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asterisk/channels/misdn/isdn_msg_parser.c
Alexander Traud 858c9e1d80 chan_misdn: Fix for Doxygen. 
ASTERISK-29764

Change-Id: I6e5466cce03e25695c5c7d8b68c305184dcf5375
2021-11-29 09:04:26 -06:00

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/*
* Chan_Misdn -- Channel Driver for Asterisk
*
* Interface to mISDN
*
* Copyright (C) 2004, Christian Richter
*
* Christian Richter <crich@beronet.com>
*
* This program is free software, distributed under the terms of
* the GNU General Public License
*/
/*! \file
* \brief Interface to mISDN - message parser
* \author Christian Richter <crich@beronet.com>
*/
/*** MODULEINFO
<support_level>extended</support_level>
***/
#include "isdn_lib_intern.h"
#include "isdn_lib.h"
#include "ie.c"
/*!
* \internal
* \brief Build the name, number, name/number display message string
*
* \param display Display buffer to fill in
* \param display_length Length of the display buffer to fill in
* \param display_format Display format enumeration
* \param name Name string to use
* \param number Number string to use
*/
static void build_display_str(char *display, size_t display_length, int display_format, const char *name, const char *number)
{
display[0] = 0;
switch (display_format) {
default:
case 0: /* none */
break;
case 1: /* name */
snprintf(display, display_length, "%s", name);
break;
case 2: /* number */
snprintf(display, display_length, "%s", number);
break;
case 3: /* both */
if (name[0] || number[0]) {
snprintf(display, display_length, "\"%s\" <%s>", name, number);
}
break;
}
}
/*!
* \internal
* \brief Encode the Facility IE and put it into the message structure.
*
* \param ntmode Where the encoded facility was put when in NT mode.
* \param msg General message structure
* \param fac Data to encode into the facility ie.
* \param nt TRUE if in NT mode.
*/
static void enc_ie_facility(unsigned char **ntmode, msg_t *msg, struct FacParm *fac, int nt)
{
int len;
Q931_info_t *qi;
unsigned char *p;
unsigned char buf[256];
len = encodeFac(buf, fac);
if (len <= 0) {
/*
* mISDN does not know how to build the requested facility structure
* Clear facility information
*/
fac->Function = Fac_None;
return;
}
p = msg_put(msg, len);
if (nt) {
*ntmode = p + 1;
} else {
qi = (Q931_info_t *) (msg->data + mISDN_HEADER_LEN);
qi->QI_ELEMENT(facility) = p - (unsigned char *) qi - sizeof(Q931_info_t);
}
memcpy(p, buf, len);
/* Clear facility information */
fac->Function = Fac_None;
}
/*!
* \internal
* \brief Decode the Facility IE.
*
* \param p Encoded facility ie data to decode. (NT mode)
* \param qi Encoded facility ie data to decode. (TE mode)
* \param fac Where to put the decoded facility ie data if it is available.
* \param nt TRUE if in NT mode.
* \param bc Associated B channel
*/
static void dec_ie_facility(unsigned char *p, Q931_info_t *qi, struct FacParm *fac, int nt, struct misdn_bchannel *bc)
{
fac->Function = Fac_None;
if (!nt) {
p = NULL;
if (qi->QI_ELEMENT(facility)) {
p = (unsigned char *) qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(facility) + 1;
}
}
if (!p) {
return;
}
if (decodeFac(p, fac)) {
cb_log(3, bc->port, "Decoding facility ie failed! Unrecognized facility message?\n");
}
}
static void set_channel(struct misdn_bchannel *bc, int channel)
{
cb_log(3,bc->port,"set_channel: bc->channel:%d channel:%d\n", bc->channel, channel);
if (channel==0xff) {
/* any channel */
channel=-1;
}
/* ALERT: is that everytime true ? */
if (channel > 0 && bc->nt ) {
if (bc->channel && ( bc->channel != 0xff) ) {
cb_log(0,bc->port,"We already have a channel (%d)\n", bc->channel);
} else {
bc->channel = channel;
cb_event(EVENT_NEW_CHANNEL,bc,NULL);
}
}
if (channel > 0 && !bc->nt ) {
bc->channel = channel;
cb_event(EVENT_NEW_CHANNEL,bc,NULL);
}
}
static void parse_proceeding (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
CALL_PROCEEDING_t *proceeding = (CALL_PROCEEDING_t *) (msg->data + HEADER_LEN);
//struct misdn_stack *stack=get_stack_by_bc(bc);
{
int exclusive, channel;
dec_ie_channel_id(proceeding->CHANNEL_ID, (Q931_info_t *)proceeding, &exclusive, &channel, nt,bc);
set_channel(bc,channel);
}
dec_ie_progress(proceeding->PROGRESS, (Q931_info_t *)proceeding, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
dec_ie_facility(proceeding->FACILITY, (Q931_info_t *) proceeding, &bc->fac_in, nt, bc);
/* dec_ie_redir_dn */
#ifdef DEBUG
printf("Parsing PROCEEDING Msg\n");
#endif
}
static msg_t *build_proceeding (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
CALL_PROCEEDING_t *proceeding;
msg_t *msg =(msg_t*)create_l3msg(CC_PROCEEDING | REQUEST, MT_CALL_PROCEEDING, bc?bc->l3_id:-1, sizeof(CALL_PROCEEDING_t) ,nt);
proceeding=(CALL_PROCEEDING_t*)((msg->data+HEADER_LEN));
enc_ie_channel_id(&proceeding->CHANNEL_ID, msg, 1,bc->channel, nt,bc);
if (nt)
enc_ie_progress(&proceeding->PROGRESS, msg, 0, nt?1:5, 8, nt,bc);
if (bc->fac_out.Function != Fac_None) {
enc_ie_facility(&proceeding->FACILITY, msg, &bc->fac_out, nt);
}
/* enc_ie_redir_dn */
#ifdef DEBUG
printf("Building PROCEEDING Msg\n");
#endif
return msg;
}
static void parse_alerting (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
ALERTING_t *alerting = (ALERTING_t *) (msg->data + HEADER_LEN);
//Q931_info_t *qi=(Q931_info_t*)(msg->data+HEADER_LEN);
dec_ie_facility(alerting->FACILITY, (Q931_info_t *) alerting, &bc->fac_in, nt, bc);
/* dec_ie_redir_dn */
dec_ie_progress(alerting->PROGRESS, (Q931_info_t *)alerting, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
#ifdef DEBUG
printf("Parsing ALERTING Msg\n");
#endif
}
static msg_t *build_alerting (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
ALERTING_t *alerting;
msg_t *msg =(msg_t*)create_l3msg(CC_ALERTING | REQUEST, MT_ALERTING, bc?bc->l3_id:-1, sizeof(ALERTING_t) ,nt);
alerting=(ALERTING_t*)((msg->data+HEADER_LEN));
enc_ie_channel_id(&alerting->CHANNEL_ID, msg, 1,bc->channel, nt,bc);
if (nt)
enc_ie_progress(&alerting->PROGRESS, msg, 0, nt?1:5, 8, nt,bc);
if (bc->fac_out.Function != Fac_None) {
enc_ie_facility(&alerting->FACILITY, msg, &bc->fac_out, nt);
}
/* enc_ie_redir_dn */
#ifdef DEBUG
printf("Building ALERTING Msg\n");
#endif
return msg;
}
static void parse_progress (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
PROGRESS_t *progress = (PROGRESS_t *) (msg->data + HEADER_LEN);
//Q931_info_t *qi=(Q931_info_t*)(msg->data+HEADER_LEN);
dec_ie_progress(progress->PROGRESS, (Q931_info_t *)progress, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
dec_ie_facility(progress->FACILITY, (Q931_info_t *) progress, &bc->fac_in, nt, bc);
#ifdef DEBUG
printf("Parsing PROGRESS Msg\n");
#endif
}
static msg_t *build_progress (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
PROGRESS_t *progress;
msg_t *msg =(msg_t*)create_l3msg(CC_PROGRESS | REQUEST, MT_PROGRESS, bc?bc->l3_id:-1, sizeof(PROGRESS_t) ,nt);
progress=(PROGRESS_t*)((msg->data+HEADER_LEN));
enc_ie_progress(&progress->PROGRESS, msg, 0, nt ? 1 : 5, 8, nt, bc);
if (bc->fac_out.Function != Fac_None) {
enc_ie_facility(&progress->FACILITY, msg, &bc->fac_out, nt);
}
#ifdef DEBUG
printf("Building PROGRESS Msg\n");
#endif
return msg;
}
#if defined(AST_MISDN_ENHANCEMENTS)
/*!
