\*****************************************************************************/
#include "main.h"
-#include "config.h"
+#include "mncc.h"
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-extern "C" {
-#include <assert.h>
-#include <getopt.h>
-
-#include <sys/socket.h>
-#include <sys/un.h>
-
-#include <openbsc/mncc.h>
-#include <openbsc/trau_frame.h>
-}
+struct lcr_gsm *gsm_bs = NULL;
-#define SOCKET_RETRY_TIMER 5
+#define RTP_PT_GSM_FULL 3
+#define RTP_PT_GSM_HALF 96
+#define RTP_PT_GSM_EFR 97
+#define RTP_PT_GSM_AMR 98
/*
* DTMF stuff
/*
* constructor
*/
-Pgsm_bs::Pgsm_bs(int type, struct mISDNport *mISDNport, char *portname, struct port_settings *settings, int channel, int exclusive, int mode) : Pgsm(type, mISDNport, portname, settings, channel, exclusive, mode)
+Pgsm_bs::Pgsm_bs(int type, char *portname, struct port_settings *settings, struct interface *interface) : Pgsm(type, portname, settings, interface)
{
- p_m_g_instance = gsm->network;
- p_m_g_dtmf = NULL;
- p_m_g_dtmf_index = 0;
+ p_g_lcr_gsm = gsm_bs;
+ p_g_dtmf = NULL;
+ p_g_dtmf_index = 0;
PDEBUG(DEBUG_GSM, "Created new GSMBSPort(%s).\n", portname);
}
PDEBUG(DEBUG_GSM, "Destroyed GSM BS process(%s).\n", p_name);
}
+/* PROCEEDING INDICATION (from MS) */
+void Pgsm_bs::call_conf_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
+{
+ unsigned char payload_types[8];
+ int payloads = 0;
+
+ gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
+ if (mncc->fields & MNCC_F_CAUSE) {
+ add_trace("cause", "coding", "%d", mncc->cause.coding);
+ add_trace("cause", "location", "%", mncc->cause.location);
+ add_trace("cause", "value", "%", mncc->cause.value);
+ }
+ end_trace();
+
+ new_state(PORT_STATE_OUT_PROCEEDING);
+
+ /* get list of offered payload types
+ * if list ist empty, the FR V1 is selected */
+ select_payload_type(mncc, payload_types, &payloads, sizeof(payload_types));
+ /* if no given payload type is supported, we assume */
+ if (!payloads) {
+ payload_types[0] = RTP_PT_GSM_FULL;
+ payloads = 1;
+ }
+
+ /* select first payload type that matches the rtp list */
+ if (p_g_rtp_bridge) {
+ int i, j;
+
+ for (i = 0; i < p_g_rtp_payloads; i++) {
+ for (j = 0; j < payloads; j++) {
+ if (p_g_rtp_payload_types[i] == payload_types[j])
+ break;
+ }
+ if (j < payloads)
+ break;
+ }
+ if (i == p_g_rtp_payloads) {
+ struct lcr_msg *message;
+
+ /* payload offered by remote RTP is not supported */
+ message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_RELEASE);
+ message->param.disconnectinfo.cause = 65;
+ message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
+ message_put(message);
+ /* send release */
+ mncc = create_mncc(MNCC_REL_REQ, p_g_callref);
+ gsm_trace_header(p_g_interface_name, this, MNCC_REL_REQ, DIRECTION_OUT);
+ mncc->fields |= MNCC_F_CAUSE;
+ mncc->cause.coding = 3;
+ mncc->cause.location = LOCATION_PRIVATE_LOCAL;
+ mncc->cause.value = 65;
+ add_trace("cause", "coding", "%d", mncc->cause.coding);
+ add_trace("cause", "location", "%d", mncc->cause.location);
+ add_trace("cause", "value", "%d", mncc->cause.value);
+ add_trace("reason", NULL, "None of the payload types are supported by MS");
+ end_trace();
+ send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
+ new_state(PORT_STATE_RELEASE);
+ trigger_work(&p_g_delete);
+ }
+ modify_lchan(p_g_rtp_payload_types[i]);
+ } else {
+ /* modify to first given payload */
+ modify_lchan(payload_types[0]);
+ }
+}
+
/* DTMF INDICATION */
void Pgsm_bs::start_dtmf_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);
