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chan-capi/chan_capi_qsig_core.c

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/*
* An implementation of Common ISDN API 2.0 for Asterisk
*
* Copyright (C) 2005-2008 Cytronics & Melware
* Copyright (C) 2007 Mario Goegel
*
* Armin Schindler <armin@melware.de>
* Mario Goegel <m.goegel@gmx.de>
*
* This program is free software and may be modified and
* distributed under the terms of the GNU Public License.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "chan_capi_platform.h"
#include "chan_capi20.h"
#include "chan_capi.h"
#include "chan_capi_utils.h"
#include "chan_capi_qsig.h"
#include "chan_capi_qsig_ecma.h"
#include "chan_capi_qsig_asn197ade.h"
#include "chan_capi_qsig_asn197no.h"
AST_MUTEX_DEFINE_STATIC(qsig_verbose_lock);
/*
* helper for <pbx>_verbose with different verbose settings
*/
void cc_qsig_verbose(int c_d, char *text, ...)
{
char line[4096];
va_list ap;
va_start(ap, text);
vsnprintf(line, sizeof(line), text, ap);
va_end(ap);
#if 0
{
FILE *fp;
if ((fp = fopen("/tmp/cclog", "a")) != NULL) {
fprintf(fp, "%s", line);
fclose(fp);
}
}
#endif
if (option_verbose > 4) {
if ((!c_d) || ((c_d) && (capiqsigdebug))) {
cc_mutex_lock(&qsig_verbose_lock);
cc_pbx_verbose("%s", line);
cc_mutex_unlock(&qsig_verbose_lock);
}
}
}
/*!
* \brief Encodes an ASN.1 string with type of string
*
* \param asn1_type type of string like ASN1_OCTETSTRING
* \param data pointer to target buffer
* \param len size of target buffer
* \param max_len of the string data
* \param src source pointer for string
* \param src_len string length
* \return data length
*/
int cc_qsig_asn1_add_string2(unsigned char asn1_type, void *data, int len, int max_len, void *src, int src_len)
{
struct rose_component *comp = NULL;
if (len < 2 + src_len)
return -1;
if (max_len && (src_len > max_len))
src_len = max_len;
comp = (struct rose_component *)data;
comp->type = asn1_type;
comp->len = src_len;
memcpy(comp->data, src, src_len);
return 2 + src_len;
}
/*!
* \brief Encodes an ASN.1 string
*
* \param buf destination pointer for string
* \param idx index points to string position in buffer
* \param data string
* \param datalen string length
* \return always zero
*/
unsigned int cc_qsig_asn1_add_string(unsigned char *buf, int *idx, char *data, int datalen)
{
int myidx=*idx;
if ((1 + datalen + (*idx) ) > sizeof(*buf)) {
/* String exceeds buffer size */
return -1;
}
buf[myidx++] = datalen;
memcpy(&buf[myidx], data, datalen);
myidx += 1 + datalen;
*idx = myidx;
return 0;
}
/*
* Returns an string from ASN.1 encoded string
*/
unsigned int cc_qsig_asn1_get_string(unsigned char *buf, int buflen, unsigned char *data)
{
int strsize;
int myidx=0;
strsize = data[myidx++];
if (strsize > buflen)
strsize = buflen - 1;
memcpy(buf, &data[myidx], strsize);
buf[strsize] = 0;
/* don't increase strsize after closing zero - string ends at strsize ! */
return strsize;
}
/*
* Encode ASN.1 Integer
*/
unsigned int cc_qsig_asn1_add_integer(unsigned char *buf, int *idx, int value)
{
int myidx = *idx;
int intlen = 1;
if ((unsigned int)value > (unsigned int)0xFFFF)
return -1; /* no support at the moment */
if (value > 255)
intlen++; /* we need 2 bytes */
buf[myidx++] = ASN1_INTEGER;
buf[myidx++] = intlen;
if (intlen > 1) {
buf[myidx++] = (unsigned char)(value >> 8);
buf[myidx++] = (unsigned char)(value - 0xff00);
} else {
buf[myidx++] = (unsigned char)value;
}
*idx = myidx;
return 0;
}
/*
* Returns an Integer from ASN.1 Encoded Integer
*/
unsigned int cc_qsig_asn1_get_integer(unsigned char *data, int *idx)
{ /* TODO: not conform with negative integers */
int myidx = *idx;
int intlen;
int temp;
intlen = data[myidx++];
if ((intlen < 1) || (intlen > 2)) { /* i don't know if there's a bigger Integer as 16bit -> read specs */
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "ASN1Decode: Size of ASN.1 Integer not supported: %i\n", intlen);
*idx = myidx + intlen;
return 0;
}
temp = (char)data[myidx++];
if (intlen == 2) {
temp=(temp << 8) + data[myidx++];
}
*idx = myidx;
return temp;
}
/*
* Returns an Human Readable OID from ASN.1 Encoded OID