* \internal
* \brief Extract the SETUP message's BC, HLC, and LLC encoded ie contents.
*
* \param setup Indexed setup message contents
* \param nt TRUE if in NT mode.
* \param bc Associated B channel
*/
static void extract_setup_Bc_Hlc_Llc(SETUP_t *setup, int nt, struct misdn_bchannel *bc)
{
__u8 *p;
Q931_info_t *qi;
qi = (Q931_info_t *) setup;
/* Extract Bearer Capability */
if (nt) {
p = (__u8 *) setup->BEARER;
} else {
if (qi->QI_ELEMENT(bearer_capability)) {
p = (__u8 *) qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(bearer_capability) + 1;
} else {
p = NULL;
}
}
if (!p || *p == 0 || sizeof(bc->setup_bc_hlc_llc.Bc.Contents) < *p) {
bc->setup_bc_hlc_llc.Bc.Length = 0;
} else {
bc->setup_bc_hlc_llc.Bc.Length = *p;
memcpy(bc->setup_bc_hlc_llc.Bc.Contents, p + 1, *p);
}
/* Extract Low Layer Compatibility */
if (nt) {
p = (__u8 *) setup->LLC;
} else {
if (qi->QI_ELEMENT(llc)) {
p = (__u8 *) qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(llc) + 1;
} else {
p = NULL;
}
}
if (!p || *p == 0 || sizeof(bc->setup_bc_hlc_llc.Llc.Contents) < *p) {
bc->setup_bc_hlc_llc.Llc.Length = 0;
} else {
bc->setup_bc_hlc_llc.Llc.Length = *p;
memcpy(bc->setup_bc_hlc_llc.Llc.Contents, p + 1, *p);
}
/* Extract High Layer Compatibility */
if (nt) {
p = (__u8 *) setup->HLC;
} else {
if (qi->QI_ELEMENT(hlc)) {
p = (__u8 *) qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(hlc) + 1;
} else {
p = NULL;
}
}
if (!p || *p == 0 || sizeof(bc->setup_bc_hlc_llc.Hlc.Contents) < *p) {
bc->setup_bc_hlc_llc.Hlc.Length = 0;
} else {
bc->setup_bc_hlc_llc.Hlc.Length = *p;
memcpy(bc->setup_bc_hlc_llc.Hlc.Contents, p + 1, *p);
}
}
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
static void parse_setup (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
SETUP_t *setup = (SETUP_t *) (msg->data + HEADER_LEN);
Q931_info_t *qi = (Q931_info_t *) (msg->data + HEADER_LEN);
int type;
int plan;
int present;
int screen;
int reason;
#ifdef DEBUG
printf("Parsing SETUP Msg\n");
#endif
dec_ie_calling_pn(setup->CALLING_PN, qi, &type, &plan, &present, &screen, bc->caller.number, sizeof(bc->caller.number), nt, bc);
bc->caller.number_type = type;
bc->caller.number_plan = plan;
switch (present) {
default:
case 0:
bc->caller.presentation = 0; /* presentation allowed */
break;
case 1:
bc->caller.presentation = 1; /* presentation restricted */
break;
case 2:
bc->caller.presentation = 2; /* Number not available */
break;
}
if (0 <= screen) {
bc->caller.screening = screen;
} else {
bc->caller.screening = 0; /* Unscreened */
}
dec_ie_facility(setup->FACILITY, (Q931_info_t *) setup, &bc->fac_in, nt, bc);
dec_ie_called_pn(setup->CALLED_PN, (Q931_info_t *) setup, &type, &plan, bc->dialed.number, sizeof(bc->dialed.number), nt, bc);
bc->dialed.number_type = type;
bc->dialed.number_plan = plan;
dec_ie_keypad(setup->KEYPAD, (Q931_info_t *) setup, bc->keypad, sizeof(bc->keypad), nt, bc);
dec_ie_complete(setup->COMPLETE, (Q931_info_t *) setup, &bc->sending_complete, nt, bc);
dec_ie_redir_nr(setup->REDIR_NR, (Q931_info_t *) setup, &type, &plan, &present, &screen, &reason, bc->redirecting.from.number, sizeof(bc->redirecting.from.number), nt, bc);
bc->redirecting.from.number_type = type;
bc->redirecting.from.number_plan = plan;
switch (present) {
default:
case 0:
bc->redirecting.from.presentation = 0; /* presentation allowed */
break;
case 1:
bc->redirecting.from.presentation = 1; /* presentation restricted */
break;
case 2:
bc->redirecting.from.presentation = 2; /* Number not available */
break;
}
if (0 <= screen) {
bc->redirecting.from.screening = screen;
} else {
bc->redirecting.from.screening = 0; /* Unscreened */
}
if (0 <= reason) {
bc->redirecting.reason = reason;
} else {
bc->redirecting.reason = mISDN_REDIRECTING_REASON_UNKNOWN;
}
{
int coding, capability, mode, rate, multi, user, async, urate, stopbits, dbits, parity;
dec_ie_bearer(setup->BEARER, (Q931_info_t *)setup, &coding, &capability, &mode, &rate, &multi, &user, &async, &urate, &stopbits, &dbits, &parity, nt,bc);
switch (capability) {
case -1: bc->capability=INFO_CAPABILITY_DIGITAL_UNRESTRICTED;
break;
case 0: bc->capability=INFO_CAPABILITY_SPEECH;
break;
case 18: bc->capability=INFO_CAPABILITY_VIDEO;
break;
case 8: bc->capability=INFO_CAPABILITY_DIGITAL_UNRESTRICTED;
bc->user1 = user;
bc->urate = urate;
bc->rate = rate;
bc->mode = mode;
break;
case 9: bc->capability=INFO_CAPABILITY_DIGITAL_RESTRICTED;
break;
default:
break;
}
switch(user) {
case 2:
bc->law=INFO_CODEC_ULAW;
break;
case 3:
bc->law=INFO_CODEC_ALAW;
break;
default:
bc->law=INFO_CODEC_ALAW;
}
bc->capability=capability;
}
{
int exclusive, channel;
dec_ie_channel_id(setup->CHANNEL_ID, (Q931_info_t *)setup, &exclusive, &channel, nt,bc);
set_channel(bc,channel);
}
{
int protocol ;
dec_ie_useruser(setup->USER_USER, (Q931_info_t *)setup, &protocol, bc->uu, &bc->uulen, nt,bc);
if (bc->uulen) cb_log(1, bc->port, "USERUSERINFO:%s\n", bc->uu);
else
cb_log(1, bc->port, "NO USERUSERINFO\n");
}
dec_ie_progress(setup->PROGRESS, (Q931_info_t *)setup, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
#if defined(AST_MISDN_ENHANCEMENTS)
extract_setup_Bc_Hlc_Llc(setup, nt, bc);
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
}
#define ANY_CHANNEL 0xff /* IE attribute for 'any channel' */
static msg_t *build_setup (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
SETUP_t *setup;
msg_t *msg =(msg_t*)create_l3msg(CC_SETUP | REQUEST, MT_SETUP, bc?bc->l3_id:-1, sizeof(SETUP_t) ,nt);
int is_ptp;
enum FacFunction fac_type;
setup=(SETUP_t*)((msg->data+HEADER_LEN));
if (bc->channel == 0 || bc->channel == ANY_CHANNEL || bc->channel==-1)