+ gsm_trace_header(p_g_interface_name, 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;
/* send resp */
- gsm_trace_header(p_m_mISDNport, this, MNCC_START_DTMF_RSP, DIRECTION_OUT);
+ gsm_trace_header(p_g_interface_name, this, MNCC_START_DTMF_RSP, DIRECTION_OUT);
add_trace("keypad", NULL, "%c", mncc->keypad);
end_trace();
- resp = create_mncc(MNCC_START_DTMF_RSP, p_m_g_callref);
+ resp = create_mncc(MNCC_START_DTMF_RSP, p_g_callref);
+ resp->fields |= MNCC_F_KEYPAD;
resp->keypad = mncc->keypad;
- send_and_free_mncc(p_m_g_instance, resp->msg_type, resp);
+ send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
-#if 0
- /* 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_put(message);
-#endif
+ if (p_g_rtp_bridge) {
+ class Port *remote = bridge_remote();
- /* generate DTMF tones */
- switch (mncc->keypad) {
- case '1': p_m_g_dtmf = dtmf_samples[0]; break;
- case '2': p_m_g_dtmf = dtmf_samples[1]; break;
- case '3': p_m_g_dtmf = dtmf_samples[2]; break;
- case 'a':
- case 'A': p_m_g_dtmf = dtmf_samples[3]; break;
- case '4': p_m_g_dtmf = dtmf_samples[4]; break;
- case '5': p_m_g_dtmf = dtmf_samples[5]; break;
- case '6': p_m_g_dtmf = dtmf_samples[6]; break;
- case 'b':
- case 'B': p_m_g_dtmf = dtmf_samples[7]; break;
- case '7': p_m_g_dtmf = dtmf_samples[8]; break;
- case '8': p_m_g_dtmf = dtmf_samples[9]; break;
- case '9': p_m_g_dtmf = dtmf_samples[10]; break;
- case 'c':
- case 'C': p_m_g_dtmf = dtmf_samples[11]; break;
- case '*': p_m_g_dtmf = dtmf_samples[12]; break;
- case '0': p_m_g_dtmf = dtmf_samples[13]; break;
- case '#': p_m_g_dtmf = dtmf_samples[14]; break;
- case 'd':
- case 'D': p_m_g_dtmf = dtmf_samples[15]; break;
- }
- p_m_g_dtmf_index = 0;
+ if (remote) {
+ struct lcr_msg *message;
+
+ /* send dtmf information, because we bridge RTP directly */
+ message = message_create(0, remote->p_serial, EPOINT_TO_PORT, MESSAGE_DTMF);
+ message->param.dtmf = mncc->keypad;
+ message_put(message);
+ }
+ } else {
+ /* generate DTMF tones, since we do audio forwarding inside LCR */
+ switch (mncc->keypad) {
+ case '1': p_g_dtmf = dtmf_samples[0]; break;
+ case '2': p_g_dtmf = dtmf_samples[1]; break;
+ case '3': p_g_dtmf = dtmf_samples[2]; break;
+ case 'a':
+ case 'A': p_g_dtmf = dtmf_samples[3]; break;
+ case '4': p_g_dtmf = dtmf_samples[4]; break;
+ case '5': p_g_dtmf = dtmf_samples[5]; break;
+ case '6': p_g_dtmf = dtmf_samples[6]; break;
+ case 'b':
+ case 'B': p_g_dtmf = dtmf_samples[7]; break;
+ case '7': p_g_dtmf = dtmf_samples[8]; break;
+ case '8': p_g_dtmf = dtmf_samples[9]; break;
+ case '9': p_g_dtmf = dtmf_samples[10]; break;
+ case 'c':
+ case 'C': p_g_dtmf = dtmf_samples[11]; break;
+ case '*': p_g_dtmf = dtmf_samples[12]; break;
+ case '0': p_g_dtmf = dtmf_samples[13]; break;
+ case '#': p_g_dtmf = dtmf_samples[14]; break;
+ case 'd':
+ case 'D': p_g_dtmf = dtmf_samples[15]; break;
+ }
+ p_g_dtmf_index = 0;
+ }
}
void Pgsm_bs::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);
+ gsm_trace_header(p_g_interface_name, 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);
+ gsm_trace_header(p_g_interface_name, 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 = create_mncc(MNCC_STOP_DTMF_RSP, p_g_callref);
resp->keypad = mncc->keypad;
- send_and_free_mncc(p_m_g_instance, resp->msg_type, resp);
+ send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
/* stop DTMF */
- p_m_g_dtmf = NULL;
+ p_g_dtmf = NULL;
}
/* HOLD INDICATION */
struct lcr_msg *message;
struct gsm_mncc *resp, *frame;
