codec V1 */
- gsm_trace_header(p_m_mISDNport, this, MNCC_LCHAN_MODIFY, DIRECTION_OUT);
- end_trace();
- mode = create_mncc(MNCC_LCHAN_MODIFY, p_m_g_callref);
- mode->lchan_mode = 0x01; /* GSM V1 */
- add_trace("mode", NULL, "0x%02x", mode->lchan_mode);
- send_and_free_mncc(gsm->network, mode->msg_type, mode);
+ /* modify to GSM FR (this is GSM user side only, so there is FR supported only) */
+ modify_lchan(MEDIA_TYPE_GSM);
}
/* ALERTING INDICATION */
void Pgsm::alert_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
{
struct lcr_msg *message;
+ struct gsm_mncc *frame;
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
+ gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
end_trace();
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_ALERTING);
new_state(PORT_STATE_OUT_ALERTING);
+ if (p_g_earlyb && !p_g_tch_connected) { /* only if ... */
+ gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
+ end_trace();
+ frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
+ 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 */
struct gsm_mncc *resp, *frame;
struct lcr_msg *message;
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
+ SCPY(p_connectinfo.id, mncc->connected.number);
+ SCPY(p_connectinfo.imsi, mncc->imsi);
+ p_connectinfo.present = INFO_PRESENT_ALLOWED;
+ p_connectinfo.screen = INFO_SCREEN_NETWORK;
+ p_connectinfo.ntype = INFO_NTYPE_UNKNOWN;
+ SCPY(p_connectinfo.interface, p_interface_name);
+
+ gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
+ if (p_connectinfo.id[0])
+ add_trace("connect", "number", "%s", p_connectinfo.id);
+ else if (mncc->imsi[0])
+ SPRINT(p_connectinfo.id, "imsi-%s", p_connectinfo.imsi);
+ if (mncc->imsi[0])
+ add_trace("connect", "imsi", "%s", p_connectinfo.imsi);
end_trace();
/* send resp */
- gsm_trace_header(p_m_mISDNport, this, MNCC_SETUP_COMPL_REQ, DIRECTION_OUT);
- resp = create_mncc(MNCC_SETUP_COMPL_REQ, p_m_g_callref);
+ gsm_trace_header(p_interface_name, this, MNCC_SETUP_COMPL_REQ, DIRECTION_OUT);
+ resp = create_mncc(MNCC_SETUP_COMPL_REQ, p_g_callref);
end_trace();
- send_and_free_mncc(gsm->network, resp->msg_type, resp);
-
- message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_CONNECT);
- message_put(message);
+ send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
new_state(PORT_STATE_CONNECT);
- if (!p_m_g_tch_connected) { /* only if ... */
- gsm_trace_header(p_m_mISDNport, this, MNCC_FRAME_RECV, DIRECTION_OUT);
+ if (!p_g_tch_connected) { /* only if ... */
+ gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
end_trace();
- frame = create_mncc(MNCC_FRAME_RECV, p_m_g_callref);
- send_and_free_mncc(gsm->network, frame->msg_type, frame);
- p_m_g_tch_connected = 1;
+ frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
+ send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
+ p_g_tch_connected = 1;
+ }
+
+ message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_CONNECT);
+ memcpy(&message->param.connectinfo, &p_connectinfo, sizeof(struct connect_info));
+
+ /* if we have a bridge, but not yet modified, the phone accepts out requested payload.
+ * we force the first in list */
+ if (p_g_rtp_bridge) {
+ if (!p_g_media_type) {
+ /* modify to first given type */
+ modify_lchan(p_g_rtp_media_types[0]);
+ /* also set payload type */
+ p_g_payload_type = p_g_rtp_payload_types[0];
+ }
+ 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;
+
+ PDEBUG(DEBUG_GSM, "Request RTP peer info, before forwarding connect msg\n");
+ p_g_connect_pending = message;
+ rtp = (struct gsm_mncc_rtp *) create_mncc(MNCC_RTP_CREATE, p_g_callref);
+ send_and_free_mncc(p_g_lcr_gsm, rtp->msg_type, rtp);
+ } else
+ message_put(message);
}
/* CONNECT ACK INDICATION */
{
struct gsm_mncc *frame;
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
+ gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
end_trace();
new_state(PORT_STATE_CONNECT);
- if (!p_m_g_tch_connected) { /* only if ... */
- gsm_trace_header(p_m_mISDNport, this, MNCC_FRAME_RECV, DIRECTION_OUT);
+ if (!p_g_tch_connected) { /* only if ... */
+ gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
end_trace();
- frame = create_mncc(MNCC_FRAME_RECV, p_m_g_callref);
- send_and_free_mncc(gsm->network, frame->msg_type, frame);
- p_m_g_tch_connected = 1;
+ frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
+ 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);
}
}
int cause = 16, location = 0;
struct gsm_mncc *resp;
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
- if (mncc->cause) {
- location = mncc->cause_location;
- cause = mncc->cause_value;
+ gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
+ if (mncc->fields & MNCC_F_CAUSE) {
+ location = mncc->cause.location;
+ cause = mncc->cause.value;
+ add_trace("cause", "coding", "%d", mncc->cause.coding);
add_trace("cause", "location", "%d", location);
add_trace("cause", "value", "%d", cause);
}
end_trace();
/* send release */
- gsm_trace_header(p_m_mISDNport, this, MNCC_REL_REQ, DIRECTION_OUT);
- add_trace("cause", "location", "%d", 1);
- add_trace("cause", "value", "%d", cause);
+ resp = create_mncc(MNCC_REL_REQ, p_g_callref);
+ gsm_trace_header(p_interface_name, this, MNCC_REL_REQ, DIRECTION_OUT);
+#if 0
+ resp->fields |= MNCC_F_CAUSE;
+ resp->cause.coding = 3;
+ resp->cause.location = 1;
+ resp->cause.value = cause;
+ add_trace("cause", "coding", "%d", resp->cause.coding);
+ add_trace("cause", "location", "%d", resp->cause.location);
+ add_trace("cause", "value", "%d", resp->cause.value);
+#endif
end_trace();
- resp = create_mncc(MNCC_REL_REQ, p_m_g_callref);
