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joinpbx.cpp
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joinpbx.cpp
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/*****************************************************************************\
** **
** Linux Call Router **
** **
**---------------------------------------------------------------------------**
** Copyright: Andreas Eversberg **
** **
** join functions **
** **
\*****************************************************************************/
#include "main.h"
//#define __u8 unsigned char
//#define __u16 unsigned short
//#define __u32 unsigned int
/* notify endpoint about state change (if any) */
static int notify_state_change(int join_id, int epoint_id, int old_state, int new_state)
{
int notify_off = 0, notify_on = 0;
struct lcr_msg *message;
if (old_state == new_state)
return(old_state);
switch(old_state) {
case NOTIFY_STATE_ACTIVE:
switch(new_state) {
case NOTIFY_STATE_HOLD:
notify_on = INFO_NOTIFY_REMOTE_HOLD;
break;
case NOTIFY_STATE_SUSPEND:
notify_on = INFO_NOTIFY_USER_SUSPENDED;
break;
case NOTIFY_STATE_CONFERENCE:
notify_on = INFO_NOTIFY_CONFERENCE_ESTABLISHED;
break;
}
break;
case NOTIFY_STATE_HOLD:
switch(new_state) {
case NOTIFY_STATE_ACTIVE:
notify_off = INFO_NOTIFY_REMOTE_RETRIEVAL;
break;
case NOTIFY_STATE_SUSPEND:
notify_off = INFO_NOTIFY_REMOTE_RETRIEVAL;
notify_on = INFO_NOTIFY_USER_SUSPENDED;
break;
case NOTIFY_STATE_CONFERENCE:
notify_off = INFO_NOTIFY_REMOTE_RETRIEVAL;
notify_on = INFO_NOTIFY_CONFERENCE_ESTABLISHED;
break;
}
break;
case NOTIFY_STATE_SUSPEND:
switch(new_state) {
case NOTIFY_STATE_ACTIVE:
notify_off = INFO_NOTIFY_USER_RESUMED;
break;
case NOTIFY_STATE_HOLD:
notify_off = INFO_NOTIFY_USER_RESUMED;
notify_on = INFO_NOTIFY_REMOTE_HOLD;
break;
case NOTIFY_STATE_CONFERENCE:
notify_off = INFO_NOTIFY_USER_RESUMED;
notify_on = INFO_NOTIFY_CONFERENCE_ESTABLISHED;
break;
}
break;
case NOTIFY_STATE_CONFERENCE:
switch(new_state) {
case NOTIFY_STATE_ACTIVE:
notify_off = INFO_NOTIFY_CONFERENCE_DISCONNECTED;
break;
case NOTIFY_STATE_HOLD:
notify_off = INFO_NOTIFY_CONFERENCE_DISCONNECTED;
notify_on = INFO_NOTIFY_REMOTE_HOLD;
break;
case NOTIFY_STATE_SUSPEND:
notify_off = INFO_NOTIFY_CONFERENCE_DISCONNECTED;
notify_on = INFO_NOTIFY_USER_SUSPENDED;
break;
}
break;
}
if (join_id && notify_off) {
message = message_create(join_id, epoint_id, JOIN_TO_EPOINT, MESSAGE_NOTIFY);
message->param.notifyinfo.notify = notify_off;
message_put(message);
}
if (join_id && notify_on) {
message = message_create(join_id, epoint_id, JOIN_TO_EPOINT, MESSAGE_NOTIFY);
message->param.notifyinfo.notify = notify_on;
message_put(message);
}
return(new_state);
}
/* debug function for join */
void joinpbx_debug(class JoinPBX *joinpbx, const char *function)
{
struct join_relation *relation;
struct port_list *portlist;
class Endpoint *epoint;
class Port *port;
char buffer[512];
if (!(options.deb & DEBUG_JOIN))
return;
PDEBUG(DEBUG_JOIN, "join(%d) start (called from %s)\n", joinpbx->j_serial, function);
relation = joinpbx->j_relation;
if (!relation)
PDEBUG(DEBUG_JOIN, "join has no relations\n");
while(relation) {
epoint = find_epoint_id(relation->epoint_id);
if (!epoint) {
PDEBUG(DEBUG_JOIN, "warning: relations epoint id=%d doesn't exists!\n", relation->epoint_id);
relation = relation->next;
continue;
}
buffer[0] = '\0';
UPRINT(strchr(buffer,0), "*** ep%d", relation->epoint_id);