*/
unsigned char *cc_qsig_asn1_oid2str(unsigned char *data, int size)
{
unsigned char buf[1024];
char numbuf[10];
unsigned char *s;
int len, i;
unsigned long n;
s = buf;
if (size < 3) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "OID2STR: Object identifier too small (%i).\n", size);
return NULL;
}
#define N(n) \
snprintf(numbuf, sizeof numbuf, "%lu", (unsigned long)n); \
len = strlen(numbuf); \
memcpy(s, numbuf, len); \
s += len;
N(data[0] / 40)
*s++ = '.';
N(data[0] % 40)
n = 0;
for (i = 1; i < size; i++) {
n = n << 7 | (data[i] & 0x7f);
if ((data[i] & 0x80) == 0) {
*s++ = '.';
N(n)
n = 0;
}
}
*s++ = 0;
s = buf;
return (unsigned char *) ast_strdup((char*)s);
}
/*
* Check if OID is ECMA-ISDN (1.3.12.9.*)
*/
signed int cc_qsig_asn1_check_ecma_isdn_oid(unsigned char *data, int len)
{
/* 1.3 .12 .9 */
if ((data[0] == 0x2B) && (data[1] == 0x0C) && (data[2] == 0x09))
return 0;
return -1;
}
/*
* This function simply updates the length informations of the facility struct
*/
void cc_qsig_update_facility_length(unsigned char * buf, unsigned int idx)
{
buf[0] = idx;
buf[2] = idx-2;
}
/*
* Create Invoke Struct
*/
int cc_qsig_build_facility_struct(unsigned char * buf, unsigned int *idx, int protocolvar, int apdu_interpr, struct cc_qsig_nfe *nfe)
{
int myidx = *idx; /* we start with Index 1 - Byte 0 is Length of Facilitydataarray */
if (!myidx)
myidx++;
buf[myidx++] = 0x1c;
buf[myidx++] = 0; /* Byte 2 length of Facilitydataarray */
buf[myidx++] = 0x80 | protocolvar; /* QSIG Facility */
/* TODO: Outsource following struct to an separate function */
buf[myidx++] = COMP_TYPE_NFE; /* Network Facility Extension */
buf[myidx++] = 6; /* NFE Size hardcoded - not good */
buf[myidx++] = 0x80; /* Source Entity */
buf[myidx++] = 0x01;
buf[myidx++] = 0x00; /* End PINX hardcoded */
buf[myidx++] = 0x82; /* Dest. Entity */
buf[myidx++] = 0x01;
buf[myidx++] = 0x00; /* End PINX hardcoded */
buf[myidx++] = COMP_TYPE_APDU_INTERP; /* How to interpret this APDU */
buf[myidx++] = 0x01; /* Length */
buf[myidx++] = apdu_interpr;
/* Here will follow now the Invoke */
*idx = myidx;
cc_qsig_update_facility_length(buf, myidx);
return 0;
}
/*
* Add invoke to buf
*/
int cc_qsig_add_invoke(unsigned char * buf, unsigned int *idx, struct cc_qsig_invokedata *invoke, struct capi_pvt *i)
{
unsigned char oid1[] = {0x2b,0x0c,0x09,0x00};
int myidx = *idx;
int invlenidx;
int result;
buf[myidx++] = COMP_TYPE_INVOKE;
invlenidx = myidx; /* save the Invoke length index for later */
buf[myidx++] = 0;
result = cc_qsig_asn1_add_integer(buf, &myidx, invoke->id);
if (result) {
cc_log(LOG_ERROR, "QSIG: Cannot add invoke, identifier is not encoded!\n");
return -1;
}
if (invoke->descr_type == -1) {
switch (i->qsigfeat) {
case QSIG_TYPE_ALCATEL_ECMA:
invoke->descr_type = ASN1_OBJECTIDENTIFIER;
/* Set ECMA/ETSI OID */
oid1[3] = (unsigned char)invoke->type;
invoke->oid_len = sizeof(oid1);
memcpy(invoke->oid_bin, oid1, sizeof(oid1));
break;
case QSIG_TYPE_HICOM_ECMAV2:
invoke->descr_type = ASN1_INTEGER;
/* Leave type as it is */
break;
default:
/* INVOKE is not encoded */
break;
}
}
switch (invoke->descr_type) {
case ASN1_INTEGER:
result = cc_qsig_asn1_add_integer(buf, &myidx, invoke->type);
if (result) {
cc_log(LOG_ERROR, "QSIG: Cannot add invoke, type is not encoded!\n");
return -1;
}
break;
case ASN1_OBJECTIDENTIFIER:
if ((invoke->oid_len < 1) || (invoke->oid_len > 20)) {
cc_log(LOG_ERROR, "QSIG: Cannot add invoke, OID is too big!\n");
return -1;
}
buf[myidx++] = ASN1_OBJECTIDENTIFIER;
buf[myidx++] = invoke->oid_len;
memcpy(&buf[myidx], invoke->oid_bin, invoke->oid_len);
myidx += invoke->oid_len;
break;
default:
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Unknown Invoke Type, not encoded (%i)\n", invoke->descr_type);
return -1;
break;
}
if (invoke->datalen > 0) { /* may be no error, if there's no data */
memcpy(&buf[myidx], invoke->data, invoke->datalen);
myidx += invoke->datalen;
}
buf[invlenidx] = myidx - invlenidx - 1;
cc_qsig_update_facility_length(buf, myidx - 1);
*idx = myidx;
return 0;
}
/*
* Valid QSIG-Facility?
