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dss1.cpp
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/*****************************************************************************\
** **
** LCR **
** **
**---------------------------------------------------------------------------**
** Copyright: Andreas Eversberg **
** **
** mISDN dss1 **
** **
\*****************************************************************************/
#include "main.h"
#include "myisdn.h"
// socket mISDN
//#include <sys/socket.h>
extern "C" {
}
#include <mISDN/q931.h>
#include <mISDN/suppserv.h>
#ifdef OLD_MT_ASSIGN
extern unsigned int mt_assign_pid;
#endif
#include "ie.cpp"
static int delete_event(struct lcr_work *work, void *instance, int index);
/*
* constructor
*/
Pdss1::Pdss1(int type, struct mISDNport *mISDNport, char *portname, struct port_settings *settings, struct interface *interface, int channel, int exclusive, int mode) : PmISDN(type, mISDNport, portname, settings, interface, channel, exclusive, mode)
{
p_callerinfo.itype = (mISDNport->ifport->interface->extension)?INFO_ITYPE_ISDN_EXTENSION:INFO_ITYPE_ISDN;
p_m_d_ntmode = mISDNport->ntmode;
p_m_d_tespecial = mISDNport->tespecial;
p_m_d_l3id = 0;
memset(&p_m_d_delete, 0, sizeof(p_m_d_delete));
add_work(&p_m_d_delete, delete_event, this, 0);
p_m_d_ces = -1;
p_m_d_queue[0] = '\0';
p_m_d_notify_pending = NULL;
p_m_d_collect_cause = 0;
p_m_d_collect_location = 0;
PDEBUG(DEBUG_ISDN, "Created new mISDNPort(%s). Currently %d objects use, %s%s port #%d\n", portname, mISDNport->use, (mISDNport->ntmode)?"NT":"TE", (mISDNport->tespecial)?" (special)":"", p_m_portnum);
}
/*
* destructor
*/
Pdss1::~Pdss1()
{
del_work(&p_m_d_delete);
/* remove queued message */
if (p_m_d_notify_pending)
message_free(p_m_d_notify_pending);
}
/*
* create layer 3 message
*/
static struct l3_msg *create_l3msg(void)
{
struct l3_msg *l3m;
l3m = alloc_l3_msg();
if (l3m)
return(l3m);
FATAL("Cannot allocate memory, system overloaded.\n");
exit(0); // make gcc happy
}
/*
* if we received a first reply to the setup message,
* we will check if we have now channel information
* return: <0: error, call is released, -cause is given
* 0: ok, nothing to do
*/
int Pdss1::received_first_reply_to_setup(unsigned int cmd, int channel, int exclusive)
{
int ret;
l3_msg *l3m;
/* correct exclusive to 0, if no explicit channel was given */
if (exclusive<0 || channel<=0)
exclusive = 0;
/* select scenario */
if (p_m_b_channel && p_m_b_exclusive) {
/*** we gave an exclusive channel (or if we are done) ***/
/* if not first reply, we are done */
if (p_state != PORT_STATE_OUT_SETUP)
return(0);
chan_trace_header(p_m_mISDNport, this, "CHANNEL SELECTION (first reply to setup)", DIRECTION_NONE);
add_trace("channel", "request", "%d (forced)", p_m_b_channel);
add_trace("channel", "reply", (channel>=0)?"%d":"(none)", channel);
/* if give channel not accepted or not equal */
if (channel!=-1 && p_m_b_channel!=channel) {
add_trace("conclusion", NULL, "forced channel not accepted");
end_trace();
ret = -44;
goto channelerror;
}
add_trace("conclusion", NULL, "channel was accepted");
add_trace("connect", "channel", "%d", p_m_b_channel);
end_trace();
/* activate our exclusive channel */
bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_USE);
} else
if (p_m_b_channel) {
/*** we gave a non-exclusive channel ***/
/* if not first reply, we are done */
if (p_state != PORT_STATE_OUT_SETUP)
return(0);