UPRINT(strchr(buffer,0), " ifs=");
portlist = epoint->ep_portlist;
while(portlist) {
port = find_port_id(portlist->port_id);
if (port)
UPRINT(strchr(buffer,0), "%s,", port->p_name);
else
UPRINT(strchr(buffer,0), "<port %d doesn't exist>,", portlist->port_id);
portlist = portlist->next;
}
// UPRINT(strchr(buffer,0), " endpoint=%d on=%s hold=%s", epoint->ep_serial, (epoint->ep_join_id==joinpbx->j_serial)?"yes":"no", (epoint->get_hold_id()==joinpbx->j_serial)?"yes":"no");
UPRINT(strchr(buffer,0), " endpoint=%d on=%s", epoint->ep_serial, (epoint->ep_join_id==joinpbx->j_serial)?"yes":"no");
switch(relation->type) {
case RELATION_TYPE_CALLING:
UPRINT(strchr(buffer,0), " type=CALLING");
break;
case RELATION_TYPE_SETUP:
UPRINT(strchr(buffer,0), " type=SETUP");
break;
case RELATION_TYPE_CONNECT:
UPRINT(strchr(buffer,0), " type=CONNECT");
break;
default:
UPRINT(strchr(buffer,0), " type=unknown");
break;
}
if (relation->channel_state)
UPRINT(strchr(buffer,0), " channel=CONNECT");
else
UPRINT(strchr(buffer,0), " channel=HOLD");
switch(relation->tx_state) {
case NOTIFY_STATE_ACTIVE:
UPRINT(strchr(buffer,0), " tx_state=ACTIVE");
break;
case NOTIFY_STATE_HOLD:
UPRINT(strchr(buffer,0), " tx_state=HOLD");
break;
case NOTIFY_STATE_SUSPEND:
UPRINT(strchr(buffer,0), " tx_state=SUSPEND");
break;
case NOTIFY_STATE_CONFERENCE:
UPRINT(strchr(buffer,0), " tx_state=CONFERENCE");
break;
default:
UPRINT(strchr(buffer,0), " tx_state=unknown");
break;
}
switch(relation->rx_state) {
case NOTIFY_STATE_ACTIVE:
UPRINT(strchr(buffer,0), " rx_state=ACTIVE");
break;
case NOTIFY_STATE_HOLD:
UPRINT(strchr(buffer,0), " rx_state=HOLD");
break;
case NOTIFY_STATE_SUSPEND:
UPRINT(strchr(buffer,0), " rx_state=SUSPEND");
break;
case NOTIFY_STATE_CONFERENCE:
UPRINT(strchr(buffer,0), " rx_state=CONFERENCE");
break;
default:
UPRINT(strchr(buffer,0), " rx_state=unknown");
break;
}
PDEBUG(DEBUG_JOIN, "%s\n", buffer);
relation = relation->next;
}
PDEBUG(DEBUG_JOIN, "end\n");
}
int update_bridge(struct lcr_work *work, void *instance, int index);
/*
* constructor for a new join
* the join will have a relation to the calling endpoint
*/
JoinPBX::JoinPBX(class Endpoint *epoint) : Join()
{
struct join_relation *relation;
// char filename[256];
if (!epoint)
FATAL("epoint is NULL.\n");
PDEBUG(DEBUG_JOIN, "creating new join and connecting it to the endpoint.\n");
j_type = JOIN_TYPE_PBX;
j_caller[0] = '\0';
j_caller_id[0] = '\0';
j_dialed[0] = '\0';
j_todial[0] = '\0';
j_pid = getpid();
j_partyline = 0;
j_partyline_jingle = 0;
j_3pty = 0;
j_multicause = 0;
j_multilocation = 0;
memset(&j_updatebridge, 0, sizeof(j_updatebridge));
add_work(&j_updatebridge, update_bridge, this, 0);
/* initialize a relation only to the calling interface */
relation = j_relation = (struct join_relation *)MALLOC(sizeof(struct join_relation));
cmemuse++;
relation->type = RELATION_TYPE_CALLING;
relation->channel_state = 0; /* audio is assumed on a new join */
relation->tx_state = NOTIFY_STATE_ACTIVE; /* new joins always assumed to be active */
relation->rx_state = NOTIFY_STATE_ACTIVE; /* new joins always assumed to be active */
relation->epoint_id = epoint->ep_serial;
if (options.deb & DEBUG_JOIN)
joinpbx_debug(this, "JoinPBX::Constructor(new join)");
}
/*
* join descructor
*/
JoinPBX::~JoinPBX()
{
struct join_relation *relation, *rtemp;
relation = j_relation;
while(relation) {
rtemp = relation->next;