- resp->cause = 1;
- resp->cause_location = 1;
- resp->cause_value = cause;
- send_and_free_mncc(gsm->network, resp->msg_type, resp);
+ send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
/* sending release to endpoint */
while(p_epointlist) {
free_epointlist(p_epointlist);
}
new_state(PORT_STATE_RELEASE);
- p_m_delete = 1;
+ trigger_work(&p_g_delete);
}
/* CC_RELEASE INDICATION */
int location = 0, cause = 16;
struct lcr_msg *message;
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
- if (mncc->cause) {
- location = mncc->cause_location;
- cause = mncc->cause_value;
- add_trace("cause", "location", "%d", location);
- add_trace("cause", "value", "%d", cause);
+ gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
+ if (mncc->fields & MNCC_F_CAUSE) {
+ location = mncc->cause.location;
+ cause = mncc->cause.value;
+ add_trace("cause", "coding", "%d", mncc->cause.coding);
+ add_trace("cause", "location", "%d", mncc->cause.location);
+ add_trace("cause", "value", "%d", mncc->cause.value);
}
end_trace();
free_epointlist(p_epointlist);
}
new_state(PORT_STATE_RELEASE);
- p_m_delete = 1;
+ trigger_work(&p_g_delete);
}
/* NOTIFY INDICATION */
void Pgsm::notify_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
{
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
- end_trace();
-}
-
-
-/* HOLD INDICATION */
-void Pgsm::hold_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
-{
struct lcr_msg *message;
- struct gsm_mncc *resp, *frame;
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
+ gsm_trace_header(p_interface_name, this, msg_type, DIRECTION_IN);
+ add_trace("notify", NULL, "%d", mncc->notify);
end_trace();
- /* notify the hold of call */
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_NOTIFY);
- message->param.notifyinfo.notify = INFO_NOTIFY_REMOTE_HOLD;
- message->param.notifyinfo.local = 1; /* call is held by supplementary service */
+ message->param.notifyinfo.notify = mncc->notify;
message_put(message);
-
- /* acknowledge hold */
- gsm_trace_header(p_m_mISDNport, this, MNCC_HOLD_CNF, DIRECTION_OUT);
- end_trace();
- resp = create_mncc(MNCC_HOLD_CNF, p_m_g_callref);
- send_and_free_mncc(gsm->network, resp->msg_type, resp);
-
- /* disable audio */
- if (p_m_g_tch_connected) { /* it should be true */
- gsm_trace_header(p_m_mISDNport, this, MNCC_FRAME_DROP, DIRECTION_OUT);
- end_trace();
- frame = create_mncc(MNCC_FRAME_DROP, p_m_g_callref);
- send_and_free_mncc(gsm->network, frame->msg_type, frame);
- p_m_g_tch_connected = 0;
- }
}
-
-/* RETRIEVE INDICATION */
-void Pgsm::retr_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
+/* MESSAGE_NOTIFY */
+void Pgsm::message_notify(unsigned int epoint_id, int message_id, union parameter *param)
{
- struct lcr_msg *message;
- struct gsm_mncc *resp, *frame;
-
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
- end_trace();
-
- /* notify the retrieve of call */
- message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_NOTIFY);
- message->param.notifyinfo.notify = INFO_NOTIFY_REMOTE_RETRIEVAL;
- message->param.notifyinfo.local = 1; /* call is retrieved by supplementary service */
- message_put(message);
-
- /* acknowledge retr */
- gsm_trace_header(p_m_mISDNport, this, MNCC_RETRIEVE_CNF, DIRECTION_OUT);
- end_trace();
- resp = create_mncc(MNCC_RETRIEVE_CNF, p_m_g_callref);
- send_and_free_mncc(gsm->network, resp->msg_type, resp);
+ struct gsm_mncc *mncc;
+ int notify;
- /* enable audio */
- if (!p_m_g_tch_connected) { /* it should be true */
- gsm_trace_header(p_m_mISDNport, this, MNCC_FRAME_RECV, DIRECTION_OUT);
- end_trace();
- frame = create_mncc(MNCC_FRAME_RECV, p_m_g_callref);
- send_and_free_mncc(gsm->network, frame->msg_type, frame);
- p_m_g_tch_connected = 1;
+// printf("if = %d\n", param->notifyinfo.notify);
+ if (param->notifyinfo.notify>INFO_NOTIFY_NONE) {
+ notify = param->notifyinfo.notify & 0x7f;
+ 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)
+ message_free(p_g_notify_pending);
+ p_g_notify_pending = message_create(ACTIVE_EPOINT(p_epointlist), p_serial, EPOINT_TO_PORT, message_id);
+ memcpy(&p_g_notify_pending->param, param, sizeof(union parameter));
+ } else {
+ /* sending notification */
+ gsm_trace_header(p_interface_name, this, MNCC_NOTIFY_REQ, DIRECTION_OUT);
+ add_trace("notify", NULL, "%d", notify);
+ end_trace();
+ mncc = create_mncc(MNCC_NOTIFY_REQ, p_g_callref);
+ mncc->notify = notify;
+ send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
+ }
}
}
-/*
- * BSC sends message to port
- */
-static int message_bcs(void *net, int msg_type, void *arg)
+/* RTP create indication */
+void Pgsm::rtp_create_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
{
- struct gsm_mncc *mncc = (struct gsm_mncc *)arg;
- unsigned int callref = mncc->callref;
- class Port *port;
- class Pgsm *pgsm = NULL;
- char name[64];
- struct mISDNport *mISDNport;
+ struct gsm_mncc_rtp *rtp = (struct gsm_mncc_rtp *) mncc;
- /* Special messages */
- switch(msg_type) {
- }
+ /* send queued setup, as we received remote RTP info */
+ if (p_g_setup_pending) {
+ struct lcr_msg *message;
- /* find callref */
- callref = mncc->callref;
- port = port_first;
- while(port) {
- if ((port->p_type & PORT_CLASS_mISDN_MASK) == PORT_CLASS_mISDN_GSM) {
- pgsm = (class Pgsm *)port;
- if (pgsm->p_m_g_callref == callref) {
- break;
- }
- }
- port = port->next;
- }
-
- if (msg_type == GSM_TRAU_FRAME) {
- if (port)
- pgsm->trau_receive((struct gsm_trau_frame *)arg);
- return 0;
- }
-
- if (!port) {
- if (msg_type != MNCC_SETUP_IND)
- return(0);
- /* find gsm port */
- mISDNport = mISDNport_first;