chan_trace_header(p_m_mISDNport, this, "CHANNEL SELECTION (first reply to setup)", DIRECTION_NONE);
add_trace("channel", "request", "%d (suggest)", p_m_b_channel);
add_trace("channel", "reply", (channel>=0)?"%d":"(none)", channel);
/* if channel was accepted as given */
if (channel==-1 || p_m_b_channel==channel) {
add_trace("conclusion", NULL, "channel was accepted as given");
add_trace("connect", "channel", "%d", p_m_b_channel);
end_trace();
p_m_b_exclusive = 1; // we are done
bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_USE);
return(0);
}
/* if channel value is faulty */
if (channel <= 0) {
add_trace("conclusion", NULL, "illegal reply");
end_trace();
ret = -111; // protocol error
goto channelerror;
}
/* if channel was not accepted, try to get it */
ret = seize_bchannel(channel, 1); // exclusively
add_trace("channel", "available", ret<0?"no":"yes");
if (ret < 0) {
add_trace("conclusion", NULL, "replied channel not available");
end_trace();
goto channelerror;
}
add_trace("conclusion", NULL, "replied channel accepted");
add_trace("connect", "channel", "%d", p_m_b_channel);
end_trace();
/* activate channel given by remote */
bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_USE);
} else
if (p_m_b_reserve) {
/*** we sent 'any channel acceptable' ***/
/* if not first reply, we are done */
if (p_state != PORT_STATE_OUT_SETUP)
return(0);
chan_trace_header(p_m_mISDNport, this, "CHANNEL SELECTION (first reply to setup)", DIRECTION_NONE);
add_trace("channel", "request", "any");
add_trace("channel", "reply", (channel>=0)?"%d":"(none)", channel);
/* if no channel was replied */
if (channel <= 0) {
add_trace("conclusion", NULL, "no channel, protocol error");
end_trace();
ret = -111; // protocol error
goto channelerror;
}
/* we will see, if our received channel is available */
ret = seize_bchannel(channel, 1); // exclusively
add_trace("channel", "available", ret<0?"no":"yes");
if (ret < 0) {
add_trace("conclusion", NULL, "replied channel not available");
end_trace();
goto channelerror;
}
add_trace("conclusion", NULL, "replied channel accepted");
add_trace("connect", "channel", "%d", p_m_b_channel);
end_trace();
/* activate channel given by remote */
bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_USE);
} else {
/*** we sent 'no channel available' ***/
/* if not the first reply, but a connect, we are forced */
if (cmd==MT_CONNECT && p_state!=PORT_STATE_OUT_SETUP) {
chan_trace_header(p_m_mISDNport, this, "CHANNEL SELECTION (connect)", DIRECTION_NONE);
add_trace("channel", "request", "no-channel");
add_trace("channel", "reply", (channel>=0)?"%d%s":"(none)", channel, exclusive?" (forced)":"");
if (channel > 0) {
goto use_from_connect;
}
ret = seize_bchannel(CHANNEL_ANY, 0); // any channel
add_trace("channel", "available", ret<0?"no":"yes");
if (ret < 0) {
add_trace("conclusion", NULL, "no channel available during call-waiting");
end_trace();
goto channelerror;
}
add_trace("conclusion", NULL, "using channel %d", p_m_b_channel);
add_trace("connect", "channel", "%d", p_m_b_channel);
end_trace();
p_m_b_exclusive = 1; // we are done
/* activate channel given by remote */
bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_USE);
return(0);
}
/* if not first reply, we are done */
if (p_state != PORT_STATE_OUT_SETUP)
return(0);
chan_trace_header(p_m_mISDNport, this, "CHANNEL SELECTION (first reply to setup)", DIRECTION_NONE);
add_trace("channel", "request", "no-channel");
add_trace("channel", "reply", (channel>=0)?"%d":"(none)", channel);