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
+ gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
end_trace();
/* notify the hold of call */
message_put(message);
/* acknowledge hold */
- gsm_trace_header(p_m_mISDNport, this, MNCC_HOLD_CNF, DIRECTION_OUT);
+ gsm_trace_header(p_g_interface_name, this, MNCC_HOLD_CNF, DIRECTION_OUT);
end_trace();
- resp = create_mncc(MNCC_HOLD_CNF, p_m_g_callref);
- send_and_free_mncc(p_m_g_instance, resp->msg_type, resp);
+ resp = create_mncc(MNCC_HOLD_CNF, p_g_callref);
+ send_and_free_mncc(p_g_lcr_gsm, 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);
+ if (p_g_tch_connected) { /* it should be true */
+ gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_DROP, DIRECTION_OUT);
end_trace();
- frame = create_mncc(MNCC_FRAME_DROP, p_m_g_callref);
- send_and_free_mncc(p_m_g_instance, frame->msg_type, frame);
- p_m_g_tch_connected = 0;
+ frame = create_mncc(MNCC_FRAME_DROP, p_g_callref);
+ send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
+ p_g_tch_connected = 0;
}
}
struct lcr_msg *message;
struct gsm_mncc *resp, *frame;
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
+ gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
end_trace();
/* notify the retrieve of call */
message_put(message);
/* acknowledge retr */
- gsm_trace_header(p_m_mISDNport, this, MNCC_RETRIEVE_CNF, DIRECTION_OUT);
+ gsm_trace_header(p_g_interface_name, this, MNCC_RETRIEVE_CNF, DIRECTION_OUT);
end_trace();
- resp = create_mncc(MNCC_RETRIEVE_CNF, p_m_g_callref);
- send_and_free_mncc(p_m_g_instance, resp->msg_type, resp);
+ resp = create_mncc(MNCC_RETRIEVE_CNF, p_g_callref);
+ send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
/* enable audio */
- if (!p_m_g_tch_connected) { /* it should be true */
- gsm_trace_header(p_m_mISDNport, this, MNCC_FRAME_RECV, DIRECTION_OUT);
+ if (!p_g_tch_connected) { /* it should be true */
+ gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
end_trace();
- frame = create_mncc(MNCC_FRAME_RECV, p_m_g_callref);
- send_and_free_mncc(p_m_g_instance, 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;
+ }
+}
+
+/*
+ * select payload type by given list or GSM V1 FR
+ * return the payload type or 0 if not given
+ */
+
+void Pgsm_bs::select_payload_type(struct gsm_mncc *mncc, unsigned char *payload_types, int *payloads, int max_payloads)
+{
+ unsigned char payload_type;
+
+ *payloads = 0;
+
+ gsm_trace_header(p_g_interface_name, this, 1 /* codec negotioation */, DIRECTION_NONE);
+ if ((mncc->fields & MNCC_F_BEARER_CAP)) {
+ /* select preferred payload type from list */
+ int i;
+
+ add_trace("bearer", "capa", "given by MS");
+ for (i = 0; mncc->bearer_cap.speech_ver[i] >= 0; i++) {
+ /* select payload type we support */
+ switch (mncc->bearer_cap.speech_ver[i]) {
+ case 0:
+ add_trace("speech", "version", "Full Rate given");
+ payload_type = RTP_PT_GSM_FULL;
+ break;
+ case 2:
+ add_trace("speech", "version", "EFR given");
+ payload_type = RTP_PT_GSM_EFR;
+ break;
+ case 4:
+ add_trace("speech", "version", "AMR given");
+ payload_type = RTP_PT_GSM_AMR;
+ break;
+ case 1:
+ add_trace("speech", "version", "Half Rate given");
+ payload_type = RTP_PT_GSM_HALF;
+ break;
+ default:
+ add_trace("speech", "version", "%d given", mncc->bearer_cap.speech_ver[i]);
+ payload_type = 0;
+ }
+ /* wen don't support it, so we check the next */
+ if (!payload_type) {
+ add_trace("speech", "ignored", "Not supported by LCR");
+ continue;
+ }
+ if (!p_g_rtp_bridge) {
+ if (payload_type != RTP_PT_GSM_FULL) {