- while(mISDNport) {
- if (mISDNport->gsm)
- break;
- mISDNport = mISDNport->next;
- }
- if (!mISDNport) {
- struct gsm_mncc *rej;
-
- gsm_trace_header(NULL, NULL, MNCC_REJ_REQ, DIRECTION_OUT);
- add_trace("cause", "location", "1");
- add_trace("cause", "value", "27");
- add_trace("reason", NULL, "GSM port not loaded");
- end_trace();
- rej = create_mncc(MNCC_REJ_REQ, callref);
- rej->cause = 1;
- rej->cause_location = 1;
- rej->cause_value = 27;
- send_and_free_mncc(gsm->network, rej->msg_type, rej);
- return 0;
- }
- /* creating port object, transparent until setup with hdlc */
- SPRINT(name, "%s-%d-in", mISDNport->ifport->interface->name, mISDNport->portnum);
- if (!(pgsm = new Pgsm(PORT_TYPE_GSM_IN, mISDNport, name, NULL, 0, 0, B_MODE_TRANSPARENT)))
-
- FATAL("Cannot create Port instance.\n");
+ message = p_g_setup_pending;
+ PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) forwarding setup\n", rtp->ip, rtp->port);
+ message->param.setup.rtpinfo.ip = rtp->ip;
+ message->param.setup.rtpinfo.port = rtp->port;
+ message_put(message);
+ p_g_setup_pending = NULL;
}
-
- switch(msg_type) {
- case MNCC_SETUP_IND:
- pgsm->setup_ind(msg_type, callref, mncc);
- break;
-
- case MNCC_START_DTMF_IND:
- pgsm->start_dtmf_ind(msg_type, callref, mncc);
- break;
-
- case MNCC_STOP_DTMF_IND:
- pgsm->stop_dtmf_ind(msg_type, callref, mncc);
- break;
-
- case MNCC_CALL_CONF_IND:
- pgsm->call_conf_ind(msg_type, callref, mncc);
- break;
-
- case MNCC_ALERT_IND:
- pgsm->alert_ind(msg_type, callref, mncc);
- break;
-
- case MNCC_SETUP_CNF:
- pgsm->setup_cnf(msg_type, callref, mncc);
- break;
-
- case MNCC_SETUP_COMPL_IND:
- pgsm->setup_compl_ind(msg_type, callref, mncc);
- break;
-
- case MNCC_DISC_IND:
- pgsm->disc_ind(msg_type, callref, mncc);
- break;
-
- case MNCC_REL_IND:
- case MNCC_REL_CNF:
- pgsm->rel_ind(msg_type, callref, mncc);
- break;
-
- case MNCC_NOTIFY_IND:
- pgsm->notify_ind(msg_type, callref, mncc);
- break;
-
- case MNCC_HOLD_IND:
- pgsm->hold_ind(msg_type, callref, mncc);
- break;
-
- case MNCC_RETRIEVE_IND:
- pgsm->retr_ind(msg_type, callref, mncc);
- break;
-
- default:
- PDEBUG(DEBUG_GSM, "Pgsm(%s) gsm port with (caller id %s) received unhandled nessage: 0x%x\n", pgsm->p_name, pgsm->p_callerinfo.id, msg_type);
+ if (p_g_connect_pending) {
+ PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) connecting RTP... \n", rtp->ip, rtp->port);
+ send_mncc_rtp_connect();
}
- return(0);
}
-/* MESSAGE_SETUP */
-void Pgsm::message_setup(unsigned int epoint_id, int message_id, union parameter *param)
+/* RTP connect indication */
+void Pgsm::rtp_connect_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
{
struct lcr_msg *message;
- int ret;
- struct epoint_list *epointlist;
- struct gsm_mncc *mncc;
- int channel;
-
- /* copy setup infos to port */
- memcpy(&p_callerinfo, ¶m->setup.callerinfo, sizeof(p_callerinfo));
- memcpy(&p_dialinginfo, ¶m->setup.dialinginfo, sizeof(p_dialinginfo));
- memcpy(&p_capainfo, ¶m->setup.capainfo, sizeof(p_capainfo));
- memcpy(&p_redirinfo, ¶m->setup.redirinfo, sizeof(p_redirinfo));
-
- /* no number */
- if (!p_dialinginfo.id[0]) {
- gsm_trace_header(p_m_mISDNport, this, MNCC_SETUP_REQ, DIRECTION_OUT);
- add_trace("failure", NULL, "No dialed subscriber given.");
- end_trace();
- message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
- message->param.disconnectinfo.cause = 28;
- message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
- message_put(message);
- new_state(PORT_STATE_RELEASE);
- p_m_delete = 1;
- return;
- }
-
- /* release if port is blocked */
- if (p_m_mISDNport->ifport->block) {
- gsm_trace_header(p_m_mISDNport, this, MNCC_SETUP_REQ, DIRECTION_OUT);
- add_trace("failure", NULL, "Port blocked.");
- end_trace();
- message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
- message->param.disconnectinfo.cause = 27; // temp. unavail.
- message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
- message_put(message);
- new_state(PORT_STATE_RELEASE);
- p_m_delete = 1;
- return;
- }
+ struct gsm_mncc_rtp *rtp = (struct gsm_mncc_rtp *) mncc;
- /* hunt channel */
- ret = channel = hunt_bchannel();
- if (ret < 0)
- goto no_channel;
- /* open channel */
- ret = seize_bchannel(channel, 1);
- if (ret < 0) {
- no_channel:
- gsm_trace_header(p_m_mISDNport, this, MNCC_SETUP_REQ, DIRECTION_OUT);
- add_trace("failure", NULL, "No internal audio channel available.");
- end_trace();
- message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
- message->param.disconnectinfo.cause = 34;
- message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
+ if (p_g_connect_pending) {
+ message = p_g_connect_pending;
+ PDEBUG(DEBUG_GSM, "Got RTP peer info (%08x,%d) forwarding connect\n", rtp->ip, rtp->port);
+ message->param.connectinfo.rtpinfo.ip = rtp->ip;
+ message->param.connectinfo.rtpinfo.port = rtp->port;
message_put(message);
- new_state(PORT_STATE_RELEASE);
- p_m_delete = 1;
- return;
+ p_g_connect_pending = NULL;
}
- bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_USE);
- if (bchannel_open(p_m_b_index))
- goto no_channel;
-
-// SCPY(&p_m_tones_dir, param->setup.ext.tones_dir);
- /* screen outgoing caller id */
- do_screen(1, p_callerinfo.id, sizeof(p_callerinfo.id), &p_callerinfo.ntype, &p_callerinfo.present, p_m_mISDNport->ifport->interface);
- do_screen(1, p_callerinfo.id2, sizeof(p_callerinfo.id2), &p_callerinfo.ntype2, &p_callerinfo.present2, p_m_mISDNport->ifport->interface);
+}
- /* attach only if not already */
- epointlist = p_epointlist;
- while(epointlist) {
- if (epointlist->epoint_id == epoint_id)
- break;