enc_ie_channel_id(&setup->CHANNEL_ID, msg, 0, bc->channel, nt,bc);
else
enc_ie_channel_id(&setup->CHANNEL_ID, msg, 1, bc->channel, nt,bc);
fac_type = bc->fac_out.Function;
if (fac_type != Fac_None) {
enc_ie_facility(&setup->FACILITY, msg, &bc->fac_out, nt);
}
enc_ie_calling_pn(&setup->CALLING_PN, msg, bc->caller.number_type, bc->caller.number_plan,
bc->caller.presentation, bc->caller.screening, bc->caller.number, nt, bc);
if (bc->dialed.number[0]) {
enc_ie_called_pn(&setup->CALLED_PN, msg, bc->dialed.number_type, bc->dialed.number_plan, bc->dialed.number, nt, bc);
}
switch (bc->outgoing_colp) {
case 0:/* pass */
case 1:/* restricted */
is_ptp = misdn_lib_is_ptp(bc->port);
if (bc->redirecting.from.number[0]
&& ((!is_ptp && nt)
|| (is_ptp
#if defined(AST_MISDN_ENHANCEMENTS)
/*
* There is no need to send out this ie when we are also sending
* a Fac_DivertingLegInformation2 as well. The
* Fac_DivertingLegInformation2 supercedes the information in
* this ie.
*/
&& fac_type != Fac_DivertingLegInformation2
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
))) {
#if 1
/* ETSI and Q.952 do not define the screening field */
enc_ie_redir_nr(&setup->REDIR_NR, msg, bc->redirecting.from.number_type,
bc->redirecting.from.number_plan, bc->redirecting.from.presentation, 0,
bc->redirecting.reason, bc->redirecting.from.number, nt, bc);
#else
/* Q.931 defines the screening field */
enc_ie_redir_nr(&setup->REDIR_NR, msg, bc->redirecting.from.number_type,
bc->redirecting.from.number_plan, bc->redirecting.from.presentation,
bc->redirecting.from.screening, bc->redirecting.reason,
bc->redirecting.from.number, nt, bc);
#endif
}
break;
default:
break;
}
if (bc->keypad[0]) {
enc_ie_keypad(&setup->KEYPAD, msg, bc->keypad, nt,bc);
}
if (*bc->display) {
enc_ie_display(&setup->DISPLAY, msg, bc->display, nt, bc);
} else if (nt && bc->caller.presentation == 0) {
char display[sizeof(bc->display)];
/* Presentation is allowed */
build_display_str(display, sizeof(display), bc->display_setup, bc->caller.name, bc->caller.number);
if (display[0]) {
enc_ie_display(&setup->DISPLAY, msg, display, nt, bc);
}
}
{
int coding = 0;
int capability;
int mode = 0; /* 2 for packet! */
int user;
int rate = 0x10;
switch (bc->law) {
case INFO_CODEC_ULAW: user=2;
break;
case INFO_CODEC_ALAW: user=3;
break;
default:
user=3;
}
switch (bc->capability) {
case INFO_CAPABILITY_SPEECH: capability = 0;
break;
case INFO_CAPABILITY_DIGITAL_UNRESTRICTED: capability = 8;
user=-1;
mode=bc->mode;
rate=bc->rate;
break;
case INFO_CAPABILITY_DIGITAL_RESTRICTED: capability = 9;
user=-1;
break;
default:
capability=bc->capability;
}
enc_ie_bearer(&setup->BEARER, msg, coding, capability, mode, rate, -1, user, nt,bc);
}
if (bc->sending_complete) {
enc_ie_complete(&setup->COMPLETE,msg, bc->sending_complete, nt, bc);
}
if (bc->uulen) {
int protocol=4;
enc_ie_useruser(&setup->USER_USER, msg, protocol, bc->uu, bc->uulen, nt,bc);
cb_log(1, bc->port, "ENCODING USERUSERINFO:%s\n", bc->uu);
}
#if defined(AST_MISDN_ENHANCEMENTS)
extract_setup_Bc_Hlc_Llc(setup, nt, bc);
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
#ifdef DEBUG
printf("Building SETUP Msg\n");
#endif
return msg;
}
static void parse_connect (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
CONNECT_t *connect = (CONNECT_t *) (msg->data + HEADER_LEN);
int type;
int plan;
int pres;
int screen;
bc->ces = connect->ces;
dec_ie_progress(connect->PROGRESS, (Q931_info_t *)connect, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
dec_ie_connected_pn(connect->CONNECT_PN, (Q931_info_t *) connect, &type, &plan,
&pres, &screen, bc->connected.number, sizeof(bc->connected.number), nt, bc);
bc->connected.number_type = type;
bc->connected.number_plan = plan;
switch (pres) {
default:
case 0:
bc->connected.presentation = 0; /* presentation allowed */
break;
case 1:
bc->connected.presentation = 1; /* presentation restricted */
break;
case 2:
bc->connected.presentation = 2; /* Number not available */
break;
}
if (0 <= screen) {
bc->connected.screening = screen;
} else {
bc->connected.screening = 0; /* Unscreened */
}
dec_ie_facility(connect->FACILITY, (Q931_info_t *) connect, &bc->fac_in, nt, bc);
/*
cb_log(1,bc->port,"CONNETED PN: %s cpn_dialplan:%d\n", connected_pn, type);
*/
#ifdef DEBUG
printf("Parsing CONNECT Msg\n");
#endif
}
static msg_t *build_connect (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
CONNECT_t *connect;
msg_t *msg =(msg_t*)create_l3msg(CC_CONNECT | REQUEST, MT_CONNECT, bc?bc->l3_id:-1, sizeof(CONNECT_t) ,nt);
cb_log(6,bc->port,"BUILD_CONNECT: bc:%p bc->l3id:%d, nt:%d\n",bc,bc->l3_id,nt);
connect=(CONNECT_t*)((msg->data+HEADER_LEN));
if (nt) {
time_t now;
time(&now);
enc_ie_date(&connect->DATE, msg, now, nt,bc);
}
switch (bc->outgoing_colp) {
case 0:/* pass */
case 1:/* restricted */
enc_ie_connected_pn(&connect->CONNECT_PN, msg, bc->connected.number_type,
bc->connected.number_plan, bc->connected.presentation,
bc->connected.screening, bc->connected.number, nt, bc);
break;
default:
break;
}
if (nt && bc->connected.presentation == 0) {
char display[sizeof(bc->display)];
/* Presentation is allowed */
build_display_str(display, sizeof(display), bc->display_connected, bc->connected.name, bc->connected.number);
if (display[0]) {
enc_ie_display(&connect->DISPLAY, msg, display, nt, bc);
}
}
if (bc->fac_out.Function != Fac_None) {
enc_ie_facility(&connect->FACILITY, msg, &bc->fac_out, nt);
}
#ifdef DEBUG
printf("Building CONNECT Msg\n");
#endif
return msg;
}
static void parse_setup_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