+ add_trace("speech", "ignored", "Not suitable for LCR");
+ continue;
+ }
+ }
+ if (*payloads <= max_payloads) {
+ payload_types[*payloads] = payload_type;
+ (*payloads)++;
+ }
+ }
+ } else {
+ add_trace("bearer", "capa", "not given by MS");
+ add_trace("speech", "version", "Full Rate given");
+ payload_types[0] = RTP_PT_GSM_FULL;
+ *payloads = 1;
}
+ if (!(*payloads))
+ add_trace("error", "", "All given payload types unsupported");
+ end_trace();
}
/*
/* SETUP INDICATION */
void Pgsm_bs::setup_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
{
- int ret;
class Endpoint *epoint;
struct lcr_msg *message;
- int channel;
- struct gsm_mncc *mode, *proceeding, *frame;
+ struct gsm_mncc *proceeding, *frame;
+ struct interface *interface;
+ unsigned char payload_types[8];
+ int payloads = 0;
+
+ interface = getinterfacebyname(p_g_interface_name);
+ if (!interface) {
+ PERROR("Cannot find interface %s.\n", p_g_interface_name);
+ return;
+ }
/* process given callref */
- l1l2l3_trace_header(p_m_mISDNport, this, L3_NEW_L3ID_IND, DIRECTION_IN);
+ gsm_trace_header(p_g_interface_name, this, 0, DIRECTION_IN);
add_trace("callref", "new", "0x%x", callref);
- if (p_m_g_callref) {
+ if (p_g_callref) {
/* release in case the ID is already in use */
add_trace("error", NULL, "callref already in use");
end_trace();
mncc = create_mncc(MNCC_REJ_REQ, callref);
- gsm_trace_header(p_m_mISDNport, this, MNCC_REJ_REQ, DIRECTION_OUT);
+ gsm_trace_header(p_g_interface_name, this, MNCC_REJ_REQ, DIRECTION_OUT);
mncc->fields |= MNCC_F_CAUSE;
mncc->cause.coding = 3;
mncc->cause.location = 1;
add_trace("cause", "value", "%d", mncc->cause.value);
add_trace("reason", NULL, "callref already in use");
end_trace();
- send_and_free_mncc(p_m_g_instance, mncc->msg_type, mncc);
+ send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
new_state(PORT_STATE_RELEASE);
- trigger_work(&p_m_g_delete);
+ trigger_work(&p_g_delete);
return;
}
- p_m_g_callref = callref;
+ p_g_callref = callref;
end_trace();
- /* if blocked, release call with MT_RELEASE_COMPLETE */
- if (p_m_mISDNport->ifport->block) {
- mncc = create_mncc(MNCC_REJ_REQ, p_m_g_callref);
- gsm_trace_header(p_m_mISDNport, this, MNCC_REJ_REQ, DIRECTION_OUT);
- mncc->fields |= MNCC_F_CAUSE;
- mncc->cause.coding = 3;
- mncc->cause.location = 1;
- mncc->cause.value = 27;
- add_trace("cause", "coding", "%d", mncc->cause.coding);
- add_trace("cause", "location", "%d", mncc->cause.location);
- add_trace("cause", "value", "%d", mncc->cause.value);
- add_trace("reason", NULL, "port is blocked");
- end_trace();
- send_and_free_mncc(p_m_g_instance, mncc->msg_type, mncc);
- new_state(PORT_STATE_RELEASE);
- trigger_work(&p_m_g_delete);
- return;
- }
-
/* caller info */
if (mncc->clir.inv)
p_callerinfo.present = INFO_PRESENT_RESTRICTED;
SCPY(p_callerinfo.imsi, mncc->imsi);
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);
+ SCPY(p_callerinfo.interface, p_g_interface_name);
/* dialing information */
SCAT(p_dialinginfo.id, mncc->called.number);
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 */
+ p_g_mode = p_capainfo.source_mode;
- /* hunt channel */
- ret = channel = hunt_bchannel();
- if (ret < 0)
- goto no_channel;
-
- /* open channel */
- ret = seize_bchannel(channel, 1);
- if (ret < 0) {
- no_channel:
- mncc = create_mncc(MNCC_REJ_REQ, p_m_g_callref);
- gsm_trace_header(p_m_mISDNport, this, MNCC_REJ_REQ, DIRECTION_OUT);
+ /* get list of offered payload types
+ * if list ist empty, the FR V1 is selected */