- epointlist = epointlist->next;
+/* MESSAGE_PROGRESS */
+void Pgsm::message_progress(unsigned int epoint_id, int message_id, union parameter *param)
+{
+ if (param->progressinfo.progress == 8) {
+ PDEBUG(DEBUG_GSM, "Remote provides tones for us\n");
+ p_g_tones = 1;
}
- if (!epointlist)
- epointlist_new(epoint_id);
- /* creating l3id */
- l1l2l3_trace_header(p_m_mISDNport, this, L3_NEW_L3ID_REQ, DIRECTION_OUT);
- p_m_g_callref = new_callref++;
- add_trace("callref", "new", "0x%x", p_m_g_callref);
- end_trace();
+ if (param->progressinfo.rtpinfo.port) {
+ PDEBUG(DEBUG_GSM, "PROGRESS with RTP peer info, sent to BSC (%08x,%d) with media %d, pt %d\n", param->progressinfo.rtpinfo.ip, param->progressinfo.rtpinfo.port, param->progressinfo.rtpinfo.media_types[0], param->progressinfo.rtpinfo.payload_types[0]);
- gsm_trace_header(p_m_mISDNport, this, MNCC_SETUP_REQ, DIRECTION_OUT);
- mncc = create_mncc(MNCC_SETUP_REQ, p_m_g_callref);
- /* caller information */
- mncc->calling = 1;
- mncc->calling_plan = 1;
- switch (p_callerinfo.ntype) {
- case INFO_NTYPE_UNKNOWN:
- mncc->calling_type = 0x0;
- break;
- case INFO_NTYPE_INTERNATIONAL:
- mncc->calling_type = 0x1;
- break;
- case INFO_NTYPE_NATIONAL:
- mncc->calling_type = 0x2;
- break;
- case INFO_NTYPE_SUBSCRIBER:
- mncc->calling_type = 0x4;
- break;
- default: /* INFO_NTYPE_NOTPRESENT */
- mncc->calling = 0;
- break;
- }
- switch (p_callerinfo.screen) {
- case INFO_SCREEN_USER:
- mncc->calling_screen = 0;
- break;
- default: /* INFO_SCREEN_NETWORK */
- mncc->calling_screen = 3;
- break;
- }
- switch (p_callerinfo.present) {
- case INFO_PRESENT_ALLOWED:
- mncc->calling_present = 0;
- break;
- case INFO_PRESENT_RESTRICTED:
- mncc->calling_present = 1;
- break;
- default: /* INFO_PRESENT_NOTAVAIL */
- mncc->calling_present = 2;
- break;
- }
- if (mncc->calling) {
- SCPY(mncc->calling_number, p_callerinfo.id);
- add_trace("calling", "type", "%d", mncc->calling_type);
- add_trace("calling", "plan", "%d", mncc->calling_plan);
- add_trace("calling", "present", "%d", mncc->calling_present);
- add_trace("calling", "screen", "%d", mncc->calling_screen);
- add_trace("calling", "number", "%s", mncc->calling_number);
- }
- /* dialing information */
- mncc->called = 1;
- SCPY(mncc->called_number, p_dialinginfo.id);
- add_trace("dialing", "number", "%s", mncc->calling_number);
-
- /* sending user-user */
+ /* modify channel to givne type, also sets media type */
+ modify_lchan(param->progressinfo.rtpinfo.media_types[0]);
- /* redirecting number */
- mncc->redirecting = 1;
- mncc->redirecting_plan = 1;
- switch (p_redirinfo.ntype) {
- case INFO_NTYPE_UNKNOWN:
- mncc->redirecting_type = 0x0;
- break;
- case INFO_NTYPE_INTERNATIONAL:
- mncc->redirecting_type = 0x1;
- break;
- case INFO_NTYPE_NATIONAL:
- mncc->redirecting_type = 0x2;
- break;
- case INFO_NTYPE_SUBSCRIBER:
- mncc->redirecting_type = 0x4;
- break;
- default: /* INFO_NTYPE_NOTPRESENT */
- mncc->redirecting = 0;
- break;
- }
- switch (p_redirinfo.screen) {
- case INFO_SCREEN_USER:
- mncc->redirecting_screen = 0;
- break;
- default: /* INFO_SCREE_NETWORK */
- mncc->redirecting_screen = 3;
- break;
- }
- switch (p_redirinfo.present) {
- case INFO_PRESENT_ALLOWED:
- mncc->redirecting_present = 0;
- break;
- case INFO_PRESENT_RESTRICTED:
- mncc->redirecting_present = 1;
- break;
- default: /* INFO_PRESENT_NOTAVAIL */
- mncc->redirecting_present = 2;
- break;
- }
- /* sending redirecting number only in ntmode */
- if (mncc->redirecting) {
- SCPY(mncc->redirecting_number, p_redirinfo.id);
- add_trace("redir", "type", "%d", mncc->redirecting_type);
- add_trace("redir", "plan", "%d", mncc->redirecting_plan);
- add_trace("redir", "present", "%d", mncc->redirecting_present);
- add_trace("redir", "screen", "%d", mncc->redirecting_screen);
- add_trace("redir", "number", "%s", mncc->redirecting_number);
- }
- /* bearer capability */
- //todo
-
- send_and_free_mncc(gsm->network, mncc->msg_type, mncc);
- end_trace();
-
- new_state(PORT_STATE_OUT_SETUP);
-
- message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROCEEDING);
- message_put(message);
-
- new_state(PORT_STATE_OUT_PROCEEDING);
-}
-
-/* MESSAGE_NOTIFY */
-void Pgsm::message_notify(unsigned int epoint_id, int message_id, union parameter *param)
-{
- struct gsm_mncc *mncc;
- int notify;
-
- printf("if = %d\n", param->notifyinfo.notify);
- if (param->notifyinfo.notify>INFO_NOTIFY_NONE) {
- notify = param->notifyinfo.notify & 0x7f;
- if (p_state!=PORT_STATE_CONNECT /*&& p_state!=PORT_STATE_IN_PROCEEDING*/ && p_state!=PORT_STATE_IN_ALERTING) {
- /* queue notification */
- if (p_m_g_notify_pending)
- message_free(p_m_g_notify_pending);
- p_m_g_notify_pending = message_create(ACTIVE_EPOINT(p_epointlist), p_serial, EPOINT_TO_PORT, message_id);
- memcpy(&p_m_g_notify_pending->param, param, sizeof(union parameter));
- } else {
- /* sending notification */
- gsm_trace_header(p_m_mISDNport, this, MNCC_NOTIFY_REQ, DIRECTION_OUT);
- add_trace("notify", NULL, "%d", notify);
- end_trace();
- mncc = create_mncc(MNCC_NOTIFY_REQ, p_m_g_callref);
- mncc->notify = notify;
- send_and_free_mncc(gsm->network, mncc->msg_type, mncc);
- }
+ /* connect RTP */
+ p_g_rtp_ip_remote = param->progressinfo.rtpinfo.ip;
+ p_g_rtp_port_remote = param->progressinfo.rtpinfo.port;
+ /* p_g_media_type is already set by modify_lchan() */
+ p_g_payload_type = param->progressinfo.rtpinfo.payload_types[0];
+ send_mncc_rtp_connect();
}
}
struct gsm_mncc *mncc;
/* send alert */
- gsm_trace_header(p_m_mISDNport, this, MNCC_ALERT_REQ, DIRECTION_OUT);