SETUP_ACKNOWLEDGE_t *setup_acknowledge = (SETUP_ACKNOWLEDGE_t *) (msg->data + HEADER_LEN);
{
int exclusive, channel;
dec_ie_channel_id(setup_acknowledge->CHANNEL_ID, (Q931_info_t *)setup_acknowledge, &exclusive, &channel, nt,bc);
set_channel(bc, channel);
}
dec_ie_progress(setup_acknowledge->PROGRESS, (Q931_info_t *)setup_acknowledge, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
dec_ie_facility(setup_acknowledge->FACILITY, (Q931_info_t *) setup_acknowledge, &bc->fac_in, nt, bc);
#ifdef DEBUG
printf("Parsing SETUP_ACKNOWLEDGE Msg\n");
#endif
}
static msg_t *build_setup_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
SETUP_ACKNOWLEDGE_t *setup_acknowledge;
msg_t *msg =(msg_t*)create_l3msg(CC_SETUP_ACKNOWLEDGE | REQUEST, MT_SETUP_ACKNOWLEDGE, bc?bc->l3_id:-1, sizeof(SETUP_ACKNOWLEDGE_t) ,nt);
setup_acknowledge=(SETUP_ACKNOWLEDGE_t*)((msg->data+HEADER_LEN));
enc_ie_channel_id(&setup_acknowledge->CHANNEL_ID, msg, 1,bc->channel, nt,bc);
if (nt)
enc_ie_progress(&setup_acknowledge->PROGRESS, msg, 0, nt?1:5, 8, nt,bc);
if (bc->fac_out.Function != Fac_None) {
enc_ie_facility(&setup_acknowledge->FACILITY, msg, &bc->fac_out, nt);
}
#ifdef DEBUG
printf("Building SETUP_ACKNOWLEDGE Msg\n");
#endif
return msg;
}
static void parse_connect_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing CONNECT_ACKNOWLEDGE Msg\n");
#endif
}
static msg_t *build_connect_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
CONNECT_ACKNOWLEDGE_t *connect_acknowledge;
msg_t *msg =(msg_t*)create_l3msg(CC_CONNECT | RESPONSE, MT_CONNECT, bc?bc->l3_id:-1, sizeof(CONNECT_ACKNOWLEDGE_t) ,nt);
connect_acknowledge=(CONNECT_ACKNOWLEDGE_t*)((msg->data+HEADER_LEN));
enc_ie_channel_id(&connect_acknowledge->CHANNEL_ID, msg, 1, bc->channel, nt,bc);
#ifdef DEBUG
printf("Building CONNECT_ACKNOWLEDGE Msg\n");
#endif
return msg;
}
static void parse_user_information (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing USER_INFORMATION Msg\n");
#endif
}
static msg_t *build_user_information (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_USER_INFORMATION | REQUEST, MT_USER_INFORMATION, bc?bc->l3_id:-1, sizeof(USER_INFORMATION_t) ,nt);
#ifdef DEBUG
printf("Building USER_INFORMATION Msg\n");
#endif
return msg;
}
static void parse_suspend_reject (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing SUSPEND_REJECT Msg\n");
#endif
}
static msg_t *build_suspend_reject (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_SUSPEND_REJECT | REQUEST, MT_SUSPEND_REJECT, bc?bc->l3_id:-1, sizeof(SUSPEND_REJECT_t) ,nt);
#ifdef DEBUG
printf("Building SUSPEND_REJECT Msg\n");
#endif
return msg;
}
static void parse_resume_reject (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing RESUME_REJECT Msg\n");
#endif
}
static msg_t *build_resume_reject (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_RESUME_REJECT | REQUEST, MT_RESUME_REJECT, bc?bc->l3_id:-1, sizeof(RESUME_REJECT_t) ,nt);
#ifdef DEBUG
printf("Building RESUME_REJECT Msg\n");
#endif
return msg;
}
static void parse_hold (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing HOLD Msg\n");
#endif
}
static msg_t *build_hold (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_HOLD | REQUEST, MT_HOLD, bc?bc->l3_id:-1, sizeof(HOLD_t) ,nt);
#ifdef DEBUG
printf("Building HOLD Msg\n");
#endif
return msg;
}
static void parse_suspend (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing SUSPEND Msg\n");
#endif
}
static msg_t *build_suspend (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_SUSPEND | REQUEST, MT_SUSPEND, bc?bc->l3_id:-1, sizeof(SUSPEND_t) ,nt);
#ifdef DEBUG
printf("Building SUSPEND Msg\n");
#endif
return msg;
}
static void parse_resume (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing RESUME Msg\n");
#endif
}
static msg_t *build_resume (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_RESUME | REQUEST, MT_RESUME, bc?bc->l3_id:-1, sizeof(RESUME_t) ,nt);
#ifdef DEBUG
printf("Building RESUME Msg\n");
#endif
return msg;
}
static void parse_hold_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing HOLD_ACKNOWLEDGE Msg\n");
#endif
}
static msg_t *build_hold_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_HOLD_ACKNOWLEDGE | REQUEST, MT_HOLD_ACKNOWLEDGE, bc?bc->l3_id:-1, sizeof(HOLD_ACKNOWLEDGE_t) ,nt);
#ifdef DEBUG
printf("Building HOLD_ACKNOWLEDGE Msg\n");
#endif
return msg;
}
static void parse_suspend_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing SUSPEND_ACKNOWLEDGE Msg\n");
#endif
}
static msg_t *build_suspend_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_SUSPEND_ACKNOWLEDGE | REQUEST, MT_SUSPEND_ACKNOWLEDGE, bc?bc->l3_id:-1, sizeof(SUSPEND_ACKNOWLEDGE_t) ,nt);
#ifdef DEBUG
printf("Building SUSPEND_ACKNOWLEDGE Msg\n");
#endif
return msg;
}
static void parse_resume_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing RESUME_ACKNOWLEDGE Msg\n");
#endif
}
static msg_t *build_resume_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_RESUME_ACKNOWLEDGE | REQUEST, MT_RESUME_ACKNOWLEDGE, bc?bc->l3_id:-1, sizeof(RESUME_ACKNOWLEDGE_t) ,nt);
#ifdef DEBUG
printf("Building RESUME_ACKNOWLEDGE Msg\n");
#endif
return msg;
}
static void parse_hold_reject (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing HOLD_REJECT Msg\n");
#endif
}
static msg_t *build_hold_reject (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_HOLD_REJECT | REQUEST, MT_HOLD_REJECT, bc?bc->l3_id:-1, sizeof(HOLD_REJECT_t) ,nt);
#ifdef DEBUG
printf("Building HOLD_REJECT Msg\n");
#endif
return msg;
}
static void parse_retrieve (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing RETRIEVE Msg\n");
#endif
}