+ select_payload_type(mncc, payload_types, &payloads, sizeof(payload_types));
+ /* if no given payload type is supported, we assume */
+ if (!payloads) {
+ payload_types[0] = RTP_PT_GSM_FULL;
+ payloads = 1;
+ }
+#if 0
+ /* if no given payload type is supported, we reject the call */
+ if (!payloads) {
+ mncc = create_mncc(MNCC_REJ_REQ, callref);
+ gsm_trace_header(p_g_interface_name, this, MNCC_REJ_REQ, DIRECTION_OUT);
mncc->fields |= MNCC_F_CAUSE;
mncc->cause.coding = 3;
mncc->cause.location = 1;
- mncc->cause.value = 34;
+ mncc->cause.value = 65;
add_trace("cause", "coding", "%d", mncc->cause.coding);
add_trace("cause", "location", "%d", mncc->cause.location);
add_trace("cause", "value", "%d", mncc->cause.value);
- add_trace("reason", NULL, "no channel");
+ add_trace("reason", NULL, "Given speech codec(s) not supported");
end_trace();
- send_and_free_mncc(p_m_g_instance, mncc->msg_type, mncc);
+ send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
new_state(PORT_STATE_RELEASE);
- trigger_work(&p_m_g_delete);
+ trigger_work(&p_g_delete);
return;
}
- bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_USE);
- if (bchannel_open(p_m_b_index))
- goto no_channel;
+#endif
+
+ /* useruser */
/* what infos did we got ... */
- gsm_trace_header(p_m_mISDNport, this, msg_type, DIRECTION_IN);
+ gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
if (p_callerinfo.id[0])
add_trace("calling", "number", "%s", p_callerinfo.id);
else
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");
+ epoint->ep_app = new_endpointapp(epoint, 0, interface->app); //incoming
epointlist_new(epoint->ep_serial);
- /* modify lchan to GSM codec V1 */
- gsm_trace_header(p_m_mISDNport, this, MNCC_LCHAN_MODIFY, DIRECTION_OUT);
- 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);
- end_trace();
- send_and_free_mncc(p_m_g_instance, mode->msg_type, mode);
+ /* modify lchan in case of no rtp bridge */
+ if (!p_g_rtp_bridge)
+ modify_lchan(payload_types[0]);
/* 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) {
+ gsm_trace_header(p_g_interface_name, this, MNCC_CALL_PROC_REQ, DIRECTION_OUT);
+ proceeding = create_mncc(MNCC_CALL_PROC_REQ, p_g_callref);
+ if (p_g_tones) {
proceeding->fields |= MNCC_F_PROGRESS;
proceeding->progress.coding = 3; /* GSM */
proceeding->progress.location = 1;
add_trace("progress", "descr", "%d", proceeding->progress.descr);
}
end_trace();
- send_and_free_mncc(p_m_g_instance, proceeding->msg_type, proceeding);
+ send_and_free_mncc(p_g_lcr_gsm, proceeding->msg_type, proceeding);
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);
+ if (p_g_tones && !p_g_tch_connected) { /* only if ... */
+ gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
end_trace();
- frame = create_mncc(MNCC_FRAME_RECV, p_m_g_callref);
- send_and_free_mncc(p_m_g_instance, 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;
}
/* 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));
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);
+ if (p_g_rtp_bridge) {
+ struct gsm_mncc_rtp *rtp;
+ int i;
+
+ PDEBUG(DEBUG_GSM, "Request RTP peer info, before forwarding setup\n");
+ p_g_setup_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);
+
+ for (i = 0; i < (int)sizeof(message->param.setup.rtpinfo.payload_types) && i < payloads; i++) {
+ message->param.setup.rtpinfo.payload_types[i] = payload_types[i];
+ message->param.setup.rtpinfo.payloads++;
+ }
+
+ } else
+ message_put(message);
+
}
/*
* BSC sends message to port
*/
-static int message_bsc(struct gsm_network *net, int msg_type, void *arg)