/* if first reply has no channel, we are done */
if (channel <= 0) {
add_trace("conclusion", NULL, "no channel until connect");
end_trace();
return(0);
}
/* we will see, if our received channel is available */
use_from_connect:
ret = seize_bchannel(channel, exclusive);
add_trace("channel", "available", ret<0?"no":"yes");
if (ret < 0) {
add_trace("conclusion", NULL, "replied channel not available");
end_trace();
goto channelerror;
}
add_trace("conclusion", NULL, "replied channel accepted");
add_trace("connect", "channel", "%d", p_m_b_channel);
end_trace();
p_m_b_exclusive = 1; // we are done
/* activate channel given by remote */
bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_USE);
}
return(0);
channelerror:
/*
* NOTE: we send MT_RELEASE_COMPLETE to "REJECT" the channel
* in response to the setup reply
*/
l3m = create_l3msg();
l1l2l3_trace_header(p_m_mISDNport, this, L3_RELEASE_COMPLETE_REQ, DIRECTION_OUT);
enc_ie_cause(l3m, (p_m_mISDNport->locally)?LOCATION_PRIVATE_LOCAL:LOCATION_PRIVATE_REMOTE, -ret);
end_trace();
p_m_mISDNport->ml3->to_layer3(p_m_mISDNport->ml3, MT_RELEASE_COMPLETE, p_m_d_l3id, l3m);
new_state(PORT_STATE_RELEASE);
trigger_work(&p_m_d_delete);
return(-34); /* to epoint: no channel available */
}
/*
* hunt bchannel for incoming setup or retrieve or resume
*/
int Pdss1::hunt_bchannel(int channel, int exclusive)
{
struct select_channel *selchannel;
struct interface_port *ifport = p_m_mISDNport->ifport;
int i;
chan_trace_header(p_m_mISDNport, this, "CHANNEL SELECTION (setup)", DIRECTION_NONE);
if (exclusive<0)
exclusive = 0;
if (channel == CHANNEL_NO)
add_trace("channel", "request", "no-channel");
else
add_trace("channel", "request", (channel>0)?"%d%s":"any", channel, exclusive?" (forced)":"");
if (channel==CHANNEL_NO && p_type==PORT_TYPE_DSS1_TE_IN) {
add_trace("conclusion", NULL, "incoming call-waiting not supported for TE-mode");
end_trace();
return(-6); // channel unacceptable
}
if (channel <= 0) /* not given, no channel, whatever.. */
channel = CHANNEL_ANY; /* any channel */
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
}
if (channel == CHANNEL_ANY)
goto get_from_list;
if (channel > 0) {
/* check for given channel in selection list */
selchannel = ifport->in_channel;
while(selchannel) {
if (selchannel->channel == channel || selchannel->channel == CHANNEL_FREE)
break;
selchannel = selchannel->next;
}
if (!selchannel)
channel = 0;
/* exclusive channel requests must be in the list */
if (exclusive) {
/* no exclusive channel */
if (!channel) {
add_trace("conclusion", NULL, "exclusively requested channel not in list");
end_trace();
return(-6); // channel unacceptable
}
/* get index for channel */
i = channel-1-(channel>=17);
if (i < 0 || i >= p_m_mISDNport->b_num || channel == 16) {
add_trace("conclusion", NULL, "exclusively requested channel outside interface range");
end_trace();
return(-6); // channel unacceptable
}
/* check if busy */
if (p_m_mISDNport->b_port[i] == NULL)
goto use_channel;
add_trace("conclusion", NULL, "exclusively requested channel is busy");
end_trace();
return(-6); // channel unacceptable
}
/* requested channels in list will be used */
if (channel) {
/* get index for channel */
i = channel-1-(channel>=17);
if (i < 0 || i >= p_m_mISDNport->b_num || channel == 16) {
add_trace("info", NULL, "requested channel %d outside interface range", channel);
} else /* if inside range (else) check if available */