* Returns 0 if not
*/
unsigned int cc_qsig_check_facility(unsigned char *data, int *idx, int *apduval, int protocol)
{
int myidx = *idx;
char *APDU_STR[] = {"IGNORE", "REJECT CALL", "CLEAR CALL"};
/* First byte after Facility Length */
if (data[myidx] != (unsigned char)(0x80 | protocol)) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: received protocol 0x%#x not configured!\n", (data[myidx] ^= 0x80));
return 0;
}
myidx++;
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Supplementary Services\n");
if (data[myidx] == (unsigned char)COMP_TYPE_NFE) {
myidx++;
/* TODO: Check Entities? */
myidx += data[myidx] + 1;
*idx = myidx;
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Facility has NFE struct\n");
}
if ((data[myidx] == (unsigned char)COMP_TYPE_APDU_INTERP)) {
myidx++;
myidx += data[myidx];
*apduval = data[myidx++];
/* TODO: implement real reject or clear call ? */
*idx = myidx;
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Facility has APDU - What to do if INVOKE is unknown: %s\n", APDU_STR[*apduval]);
}
return 1;
}
/*
* Is this an INVOKE component?
* when not return -1, set idx to next byte (length of component?)
* *** check idx in this case, that we are not out of range - maybe we got an unknown component then
* when it is an invoke, return invoke length and set idx to first byte of component
*
*/
signed int cc_qsig_check_invoke(unsigned char *data, int *idx)
{
int myidx = *idx;
if (data[myidx++] == (unsigned char)COMP_TYPE_INVOKE) {
/* is an INVOKE */
*idx = myidx; /* Set index to length byte of component */
return data[myidx + 1]; /* return component length */
}
*idx += data[myidx]; /* we can end here, if it is an Invoke Result or Error */
return -1; /* what to do now? got no Invoke */
}
/*
* Get Invoke ID
* returns current index
* idx points to next byte in array
*/
signed int cc_qsig_get_invokeid(unsigned char *data, int *idx, struct cc_qsig_invokedata *invoke)
{
int myidx;
int invidtype = 0;
int invlen = 0;
int invoffset;
int temp = 0;
myidx = *idx;
invoffset = myidx;
invlen = data[myidx++];
if (invlen > 0) {
invoke->len = invlen; /* set Length of Invoke struct */
invoke->offset = invoffset; /* offset in Facility Array, where the Invoke Data starts */
invidtype = data[myidx++]; /* Get INVOKE Id Type */
if (invidtype != ASN1_INTEGER) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Unknown Invoke Identifier Type 0x%#x\n", invidtype);
return -1;
}
temp = cc_qsig_asn1_get_integer(data, &myidx);
invoke->id = temp;
*idx = myidx;
}
return 0;
}
/*
* fill the Invoke struct with all the invoke data
*/
signed int cc_qsig_fill_invokestruct(unsigned char *data, int *idx, struct cc_qsig_invokedata *invoke, int apduval)
{
int myidx = *idx;
int invoptyp;
int temp;
int temp2;
int datalen;
invoptyp = data[myidx++]; /* Invoke Operation Type 0x02=INTEGER, 0x06=OID */
switch (invoptyp) {
case ASN1_INTEGER:
invoke->apdu_interpr = apduval;
temp = cc_qsig_asn1_get_integer(data, &myidx);
invoke->descr_type = ASN1_INTEGER;
invoke->type = temp;
temp2 = (invoke->len) + (invoke->offset) + 1; /* Array End = Invoke Length + Invoke Offset +1 */
datalen = temp2 - myidx;
if (datalen > 255) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Unsupported INVOKE Operation Size (max 255 Bytes): %i\n", datalen);
datalen = 255;
}
invoke->datalen = datalen;
memcpy(invoke->data, &data[myidx], datalen); /* copy data of Invoke Operation */
myidx += datalen; /* points to next INVOKE component, if there's any */
*idx = myidx;
break;
case ASN1_OBJECTIDENTIFIER:
invoke->apdu_interpr = apduval;
invoke->descr_type = ASN1_OBJECTIDENTIFIER;
temp = data[myidx++]; /* Length of OID */
if (temp > 20) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Unsupported INVOKE Operation OID Size (max 20 Bytes): %i\n", temp);
temp = 20;
}
/* TODO: Maybe we decode the OID here and be verbose - have to write cc_qsig_asn1get_oid */
invoke->oid_len = temp;
memcpy(invoke->oid_bin, &data[myidx], temp); /* Copy OID to separate array */
myidx = myidx + temp; /* Set index to next information */