+int message_bsc(struct lcr_gsm *lcr_gsm, int msg_type, void *arg)
{
struct gsm_mncc *mncc = (struct gsm_mncc *)arg;
unsigned int callref = mncc->callref;
class Port *port;
class Pgsm_bs *pgsm_bs = NULL;
char name[64];
- struct mISDNport *mISDNport;
+// struct mISDNport *mISDNport;
/* Special messages */
switch(msg_type) {
while(port) {
if ((port->p_type & PORT_CLASS_GSM_MASK) == PORT_CLASS_GSM_BS) {
pgsm_bs = (class Pgsm_bs *)port;
- if (pgsm_bs->p_m_g_callref == callref) {
+ if (pgsm_bs->p_g_callref == callref) {
break;
}
}
port = port->next;
}
- if (msg_type == GSM_TCHF_FRAME) {
+ if (msg_type == GSM_TCHF_FRAME
+ || msg_type == GSM_TCHF_BAD_FRAME) {
if (port) {
/* inject DTMF, if enabled */
- if (pgsm_bs->p_m_g_dtmf) {
+ if (pgsm_bs->p_g_dtmf) {
unsigned char data[160];
int i;
for (i = 0; i < 160; i++) {
- data[i] = pgsm_bs->p_m_g_dtmf[pgsm_bs->p_m_g_dtmf_index++];
- if (pgsm_bs->p_m_g_dtmf_index == 8000)
- pgsm_bs->p_m_g_dtmf_index = 0;
+ data[i] = pgsm_bs->p_g_dtmf[pgsm_bs->p_g_dtmf_index++];
+ if (pgsm_bs->p_g_dtmf_index == 8000)
+ pgsm_bs->p_g_dtmf_index = 0;
}
/* send */
- pgsm_bs->bchannel_send(PH_DATA_REQ, 0, data, 160);
+ pgsm_bs->bridge_tx(data, 160);
} else
pgsm_bs->frame_receive(arg);
+ /* if we do not bridge we need to inject audio, if available */
+ if (!pgsm_bs->p_bridge || pgsm_bs->p_tone_name[0]) {
+ unsigned char data[160];
+ int i;
+
+ i = pgsm_bs->read_audio(data, 160);
+ if (i)
+ pgsm_bs->audio_send(data, i);
+ }
}
return 0;
}
if (!port) {
+ struct interface *interface;
+
if (msg_type != MNCC_SETUP_IND)
return(0);
- /* find gsm port */
- mISDNport = mISDNport_first;
- while(mISDNport) {
- if (mISDNport->gsm_bs)
- break;
- mISDNport = mISDNport->next;
- }
- if (!mISDNport) {
+
+ interface = getinterfacebyname(lcr_gsm->interface_name);
+ if (!interface) {
struct gsm_mncc *rej;
rej = create_mncc(MNCC_REJ_REQ, callref);
add_trace("cause", "coding", "%d", rej->cause.coding);
add_trace("cause", "location", "%d", rej->cause.location);
add_trace("cause", "value", "%d", rej->cause.value);
+ add_trace("reason", NULL, "interface %s not found", lcr_gsm->interface_name);
end_trace();
- send_and_free_mncc(gsm->network, rej->msg_type, rej);
+ send_and_free_mncc(lcr_gsm, 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_bs = new Pgsm_bs(PORT_TYPE_GSM_BS_IN, mISDNport, name, NULL, 0, 0, B_MODE_TRANSPARENT)))
-
+ SPRINT(name, "%s-%d-in", interface->name, 0);
+ if (!(pgsm_bs = new Pgsm_bs(PORT_TYPE_GSM_BS_IN, name, NULL, interface)))
FATAL("Cannot create Port instance.\n");
}
pgsm_bs->setup_ind(msg_type, callref, mncc);
break;
+ case MNCC_RTP_CREATE:
+ pgsm_bs->rtp_create_ind(msg_type, callref, mncc);
+ break;
+
+ case MNCC_RTP_CONNECT:
+ pgsm_bs->rtp_connect_ind(msg_type, callref, mncc);
+ break;
+
case MNCC_START_DTMF_IND:
pgsm_bs->start_dtmf_ind(msg_type, callref, mncc);
break;
void Pgsm_bs::message_setup(unsigned int epoint_id, int message_id, union parameter *param)
{
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_redirinfo, ¶m->setup.redirinfo, sizeof(p_redirinfo));
/* no GSM MNCC connection */
- if (gsm->mncc_lfd.fd < 0) {
- gsm_trace_header(p_m_mISDNport, this, MNCC_SETUP_REQ, DIRECTION_OUT);
+ if (p_g_lcr_gsm->mncc_lfd.fd < 0) {
+ gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
add_trace("failure", NULL, "No MNCC connection.");
end_trace();
message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
- message->param.disconnectinfo.cause = 27; // temp. unavail.
+ message->param.disconnectinfo.cause = 41; // temp. failure.