if (p_m_mISDNport->b_port[i] == NULL)
goto use_channel;
}
/* if channel is not available or not in list, it must be searched */
get_from_list:
/* check for first free channel in list */
channel = 0;
selchannel = ifport->in_channel;
while(selchannel) {
switch(selchannel->channel) {
case CHANNEL_FREE: /* free channel */
add_trace("hunting", "channel", "free");
if (p_m_mISDNport->b_reserved >= p_m_mISDNport->b_num)
break; /* all channel in use or reserverd */
/* find channel */
i = 0;
while(i < p_m_mISDNport->b_num) {
if (p_m_mISDNport->b_port[i] == NULL) {
channel = i+1+(i>=15);
break;
}
i++;
}
break;
default:
add_trace("hunting", "channel", "%d", selchannel->channel);
if (selchannel->channel<1 || selchannel->channel==16)
break; /* invalid channels */
i = selchannel->channel-1-(selchannel->channel>=17);
if (i >= p_m_mISDNport->b_num)
break; /* channel not in port */
if (p_m_mISDNport->b_port[i] == NULL) {
channel = selchannel->channel;
break;
}
break;
}
if (channel)
break; /* found channel */
selchannel = selchannel->next;
}
if (!channel) {
add_trace("conclusion", NULL, "no channel available");
end_trace();
return(-6); // channel unacceptable
}
}
use_channel:
add_trace("conclusion", NULL, "channel available");
add_trace("connect", "channel", "%d", channel);
end_trace();
return(channel);
}
/*
* handles all indications
*/
/* CC_SETUP INDICATION */
void Pdss1::setup_ind(unsigned int cmd, unsigned int pid, struct l3_msg *l3m)
{
int calling_type, calling_plan, calling_present, calling_screen;
int calling_type2, calling_plan2, calling_present2, calling_screen2;
int called_type, called_plan;
int redir_type, redir_plan, redir_present, redir_screen, redir_reason;
int hlc_coding, hlc_presentation, hlc_interpretation, hlc_hlc, hlc_exthlc;
int bearer_coding, bearer_capability, bearer_mode, bearer_rate, bearer_multi, bearer_user;
int exclusive, channel;
int ret;
unsigned char keypad[33] = "";
unsigned char useruser[128];
int useruser_len = 0, useruser_protocol;
class Endpoint *epoint;
struct lcr_msg *message;
/* process given callref */
l1l2l3_trace_header(p_m_mISDNport, this, L3_NEW_L3ID_IND, DIRECTION_IN);
add_trace("callref", "new", "0x%x", pid);
if (p_m_d_l3id) {
/* release in case the ID is already in use */
add_trace("error", NULL, "callref already in use");
end_trace();
l3m = create_l3msg();
l1l2l3_trace_header(p_m_mISDNport, this, L3_RELEASE_COMPLETE_REQ, DIRECTION_OUT);
enc_ie_cause(l3m, (p_m_mISDNport->locally)?LOCATION_PRIVATE_LOCAL:LOCATION_PRIVATE_REMOTE, 47);
add_trace("reason", NULL, "callref already in use");
end_trace();
p_m_mISDNport->ml3->to_layer3(p_m_mISDNport->ml3, MT_RELEASE_COMPLETE, pid, l3m);
new_state(PORT_STATE_RELEASE);
trigger_work(&p_m_d_delete);
return;
}
p_m_d_l3id = pid;
p_m_d_ces = pid >> 16;
end_trace();
l1l2l3_trace_header(p_m_mISDNport, this, L3_SETUP_IND, DIRECTION_IN);
dec_ie_calling_pn(l3m, &calling_type, &calling_plan, &calling_present, &calling_screen, (unsigned char *)p_callerinfo.id, sizeof(p_callerinfo.id), &calling_type2, &calling_plan2, &calling_present2, &calling_screen2, (unsigned char *)p_callerinfo.id2, sizeof(p_callerinfo.id2));
dec_ie_called_pn(l3m, &called_type, &called_plan, (unsigned char *)p_dialinginfo.id, sizeof(p_dialinginfo.id));
dec_ie_keypad(l3m, (unsigned char *)keypad, sizeof(keypad));
/* te-mode: CNIP (calling name identification presentation) */
dec_facility_centrex(l3m, (unsigned char *)p_callerinfo.name, sizeof(p_callerinfo.name));