if (temp == 4) { /* even if we have an OID, set the numeric invoke type */
invoke->type = (int) invoke->oid_bin[3];
} else {
invoke->type = -1;
}
temp2 = (invoke->len) + (invoke->offset) + 1; /* Array End = Invoke Length + Invoke Offset +1 */
datalen = temp2 - myidx;
if (datalen > 255) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Unsupported INVOKE Operation Size (max 255 Bytes): %i\n", datalen);
datalen = 255;
}
invoke->datalen = datalen;
memcpy(invoke->data, &data[myidx], datalen); /* copy data of Invoke Operation */
myidx += datalen; /* points to next INVOKE component, if there's any */
*idx = myidx;
break;
default:
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Unknown INVOKE Operation Type: %i\n", invoptyp);
temp2 = (invoke->len) + (invoke->offset) + 1; /* Array End = Invoke Length + Invoke Offset +1 */
datalen = temp2 - myidx;
if (datalen > 255) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Unsupported INVOKE Operation Size (max 255 Bytes): %i\n", datalen);
datalen = 255;
}
*idx = myidx + datalen; /* Set index to next INVOKE, if there's any */
return -1;
break;
}
return 0; /* No problems */
}
static int ident_qsig_invoke(int invoketype)
{
switch (invoketype) {
case 0:
case 1:
case 2:
case 3:
return CCQSIG__ECMA__NAMEPRES;
case 4:
return CCQSIG__ECMA__PRPROPOSE;
case 12:
return CCQSIG__ECMA__CTCOMPLETE;
case 21:
return CCQSIG__ECMA__LEGINFO2;
default:
cc_qsig_verbose( 1, VERBOSE_PREFIX_4 "QSIG: Unhandled QSIG INVOKE (%i)\n", invoketype);
return -1;
}
}
/*
* Identify an INVOKE and return our own Ident Integer (CCQSIG__*)
*/
signed int cc_qsig_identifyinvoke(struct cc_qsig_invokedata *invoke, int protocol)
{
int invokedescrtype = 0;
int datalen;
/* cc_qsig_verbose( 1, VERBOSE_PREFIX_4 "CONNECT_IND (Ident Invoke %i)\n", invoke->descr_type); */
switch (protocol) {
case QSIG_TYPE_ALCATEL_ECMA:
switch (invoke->descr_type) {
case ASN1_INTEGER:
invokedescrtype = 1;
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: INVOKE OP (%i)\n", invoke->type);
return ident_qsig_invoke(invoke->type);
break;
case ASN1_OBJECTIDENTIFIER:
invokedescrtype = 2;
datalen = invoke->oid_len;
{
unsigned char *oidstr = NULL;
oidstr = cc_qsig_asn1_oid2str(invoke->oid_bin, invoke->oid_len);
if (oidstr) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: INVOKE OP (%s)\n", oidstr);
ast_free(oidstr);
} else {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: INVOKE OP (unknown - OID not displayable)\n");
}
}
if ((datalen) == 4) {
if (!cc_qsig_asn1_check_ecma_isdn_oid(invoke->oid_bin, datalen)) {
return ident_qsig_invoke( (int)invoke->oid_bin[3]);
}
}
return -1;
break;
default:
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Unidentified INVOKE OP\n");
break;
}
break;
case QSIG_TYPE_HICOM_ECMAV2:
switch (invoke->descr_type) {
case ASN1_INTEGER:
invokedescrtype = 1;
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: INVOKE OP (%i)\n", invoke->type);
return ident_qsig_invoke(invoke->type);
break;
case ASN1_OBJECTIDENTIFIER:
invokedescrtype = 2;
datalen = invoke->oid_len;
{
unsigned char *oidstr = NULL;
oidstr = cc_qsig_asn1_oid2str(invoke->oid_bin, invoke->oid_len);
if (oidstr) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: INVOKE OP (%s)\n", oidstr);
ast_free(oidstr);
} else {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: INVOKE OP (unknown - OID not displayable)\n");
}
}
if ((datalen) == 4) {
if (!cc_qsig_asn1_check_ecma_isdn_oid(invoke->oid_bin, datalen)) {
return ident_qsig_invoke( (int)invoke->oid_bin[3]);
}
}
break;
default:
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Unidentified INVOKE OP\n");
break;
}
break;
default:
break;
}
return -1;
}
/*
* find the interface (pvt) the PLCI belongs to
*/
static struct capi_pvt *capi_find_interface_bynumber(char * num)
{
struct capi_pvt *i;
if (!num)
return NULL;
for (i = capi_iflist; i; i = i->next) {
if (strcmp(i->cid, num) == 0 ||
strcmp(i->dnid, num) == 0)
return i;
}
#if 0
cc_mutex_lock(&nullif_lock);
for (i = nulliflist; i; i = i->next) {
if (strcmp(i->cid, num) == 0 ||
strcmp(i->dnid, num) == 0)
break;
}
cc_mutex_unlock(&nullif_lock);