message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
message_put(message);
new_state(PORT_STATE_RELEASE);
- trigger_work(&p_m_g_delete);
+ trigger_work(&p_g_delete);
return;
}
/* no number */
if (!p_dialinginfo.id[0]) {
- gsm_trace_header(p_m_mISDNport, this, MNCC_SETUP_REQ, DIRECTION_OUT);
+ gsm_trace_header(p_g_interface_name, 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.location = LOCATION_PRIVATE_LOCAL;
message_put(message);
new_state(PORT_STATE_RELEASE);
- trigger_work(&p_m_g_delete);
- 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);
- trigger_work(&p_m_g_delete);
+ trigger_work(&p_g_delete);
return;
}
- /* 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.");
+ /* unsupported codec for RTP bridge */
+ if (param->setup.rtpinfo.port) {
+ int i;
+
+ p_g_rtp_payloads = 0;
+ gsm_trace_header(p_g_interface_name, this, 1 /* codec negotioation */, DIRECTION_NONE);
+ for (i = 0; i < param->setup.rtpinfo.payloads; i++) {
+ switch (param->setup.rtpinfo.payload_types[i]) {
+ case RTP_PT_GSM_FULL:
+ case RTP_PT_GSM_EFR:
+ case RTP_PT_GSM_AMR:
+ case RTP_PT_GSM_HALF:
+ add_trace("rtp", "payload", "%d supported", param->setup.rtpinfo.payload_types[i]);
+ if (p_g_rtp_payloads < (int)sizeof(p_g_rtp_payload_types)) {
+ p_g_rtp_payload_types[p_g_rtp_payloads++] = param->setup.rtpinfo.payload_types[i];
+ p_g_rtp_payloads++;
+ }
+ break;
+ default:
+ add_trace("rtp", "payload", "%d unsupported", param->setup.rtpinfo.payload_types[i]);
+ }
+ }
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;
- message_put(message);
- new_state(PORT_STATE_RELEASE);
- trigger_work(&p_m_g_delete);
- return;
+ if (!p_g_rtp_payloads) {
+ gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
+ add_trace("failure", NULL, "No payload given that is supported by GSM");
+ end_trace();
+ message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
+ message->param.disconnectinfo.cause = 65;
+ message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
+ message_put(message);
+ new_state(PORT_STATE_RELEASE);
+ trigger_work(&p_g_delete);
+ return;
+ }
}
- 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.id, sizeof(p_callerinfo.id), &p_callerinfo.ntype, &p_callerinfo.present, p_g_interface_name);
/* attach only if not already */
epointlist = p_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);
+ gsm_trace_header(p_g_interface_name, this, 0, DIRECTION_OUT);
+ p_g_callref = new_callref++;
+ add_trace("callref", "new", "0x%x", p_g_callref);
end_trace();
- gsm_trace_header(p_m_mISDNport, this, MNCC_SETUP_REQ, DIRECTION_OUT);
- mncc = create_mncc(MNCC_SETUP_REQ, p_m_g_callref);
+ gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
+ mncc = create_mncc(MNCC_SETUP_REQ, p_g_callref);
/* caller information */
mncc->fields |= MNCC_F_CALLING;
mncc->calling.plan = 1;
add_trace("redir", "screen", "%d", mncc->redirecting.screen);
add_trace("redir", "number", "%s", mncc->redirecting.number);
}
- /* bearer capability */
- //todo
end_trace();
- send_and_free_mncc(p_m_g_instance, mncc->msg_type, mncc);
+ send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
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);
+ /* RTP bridge */
+ if (param->setup.rtpinfo.port) {
+ p_g_rtp_bridge = 1;
+ p_g_rtp_ip_remote = param->setup.rtpinfo.ip;
+ p_g_rtp_port_remote = param->setup.rtpinfo.port;
+ } else
+ p_g_rtp_bridge = 0;
}
/*
int gsm_bs_exit(int rc)
{
-#if 0
/* free gsm instance */
- if (gsm) {
- /* shutdown network */
- if (gsm->network)
- bsc_shutdown_net((struct gsm_network *)gsm->network);
- /* free network */
-// if (gsm->network) {
-// free((struct gsm_network *)gsm->network); /* TBD */
-// }
- }
-#endif
- return(rc);
-}
-
-extern "C" {
-
-static int mncc_q_enqueue(struct gsm_mncc *mncc, unsigned int len)
-{
- 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 (!gsm->mncc_q_hd && !gsm->mncc_q_tail) {
- /* the list head and tail both point to the new qe */
- gsm->mncc_q_hd = gsm->mncc_q_tail = qe;
- } else {
- /* append to tail of list */
- gsm->mncc_q_tail->next = qe;
- gsm->mncc_q_tail = qe;
- }
-
- gsm->mncc_lfd.when |= LCR_FD_WRITE;