FREE(relation, sizeof(struct join_relation));
cmemuse--;
relation = rtemp;
}
/* remove 3PTY from other join */
if (j_3pty) {
class Join *join;
class JoinPBX *joinpbx;
join = find_join_id(j_3pty);
if (join && join->j_type == JOIN_TYPE_PBX) {
joinpbx = (class JoinPBX *)join;
joinpbx->j_3pty = 0;
trigger_work(&joinpbx->j_updatebridge);
}
}
del_work(&j_updatebridge);
}
/* bridge sets the audio flow of all bchannels assiociated to 'this' join
* also it changes and notifies active/hold/conference states
*/
int update_bridge(struct lcr_work *work, void *instance, int index)
{
class JoinPBX *joinpbx = (class JoinPBX *)instance;
joinpbx->bridge();
return 0;
}
void JoinPBX::bridge(void)
{
struct join_relation *relation;
struct lcr_msg *message;
int numconnect = 0, relations = 0;
class Endpoint *epoint;
struct port_list *portlist;
class Port *port;
unsigned int bridge_id;
class Join *join_3pty;
class JoinPBX *joinpbx_3pty;
#ifdef DEBUG_COREBRIDGE
int allmISDN = 0; // never set for debug purpose
#else
int allmISDN = 1; // set until a non-mISDN relation is found
#endif
/* bridge id is the serial of join
* if we have a 3pty with another join, we always use the lowest brigde id.
* this way we use common ids, so both joins share same bridge */
if (j_3pty && j_3pty < j_serial)
bridge_id = j_3pty;
else
bridge_id = j_serial;
relation = j_relation;
while(relation) {
/* count all relations */
relations++;
/* check for relation's objects */
epoint = find_epoint_id(relation->epoint_id);
if (!epoint) {
PERROR("software error: relation without existing endpoints.\n");
relation = relation->next;
continue;
}
portlist = epoint->ep_portlist;
if (!portlist) {
PDEBUG(DEBUG_JOIN, "join%d ignoring relation without port object.\n", j_serial);
//#warning testing: keep on hold until single audio stream available
relation->channel_state = 0;
relation = relation->next;
continue;
}
if (portlist->next) {
PDEBUG(DEBUG_JOIN, "join%d ignoring relation with ep%d due to port_list.\n", j_serial, epoint->ep_serial);
//#warning testing: keep on hold until single audio stream available
relation->channel_state = 0;
relation = relation->next;
continue;
}
port = find_port_id(portlist->port_id);
if (!port) {
PDEBUG(DEBUG_JOIN, "join%d ignoring relation without existing port object.\n", j_serial);
relation = relation->next;
continue;
}
if ((port->p_type&PORT_CLASS_MASK)!=PORT_CLASS_mISDN) {
PDEBUG(DEBUG_JOIN, "join%d ignoring relation ep%d because it's port is not mISDN.\n", j_serial, epoint->ep_serial);
if (allmISDN) {
PDEBUG(DEBUG_JOIN, "join%d not all endpoints are mISDN.\n", j_serial);
allmISDN = 0;
}
relation = relation->next;
continue;
}
relation = relation->next;
}
/* check if 3pty members have no mISDN, so bridging via mISDN/lcr will be selected correctly */
join_3pty = find_join_id(j_3pty);
if (join_3pty && join_3pty->j_type == JOIN_TYPE_PBX) {
joinpbx_3pty = (class JoinPBX *)join_3pty;
relation = joinpbx_3pty->j_relation;
while(relation) {
#if 0
no need to count, because j_3pty is taken into account below when checking relations
/* count all relations */
relations++;
#endif
/* check for relation's objects */
epoint = find_epoint_id(relation->epoint_id);
if (!epoint) {
PERROR("software error: relation without existing endpoints.\n");
relation = relation->next;
continue;
}
portlist = epoint->ep_portlist;
if (!portlist) {