static msg_t *build_retrieve (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_RETRIEVE | REQUEST, MT_RETRIEVE, bc?bc->l3_id:-1, sizeof(RETRIEVE_t) ,nt);
#ifdef DEBUG
printf("Building RETRIEVE Msg\n");
#endif
return msg;
}
static void parse_retrieve_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing RETRIEVE_ACKNOWLEDGE Msg\n");
#endif
}
static msg_t *build_retrieve_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
RETRIEVE_ACKNOWLEDGE_t *retrieve_acknowledge;
msg_t *msg =(msg_t*)create_l3msg(CC_RETRIEVE_ACKNOWLEDGE | REQUEST, MT_RETRIEVE_ACKNOWLEDGE, bc?bc->l3_id:-1, sizeof(RETRIEVE_ACKNOWLEDGE_t) ,nt);
retrieve_acknowledge=(RETRIEVE_ACKNOWLEDGE_t*)((msg->data+HEADER_LEN));
enc_ie_channel_id(&retrieve_acknowledge->CHANNEL_ID, msg, 1, bc->channel, nt,bc);
#ifdef DEBUG
printf("Building RETRIEVE_ACKNOWLEDGE Msg\n");
#endif
return msg;
}
static void parse_retrieve_reject (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing RETRIEVE_REJECT Msg\n");
#endif
}
static msg_t *build_retrieve_reject (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_RETRIEVE_REJECT | REQUEST, MT_RETRIEVE_REJECT, bc?bc->l3_id:-1, sizeof(RETRIEVE_REJECT_t) ,nt);
#ifdef DEBUG
printf("Building RETRIEVE_REJECT Msg\n");
#endif
return msg;
}
static void parse_disconnect (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
DISCONNECT_t *disconnect = (DISCONNECT_t *) (msg->data + HEADER_LEN);
int location;
int cause;
dec_ie_cause(disconnect->CAUSE, (Q931_info_t *)(disconnect), &location, &cause, nt,bc);
if (cause>0) bc->cause=cause;
dec_ie_facility(disconnect->FACILITY, (Q931_info_t *) disconnect, &bc->fac_in, nt, bc);
dec_ie_progress(disconnect->PROGRESS, (Q931_info_t *)disconnect, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
#ifdef DEBUG
printf("Parsing DISCONNECT Msg\n");
#endif
}
static msg_t *build_disconnect (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
DISCONNECT_t *disconnect;
msg_t *msg =(msg_t*)create_l3msg(CC_DISCONNECT | REQUEST, MT_DISCONNECT, bc?bc->l3_id:-1, sizeof(DISCONNECT_t) ,nt);
disconnect=(DISCONNECT_t*)((msg->data+HEADER_LEN));
enc_ie_cause(&disconnect->CAUSE, msg, (nt)?1:0, bc->out_cause,nt,bc);
if (nt) {
enc_ie_progress(&disconnect->PROGRESS, msg, 0, nt ? 1 : 5, 8, nt, bc);
}
if (bc->fac_out.Function != Fac_None) {
enc_ie_facility(&disconnect->FACILITY, msg, &bc->fac_out, nt);
}
if (bc->uulen) {
int protocol=4;
enc_ie_useruser(&disconnect->USER_USER, msg, protocol, bc->uu, bc->uulen, nt,bc);
cb_log(1, bc->port, "ENCODING USERUSERINFO:%s\n", bc->uu);
}
#ifdef DEBUG
printf("Building DISCONNECT Msg\n");
#endif
return msg;
}
static void parse_restart (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
RESTART_t *restart = (RESTART_t *) (msg->data + HEADER_LEN);
struct misdn_stack *stack=get_stack_by_bc(bc);
#ifdef DEBUG
printf("Parsing RESTART Msg\n");
#endif
{
int exclusive;
dec_ie_channel_id(restart->CHANNEL_ID, (Q931_info_t *)restart, &exclusive, &bc->restart_channel, nt,bc);
cb_log(3, stack->port, "CC_RESTART Request on channel:%d on this port.\n", bc->restart_channel);
}
}
static msg_t *build_restart (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
RESTART_t *restart;
msg_t *msg =(msg_t*)create_l3msg(CC_RESTART | REQUEST, MT_RESTART, bc?bc->l3_id:-1, sizeof(RESTART_t) ,nt);
restart=(RESTART_t*)((msg->data+HEADER_LEN));
#ifdef DEBUG
printf("Building RESTART Msg\n");
#endif
if (bc->channel > 0) {
enc_ie_channel_id(&restart->CHANNEL_ID, msg, 1,bc->channel, nt,bc);
enc_ie_restart_ind(&restart->RESTART_IND, msg, 0x80, nt, bc);
} else {
enc_ie_restart_ind(&restart->RESTART_IND, msg, 0x87, nt, bc);
}
cb_log(0,bc->port, "Restarting channel %d\n", bc->channel);
return msg;
}
static void parse_release (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
RELEASE_t *release = (RELEASE_t *) (msg->data + HEADER_LEN);
int location;
int cause;
dec_ie_cause(release->CAUSE, (Q931_info_t *)(release), &location, &cause, nt,bc);
if (cause>0) bc->cause=cause;
dec_ie_facility(release->FACILITY, (Q931_info_t *) release, &bc->fac_in, nt, bc);
#ifdef DEBUG
printf("Parsing RELEASE Msg\n");
#endif
}
static msg_t *build_release (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
RELEASE_t *release;
msg_t *msg =(msg_t*)create_l3msg(CC_RELEASE | REQUEST, MT_RELEASE, bc?bc->l3_id:-1, sizeof(RELEASE_t) ,nt);
release=(RELEASE_t*)((msg->data+HEADER_LEN));
if (bc->out_cause>= 0)
enc_ie_cause(&release->CAUSE, msg, nt?1:0, bc->out_cause, nt,bc);
if (bc->fac_out.Function != Fac_None) {
enc_ie_facility(&release->FACILITY, msg, &bc->fac_out, nt);
}
if (bc->uulen) {
int protocol=4;
enc_ie_useruser(&release->USER_USER, msg, protocol, bc->uu, bc->uulen, nt,bc);
cb_log(1, bc->port, "ENCODING USERUSERINFO:%s\n", bc->uu);
}
#ifdef DEBUG
printf("Building RELEASE Msg\n");
#endif
return msg;
}
static void parse_release_complete (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
RELEASE_COMPLETE_t *release_complete = (RELEASE_COMPLETE_t *) (msg->data + HEADER_LEN);
int location;
int cause;
iframe_t *frm = (iframe_t*) msg->data;
struct misdn_stack *stack=get_stack_by_bc(bc);
mISDNuser_head_t *hh;
hh=(mISDNuser_head_t*)msg->data;
/*hh=(mISDN_head_t*)msg->data;
mISDN_head_t *hh;*/
if (nt) {
if (hh->prim == (CC_RELEASE_COMPLETE|CONFIRM)) {
cb_log(0, stack->port, "CC_RELEASE_COMPLETE|CONFIRM [NT] \n");
return;
}
} else {
if (frm->prim == (CC_RELEASE_COMPLETE|CONFIRM)) {
cb_log(0, stack->port, "CC_RELEASE_COMPLETE|CONFIRM [TE] \n");
return;
}
}
dec_ie_cause(release_complete->CAUSE, (Q931_info_t *)(release_complete), &location, &cause, nt,bc);
if (cause>0) bc->cause=cause;