-
- return 0;
-}
-
-static struct mncc_q_entry *mncc_q_dequeue(void)
-{
- struct mncc_q_entry *qe = gsm->mncc_q_hd;
- if (!qe)
- return NULL;
-
- /* dequeue the successfully sent message */
- gsm->mncc_q_hd = qe->next;
- if (!qe)
- return NULL;
- if (qe == gsm->mncc_q_tail)
- gsm->mncc_q_tail = NULL;
-
- return qe;
-}
-
-/* routine called by LCR code if it wants to send a message to OpenBSC */
-int mncc_send(struct gsm_network *instance, int msg_type, void *data)
-{
- int len = 0;
-
- /* 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;
- }
-
- return mncc_q_enqueue((struct gsm_mncc *)data, len);
-}
-
-} // extern "C"
-
-/* close MNCC socket */
-static int mncc_fd_close(struct lcr_fd *lfd)
-{
- class Port *port;
- class Pgsm_bs *pgsm_bs = 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_GSM_MASK) == PORT_CLASS_GSM_BS) {
- pgsm_bs = (class Pgsm_bs *)port;
- message = message_create(pgsm_bs->p_serial, ACTIVE_EPOINT(pgsm_bs->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_bs->new_state(PORT_STATE_RELEASE);
- trigger_work(&pgsm_bs->p_m_g_delete);
+ if (gsm_bs) {
+ if (gsm_bs->mncc_lfd.fd > -1) {
+ close(gsm_bs->mncc_lfd.fd);
+ unregister_fd(&gsm_bs->mncc_lfd);
}
- port = port->next;
- }
-
- /* flush the queue */
- while (mncc_q_dequeue())
- ;
-
- /* start the re-connect timer */
- schedule_timer(&gsm->socket_retry, SOCKET_RETRY_TIMER, 0);
-
- generate_dtmf();
-
- return 0;
-}
-/* read from OpenBSC via MNCC socket */
-static int mncc_fd_write(struct lcr_fd *lfd, void *inst, int idx)
-{
- struct mncc_q_entry *qe, *qe2;
- int rc;
-
- while (1) {
- qe = 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(lfd);
- if (rc < 0)
- return rc;
- if (rc < qe->len)
- return -1;
- /* dequeue the successfully sent message */
- qe2 = mncc_q_dequeue();
- assert(qe == qe2);
- free(qe);
+ del_timer(&gsm_bs->socket_retry);
+ free(gsm_bs);
+ gsm_bs = NULL;
}
- return 0;
-}
-
-/* read from OpenBSC via MNCC socket */
-static int mncc_fd_read(struct lcr_fd *lfd, void *inst, int idx)
-{
- int rc;
- static char buf[sizeof(struct gsm_mncc)+1024];
- struct gsm_mncc *mncc_prim = (struct gsm_mncc *) buf;
-
- memset(buf, 0, sizeof(buf));
- rc = recv(lfd->fd, buf, sizeof(buf), 0);
- if (rc == 0)
- return mncc_fd_close(lfd);
- if (rc < 0)
- return rc;
-
- /* Hand the MNCC message into LCR */
- return message_bsc(NULL, mncc_prim->msg_type, mncc_prim);
-}
-
-/* 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 *instance, int idx)
-{
- int rc = 0;
-
- if (what & LCR_FD_READ)
- rc = mncc_fd_read(lfd, instance, idx);
- if (rc < 0)
- return rc;
- if (what & LCR_FD_WRITE)
- rc = mncc_fd_write(lfd, instance, idx);
- return rc;
+ return(rc);
}
-static int socket_retry_cb(struct lcr_timer *timer, void *instance, int index)
+int gsm_bs_init(struct interface *interface)
{
- int fd, rc;
-
- 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 *) &gsm->sun,
- sizeof(gsm->sun));
- if (rc < 0) {
- PERROR("Could not connect to MNCC socket, "
- "retrying in %u seconds\n", SOCKET_RETRY_TIMER);
- close(fd);
- schedule_timer(&gsm->socket_retry, SOCKET_RETRY_TIMER, 0);
- } else {
- PDEBUG(DEBUG_GSM, "Connected to MNCC socket!\n");
- gsm->mncc_lfd.fd = fd;
- register_fd(&gsm->mncc_lfd, LCR_FD_READ, &mncc_fd_cb, NULL, 0);
- }
+ /* create gsm instance */
+ gsm_bs = (struct lcr_gsm *)MALLOC(sizeof(struct lcr_gsm));
- return 0;
-}
-
-int gsm_bs_init(void)
-{
- gsm->sun.sun_family = AF_UNIX;
- strcpy(gsm->sun.sun_path, "/tmp/bsc_mncc");
+ SCPY(gsm_bs->interface_name, interface->name);
+ gsm_bs->type = LCR_GSM_TYPE_NETWORK;
+ gsm_bs->sun.sun_family = AF_UNIX;
+ SCPY(gsm_bs->sun.sun_path, "/tmp/bsc_mncc");
- memset(&gsm->socket_retry, 0, sizeof(gsm->socket_retry));
- add_timer(&gsm->socket_retry, socket_retry_cb, NULL, 0);
+ memset(&gsm_bs->socket_retry, 0, sizeof(gsm_bs->socket_retry));
+ add_timer(&gsm_bs->socket_retry, mncc_socket_retry_cb, gsm_bs, 0);
/* do the initial connect */
- socket_retry_cb(&gsm->socket_retry, NULL, 0);
+ mncc_socket_retry_cb(&gsm_bs->socket_retry, gsm_bs, 0);
+
+ generate_dtmf();
return 0;
}
projects / lcr.git / blobdiff