PDEBUG(DEBUG_JOIN, "other 3pty join %d: ignoring relation without port object.\n", joinpbx_3pty->j_serial);
//#warning testing: keep on hold until single audio stream available
relation->channel_state = 0;
relation = relation->next;
continue;
}
if (portlist->next) {
PDEBUG(DEBUG_JOIN, "other 3pty join %d: ignoring relation with ep%d due to port_list.\n", joinpbx_3pty->j_serial, epoint->ep_serial);
//#warning testing: keep on hold until single audio stream available
relation->channel_state = 0;
relation = relation->next;
continue;
}
port = find_port_id(portlist->port_id);
if (!port) {
PDEBUG(DEBUG_JOIN, "other 3pty join %d: ignoring relation without existing port object.\n", joinpbx_3pty->j_serial);
relation = relation->next;
continue;
}
if ((port->p_type&PORT_CLASS_MASK)!=PORT_CLASS_mISDN) {
PDEBUG(DEBUG_JOIN, "other 3pty join %d: ignoring relation ep%d because it's port is not mISDN.\n", joinpbx_3pty->j_serial, epoint->ep_serial);
if (allmISDN) {
PDEBUG(DEBUG_JOIN, "other 3pty join %d: not all endpoints are mISDN.\n", joinpbx_3pty->j_serial);
allmISDN = 0;
}
relation = relation->next;
continue;
}
relation = relation->next;
}
}
PDEBUG(DEBUG_JOIN, "join%d members=%d %s\n", j_serial, relations, (allmISDN)?"(all are mISDN-members)":"(not all are mISDN-members)");
/* we notify all relations about rxdata. */
relation = j_relation;
while(relation) {
/* count connected relations */
if ((relation->channel_state == 1)
&& (relation->rx_state != NOTIFY_STATE_SUSPEND)
&& (relation->rx_state != NOTIFY_STATE_HOLD))
numconnect ++;
/* remove unconnected parties from conference, also remove remotely disconnected parties so conference will not be disturbed. */
/* mISDN */
if (relation->channel_state == 1
&& relation->rx_state != NOTIFY_STATE_HOLD
&& relation->rx_state != NOTIFY_STATE_SUSPEND
&& relations>1 // no conf with one member
&& allmISDN) { // no conf if any member is not mISDN
message = message_create(j_serial, relation->epoint_id, JOIN_TO_EPOINT, MESSAGE_mISDNSIGNAL);
message->param.mISDNsignal.message = mISDNSIGNAL_CONF;
message->param.mISDNsignal.conf = (bridge_id << 16) | j_pid;
PDEBUG(DEBUG_JOIN, "join%d EP%d +on+ id: 0x%08x\n", j_serial, relation->epoint_id, message->param.mISDNsignal.conf);
message_put(message);
} else {
message = message_create(j_serial, relation->epoint_id, JOIN_TO_EPOINT, MESSAGE_mISDNSIGNAL);
message->param.mISDNsignal.message = mISDNSIGNAL_CONF;
message->param.mISDNsignal.conf = 0;
PDEBUG(DEBUG_JOIN, "join%d EP%d +off+ id: 0x%08x\n", j_serial, relation->epoint_id, message->param.mISDNsignal.conf);
message_put(message);
}
/* core bridge */
if (relation->channel_state == 1
&& relation->rx_state != NOTIFY_STATE_HOLD
&& relation->rx_state != NOTIFY_STATE_SUSPEND
&& relations>1 // no bridge with one member
&& !allmISDN) { // no bridge if all members are mISDN
message = message_create(j_serial, relation->epoint_id, JOIN_TO_EPOINT, MESSAGE_BRIDGE);
message->param.bridge_id = bridge_id;
PDEBUG(DEBUG_JOIN, "join%u EP%u requests bridge=%u\n", j_serial, relation->epoint_id, bridge_id);
message_put(message);
} else {
message = message_create(j_serial, relation->epoint_id, JOIN_TO_EPOINT, MESSAGE_BRIDGE);
message->param.bridge_id = 0;
PDEBUG(DEBUG_JOIN, "join%u EP%u drop bridge=%u\n", j_serial, relation->epoint_id, bridge_id);
message_put(message);
}
relation = relation->next;
}
/* two people just exchange their states */
if (!j_3pty && relations==2 && !j_partyline) {