dec_ie_useruser(l3m, &useruser_protocol, useruser, &useruser_len);
dec_ie_complete(l3m, &p_dialinginfo.sending_complete);
dec_ie_redir_nr(l3m, &redir_type, &redir_plan, &redir_present, &redir_screen, &redir_reason, (unsigned char *)p_redirinfo.id, sizeof(p_redirinfo.id));
dec_ie_channel_id(l3m, &exclusive, &channel);
dec_ie_hlc(l3m, &hlc_coding, &hlc_interpretation, &hlc_presentation, &hlc_hlc, &hlc_exthlc);
dec_ie_bearer(l3m, &bearer_coding, &bearer_capability, &bearer_mode, &bearer_rate, &bearer_multi, &bearer_user);
dec_ie_display(l3m, (unsigned char *)p_dialinginfo.display, sizeof(p_dialinginfo.display));
end_trace();
/* if blocked, release call with MT_RELEASE_COMPLETE */
if (p_m_mISDNport->ifport->block) {
l3m = create_l3msg();
l1l2l3_trace_header(p_m_mISDNport, this, L3_RELEASE_COMPLETE_REQ, DIRECTION_OUT);
enc_ie_cause(l3m, (p_m_mISDNport->locally)?LOCATION_PRIVATE_LOCAL:LOCATION_PRIVATE_REMOTE, 27); /* temporary unavailable */
add_trace("reason", NULL, "port blocked");
end_trace();
p_m_mISDNport->ml3->to_layer3(p_m_mISDNport->ml3, MT_RELEASE_COMPLETE, p_m_d_l3id, l3m);
new_state(PORT_STATE_RELEASE);
trigger_work(&p_m_d_delete);
return;
}
/* caller info */
switch (calling_present) {
case 1:
p_callerinfo.present = INFO_PRESENT_RESTRICTED;
break;
case 2:
p_callerinfo.present = INFO_PRESENT_NOTAVAIL;
break;
default:
p_callerinfo.present = INFO_PRESENT_ALLOWED;
break;
}
switch (calling_screen) {
case 0:
p_callerinfo.screen = INFO_SCREEN_USER;
break;
case 1:
p_callerinfo.screen = INFO_SCREEN_USER_VERIFIED_PASSED;
break;
case 2:
p_callerinfo.screen = INFO_SCREEN_USER_VERIFIED_FAILED;
break;
default:
p_callerinfo.screen = INFO_SCREEN_NETWORK;
break;
}
switch (calling_type) {
case -1:
p_callerinfo.ntype = INFO_NTYPE_NOTPRESENT;
break;
case 0x0:
p_callerinfo.ntype = INFO_NTYPE_UNKNOWN;
break;
case 0x1:
p_callerinfo.ntype = INFO_NTYPE_INTERNATIONAL;
break;
case 0x2:
p_callerinfo.ntype = INFO_NTYPE_NATIONAL;
break;
case 0x4:
p_callerinfo.ntype = INFO_NTYPE_SUBSCRIBER;
break;
default:
p_callerinfo.ntype = INFO_NTYPE_UNKNOWN;
break;
}
p_callerinfo.isdn_port = p_m_portnum;
SCPY(p_callerinfo.interface, p_m_mISDNport->ifport->interface->name);
/* caller info2 */
switch (calling_present2) {
case 1:
p_callerinfo.present2 = INFO_PRESENT_RESTRICTED;
break;
case 2:
p_callerinfo.present2 = INFO_PRESENT_NOTAVAIL;
break;
default:
p_callerinfo.present2 = INFO_PRESENT_ALLOWED;
break;
}
switch (calling_screen2) {
case 0:
p_callerinfo.screen2 = INFO_SCREEN_USER;
break;
case 1:
p_callerinfo.screen2 = INFO_SCREEN_USER_VERIFIED_PASSED;
break;
case 2:
p_callerinfo.screen2 = INFO_SCREEN_USER_VERIFIED_FAILED;
break;
default:
p_callerinfo.screen2 = INFO_SCREEN_NETWORK;
break;
}
switch (calling_type2) {
case -1:
p_callerinfo.ntype2 = INFO_NTYPE_NOTPRESENT;
break;
case 0x0:
p_callerinfo.ntype2 = INFO_NTYPE_UNKNOWN;
break;
case 0x1:
p_callerinfo.ntype2 = INFO_NTYPE_INTERNATIONAL;
break;
case 0x2:
p_callerinfo.ntype2 = INFO_NTYPE_NATIONAL;
break;
case 0x4:
p_callerinfo.ntype2 = INFO_NTYPE_SUBSCRIBER;
break;
default:
p_callerinfo.ntype2 = INFO_NTYPE_UNKNOWN;
break;
}
/* dialing information */
SCAT(p_dialinginfo.id, (char *)keypad);
switch (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;
break;
default:
p_dialinginfo.ntype = INFO_NTYPE_UNKNOWN;
break;
}
/* redir info */
switch (redir_present) {
case 1:
p_redirinfo.present = INFO_PRESENT_RESTRICTED;
break;
case 2:
p_redirinfo.present = INFO_PRESENT_NOTAVAIL;
break;
default:
p_redirinfo.present = INFO_PRESENT_ALLOWED;
break;
}
switch (redir_screen) {
case 0:
p_redirinfo.screen = INFO_SCREEN_USER;
break;
case 1:
p_redirinfo.screen = INFO_SCREEN_USER_VERIFIED_PASSED;
break;
case 2:
p_redirinfo.screen = INFO_SCREEN_USER_VERIFIED_FAILED;
break;
default:
p_redirinfo.screen = INFO_SCREEN_NETWORK;
break;
}
switch (redir_reason) {
case 1:
p_redirinfo.reason = INFO_REDIR_BUSY;
break;
case 2:
p_redirinfo.reason = INFO_REDIR_NORESPONSE;
break;
case 15:
p_redirinfo.reason = INFO_REDIR_UNCONDITIONAL;
break;
case 10:
p_redirinfo.reason = INFO_REDIR_CALLDEFLECT;
break;
case 9:
p_redirinfo.reason = INFO_REDIR_OUTOFORDER;
break;
default:
p_redirinfo.reason = INFO_REDIR_UNKNOWN;
break;
}
switch (redir_type) {
case -1:
p_redirinfo.ntype = INFO_NTYPE_NOTPRESENT;
break;
case 0x0:
p_redirinfo.ntype = INFO_NTYPE_UNKNOWN;
break;
case 0x1:
p_redirinfo.ntype = INFO_NTYPE_INTERNATIONAL;
break;
case 0x2:
p_redirinfo.ntype = INFO_NTYPE_NATIONAL;
break;
case 0x4:
p_redirinfo.ntype = INFO_NTYPE_SUBSCRIBER;
break;
default:
p_redirinfo.ntype = INFO_NTYPE_UNKNOWN;
break;
}
p_redirinfo.isdn_port = p_m_portnum;
/* bearer capability */
switch (bearer_capability) {
case -1:
p_capainfo.bearer_capa = INFO_BC_AUDIO;
bearer_user = (options.law=='a')?3:2;
break;
default:
p_capainfo.bearer_capa = bearer_capability;
break;
}
switch (bearer_mode) {
case 2:
p_capainfo.bearer_mode = INFO_BMODE_PACKET;
break;
default:
p_capainfo.bearer_mode = INFO_BMODE_CIRCUIT;
break;
}
switch (bearer_user) {
case -1:
p_capainfo.bearer_info1 = INFO_INFO1_NONE;
break;
default:
p_capainfo.bearer_info1 = bearer_user + 0x80;
break;
}
/* hlc */
switch (hlc_hlc) {
case -1:
p_capainfo.hlc = INFO_HLC_NONE;
break;
default:
p_capainfo.hlc = hlc_hlc + 0x80;
break;
}
switch (hlc_exthlc) {
case -1:
p_capainfo.exthlc = INFO_HLC_NONE;
break;
default:
p_capainfo.exthlc = hlc_exthlc + 0x80;
break;
}
/* set bchannel mode */
if (p_capainfo.bearer_capa==INFO_BC_DATAUNRESTRICTED
|| p_capainfo.bearer_capa==INFO_BC_DATARESTRICTED
|| p_capainfo.bearer_capa==INFO_BC_VIDEO)
p_capainfo.source_mode = B_MODE_HDLC;
else
p_capainfo.source_mode = B_MODE_TRANSPARENT;
p_m_b_mode = p_capainfo.source_mode;
/* hunt channel */
ret = channel = hunt_bchannel(channel, exclusive);
if (ret < 0)
goto no_channel;
/* open channel */
ret = seize_bchannel(channel, 1);
if (ret < 0) {
no_channel:
/*
* NOTE: we send MT_RELEASE_COMPLETE to "REJECT" the channel
* in response to the setup
*/
l3m = create_l3msg();
l1l2l3_trace_header(p_m_mISDNport, this, L3_RELEASE_COMPLETE_REQ, DIRECTION_OUT);
enc_ie_cause(l3m, (p_m_mISDNport->locally)?LOCATION_PRIVATE_LOCAL:LOCATION_PRIVATE_REMOTE, -ret);
end_trace();
p_m_mISDNport->ml3->to_layer3(p_m_mISDNport->ml3, MT_RELEASE_COMPLETE, p_m_d_l3id, l3m);
new_state(PORT_STATE_RELEASE);
trigger_work(&p_m_d_delete);
return;
}
bchannel_event(p_m_mISDNport, p_m_b_index, B_EVENT_USE);
/* 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");
epoint->ep_app = new_endpointapp(epoint, 0, p_m_mISDNport->ifport->interface->app); //incoming
epointlist_new(epoint->ep_serial);
/* 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 = !p_m_mISDNport->ifport->nodtmf;
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.redirinfo, &p_redirinfo, sizeof(struct redir_info));
memcpy(&message->param.setup.capainfo, &p_capainfo, sizeof(struct capa_info));
memcpy(message->param.setup.useruser.data, &useruser, useruser_len);
message->param.setup.useruser.len = useruser_len;