dec_ie_facility(release_complete->FACILITY, (Q931_info_t *) release_complete, &bc->fac_in, nt, bc);
#ifdef DEBUG
printf("Parsing RELEASE_COMPLETE Msg\n");
#endif
}
static msg_t *build_release_complete (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
RELEASE_COMPLETE_t *release_complete;
msg_t *msg =(msg_t*)create_l3msg(CC_RELEASE_COMPLETE | REQUEST, MT_RELEASE_COMPLETE, bc?bc->l3_id:-1, sizeof(RELEASE_COMPLETE_t) ,nt);
release_complete=(RELEASE_COMPLETE_t*)((msg->data+HEADER_LEN));
enc_ie_cause(&release_complete->CAUSE, msg, nt?1:0, bc->out_cause, nt,bc);
if (bc->fac_out.Function != Fac_None) {
enc_ie_facility(&release_complete->FACILITY, msg, &bc->fac_out, nt);
}
if (bc->uulen) {
int protocol=4;
enc_ie_useruser(&release_complete->USER_USER, msg, protocol, bc->uu, bc->uulen, nt,bc);
cb_log(1, bc->port, "ENCODING USERUSERINFO:%s\n", bc->uu);
}
#ifdef DEBUG
printf("Building RELEASE_COMPLETE Msg\n");
#endif
return msg;
}
static void parse_facility (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt ? mISDNUSER_HEAD_SIZE : mISDN_HEADER_LEN;
FACILITY_t *facility = (FACILITY_t*)(msg->data+HEADER_LEN);
Q931_info_t *qi = (Q931_info_t*)(msg->data+HEADER_LEN);
unsigned char *p = NULL;
#if defined(AST_MISDN_ENHANCEMENTS)
int description_code;
int type;
int plan;
int present;
char number[sizeof(bc->redirecting.to.number)];
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
#ifdef DEBUG
printf("Parsing FACILITY Msg\n");
#endif
bc->fac_in.Function = Fac_None;
if (!bc->nt) {
if (qi->QI_ELEMENT(facility))
p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(facility) + 1;
} else {
p = facility->FACILITY;
}
if (!p)
return;
if (decodeFac(p, &bc->fac_in)) {
cb_log(3, bc->port, "Decoding facility ie failed! Unrecognized facility message?\n");
}
#if defined(AST_MISDN_ENHANCEMENTS)
dec_ie_notify(facility->NOTIFY, qi, &description_code, nt, bc);
if (description_code < 0) {
bc->notify_description_code = mISDN_NOTIFY_CODE_INVALID;
} else {
bc->notify_description_code = description_code;
}
dec_ie_redir_dn(facility->REDIR_DN, qi, &type, &plan, &present, number, sizeof(number), nt, bc);
if (0 <= type) {
bc->redirecting.to_changed = 1;
bc->redirecting.to.number_type = type;
bc->redirecting.to.number_plan = plan;
switch (present) {
default:
case 0:
bc->redirecting.to.presentation = 0; /* presentation allowed */
break;
case 1:
bc->redirecting.to.presentation = 1; /* presentation restricted */
break;
case 2:
bc->redirecting.to.presentation = 2; /* Number not available */
break;
}
bc->redirecting.to.screening = 0; /* Unscreened */
strcpy(bc->redirecting.to.number, number);
}
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
}
static msg_t *build_facility (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int len;
int HEADER_LEN;
unsigned char *ie_fac;
unsigned char fac_tmp[256];
msg_t *msg;
FACILITY_t *facility;
Q931_info_t *qi;
#ifdef DEBUG
printf("Building FACILITY Msg\n");
#endif
len = encodeFac(fac_tmp, &(bc->fac_out));
if (len <= 0) {
/*
* mISDN does not know how to build the requested facility structure
* Clear facility information
*/
bc->fac_out.Function = Fac_None;
#if defined(AST_MISDN_ENHANCEMENTS)
/* Clear other one shot information. */
bc->notify_description_code = mISDN_NOTIFY_CODE_INVALID;
bc->redirecting.to_changed = 0;
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
return NULL;
}
msg = (msg_t *) create_l3msg(CC_FACILITY | REQUEST, MT_FACILITY, bc ? bc->l3_id : -1, sizeof(FACILITY_t), nt);
HEADER_LEN = nt ? mISDNUSER_HEAD_SIZE : mISDN_HEADER_LEN;
facility = (FACILITY_t *) (msg->data + HEADER_LEN);
ie_fac = msg_put(msg, len);
if (bc->nt) {
facility->FACILITY = ie_fac + 1;
} else {
qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
qi->QI_ELEMENT(facility) = ie_fac - (unsigned char *)qi - sizeof(Q931_info_t);
}
memcpy(ie_fac, fac_tmp, len);
/* Clear facility information */
bc->fac_out.Function = Fac_None;
if (*bc->display) {
#ifdef DEBUG
printf("Sending %s as Display\n", bc->display);
#endif
enc_ie_display(&facility->DISPLAY, msg, bc->display, nt,bc);
}
#if defined(AST_MISDN_ENHANCEMENTS)
if (bc->notify_description_code != mISDN_NOTIFY_CODE_INVALID) {
enc_ie_notify(&facility->NOTIFY, msg, bc->notify_description_code, nt, bc);
bc->notify_description_code = mISDN_NOTIFY_CODE_INVALID;
}
if (bc->redirecting.to_changed) {
bc->redirecting.to_changed = 0;
switch (bc->outgoing_colp) {
case 0:/* pass */
case 1:/* restricted */
enc_ie_redir_dn(&facility->REDIR_DN, msg, bc->redirecting.to.number_type,
bc->redirecting.to.number_plan, bc->redirecting.to.presentation,
bc->redirecting.to.number, nt, bc);
break;
default:
break;
}
}
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
return msg;
}
#if defined(AST_MISDN_ENHANCEMENTS)
/*!
* \internal
* \brief Parse a received REGISTER message
*
* \param msgs Search table entry that called us.
* \param msg Received message contents
* \param bc Associated B channel
* \param nt TRUE if in NT mode.
*/
static void parse_register(struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN;
REGISTER_t *reg;
HEADER_LEN = nt ? mISDNUSER_HEAD_SIZE : mISDN_HEADER_LEN;
reg = (REGISTER_t *) (msg->data + HEADER_LEN);
/*
* A facility ie is optional.
* The peer may just be establishing a connection to send
* messages later.
*/
dec_ie_facility(reg->FACILITY, (Q931_info_t *) reg, &bc->fac_in, nt, bc);
}
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
#if defined(AST_MISDN_ENHANCEMENTS)
/*!
* \internal
* \brief Construct a REGISTER message
*
* \param msgs Search table entry that called us.
* \param bc Associated B channel
* \param nt TRUE if in NT mode.