- mncc = create_mncc(MNCC_ALERT_REQ, p_m_g_callref);
- if (p_m_mISDNport->tones) {
- mncc->progress = 1;
- mncc->progress_coding = 3; /* GSM */
- mncc->progress_location = 1;
- mncc->progress_descr = 8;
- add_trace("progress", "coding", "%d", mncc->progress_coding);
- add_trace("progress", "location", "%d", mncc->progress_location);
- add_trace("progress", "descr", "%d", mncc->progress_descr);
+ gsm_trace_header(p_interface_name, this, MNCC_ALERT_REQ, DIRECTION_OUT);
+ mncc = create_mncc(MNCC_ALERT_REQ, p_g_callref);
+ if (p_g_tones) {
+ mncc->fields |= MNCC_F_PROGRESS;
+ mncc->progress.coding = 3; /* GSM */
+ mncc->progress.location = 1;
+ mncc->progress.descr = 8;
+ add_trace("progress", "coding", "%d", mncc->progress.coding);
+ add_trace("progress", "location", "%d", mncc->progress.location);
+ add_trace("progress", "descr", "%d", mncc->progress.descr);
}
- send_and_free_mncc(gsm->network, mncc->msg_type, mncc);
end_trace();
+ send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
new_state(PORT_STATE_IN_ALERTING);
- if (p_m_mISDNport->tones && !p_m_g_tch_connected) { /* only if ... */
- gsm_trace_header(p_m_mISDNport, this, MNCC_FRAME_RECV, DIRECTION_OUT);
+ if (p_g_tones && !p_g_tch_connected) { /* only if ... */
+ gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
end_trace();
- mncc = create_mncc(MNCC_FRAME_RECV, p_m_g_callref);
- send_and_free_mncc(gsm->network, mncc->msg_type, mncc);
- p_m_g_tch_connected = 1;
+ mncc = create_mncc(MNCC_FRAME_RECV, p_g_callref);
+ 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);
}
}
/* copy connected information */
memcpy(&p_connectinfo, ¶m->connectinfo, sizeof(p_connectinfo));
/* screen outgoing caller id */
- do_screen(1, p_connectinfo.id, sizeof(p_connectinfo.id), &p_connectinfo.ntype, &p_connectinfo.present, p_m_mISDNport->ifport->interface);
+ do_screen(1, p_connectinfo.id, sizeof(p_connectinfo.id), &p_connectinfo.ntype, &p_connectinfo.present, p_interface_name);
/* send connect */
- mncc = create_mncc(MNCC_SETUP_RSP, p_m_g_callref);
- gsm_trace_header(p_m_mISDNport, this, MNCC_SETUP_RSP, DIRECTION_OUT);
+ mncc = create_mncc(MNCC_SETUP_RSP, p_g_callref);
+ gsm_trace_header(p_interface_name, this, MNCC_SETUP_RSP, DIRECTION_OUT);
/* caller information */
- mncc->connected = 1;
- mncc->connected_plan = 1;
+ mncc->fields |= MNCC_F_CONNECTED;
+ mncc->connected.plan = 1;
switch (p_callerinfo.ntype) {
case INFO_NTYPE_UNKNOWN:
- mncc->connected_type = 0x0;
+ mncc->connected.type = 0x0;
break;
case INFO_NTYPE_INTERNATIONAL:
- mncc->connected_type = 0x1;
+ mncc->connected.type = 0x1;
break;
case INFO_NTYPE_NATIONAL:
- mncc->connected_type = 0x2;
+ mncc->connected.type = 0x2;
break;
case INFO_NTYPE_SUBSCRIBER:
- mncc->connected_type = 0x4;
+ mncc->connected.type = 0x4;
break;
default: /* INFO_NTYPE_NOTPRESENT */
- mncc->connected = 0;
+ mncc->fields &= ~MNCC_F_CONNECTED;
break;
}
switch (p_callerinfo.screen) {
case INFO_SCREEN_USER:
- mncc->connected_screen = 0;
+ mncc->connected.screen = 0;
break;
default: /* INFO_SCREEN_NETWORK */
- mncc->connected_screen = 3;
+ mncc->connected.screen = 3;
break;
}
switch (p_callerinfo.present) {
case INFO_PRESENT_ALLOWED:
- mncc->connected_present = 0;
+ mncc->connected.present = 0;
break;
case INFO_PRESENT_RESTRICTED:
- mncc->connected_present = 1;
+ mncc->connected.present = 1;
break;
default: /* INFO_PRESENT_NOTAVAIL */
- mncc->connected_present = 2;
+ mncc->connected.present = 2;
break;
}
- if (mncc->connected) {
- SCPY(mncc->connected_number, p_connectinfo.id);
- add_trace("connected", "type", "%d", mncc->connected_type);
- add_trace("connected", "plan", "%d", mncc->connected_plan);
- add_trace("connected", "present", "%d", mncc->connected_present);
- add_trace("connected", "screen", "%d", mncc->connected_screen);
- add_trace("connected", "number", "%s", mncc->connected_number);
+ if (mncc->fields & MNCC_F_CONNECTED) {
+ SCPY(mncc->connected.number, p_connectinfo.id);
+ add_trace("connected", "type", "%d", mncc->connected.type);
+ add_trace("connected", "plan", "%d", mncc->connected.plan);
+ add_trace("connected", "present", "%d", mncc->connected.present);
+ add_trace("connected", "screen", "%d", mncc->connected.screen);
+ add_trace("connected", "number", "%s", mncc->connected.number);
}
end_trace();
- send_and_free_mncc(gsm->network, mncc->msg_type, mncc);
+ send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
new_state(PORT_STATE_CONNECT_WAITING);
+
+ if (param->connectinfo.rtpinfo.port) {
+ PDEBUG(DEBUG_GSM, "CONNECT with RTP peer info, sent to BSC (%08x,%d)\n", param->connectinfo.rtpinfo.ip, param->connectinfo.rtpinfo.port);
+
+ /* modify channel to givne type, also sets media type */
+ modify_lchan(param->connectinfo.rtpinfo.media_types[0]);
+
+ /* connect RTP */
+ p_g_rtp_ip_remote = param->connectinfo.rtpinfo.ip;
+ p_g_rtp_port_remote = param->connectinfo.rtpinfo.port;
+ /* p_g_media_type is already set by modify_lchan() */
+ p_g_payload_type = param->connectinfo.rtpinfo.payload_types[0];
+ send_mncc_rtp_connect();
+ }
}
/* MESSAGE_DISCONNECT */
struct gsm_mncc *mncc;
/* send disconnect */
- mncc = create_mncc(MNCC_DISC_REQ, p_m_g_callref);
- gsm_trace_header(p_m_mISDNport, this, MNCC_DISC_REQ, DIRECTION_OUT);
- if (p_m_mISDNport->tones) {
- mncc->progress = 1;
- mncc->progress_coding = 3; /* GSM */
- mncc->progress_location = 1;
- mncc->progress_descr = 8;
- add_trace("progress", "coding", "%d", mncc->progress_coding);
- add_trace("progress", "location", "%d", mncc->progress_location);
- add_trace("progress", "descr", "%d", mncc->progress_descr);
- }
- mncc->cause = 1;