PDEBUG(DEBUG_JOIN, "join%d 2 relations / no partyline\n", j_serial);
relation = j_relation;
relation->tx_state = notify_state_change(j_serial, relation->epoint_id, relation->tx_state, relation->next->rx_state);
relation->next->tx_state = notify_state_change(j_serial, relation->next->epoint_id, relation->next->tx_state, relation->rx_state);
} else
/* one member in a join, so we put her on hold */
if (!j_3pty && (relations==1 || numconnect==1)/* && !j_partyline_jingle*/) {
PDEBUG(DEBUG_JOIN, "join%d 1 member or only 1 connected, put on hold\n", j_serial);
relation = j_relation;
while(relation) {
if ((relation->channel_state == 1)
&& (relation->rx_state != NOTIFY_STATE_SUSPEND)
&& (relation->rx_state != NOTIFY_STATE_HOLD))
relation->tx_state = notify_state_change(j_serial, relation->epoint_id, relation->tx_state, NOTIFY_STATE_HOLD);
relation = relation->next;
}
} else {
/* if conference/partyline (or more than two members and more than one is connected), so we set conference state */
PDEBUG(DEBUG_JOIN, "join%d %d members, %d connected, signal conference\n", j_serial, relations, numconnect);
relation = j_relation;
while(relation) {
if ((relation->channel_state == 1)
&& (relation->rx_state != NOTIFY_STATE_SUSPEND)
&& (relation->rx_state != NOTIFY_STATE_HOLD))
relation->tx_state = notify_state_change(j_serial, relation->epoint_id, relation->tx_state, NOTIFY_STATE_CONFERENCE);
relation = relation->next;
}
}
}
/* release join from endpoint
* if the join has two relations, all relations are freed and the join will be
* destroyed
* on outgoing relations, the cause is collected, if not connected
* returns if join has been destroyed
*/
int JoinPBX::release(struct join_relation *relation, int location, int cause)
{
struct join_relation *reltemp, **relationpointer;
struct lcr_msg *message;
class Join *join;
int destroy = 0;
/* remove from bridge */
if (relation->channel_state != 0) {
relation->channel_state = 0;
trigger_work(&j_updatebridge);
// note: if join is not released, bridge must be updated
}
/* detach given interface */
reltemp = j_relation;
relationpointer = &j_relation;
while(reltemp) {
/* endpoint of function call */
if (relation == reltemp)
break;
relationpointer = &reltemp->next;
reltemp = reltemp->next;
}
if (!reltemp)
FATAL("relation not in list of our relations. this must not happen.\n");
//printf("releasing relation %d\n", reltemp->epoint_id);
*relationpointer = reltemp->next;
FREE(reltemp, sizeof(struct join_relation));
cmemuse--;
relation = reltemp = NULL; // just in case of reuse fault;
/* if no more relation */
if (!j_relation) {
PDEBUG(DEBUG_JOIN, "join is completely removed.\n");
/* there is no more endpoint related to the join */
destroy = 1;
delete this;
// end of join object!
PDEBUG(DEBUG_JOIN, "join completely removed!\n");
} else
/* if join is a party line */
if (j_partyline) {
PDEBUG(DEBUG_JOIN, "join is a conference room, so we keep it alive until the last party left.\n");
} else
/* if only one relation left */
if (!j_relation->next) {
PDEBUG(DEBUG_JOIN, "join has one relation left, so we send it a release with the given cause %d.\n", cause);
message = message_create(j_serial, j_relation->epoint_id, JOIN_TO_EPOINT, MESSAGE_RELEASE);
message->param.disconnectinfo.cause = cause;
message->param.disconnectinfo.location = location;
message_put(message);
destroy = 1;
delete this;
// end of join object!