#endif
return i;
}
static void pbx_capi_qsig_handle_ctc(struct cc_qsig_invokedata *invoke, struct capi_pvt *i)
{
struct cc_qsig_ctcomplete ctc;
struct capi_pvt *ii;
#define CLEAR_CTC { if (ctc.redirectionNumber.partyNumber) free_null(ctc.redirectionNumber.partyNumber);\
if (ctc.basicCallInfoElements) free_null(ctc.basicCallInfoElements); \
if (ctc.redirectionName) free_null(ctc.redirectionName); \
if (ctc.argumentExtension) free_null(ctc.argumentExtension); }
int res = cc_qsig_decode_ecma_calltransfer(invoke, i, &ctc);
if (!res)
return;
if (ctc.redirectionNumber.partyNumber && (ctc.endDesignation == 0)) {
ii = capi_find_interface_bynumber(ctc.redirectionNumber.partyNumber);
if (ii) {
char *prpn = i->qsig_data.if_pr_propose_pn;
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Call Transfer partner channel for %s found at channel %s, bridging possible.\n", ctc.redirectionNumber.partyNumber, ii->vname);
if (!(strlen(prpn))) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Path Replacement not configured, bridging not available!\n");
} else {
unsigned char fac[CAPI_MAX_FACILITYDATAARRAY_SIZE];
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: Trying to bridge with Path Replacement number %s...\n", prpn);
switch (ii->state) {
case CAPI_STATE_ALERTING:
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: peer is in state ALERTING, PATH REPLACE follows after CONNECT...\n");
ii->qsig_data.pr_propose_cid = ast_strdup("123"); /* HACK: need an dynamic ID */
ii->qsig_data.pr_propose_pn = ast_strdup(i->qsig_data.if_pr_propose_pn);
ii->qsig_data.pr_propose_doinboundbridge = 1;
i->qsig_data.pr_propose_doinboundbridge = 1;
i->qsig_data.partner_plci = ii->PLCI;
break;
case CAPI_STATE_CONNECTED:
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: peer is CONNECTED...\n");
i->qsig_data.pr_propose_cid = ast_strdup("123"); /* HACK: need an dynamic ID */
i->qsig_data.pr_propose_pn = ast_strdup(i->qsig_data.if_pr_propose_pn);
ii->qsig_data.pr_propose_doinboundbridge = 1;
ii->qsig_data.partner_plci = i->PLCI;
cc_qsig_do_facility(fac, i->owner, NULL, 4, 0);
capi_sendf(NULL, 0, CAPI_INFO_REQ, i->PLCI, get_capi_MessageNumber(),
"()(()()()s)", fac );
i->qsig_data.pr_propose_cid = NULL;
i->qsig_data.pr_propose_pn = NULL;
break;
default:
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "QSIG: peer's state is %i, which is not handled yet...\n", ii->state);
break;
}
}
CLEAR_CTC
}
}
CLEAR_CTC
return ;
}
/*
* Handle inbound INVOKEs
*/
unsigned int cc_qsig_handle_invokeoperation(int invokeident, struct cc_qsig_invokedata *invoke, struct capi_pvt *i)
{
switch (invokeident) {
case CCQSIG__ECMA__NAMEPRES:
cc_qsig_op_ecma_isdn_namepres(invoke, i);
break;
case CCQSIG__ECMA__PRPROPOSE:
cc_qsig_op_ecma_isdn_prpropose(invoke, i);
break;
case CCQSIG__ECMA__CTCOMPLETE:
pbx_capi_qsig_handle_ctc(invoke, i);
break;
case CCQSIG__ECMA__LEGINFO2:
cc_qsig_op_ecma_isdn_leginfo2(invoke, i);
break;
default:
break;
}
return 0;
}
/**
* Handles incoming facilities
*
* @internal
* @param data facility buffer
* @param i points to capip_pvt struct
* @param idx index in facility buffer
* @param faclen facility length
* @param protocoltype Q932_PROTOCOL_ROSE | Q932_PROTOCOL_EXTENSIONS
* @return zero
*/
static int qsig_handle_q932facility(unsigned char *data, struct capi_pvt *i, int *idx, int faclen, int protocoltype)
{
int facidx = *idx;
int action_unkn_apdu; /* What to do with unknown Invoke-APDUs (0=Ignore, 1=clear call, 2=reject APDU) */
struct cc_qsig_invokedata invoke;
int invoke_len;
int invoketmp1;
unsigned int invoke_op = 0; /* Invoke Operation ID */
if (cc_qsig_check_facility(data, &facidx, &action_unkn_apdu, protocoltype)) {
while ((facidx) < faclen) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "Checking INVOKE at index %i (of %i)\n", facidx, faclen);
invoke_len = cc_qsig_check_invoke(data, &facidx);
if (invoke_len > 0) {
if (cc_qsig_get_invokeid(data, &facidx, &invoke) == 0) {
invoketmp1 = cc_qsig_fill_invokestruct(data, &facidx, &invoke, action_unkn_apdu);
invoke_op = cc_qsig_identifyinvoke(&invoke, i->qsigfeat);