- mncc->cause_location = param->disconnectinfo.location;
- mncc->cause_value = param->disconnectinfo.cause;
- add_trace("cause", "location", "%d", mncc->cause_location);
- add_trace("cause", "value", "%d", mncc->cause_value);
+ mncc = create_mncc(MNCC_DISC_REQ, p_g_callref);
+ gsm_trace_header(p_interface_name, this, MNCC_DISC_REQ, DIRECTION_OUT);
+ if (p_g_tones) {
+ mncc->fields |= MNCC_F_PROGRESS;
+ mncc->progress.coding = 3; /* GSM */
+ mncc->progress.location = 1;
+ mncc->progress.descr = 8;
+ add_trace("progress", "coding", "%d", mncc->progress.coding);
+ add_trace("progress", "location", "%d", mncc->progress.location);
+ add_trace("progress", "descr", "%d", mncc->progress.descr);
+ }
+ mncc->fields |= MNCC_F_CAUSE;
+ mncc->cause.coding = 3;
+ mncc->cause.location = param->disconnectinfo.location;
+ mncc->cause.value = param->disconnectinfo.cause;
+ add_trace("cause", "coding", "%d", mncc->cause.coding);
+ add_trace("cause", "location", "%d", mncc->cause.location);
+ add_trace("cause", "value", "%d", mncc->cause.value);
end_trace();
- send_and_free_mncc(gsm->network, mncc->msg_type, mncc);
+ send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
new_state(PORT_STATE_OUT_DISCONNECT);
- if (p_m_mISDNport->tones && !p_m_g_tch_connected) { /* only if ... */
- gsm_trace_header(p_m_mISDNport, this, MNCC_FRAME_RECV, DIRECTION_OUT);
+ if (p_g_tones && !p_g_tch_connected) { /* only if ... */
+ gsm_trace_header(p_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
end_trace();
- mncc = create_mncc(MNCC_FRAME_RECV, p_m_g_callref);
- send_and_free_mncc(gsm->network, mncc->msg_type, mncc);
- p_m_g_tch_connected = 1;
+ mncc = create_mncc(MNCC_FRAME_RECV, p_g_callref);
+ send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
+ p_g_tch_connected = 1;
}
}
struct gsm_mncc *mncc;
/* send release */
- mncc = create_mncc(MNCC_REL_REQ, p_m_g_callref);
- gsm_trace_header(p_m_mISDNport, this, MNCC_REL_REQ, DIRECTION_OUT);
- mncc->cause = 1;
- mncc->cause_location = param->disconnectinfo.location;
- mncc->cause_value = param->disconnectinfo.cause;
- add_trace("cause", "location", "%d", mncc->cause_location);
- add_trace("cause", "value", "%d", mncc->cause_value);
+ mncc = create_mncc(MNCC_REL_REQ, p_g_callref);
+ gsm_trace_header(p_interface_name, this, MNCC_REL_REQ, DIRECTION_OUT);
+ mncc->fields |= MNCC_F_CAUSE;
+ mncc->cause.coding = 3;
+ mncc->cause.location = param->disconnectinfo.location;
+ mncc->cause.value = param->disconnectinfo.cause;
+ add_trace("cause", "coding", "%d", mncc->cause.coding);
+ add_trace("cause", "location", "%d", mncc->cause.location);
+ add_trace("cause", "value", "%d", mncc->cause.value);
end_trace();
- send_and_free_mncc(gsm->network, mncc->msg_type, mncc);
+ send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
new_state(PORT_STATE_RELEASE);
- p_m_delete = 1;
+ trigger_work(&p_g_delete);
return;
}
-
/*
* endpoint sends messages to the port
*/
int Pgsm::message_epoint(unsigned int epoint_id, int message_id, union parameter *param)
{
- if (PmISDN::message_epoint(epoint_id, message_id, param))
- return(1);
+ int ret = 0;
- switch(message_id) {
- case MESSAGE_SETUP: /* dial-out command received from epoint */
- if (p_state!=PORT_STATE_IDLE)
- break;
- message_setup(epoint_id, message_id, param);
- break;
+ if (Port::message_epoint(epoint_id, message_id, param))
+ return 1;
+ switch(message_id) {
case MESSAGE_NOTIFY: /* display and notifications */
+ ret = 1;
message_notify(epoint_id, message_id, param);
break;
// break;
case MESSAGE_PROCEEDING: /* message not handles */
+ ret = 1;
+ break;
+
+ case MESSAGE_PROGRESS:
+ ret = 1;
+ message_progress(epoint_id, message_id, param);
break;
case MESSAGE_ALERTING: /* call of endpoint is ringing */
+ ret = 1;
if (p_state!=PORT_STATE_IN_PROCEEDING)
break;
message_alerting(epoint_id, message_id, param);
- if (p_m_g_notify_pending) {
+ if (p_g_notify_pending) {
/* send pending notify message during connect */
- message_notify(ACTIVE_EPOINT(p_epointlist), p_m_g_notify_pending->type, &p_m_g_notify_pending->param);
- message_free(p_m_g_notify_pending);
- p_m_g_notify_pending = NULL;
+ message_notify(ACTIVE_EPOINT(p_epointlist), p_g_notify_pending->type, &p_g_notify_pending->param);
+ message_free(p_g_notify_pending);
+ p_g_notify_pending = NULL;
}
break;
case MESSAGE_CONNECT: /* call of endpoint is connected */
+ ret = 1;
if (p_state!=PORT_STATE_IN_PROCEEDING
&& p_state!=PORT_STATE_IN_ALERTING)
break;
message_connect(epoint_id, message_id, param);
- if (p_m_g_notify_pending) {
+ if (p_g_notify_pending) {
/* send pending notify message during connect */
- message_notify(ACTIVE_EPOINT(p_epointlist), p_m_g_notify_pending->type, &p_m_g_notify_pending->param);
- message_free(p_m_g_notify_pending);
- p_m_g_notify_pending = NULL;
+ message_notify(ACTIVE_EPOINT(p_epointlist), p_g_notify_pending->type, &p_g_notify_pending->param);
+ message_free(p_g_notify_pending);
+ p_g_notify_pending = NULL;
}
break;
case MESSAGE_DISCONNECT: /* call has been disconnected */
+ ret = 1;
if (p_state!=PORT_STATE_IN_PROCEEDING
&& p_state!=PORT_STATE_IN_ALERTING
&& p_state!=PORT_STATE_OUT_SETUP
break;
case MESSAGE_RELEASE: /* release isdn port */
+ ret = 1;
if (p_state==PORT_STATE_RELEASE)
break;
message_release(epoint_id, message_id, param);
break;
- default:
- PDEBUG(DEBUG_GSM, "Pgsm(%s) gsm port with (caller id %s) received unhandled nessage: %d\n", p_name, p_callerinfo.id, message_id);
}
- return(1);
+ return ret;
}
-
-/*
- * handler
- */
-int Pgsm::handler(void)
+/* deletes only if l3id is release, otherwhise it will be triggered then */