PDEBUG(DEBUG_JOIN, "join completely removed!\n");
}
join = join_first;
while(join) {
if (options.deb & DEBUG_JOIN && join->j_type==JOIN_TYPE_PBX)
joinpbx_debug((class JoinPBX *)join, "join_release{all joins left}");
join = join->next;
}
PDEBUG(DEBUG_JOIN, "join_release(): ended.\n");
return(destroy);
}
/* count number of relations in a join
*/
int joinpbx_countrelations(unsigned int join_id)
{
struct join_relation *relation;
int i;
class Join *join;
class JoinPBX *joinpbx;
join = find_join_id(join_id);
if (!join)
return(0);
if (join->j_type != JOIN_TYPE_PBX)
return(0);
joinpbx = (class JoinPBX *)join;
i = 0;
relation = joinpbx->j_relation;
while(relation) {
i++;
relation = relation->next;
}
return(i);
}
/* check if one is calling and all other relations are setup-realations */
int joinpbx_onecalling_othersetup(struct join_relation *relation)
{
int calling = 0, other = 0;
while(relation) {
switch(relation->type) {
case RELATION_TYPE_CALLING:
calling++;
break;
case RELATION_TYPE_SETUP:
break;
default:
other++;
break;
}
relation = relation->next;
}
if (calling == 1 && other == 0)
return(1);
return(0);
}
void JoinPBX::remove_relation(struct join_relation *relation)
{
struct join_relation *temp, **tempp;
if (!relation)
return;
temp = j_relation;
tempp = &j_relation;
while(temp) {
if (temp == relation)
break;
tempp = &temp->next;
temp = temp->next;
}
if (!temp) {
PERROR("relation not in join.\n");
return;
}
PDEBUG(DEBUG_JOIN, "removing relation.\n");
*tempp = relation->next;
FREE(temp, sizeof(struct join_relation));
cmemuse--;
}
struct join_relation *JoinPBX::add_relation(void)
{
struct join_relation *relation;
if (!j_relation) {
PERROR("there is no first relation to this join\n");
return(NULL);
}
relation = j_relation;
while(relation->next)
relation = relation->next;
relation->next = (struct join_relation *)MALLOC(sizeof(struct join_relation));
cmemuse++;
/* the record pointer is set at the first time the data is received for the relation */
// if (options.deb & DEBUG_JOIN)
// joinpbx_debug(join, "add_relation");
return(relation->next);
}
/* epoint sends a message to a join
*
*/
void JoinPBX::message_epoint(unsigned int epoint_id, int message_type, union parameter *param)
{
class Join *cl;
struct join_relation *relation, *reltemp;
int num;
int new_state;
struct lcr_msg *message;
// int size, writesize, oldpointer;
char *number, *numbers;
if (!epoint_id) {
PERROR("software error, epoint == NULL\n");
return;
}
// if (options.deb & DEBUG_JOIN) {
// PDEBUG(DEBUG_JOIN, "message %d received from ep%d.\n", message, epoint->ep_serial);
// joinpbx_debug(join,"Join::message_epoint");
// }
if (options.deb & DEBUG_JOIN) {
if (message_type) {
cl = join_first;
while(cl) {
if (cl->j_type == JOIN_TYPE_PBX)
joinpbx_debug((class JoinPBX *)cl, "Join::message_epoint{all joins before processing}");
cl = cl->next;
}
}
}
/* check relation */
relation = j_relation;
while(relation) {
if (relation->epoint_id == epoint_id)
break;
relation = relation->next;
}
if (!relation) {
PDEBUG(DEBUG_JOIN, "no relation back to the endpoint found, ignoring (join=%d, endpoint=%d)\n", j_serial, epoint_id);
return;
}
/* count relations */
num=joinpbx_countrelations(j_serial);
/* process party line */
if (message_type == MESSAGE_SETUP) if (param->setup.partyline && !j_partyline) {
j_partyline = param->setup.partyline;
j_partyline_jingle = param->setup.partyline_jingle;
}
if (j_partyline) {
switch(message_type) {
case MESSAGE_SETUP:
PDEBUG(DEBUG_JOIN, "respsone with connect in partyline mode.\n");
relation->type = RELATION_TYPE_CONNECT;
message = message_create(j_serial, epoint_id, JOIN_TO_EPOINT, MESSAGE_CONNECT);
SPRINT(message->param.connectinfo.id, "%d", j_partyline);
message->param.connectinfo.ntype = INFO_NTYPE_UNKNOWN;
message_put(message);
trigger_work(&j_updatebridge);
if (j_partyline_jingle)
play_jingle(1);
break;