*
* \return Allocated built message
*/
static msg_t *build_register(struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN;
REGISTER_t *reg;
msg_t *msg;
msg = (msg_t *) create_l3msg(CC_REGISTER | REQUEST, MT_REGISTER, bc ? bc->l3_id : -1, sizeof(REGISTER_t), nt);
HEADER_LEN = nt ? mISDNUSER_HEAD_SIZE : mISDN_HEADER_LEN;
reg = (REGISTER_t *) (msg->data + HEADER_LEN);
if (bc->fac_out.Function != Fac_None) {
enc_ie_facility(&reg->FACILITY, msg, &bc->fac_out, nt);
}
return msg;
}
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
static void parse_notify (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt ? mISDNUSER_HEAD_SIZE : mISDN_HEADER_LEN;
NOTIFY_t *notify = (NOTIFY_t *) (msg->data + HEADER_LEN);
int description_code;
int type;
int plan;
int present;
char number[sizeof(bc->redirecting.to.number)];
#ifdef DEBUG
printf("Parsing NOTIFY Msg\n");
#endif
dec_ie_notify(notify->NOTIFY, (Q931_info_t *) notify, &description_code, nt, bc);
if (description_code < 0) {
bc->notify_description_code = mISDN_NOTIFY_CODE_INVALID;
} else {
bc->notify_description_code = description_code;
}
dec_ie_redir_dn(notify->REDIR_DN, (Q931_info_t *) notify, &type, &plan, &present, number, sizeof(number), nt, bc);
if (0 <= type) {
bc->redirecting.to_changed = 1;
bc->redirecting.to.number_type = type;
bc->redirecting.to.number_plan = plan;
switch (present) {
default:
case 0:
bc->redirecting.to.presentation = 0; /* presentation allowed */
break;
case 1:
bc->redirecting.to.presentation = 1; /* presentation restricted */
break;
case 2:
bc->redirecting.to.presentation = 2; /* Number not available */
break;
}
bc->redirecting.to.screening = 0; /* Unscreened */
strcpy(bc->redirecting.to.number, number);
}
}
static msg_t *build_notify (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
NOTIFY_t *notify;
msg_t *msg =(msg_t*)create_l3msg(CC_NOTIFY | REQUEST, MT_NOTIFY, bc?bc->l3_id:-1, sizeof(NOTIFY_t) ,nt);
#ifdef DEBUG
printf("Building NOTIFY Msg\n");
#endif
notify = (NOTIFY_t *) (msg->data + HEADER_LEN);
enc_ie_notify(&notify->NOTIFY, msg, bc->notify_description_code, nt, bc);
bc->notify_description_code = mISDN_NOTIFY_CODE_INVALID;
if (bc->redirecting.to_changed) {
bc->redirecting.to_changed = 0;
switch (bc->outgoing_colp) {
case 0:/* pass */
case 1:/* restricted */
enc_ie_redir_dn(&notify->REDIR_DN, msg, bc->redirecting.to.number_type,
bc->redirecting.to.number_plan, bc->redirecting.to.presentation,
bc->redirecting.to.number, nt, bc);
break;
default:
break;
}
}
return msg;
}
static void parse_status_enquiry (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing STATUS_ENQUIRY Msg\n");
#endif
}
static msg_t *build_status_enquiry (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_STATUS_ENQUIRY | REQUEST, MT_STATUS_ENQUIRY, bc?bc->l3_id:-1, sizeof(STATUS_ENQUIRY_t) ,nt);
#ifdef DEBUG
printf("Building STATUS_ENQUIRY Msg\n");
#endif
return msg;
}
static void parse_information (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
INFORMATION_t *information = (INFORMATION_t *) (msg->data + HEADER_LEN);
int type, plan;
dec_ie_called_pn(information->CALLED_PN, (Q931_info_t *) information, &type, &plan, bc->info_dad, sizeof(bc->info_dad), nt, bc);
dec_ie_keypad(information->KEYPAD, (Q931_info_t *) information, bc->keypad, sizeof(bc->keypad), nt, bc);
#ifdef DEBUG
printf("Parsing INFORMATION Msg\n");
#endif
}
static msg_t *build_information (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
INFORMATION_t *information;
msg_t *msg =(msg_t*)create_l3msg(CC_INFORMATION | REQUEST, MT_INFORMATION, bc?bc->l3_id:-1, sizeof(INFORMATION_t) ,nt);
information=(INFORMATION_t*)((msg->data+HEADER_LEN));
enc_ie_called_pn(&information->CALLED_PN, msg, 0, 1, bc->info_dad, nt,bc);
{
if (*bc->display) {
#ifdef DEBUG
printf("Sending %s as Display\n", bc->display);
#endif
enc_ie_display(&information->DISPLAY, msg, bc->display, nt,bc);
}
}
#ifdef DEBUG
printf("Building INFORMATION Msg\n");
#endif
return msg;
}
static void parse_status (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
STATUS_t *status = (STATUS_t *) (msg->data + HEADER_LEN);
int location;
int cause;
dec_ie_cause(status->CAUSE, (Q931_info_t *)(status), &location, &cause, nt,bc);
if (cause>0) bc->cause=cause;
#ifdef DEBUG
printf("Parsing STATUS Msg\n");
#endif
}
static msg_t *build_status (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_STATUS | REQUEST, MT_STATUS, bc?bc->l3_id:-1, sizeof(STATUS_t) ,nt);
#ifdef DEBUG
printf("Building STATUS Msg\n");
#endif
return msg;
}
static void parse_timeout (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
#ifdef DEBUG
printf("Parsing STATUS Msg\n");
#endif
}
static msg_t *build_timeout (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
{
msg_t *msg =(msg_t*)create_l3msg(CC_STATUS | REQUEST, MT_STATUS, bc?bc->l3_id:-1, sizeof(STATUS_t) ,nt);
#ifdef DEBUG
printf("Building STATUS Msg\n");
#endif
return msg;
}
/************************************/
/** Msg Array **/
struct isdn_msg msgs_g[] = {
/* *INDENT-OFF* */
/* misdn_msg, event, msg_parser, msg_builder, info */
{ CC_PROCEEDING, EVENT_PROCEEDING, parse_proceeding, build_proceeding, "PROCEEDING" },
{ CC_ALERTING, EVENT_ALERTING, parse_alerting, build_alerting, "ALERTING" },
{ CC_PROGRESS, EVENT_PROGRESS, parse_progress, build_progress, "PROGRESS" },
{ CC_SETUP, EVENT_SETUP, parse_setup, build_setup, "SETUP" },
#if defined(AST_MISDN_ENHANCEMENTS)