+static int delete_event(struct lcr_work *work, void *instance, int index)
{
- int ret;
- int work = 0;
- unsigned char buffer[2048+MISDN_HEADER_LEN];
- struct mISDNhead *hh = (struct mISDNhead *)buffer;
-
- if ((ret = PmISDN::handler()))
- return(ret);
+ class Pgsm *gsmport = (class Pgsm *)instance;
- /* handle destruction */
- if (p_m_delete) {
- delete this;
- return(-1);
- }
+ delete gsmport;
- /* handle message from bchannel */
- if (p_m_g_gsm_b_sock > -1) {
- ret = recv(p_m_g_gsm_b_sock, buffer, sizeof(buffer), 0);
- if (ret >= (int)MISDN_HEADER_LEN) {
- switch(hh->prim) {
- /* we don't care about confirms, we use rx data to sync tx */
- case PH_DATA_CNF:
- break;
- /* we receive audio data, we respond to it AND we send tones */
- case PH_DATA_IND:
- bchannel_receive(hh, buffer+MISDN_HEADER_LEN, ret-MISDN_HEADER_LEN);
- break;
- case PH_ACTIVATE_IND:
- p_m_g_gsm_b_active = 1;
- break;
- case PH_DEACTIVATE_IND:
- p_m_g_gsm_b_active = 0;
- break;
- }
- work = 1;
- } else {
- if (ret < 0 && errno != EWOULDBLOCK)
- PERROR("Read from GSM port, index %d failed with return code %d\n", ret);
- }
- }
+ return 0;
+}
- return(work);
+int gsm_exit(int rc)
+{
+ return(rc);
}
+int gsm_init(void)
+{
+ /* seed the PRNG */
+ srand(time(NULL));
+
+ return 0;
+}
/*
- * handles bsc select function within LCR's main loop
+ * MNCC interface
*/
-int handle_gsm(void)
+
+static int mncc_q_enqueue(struct lcr_gsm *lcr_gsm, struct gsm_mncc *mncc, unsigned int len)
{
- int ret1, ret2;
+ struct mncc_q_entry *qe;
+
+ qe = (struct mncc_q_entry *) MALLOC(sizeof(*qe)+sizeof(*mncc)+len);
+ if (!qe)
+ return -ENOMEM;
+
+ qe->next = NULL;
+ qe->len = len;
+ memcpy(qe->data, mncc, len);
+
+ /* in case of empty list ... */
+ if (!lcr_gsm->mncc_q_hd && !lcr_gsm->mncc_q_tail) {
+ /* the list head and tail both point to the new qe */
+ lcr_gsm->mncc_q_hd = lcr_gsm->mncc_q_tail = qe;
+ } else {
+ /* append to tail of list */
+ lcr_gsm->mncc_q_tail->next = qe;
+ lcr_gsm->mncc_q_tail = qe;
+ }
+
+ lcr_gsm->mncc_lfd.when |= LCR_FD_WRITE;
- ret1 = bsc_upqueue(gsm->network);
- ret2 = bsc_select_main(1); /* polling */
- if (ret1 || ret2)
- return 1;
return 0;
}
-static void gsm_sock_close(void)
+static struct mncc_q_entry *mncc_q_dequeue(struct lcr_gsm *lcr_gsm)
{
- if (gsm->gsm_sock > -1)
- close(gsm->gsm_sock);
- gsm->gsm_sock = -1;
+ struct mncc_q_entry *qe = lcr_gsm->mncc_q_hd;
+ if (!qe)
+ return NULL;
+
+ /* dequeue the successfully sent message */
+ lcr_gsm->mncc_q_hd = qe->next;
+ if (!qe)
+ return NULL;
+ if (qe == lcr_gsm->mncc_q_tail)
+ lcr_gsm->mncc_q_tail = NULL;
+
+ return qe;
}
-static int gsm_sock_open(char *portname)
+/* routine called by LCR code if it wants to send a message to OpenBSC */
+static int mncc_send(struct lcr_gsm *lcr_gsm, int msg_type, void *data)
{
- int ret;
- int cnt;
- unsigned long on = 1;
- struct sockaddr_mISDN addr;
- struct mISDN_devinfo devinfo;
- int pri, bri;
-
- /* check port counts */
- ret = ioctl(mISDNsocket, IMGETCOUNT, &cnt);
- if (ret < 0) {
- fprintf(stderr, "Cannot get number of mISDN devices. (ioctl IMGETCOUNT failed ret=%d)\n", ret);
- return(ret);
- }
+ int len = 0;
- if (cnt <= 0) {
- PERROR_RUNTIME("Found no card. Please be sure to load card drivers.\n");
- return -EIO;
- }
- gsm->gsm_port = mISDN_getportbyname(mISDNsocket, cnt, portname);
- if (gsm->gsm_port < 0) {
- PERROR_RUNTIME("Port name '%s' not found, did you load loopback interface for GSM?.\n", portname);
- return gsm->gsm_port;
- }
- /* get protocol */
- bri = pri = 0;
- devinfo.id = gsm->gsm_port;
- ret = ioctl(mISDNsocket, IMGETDEVINFO, &devinfo);
- if (ret < 0) {
- PERROR_RUNTIME("Cannot get device information for port %d. (ioctl IMGETDEVINFO failed ret=%d)\n", gsm->gsm_port, ret);
- return ret;
- }
- if (devinfo.Dprotocols & (1 << ISDN_P_TE_S0)) {
- bri = 1;
- }
- if (devinfo.Dprotocols & (1 << ISDN_P_TE_E1)) {
- pri = 1;
- }
- if (!pri && !pri) {
- PERROR_RUNTIME("GSM port %d does not support TE PRI or TE BRI.\n", gsm->gsm_port);
- }
- /* open socket */
- if ((gsm->gsm_sock = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_TE_S0)) < 0) {
- PERROR_RUNTIME("GSM port %d failed to open socket.\n", gsm->gsm_port);
- gsm_sock_close();
- return gsm->gsm_sock;
- }
- /* set nonblocking io */
- if ((ret = ioctl(gsm->gsm_sock, FIONBIO, &on)) < 0) {
- PERROR_RUNTIME("GSM port %d failed to set socket into nonblocking io.\n", gsm->gsm_port);
- gsm_sock_close();
- return ret;
+ /* FIXME: the caller should provide this */
+ switch (msg_type) {
+ case GSM_TCHF_FRAME:
+ len = sizeof(struct gsm_data_frame) + 33;
+ break;
+ default:
+ len = sizeof(struct gsm_mncc);
+ break;
}
- /* bind socket to dchannel */
- memset(&addr, 0, sizeof(addr));
- addr.family = AF_ISDN;
- addr.dev = gsm->gsm_port;
- addr.channel = 0;
- if ((ret = bind(gsm->gsm_sock, (struct sockaddr *)&addr, sizeof(addr))) < 0) {
- PERROR_RUNTIME("GSM port %d failed to bind socket. (name = %s errno=%d)\n", gsm->gsm_port, portname, errno);
- gsm_sock_close();
- return (ret);
+
+ return mncc_q_enqueue(lcr_gsm, (struct gsm_mncc *)data, len);
+}
+
+/* close MNCC socket */
+static int mncc_fd_close(struct lcr_gsm *lcr_gsm, struct lcr_fd *lfd)
+{
+ class Port *port;
+ class Pgsm *pgsm = NULL;
+ struct lcr_msg *message;
+
+ PERROR("Lost MNCC socket, retrying in %u seconds\n", SOCKET_RETRY_TIMER);
+ close(lfd->fd);
+ unregister_fd(lfd);
+ lfd->fd = -1;
+
+ /* 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) {
+ 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);
+ message->param.disconnectinfo.cause = 27; // temp. unavail.