case MESSAGE_AUDIOPATH:
PDEBUG(DEBUG_JOIN, "join received channel message: %d.\n", param->audiopath);
if (relation->channel_state != param->audiopath) {
relation->channel_state = param->audiopath;
trigger_work(&j_updatebridge);
if (options.deb & DEBUG_JOIN)
joinpbx_debug(this, "Join::message_epoint{after setting new channel state}");
}
break;
/* track notify */
case MESSAGE_NOTIFY:
switch(param->notifyinfo.notify) {
case INFO_NOTIFY_USER_SUSPENDED:
case INFO_NOTIFY_USER_RESUMED:
case INFO_NOTIFY_REMOTE_HOLD:
case INFO_NOTIFY_REMOTE_RETRIEVAL:
case INFO_NOTIFY_CONFERENCE_ESTABLISHED:
case INFO_NOTIFY_CONFERENCE_DISCONNECTED:
new_state = track_notify(relation->rx_state, param->notifyinfo.notify);
if (new_state != relation->rx_state) {
relation->rx_state = new_state;
trigger_work(&j_updatebridge);
if (options.deb & DEBUG_JOIN)
joinpbx_debug(this, "Join::message_epoint{after setting new rx state}");
}
break;
}
break;
case MESSAGE_DISCONNECT:
PDEBUG(DEBUG_JOIN, "releasing after receiving disconnect, because join in partyline mode.\n");
message = message_create(j_serial, epoint_id, JOIN_TO_EPOINT, MESSAGE_RELEASE);
message->param.disconnectinfo.cause = CAUSE_NORMAL;
message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
message_put(message);
// fall through
case MESSAGE_RELEASE:
PDEBUG(DEBUG_JOIN, "releasing from join\n");
release(relation, 0, 0);
if (j_partyline_jingle)
play_jingle(0);
break;
default:
PDEBUG(DEBUG_JOIN, "ignoring message, because join in partyline mode.\n");
}
return;
}
/* process messages */
switch(message_type) {
/* process audio path message */
case MESSAGE_AUDIOPATH:
PDEBUG(DEBUG_JOIN, "join received channel message: audiopath=%d, current relation's channel_state=%d\n", param->audiopath, relation->channel_state);
if (relation->channel_state != param->audiopath) {
relation->channel_state = param->audiopath;
trigger_work(&j_updatebridge);
if (options.deb & DEBUG_JOIN)
joinpbx_debug(this, "Join::message_epoint{after setting new channel state}");
}
return;
/* track notify */
case MESSAGE_NOTIFY:
switch(param->notifyinfo.notify) {
case INFO_NOTIFY_USER_SUSPENDED:
case INFO_NOTIFY_USER_RESUMED:
case INFO_NOTIFY_REMOTE_HOLD:
case INFO_NOTIFY_REMOTE_RETRIEVAL:
case INFO_NOTIFY_CONFERENCE_ESTABLISHED:
case INFO_NOTIFY_CONFERENCE_DISCONNECTED:
new_state = track_notify(relation->rx_state, param->notifyinfo.notify);
if (new_state != relation->rx_state) {
relation->rx_state = new_state;
trigger_work(&j_updatebridge);
if (options.deb & DEBUG_JOIN)
joinpbx_debug(this, "Join::message_epoint{after setting new rx state}");
}
break;
default:
/* send notification to all other endpoints */
reltemp = j_relation;
while(reltemp) {
if (reltemp->epoint_id!=epoint_id && reltemp->epoint_id) {
message = message_create(j_serial, reltemp->epoint_id, JOIN_TO_EPOINT, MESSAGE_NOTIFY);
memcpy(&message->param, param, sizeof(union parameter));
message_put(message);
}
reltemp = reltemp->next;
}
}
return;
/* relations sends a connect */
case MESSAGE_CONNECT:
/* outgoing setup type becomes connected */
if (relation->type == RELATION_TYPE_SETUP)
relation->type = RELATION_TYPE_CONNECT;
/* release other relations in setup state */
release_again:
reltemp = j_relation;
while(reltemp) {
//printf("connect, checking relation %d\n", reltemp->epoint_id);
if (reltemp->type == RELATION_TYPE_SETUP) {
//printf("relation %d is of type setup, releasing\n", reltemp->epoint_id);
/* send release to endpoint */
message = message_create(j_serial, reltemp->epoint_id, JOIN_TO_EPOINT, MESSAGE_RELEASE);
message->param.disconnectinfo.cause = CAUSE_NONSELECTED;
message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
message_put(message);
if (release(reltemp, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL)) // dummy cause, should not be used, since calling and connected endpoint still exist afterwards.