{ CC_REGISTER, EVENT_REGISTER, parse_register, build_register, "REGISTER" },
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
{ CC_CONNECT, EVENT_CONNECT, parse_connect, build_connect, "CONNECT" },
{ CC_SETUP_ACKNOWLEDGE, EVENT_SETUP_ACKNOWLEDGE, parse_setup_acknowledge, build_setup_acknowledge, "SETUP_ACKNOWLEDGE" },
{ CC_CONNECT_ACKNOWLEDGE, EVENT_CONNECT_ACKNOWLEDGE, parse_connect_acknowledge, build_connect_acknowledge, "CONNECT_ACKNOWLEDGE " },
{ CC_USER_INFORMATION, EVENT_USER_INFORMATION, parse_user_information, build_user_information, "USER_INFORMATION" },
{ CC_SUSPEND_REJECT, EVENT_SUSPEND_REJECT, parse_suspend_reject, build_suspend_reject, "SUSPEND_REJECT" },
{ CC_RESUME_REJECT, EVENT_RESUME_REJECT, parse_resume_reject, build_resume_reject, "RESUME_REJECT" },
{ CC_HOLD, EVENT_HOLD, parse_hold, build_hold, "HOLD" },
{ CC_SUSPEND, EVENT_SUSPEND, parse_suspend, build_suspend, "SUSPEND" },
{ CC_RESUME, EVENT_RESUME, parse_resume, build_resume, "RESUME" },
{ CC_HOLD_ACKNOWLEDGE, EVENT_HOLD_ACKNOWLEDGE, parse_hold_acknowledge, build_hold_acknowledge, "HOLD_ACKNOWLEDGE" },
{ CC_SUSPEND_ACKNOWLEDGE, EVENT_SUSPEND_ACKNOWLEDGE, parse_suspend_acknowledge, build_suspend_acknowledge, "SUSPEND_ACKNOWLEDGE" },
{ CC_RESUME_ACKNOWLEDGE, EVENT_RESUME_ACKNOWLEDGE, parse_resume_acknowledge, build_resume_acknowledge, "RESUME_ACKNOWLEDGE" },
{ CC_HOLD_REJECT, EVENT_HOLD_REJECT, parse_hold_reject, build_hold_reject, "HOLD_REJECT" },
{ CC_RETRIEVE, EVENT_RETRIEVE, parse_retrieve, build_retrieve, "RETRIEVE" },
{ CC_RETRIEVE_ACKNOWLEDGE, EVENT_RETRIEVE_ACKNOWLEDGE, parse_retrieve_acknowledge, build_retrieve_acknowledge, "RETRIEVE_ACKNOWLEDGE" },
{ CC_RETRIEVE_REJECT, EVENT_RETRIEVE_REJECT, parse_retrieve_reject, build_retrieve_reject, "RETRIEVE_REJECT" },
{ CC_DISCONNECT, EVENT_DISCONNECT, parse_disconnect, build_disconnect, "DISCONNECT" },
{ CC_RESTART, EVENT_RESTART, parse_restart, build_restart, "RESTART" },
{ CC_RELEASE, EVENT_RELEASE, parse_release, build_release, "RELEASE" },
{ CC_RELEASE_COMPLETE, EVENT_RELEASE_COMPLETE, parse_release_complete, build_release_complete, "RELEASE_COMPLETE" },
{ CC_FACILITY, EVENT_FACILITY, parse_facility, build_facility, "FACILITY" },
{ CC_NOTIFY, EVENT_NOTIFY, parse_notify, build_notify, "NOTIFY" },
{ CC_STATUS_ENQUIRY, EVENT_STATUS_ENQUIRY, parse_status_enquiry, build_status_enquiry, "STATUS_ENQUIRY" },
{ CC_INFORMATION, EVENT_INFORMATION, parse_information, build_information, "INFORMATION" },
{ CC_STATUS, EVENT_STATUS, parse_status, build_status, "STATUS" },
{ CC_TIMEOUT, EVENT_TIMEOUT, parse_timeout, build_timeout, "TIMEOUT" },
{ 0, 0, NULL, NULL, NULL }
/* *INDENT-ON* */
};
#define msgs_max (sizeof(msgs_g)/sizeof(struct isdn_msg))
/** INTERFACE FCTS ***/
int isdn_msg_get_index(struct isdn_msg msgs[], msg_t *msg, int nt)
{
int i;
if (nt){
mISDNuser_head_t *hh = (mISDNuser_head_t*)msg->data;
for (i=0; i< msgs_max -1; i++) {
if ( (hh->prim&COMMAND_MASK)==(msgs[i].misdn_msg&COMMAND_MASK)) return i;
}
} else {
iframe_t *frm = (iframe_t*)msg->data;
for (i=0; i< msgs_max -1; i++)
if ( (frm->prim&COMMAND_MASK)==(msgs[i].misdn_msg&COMMAND_MASK)) return i;
}
return -1;
}
int isdn_msg_get_index_by_event(struct isdn_msg msgs[], enum event_e event, int nt)
{
int i;
for (i=0; i< msgs_max; i++)
if ( event == msgs[i].event) return i;
cb_log(10,0, "get_index: event not found!\n");
return -1;
}
enum event_e isdn_msg_get_event(struct isdn_msg msgs[], msg_t *msg, int nt)
{
int i=isdn_msg_get_index(msgs, msg, nt);
if(i>=0) return msgs[i].event;
return EVENT_UNKNOWN;
}
char * isdn_msg_get_info(struct isdn_msg msgs[], msg_t *msg, int nt)
{
int i=isdn_msg_get_index(msgs, msg, nt);
if(i>=0) return msgs[i].info;
return NULL;
}
char EVENT_CLEAN_INFO[] = "CLEAN_UP";
char EVENT_DTMF_TONE_INFO[] = "DTMF_TONE";
char EVENT_NEW_L3ID_INFO[] = "NEW_L3ID";
char EVENT_NEW_BC_INFO[] = "NEW_BC";
char EVENT_PORT_ALARM_INFO[] = "ALARM";
char EVENT_NEW_CHANNEL_INFO[] = "NEW_CHANNEL";
char EVENT_BCHAN_DATA_INFO[] = "BCHAN_DATA";
char EVENT_BCHAN_ACTIVATED_INFO[] = "BCHAN_ACTIVATED";
char EVENT_TONE_GENERATE_INFO[] = "TONE_GENERATE";
char EVENT_BCHAN_ERROR_INFO[] = "BCHAN_ERROR";
char * isdn_get_info(struct isdn_msg msgs[], enum event_e event, int nt)
{
int i=isdn_msg_get_index_by_event(msgs, event, nt);
if(i>=0) return msgs[i].info;
if (event == EVENT_CLEANUP) return EVENT_CLEAN_INFO;
if (event == EVENT_DTMF_TONE) return EVENT_DTMF_TONE_INFO;
if (event == EVENT_NEW_L3ID) return EVENT_NEW_L3ID_INFO;
if (event == EVENT_NEW_BC) return EVENT_NEW_BC_INFO;
if (event == EVENT_NEW_CHANNEL) return EVENT_NEW_CHANNEL_INFO;
if (event == EVENT_BCHAN_DATA) return EVENT_BCHAN_DATA_INFO;
if (event == EVENT_BCHAN_ACTIVATED) return EVENT_BCHAN_ACTIVATED_INFO;
if (event == EVENT_TONE_GENERATE) return EVENT_TONE_GENERATE_INFO;
if (event == EVENT_PORT_ALARM) return EVENT_PORT_ALARM_INFO;
if (event == EVENT_BCHAN_ERROR) return EVENT_BCHAN_ERROR_INFO;
return NULL;
}
int isdn_msg_parse_event(struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
{
int i=isdn_msg_get_index(msgs, msg, nt);
if(i<0) return -1;
msgs[i].msg_parser(msgs, msg, bc, nt);
return 0;
}
msg_t * isdn_msg_build_event(struct isdn_msg msgs[], struct misdn_bchannel *bc, enum event_e event, int nt)
{
int i=isdn_msg_get_index_by_event(msgs, event, nt);
if(i<0) return NULL;
return msgs[i].msg_builder(msgs, bc, nt);
}
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