+ message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
+ message_put(message);
+ pgsm->new_state(PORT_STATE_RELEASE);
+ trigger_work(&pgsm->p_g_delete);
+ }
+ }
+ port = port->next;
}
+ /* flush the queue */
+ while (mncc_q_dequeue(lcr_gsm))
+ ;
+
+ /* start the re-connect timer */
+ schedule_timer(&lcr_gsm->socket_retry, SOCKET_RETRY_TIMER, 0);
+
return 0;
}
+/* write to OpenBSC via MNCC socket */
+static int mncc_fd_write(struct lcr_fd *lfd, void *inst, int idx)
+{
+ struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
+ struct mncc_q_entry *qe, *qe2;
+ int rc;
+
+ while (1) {
+ qe = lcr_gsm->mncc_q_hd;
+ if (!qe) {
+ lfd->when &= ~LCR_FD_WRITE;
+ break;
+ }
+ rc = write(lfd->fd, qe->data, qe->len);
+ if (rc == 0)
+ return mncc_fd_close(lcr_gsm, lfd);
+ if (rc < 0)
+ return rc;
+ if (rc < (int)qe->len)
+ return -1;
+ /* dequeue the successfully sent message */
+ qe2 = mncc_q_dequeue(lcr_gsm);
+ assert(qe == qe2);
+ free(qe);
+ }
+ return 0;
+}
-int gsm_exit(int rc)
+/* read from OpenBSC via MNCC socket */
+static int mncc_fd_read(struct lcr_fd *lfd, void *inst, int idx)
{
- /* free gsm instance */
- if (gsm) {
- if (gsm->gsm_sock > -1)
- gsm_sock_close();
- /* shutdown network */
- if (gsm->network)
- shutdown_net(gsm->network);
- /* free network */
- if (gsm->network) {
- free(gsm->network); /* TBD */
+ struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
+ 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 mncc_fd_close(lcr_gsm, lfd);
+ 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;
}
- free(gsm);
- gsm = NULL;
+
+#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;
}
- return(rc);
+ /* Hand the MNCC message into LCR */
+ switch (lcr_gsm->type) {
+#ifdef WITH_GSM_BS
+ case LCR_GSM_TYPE_NETWORK:
+ return message_bsc(lcr_gsm, mncc_prim->msg_type, mncc_prim);
+#endif
+#ifdef WITH_GSM_MS
+ case LCR_GSM_TYPE_MS:
+ return message_ms(lcr_gsm, mncc_prim->msg_type, mncc_prim);
+#endif
+ default:
+ return 0;
+ }
}
-int gsm_init(void)
+/* file descriptor callback if we can read or write form MNCC socket */
+static int mncc_fd_cb(struct lcr_fd *lfd, unsigned int what, void *inst, int idx)
{
- char hlr[128];
+ int rc = 0;
- /* create gsm instance */
- gsm = (struct lcr_gsm *)MALLOC(sizeof(struct lcr_gsm));
- gsm->gsm_sock = -1;
+ if (what & LCR_FD_READ)
+ rc = mncc_fd_read(lfd, inst, idx);
+ if (rc < 0)
+ return rc;
- /* parse options */
- if (!gsm_conf(&gsm->conf)) {
- PERROR("%s", gsm_conf_error);
- return gsm_exit(-EINVAL);
- }
+ if (what & LCR_FD_WRITE)
+ rc = mncc_fd_write(lfd, inst, idx);
- /* init database */
- if (gsm->conf.hlr[0] == '/')
- SCPY(hlr, gsm->conf.hlr);
- else
- SPRINT(hlr, "%s/%s", CONFIG_DATA, gsm->conf.hlr);
+ return rc;
+}
- // TODO multiple base stations
- if (gsm->conf.numbts < 1 || gsm->conf.numbts > 1) {
- PERROR("Expecting exactly one BTS. You defined %d.\n", gsm->conf.numbts);
- return gsm_exit(-1);
- }
- /* bootstrap network */
- gsm->network = bootstrap_network(&message_bcs, gsm->conf.bts[0].type, gsm->conf.mcc, gsm->conf.mnc, gsm->conf.lac, gsm->conf.bts[0].frequency[0], gsm->conf.bts[0].card, !gsm->conf.keep_l2, gsm->conf.short_name, gsm->conf.long_name, hlr, gsm->conf.allow_all);
- if (!gsm->network) {
- PERROR("Failed to bootstrap GSM network.\n");
- return gsm_exit(-1);
- }
- /* open gsm loop interface */
- if (gsm_sock_open(gsm->conf.interface_bsc)) {
- return gsm_exit(-1);
+int mncc_socket_retry_cb(struct lcr_timer *timer, void *inst, int index)
+{
+ struct lcr_gsm *lcr_gsm = (struct lcr_gsm *) inst;
+ int fd, rc;
+
+ lcr_gsm->mncc_lfd.fd = -1;
+
+ fd = socket(PF_UNIX, SOCK_SEQPACKET, 0);
+ if (fd < 0) {
+ PERROR("Cannot create SEQPACKET socket, giving up!\n");
+ return fd;
+ }
+
+ rc = connect(fd, (struct sockaddr *) &lcr_gsm->sun,
+ sizeof(lcr_gsm->sun));
+ if (rc < 0) {
+ PERROR("Could not connect to MNCC socket %s, "
+ "retrying in %u seconds\n", lcr_gsm->sun.sun_path,
+ SOCKET_RETRY_TIMER);
+ close(fd);
+ schedule_timer(&lcr_gsm->socket_retry, SOCKET_RETRY_TIMER, 0);
+ } else {
+ PDEBUG(DEBUG_GSM, "Connected to MNCC socket %s!\n", lcr_gsm->sun.sun_path);
+ lcr_gsm->mncc_lfd.fd = fd;
+ register_fd(&lcr_gsm->mncc_lfd, LCR_FD_READ, &mncc_fd_cb, lcr_gsm, 0);
}
return 0;
projects / lcr.git / blobdiff