return; // must return, because join IS destroyed
goto release_again;
}
if (reltemp->type == RELATION_TYPE_CALLING)
reltemp->type = RELATION_TYPE_CONNECT;
reltemp = reltemp->next;
}
break; // continue with our message
/* release is sent by endpoint */
case MESSAGE_RELEASE:
switch(relation->type) {
case RELATION_TYPE_SETUP: /* by called */
/* collect cause and send collected cause */
collect_cause(&j_multicause, &j_multilocation, param->disconnectinfo.cause, param->disconnectinfo.location);
if (j_multicause)
release(relation, j_multilocation, j_multicause);
else
release(relation, LOCATION_PRIVATE_LOCAL, CAUSE_UNSPECIFIED);
break;
case RELATION_TYPE_CALLING: /* by calling */
/* remove us, if we don't have a called releation yet */
if (!j_relation->next) {
release(j_relation, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL);
return; // must return, because join IS destroyed
}
/* in a conf, we don't kill the other members */
if (num > 2 && !joinpbx_onecalling_othersetup(j_relation)) {
release(relation, 0, 0);
return;
}
/* remove all relations that are of called type */
release_again2:
reltemp = j_relation;
while(reltemp) {
if (reltemp->type == RELATION_TYPE_SETUP) {
/* send release to endpoint */
message = message_create(j_serial, reltemp->epoint_id, JOIN_TO_EPOINT, message_type);
memcpy(&message->param, param, sizeof(union parameter));
message_put(message);
if (release(reltemp, LOCATION_PRIVATE_LOCAL, CAUSE_NORMAL))
return; // must return, because join IS destroyed
goto release_again2;
}
reltemp = reltemp->next;
}
PERROR("we are still here, this should not happen\n");
break;
default: /* by connected */
/* send current cause */
release(relation, param->disconnectinfo.location, param->disconnectinfo.cause);
}
return; // must return, because join may be destroyed
}
/* check number of relations */
if (num > 2 && !joinpbx_onecalling_othersetup(j_relation) && message_type != MESSAGE_CONNECT) {
PDEBUG(DEBUG_JOIN, "we are in a conference, so we ignore the messages, except MESSAGE_CONNECT.\n");
return;
}
/* if join has no other relation, we process the setup message */
if (num == 1) {
switch(message_type) {
case MESSAGE_SETUP:
if (param->setup.dialinginfo.itype == INFO_ITYPE_ISDN_EXTENSION) {
/* in case of keypad */
numbers = param->setup.dialinginfo.keypad;
if (numbers[0]) {
while((number = strsep(&numbers, ","))) {
if (out_setup(epoint_id, message_type, param, NULL, number))
return; // join destroyed
}
/* after keypad finish dialing */
break;
}
/* dialed number */
numbers = param->setup.dialinginfo.id;
while((number = strsep(&numbers, ","))) {
if (out_setup(epoint_id, message_type, param, number, NULL))
return; // join destroyed
}
break;
}
if (out_setup(epoint_id, message_type, param, param->setup.dialinginfo.id, param->setup.dialinginfo.keypad))
return; // join destroyed
break;
default:
PDEBUG(DEBUG_JOIN, "no need to send a message because there is no other endpoint than the calling one.\n");
}
} else {
/* sending message to other relation(s) */
relation = j_relation;
while(relation) {
if (relation->epoint_id != epoint_id) {
PDEBUG(DEBUG_JOIN, "sending message ep%ld -> ep%ld.\n", epoint_id, relation->epoint_id);
message = message_create(j_serial, relation->epoint_id, JOIN_TO_EPOINT, message_type);
memcpy(&message->param, param, sizeof(union parameter));
message_put(message);
PDEBUG(DEBUG_JOIN, "message sent.\n");
}
relation = relation->next;
}
}
}
int track_notify(int oldstate, int notify)
{
int newstate = oldstate;
switch(notify) {
case INFO_NOTIFY_USER_RESUMED:
case INFO_NOTIFY_REMOTE_RETRIEVAL:
case INFO_NOTIFY_CONFERENCE_DISCONNECTED:
case INFO_NOTIFY_RESERVED_CT_1:
case INFO_NOTIFY_RESERVED_CT_2:
case INFO_NOTIFY_CALL_IS_DIVERTING:
newstate = NOTIFY_STATE_ACTIVE;
break;
case INFO_NOTIFY_USER_SUSPENDED:
newstate = NOTIFY_STATE_SUSPEND;
break;
case INFO_NOTIFY_REMOTE_HOLD:
newstate = NOTIFY_STATE_HOLD;
break;
case INFO_NOTIFY_CONFERENCE_ESTABLISHED:
newstate = NOTIFY_STATE_CONFERENCE;
break;
}
return(newstate);
}