if (invoke_op < 0) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "Invoke not identified!\n");
}
cc_qsig_handle_invokeoperation(invoke_op, &invoke, i);
}
} else {
/* Not an Invoke */
}
}
} else { /* kill endlessloop */
facidx += faclen;
}
*idx = facidx;
return 0;
}
/*
* Handles incoming Indications from CAPI
*/
unsigned int cc_qsig_handle_capiind(unsigned char *data, struct capi_pvt *i)
{
int faclen0 = 0;
int faclen = 0;
int facidx = 2;
if (!i->qsigfeat)
return 0;
if (!data) {
return 0;
}
faclen0 = data[facidx-2]; /* Length of facility array - there may be more facilities encoded in this struct */
faclen = data[facidx++];
faclen += facidx;
while (facidx < faclen0) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "Checking Facility at index %i\n", facidx);
switch (i->qsigfeat) {
case QSIG_TYPE_ALCATEL_ECMA:
qsig_handle_q932facility(data, i, &facidx, faclen, Q932_PROTOCOL_ROSE);
break;
case QSIG_TYPE_HICOM_ECMAV2:
qsig_handle_q932facility(data, i, &facidx, faclen, Q932_PROTOCOL_EXTENSIONS);
break;
default:
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "Unknown QSIG protocol configured (%i)\n", i->qsigfeat);
break;
}
if (facidx < faclen0) { /* there may follow a new facility */
if (data[facidx] == 0x1c) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "Found another facility at index %i\n", facidx);
facidx++;
faclen = data[facidx++];
faclen += facidx;
} else {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "More data found in facility at index %i, but this is not an facility (%#x)\n", facidx, data[facidx]);
facidx++; /* don't start an endlessloop */
}
}
}
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "Facility done at index %i from %i\n", facidx, faclen);
return 1;
}
/*
* Handles incoming Facility Indications from CAPI
*/
unsigned int cc_qsig_handle_capi_facilityind(unsigned char *data, struct capi_pvt *i)
{
int faclen = 0;
int facidx = 0;
if (!data) {
return 0;
}
faclen = data[facidx++];
/* cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "CONNECT_IND (Got Facility IE, Length=%#x)\n", faclen); */
while (facidx < faclen) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "Checking Facility at index %i\n", facidx);
switch (i->qsigfeat) {
case QSIG_TYPE_ALCATEL_ECMA:
qsig_handle_q932facility(data, i, &facidx, faclen, Q932_PROTOCOL_ROSE);
break;
case QSIG_TYPE_HICOM_ECMAV2:
qsig_handle_q932facility(data, i, &facidx, faclen, Q932_PROTOCOL_EXTENSIONS);
break;
default:
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "Unknown QSIG protocol configured (%i)\n", i->qsigfeat);
/* kill endlessloop */
facidx += faclen;
break;
}
}
cc_qsig_verbose( 1, VERBOSE_PREFIX_3 "Facility done at index %i from %i\n", facidx, faclen);
return 1;
}
static int identify_qsig_setup_callfeature(char *param)
{
char *p = param;
switch (*p) {
case 't':
cc_qsig_verbose( 1, "Call Transfer");
p++;
if (*p == 'r') {
cc_qsig_verbose( 1, " on ALERT");
return 2;
} else {
return 1;
}
default:
cc_qsig_verbose( 1, "unknown (%c)\n", *p);
break;
}
return 0;
}
/*
* Handles outgoing Facilies on Call SETUP
*/
unsigned int cc_qsig_add_call_setup_data(unsigned char *data, struct capi_pvt *i, struct ast_channel *c)
{
/* TODO: Check buffers */
struct cc_qsig_invokedata invoke;
struct cc_qsig_nfe nfe;
unsigned int dataidx = 0;
int protocolvar = 0;
const unsigned char xprogress[] = {0x1e,0x02,0xa0,0x90};
char *p = NULL;
char *pp = NULL;
int add_externalinfo = 0;
data[0] = 0; /* Initialize array length */
if ((p = (char *)pbx_builtin_getvar_helper(c, "QSIG_SETUP"))) {
/* some special dial parameters */
/* parse the parameters */
while ((p) && (*p)) {
switch (*p) {
case 'X': /* add PROGRESS INDICATOR for external calls*/
cc_qsig_verbose( 1, VERBOSE_PREFIX_4 "Sending QSIG external PROGRESS IE.\n");
add_externalinfo = 1;
pp = strsep (&p, "/");
pp = NULL;
break;
case 'C':
cc_qsig_verbose( 1, VERBOSE_PREFIX_4 "QSIG Call Feature requested: ");
p++;
switch(identify_qsig_setup_callfeature(p)) {
case 1: /* Call transfer */
p++;
pp = strsep(&p, "/");
if (!pp) {
cc_log(LOG_WARNING, "QSIG Call Feature needs plci as parameter!\n");