message->param.setup.useruser.protocol = useruser_protocol;
message_put(message);
new_state(PORT_STATE_IN_SETUP);
}
/* CC_INFORMATION INDICATION */
void Pdss1::information_ind(unsigned int cmd, unsigned int pid, struct l3_msg *l3m)
{
int type, plan;
unsigned char keypad[33] = "", display[128] = "";
struct lcr_msg *message;
l1l2l3_trace_header(p_m_mISDNport, this, L3_INFORMATION_IND, DIRECTION_IN);
dec_ie_called_pn(l3m, &type, &plan, (unsigned char *)p_dialinginfo.id, sizeof(p_dialinginfo.id));
dec_ie_keypad(l3m, (unsigned char *)keypad, sizeof(keypad));
dec_ie_display(l3m, (unsigned char *)display, sizeof(display));
dec_ie_complete(l3m, &p_dialinginfo.sending_complete);
end_trace();
SCAT(p_dialinginfo.id, (char *)keypad);
switch (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;
break;
default:
p_dialinginfo.ntype = INFO_NTYPE_UNKNOWN;
break;
}
SCPY(p_dialinginfo.display, (char *)display);
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);
/* reset overlap timeout */
new_state(p_state);
}
/* CC_SETUP_ACCNOWLEDGE INDICATION */
void Pdss1::setup_acknowledge_ind(unsigned int cmd, unsigned int pid, struct l3_msg *l3m)
{
int exclusive, channel;
int coding, location, progress;
int ret;
struct lcr_msg *message;
int max = p_m_mISDNport->ifport->dialmax;
char *number;
l3_msg *nl3m;
l1l2l3_trace_header(p_m_mISDNport, this, L3_SETUP_ACKNOWLEDGE_IND, DIRECTION_IN);
dec_ie_channel_id(l3m, &exclusive, &channel);
dec_ie_progress(l3m, &coding, &location, &progress);
end_trace();
if (progress >= 0) {
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROGRESS);
message->param.progressinfo.progress = progress;
message->param.progressinfo.location = location;
message_put(message);
}
/* process channel */
ret = received_first_reply_to_setup(cmd, channel, exclusive);
if (ret < 0) {
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_RELEASE);
message->param.disconnectinfo.cause = -ret;
message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
message_put(message);
new_state(PORT_STATE_RELEASE);
trigger_work(&p_m_d_delete);
return;
}
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_OVERLAP);
message_put(message);
new_state(PORT_STATE_OUT_OVERLAP);
number = p_m_d_queue;
while (number[0]) { /* as long we have something to dial */
if (max > (int)strlen(number) || max == 0)
max = (int)strlen(number);
nl3m = create_l3msg();
l1l2l3_trace_header(p_m_mISDNport, this, L3_INFORMATION_REQ, DIRECTION_OUT);
enc_ie_called_pn(nl3m, 0, 1, (unsigned char *)number, max);
end_trace();
p_m_mISDNport->ml3->to_layer3(p_m_mISDNport->ml3, MT_INFORMATION, p_m_d_l3id, nl3m);
number += max;
}
p_m_d_queue[0] = '\0';
}
/* CC_PROCEEDING INDICATION */
void Pdss1::proceeding_ind(unsigned int cmd, unsigned int pid, struct l3_msg *l3m)
{
int exclusive, channel;
int coding, location, progress;
int ret;
struct lcr_msg *message;
int notify = -1, type, plan, present;
char redir[32];
l1l2l3_trace_header(p_m_mISDNport, this, L3_PROCEEDING_IND, DIRECTION_IN);
dec_ie_channel_id(l3m, &exclusive, &channel);
dec_ie_progress(l3m, &coding, &location, &progress);
dec_ie_notify(l3m, ¬ify);
dec_ie_redir_dn(l3m, &type, &plan, &present, (unsigned char *)redir, sizeof(redir));
end_trace();
if (progress >= 0) {
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROGRESS);
message->param.progressinfo.progress = progress;
message->param.progressinfo.location = location;
message_put(message);
}
ret = received_first_reply_to_setup(cmd, channel, exclusive);
if (ret < 0) {
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_RELEASE);
message->param.disconnectinfo.cause = -ret;
message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
message_put(message);
new_state(PORT_STATE_RELEASE);
trigger_work(&p_m_d_delete);
return;
}
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROCEEDING);
message_put(message);
new_state(PORT_STATE_OUT_PROCEEDING);
if (notify >= 0)
notify |= 0x80;
else
notify = 0;
if (type >= 0 || notify) {
if (!notify && type >= 0)
notify = 251;
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_NOTIFY);
message->param.notifyinfo.notify = notify;
SCPY(message->param.notifyinfo.id, redir);
/* redirection number */
switch (present) {
case 1:
message->param.notifyinfo.present = INFO_PRESENT_RESTRICTED;
break;
case 2:
message->param.notifyinfo.present = INFO_PRESENT_NOTAVAIL;
break;
default:
message->param.notifyinfo.present = INFO_PRESENT_ALLOWED;
break;
}
switch (type) {
case -1:
message->param.notifyinfo.ntype = INFO_NTYPE_NOTPRESENT;
break;
case 1:
message->param.notifyinfo.ntype = INFO_NTYPE_INTERNATIONAL;
break;
case 2:
message->param.notifyinfo.ntype = INFO_NTYPE_NATIONAL;
break;
case 4:
message->param.notifyinfo.ntype = INFO_NTYPE_SUBSCRIBER;
break;
default:
message->param.notifyinfo.ntype = INFO_NTYPE_UNKNOWN;
break;
}
message->param.notifyinfo.isdn_port = p_m_portnum;
message_put(message);
}
}
/* CC_ALERTING INDICATION */
void Pdss1::alerting_ind(unsigned int cmd, unsigned int pid, struct l3_msg *l3m)
{
int exclusive, channel;
int coding, location, progress;
int ret;
struct lcr_msg *message;
int notify = -1, type, plan, present;
char redir[32];
l1l2l3_trace_header(p_m_mISDNport, this, L3_ALERTING_IND, DIRECTION_IN);
dec_ie_channel_id(l3m, &exclusive, &channel);
dec_ie_progress(l3m, &coding, &location, &progress);
dec_ie_notify(l3m, ¬ify);
dec_ie_redir_dn(l3m, &type, &plan, &present, (unsigned char *)redir, sizeof(redir));
end_trace();
if (progress >= 0) {
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROGRESS);
message->param.progressinfo.progress = progress;
message->param.progressinfo.location = location;
message_put(message);
}
/* process channel */
ret = received_first_reply_to_setup(cmd, channel, exclusive);
if (ret < 0) {
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_RELEASE);
message->param.disconnectinfo.cause = -ret;
message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
message_put(message);
new_state(PORT_STATE_RELEASE);
trigger_work(&p_m_d_delete);
return;
}
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_ALERTING);
message_put(message);
new_state(PORT_STATE_OUT_ALERTING);
if (notify >= 0)
notify |= 0x80;
else
notify = 0;
if (type >= 0 || notify) {
if (!notify && type >= 0)
notify = 251;
message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_NOTIFY);
message->param.notifyinfo.notify = notify;
SCPY(message->param.notifyinfo.id, redir);
switch (present) {
case 1:
message->param.notifyinfo.present = INFO_PRESENT_RESTRICTED;
break;
case 2:
message->param.notifyinfo.present = INFO_PRESENT_NOTAVAIL;
break;
default:
message->param.notifyinfo.present = INFO_PRESENT_ALLOWED;
break;
}
switch (type) {
case -1:
message->param.notifyinfo.ntype = INFO_NTYPE_NOTPRESENT;
break;
case 1:
message->param.notifyinfo.ntype = INFO_NTYPE_INTERNATIONAL;
break;
case 2:
message->param.notifyinfo.ntype = INFO_NTYPE_NATIONAL;
break;
case 4:
message->param.notifyinfo.ntype = INFO_NTYPE_SUBSCRIBER;