} else {
i->qsig_data.calltransfer = 1;
i->qsig_data.partner_plci = atoi(pp);
/* set the other channel as partner to me */
{
struct capi_pvt *ii = capi_find_interface_by_plci(i->qsig_data.partner_plci);
if (ii)
ii->qsig_data.partner_plci = i->PLCI;
}
cc_qsig_verbose( 1, " for plci %#x\n", i->qsig_data.partner_plci);
}
break;
case 2: /* Call transfer on ring */
p += 2;
pp = strsep(&p, "/");
if (!pp) {
cc_log(LOG_WARNING, "QSIG Call Feature needs plci as parameter!\n");
} else {
i->qsig_data.calltransfer_onring = 1;
i->qsig_data.partner_plci = atoi(pp);
/* set the other channel as partner to me */
{
struct capi_pvt *ii = capi_find_interface_by_plci(i->qsig_data.partner_plci);
if (ii)
ii->qsig_data.partner_plci = i->PLCI;
}
cc_qsig_verbose( 1, " for plci %#x\n", i->qsig_data.partner_plci);
}
break;
default:
pp = strsep(&p, "/");
break;
}
pp = NULL;
break;
default:
cc_log(LOG_WARNING, "Unknown parameter '%c' in QSIG_SETUP, ignoring.\n", *p);
p++;
}
}
}
switch (i->qsigfeat) {
case QSIG_TYPE_ALCATEL_ECMA:
protocolvar = Q932_PROTOCOL_ROSE;
break;
case QSIG_TYPE_HICOM_ECMAV2:
protocolvar = Q932_PROTOCOL_EXTENSIONS;
break;
default:
cc_log(LOG_WARNING, " Unknown QSIG variant configured.\n");
return 0;
break;
}
cc_qsig_build_facility_struct(data, &dataidx, protocolvar, APDUINTERPRETATION_IGNORE, &nfe);
cc_qsig_encode_ecma_name_invoke(data, &dataidx, &invoke, i, 0, pbx_capi_get_connectedname (i->owner, ""));
cc_qsig_add_invoke(data, &dataidx, &invoke, i);
if (add_externalinfo) {
/* add PROGRESS INDICATOR for external calls*/
int progress_size = sizeof(xprogress);
memcpy(&data[dataidx], xprogress, progress_size);
data[0] += progress_size;
dataidx += progress_size;
}
return 0;
}
/*
* Handles outgoing Facilies on Call Answer
*/
unsigned int cc_qsig_add_call_answer_data(unsigned char *data, struct capi_pvt *i, struct ast_channel *c)
{
struct cc_qsig_invokedata invoke;
struct cc_qsig_nfe nfe;
unsigned int dataidx = 0;
int protocolvar = 0;
const char *connectedname;
data[0] = 0;
if (!i->qsigfeat)
return 0;
if (!(connectedname = pbx_builtin_getvar_helper(c, "CONNECTEDNAME")))
return 0;
if (!strlen(connectedname))
return 0;
switch (i->qsigfeat) {
case QSIG_TYPE_ALCATEL_ECMA:
protocolvar = Q932_PROTOCOL_ROSE;
break;
case QSIG_TYPE_HICOM_ECMAV2:
protocolvar = Q932_PROTOCOL_EXTENSIONS;
break;
default:
cc_log(LOG_WARNING, " Unknown QSIG variant configured.\n");
return 0;
break;
}
cc_qsig_build_facility_struct(data, &dataidx, protocolvar, APDUINTERPRETATION_IGNORE, &nfe);
cc_qsig_encode_ecma_name_invoke(data, &dataidx, &invoke, i, 2, (char *)connectedname);
cc_qsig_add_invoke(data, &dataidx, &invoke, i);
return 1;
}
/*
* Handles outgoing Facilies on Call Alert
*/
unsigned int cc_qsig_add_call_alert_data(unsigned char *data, struct capi_pvt *i, struct ast_channel *c)
{
struct cc_qsig_invokedata invoke;
struct cc_qsig_nfe nfe;
unsigned int dataidx = 0;
int protocolvar = 0;
const char *connectedname;
data[0] = 0;
if (!i->qsigfeat)
return 0;
if (!(connectedname = pbx_builtin_getvar_helper(c, "CALLEDNAME")))
return 0;
if (!strlen(connectedname))
return 0;
switch (i->qsigfeat) {
case QSIG_TYPE_ALCATEL_ECMA:
protocolvar = Q932_PROTOCOL_ROSE;
break;
case QSIG_TYPE_HICOM_ECMAV2:
protocolvar = Q932_PROTOCOL_EXTENSIONS;
break;
default:
cc_log(LOG_WARNING, " Unknown QSIG variant configured.\n");
return 0;
break;
}
cc_qsig_build_facility_struct(data, &dataidx, protocolvar, APDUINTERPRETATION_IGNORE, &nfe);
cc_qsig_encode_ecma_name_invoke(data, &dataidx, &invoke, i, 1, (char *)connectedname);
cc_qsig_add_invoke(data, &dataidx, &invoke, i);
return 1;
}
/*
* Handles outgoing Facilies on capicommand
*/
unsigned int cc_qsig_do_facility(unsigned char *fac, struct ast_channel *c, char *param, unsigned int factype, int info1)
{
struct cc_qsig_invokedata invoke;
struct cc_qsig_nfe nfe;
struct capi_pvt *i = CC_CHANNEL_PVT(c);
/* struct capi_pvt *ii = NULL; */
unsigned int facidx = 0;
int protocolvar = 0;
switch (i->qsigfeat) {
case QSIG_TYPE_ALCATEL_ECMA:
protocolvar = Q932_PROTOCOL_ROSE;
break;
case QSIG_TYPE_HICOM_ECMAV2:
protocolvar = Q932_PROTOCOL_EXTENSIONS;
break;
default:
cc_log(LOG_WARNING, " Unknown QSIG variant configured.\n");
return 0;
break;
}
cc_qsig_build_facility_struct(fac, &facidx, protocolvar, APDUINTERPRETATION_IGNORE, &nfe);
switch (factype) {
case 4: /* ECMA-xxx pathReplacementPropose */
cc_qsig_encode_ecma_prpropose(fac, &facidx, &invoke, i, param);
cc_qsig_add_invoke(fac, &facidx, &invoke, i);
break;
case 12: /* ECMA-178 callTransfer */
cc_qsig_encode_ecma_calltransfer(fac, &facidx, &invoke, i, param, info1);
cc_qsig_add_invoke(fac, &facidx, &invoke, i);
break;
case 99: /* ECMA-300 simpleCallTransfer */
cc_qsig_encode_ecma_sscalltransfer(fac, &facidx, &invoke, i, param);
cc_qsig_add_invoke(fac, &facidx, &invoke, i);
break;
default:
break;
}
return 0;
}
/*
* capicommand getplci - needed for Call Transfer
*/
int pbx_capi_qsig_getplci(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
char buffer[10];
snprintf(buffer, sizeof(buffer)-1, "%d", i->PLCI);
cc_qsig_verbose( 1, VERBOSE_PREFIX_4 "QSIG_GETPLCI: %s\n", buffer);
pbx_builtin_setvar_helper(c, "QSIG_PLCI", buffer);
return 0;
}
/*
* Initiate a QSIG Single Step Call Transfer
*/
int pbx_capi_qsig_ssct(struct ast_channel *c, char *param)
{
unsigned char fac[CAPI_MAX_FACILITYDATAARRAY_SIZE];
struct capi_pvt *i = CC_CHANNEL_PVT(c);
if (!param) { /* no data implies no Calling Number and Destination Number */
cc_log(LOG_WARNING, CC_MESSAGE_NAME " qsig_ssct requires source number and destination number\n");
return -1;
}
cc_qsig_do_facility(fac, c, param, 99, 0);
capi_sendf(NULL, 0, CAPI_INFO_REQ, i->PLCI, get_capi_MessageNumber(),
"()(()()()s)",
fac
);
return 0;
}
/*
* Initiate a QSIG Call Transfer
*/
int pbx_capi_qsig_ct(struct ast_channel *c, char *param)
{
unsigned char fac[CAPI_MAX_FACILITYDATAARRAY_SIZE];
struct capi_pvt *i = CC_CHANNEL_PVT(c);
struct capi_pvt *ii = NULL;
unsigned int callmark;
char *marker;
if (!param) { /* no data implies no Calling Number and Destination Number */
cc_log(LOG_WARNING, CC_MESSAGE_NAME " qsig_ct requires call marker, source number, destination number and await_connect info\n");
return -1;
}
marker = strsep(&param, COMMANDSEPARATOR);
callmark = atoi(marker);
cc_qsig_verbose( 1, VERBOSE_PREFIX_4 " * QSIG_CT: using call marker %i(%s)\n", callmark, marker);
for (ii = capi_iflist; ii; ii = ii->next) {
if (ii->qsig_data.callmark == callmark)
break;
}
if (!ii) {
cc_log(LOG_WARNING, CC_MESSAGE_NAME " qsig_ct call marker not found!\n");
return -1;
}
cc_qsig_do_facility(fac, c, param, 12, 1);
capi_sendf(NULL, 0, CAPI_INFO_REQ, i->PLCI, get_capi_MessageNumber(),
"()(()()()s())",
fac
);
cc_qsig_do_facility(fac, c, param, 12, 0);
capi_sendf(NULL, 0, CAPI_INFO_REQ, ii->PLCI, get_capi_MessageNumber(),
"()(()()()s())",
fac
);
return 0;
}
/*
* mark an call
*/
int pbx_capi_qsig_callmark(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
if (!param) { /* no data implies no Calling Number and Destination Number */
cc_log(LOG_WARNING, "capi qsig_callmark requires an call identifier\n");
return -1;
}
i->qsig_data.callmark = atoi(param);
return 0;
}
static void send_feature_calltransfer(struct capi_pvt *i)
{
unsigned char *fac = alloca(CAPI_MAX_FACILITYDATAARRAY_SIZE);
struct capi_pvt *ii = capi_find_interface_by_plci(i->qsig_data.partner_plci);
/* needed for Path Replacement */
ii->qsig_data.partner_plci = i->PLCI;
if (ii) {
cc_qsig_do_facility(fac, i->owner, NULL, 12, 1);
capi_sendf(NULL, 0, CAPI_INFO_REQ, i->PLCI, get_capi_MessageNumber(), "()(()()()s())", fac);
cc_qsig_do_facility(fac, ii->owner, NULL, 12, 0);
capi_sendf(NULL, 0, CAPI_INFO_REQ, ii->PLCI, get_capi_MessageNumber(), "()(()()()s())", fac);
} else {
cc_log(LOG_WARNING, "Call Transfer failed - second channel not found (PLCI %#x)!\n", i->qsig_data.partner_plci);
}
}
/*
* init QSIG data on new channel - will be called by mkif
*/
void cc_qsig_interface_init(struct cc_capi_conf *conf, struct capi_pvt *tmp)
{
tmp->qsigfeat = conf->qsigfeat;
if (!conf->qsigfeat)
return;
tmp->qsig_data.calltransfer_active = 0;
tmp->qsig_data.calltransfer = 0;
tmp->qsig_data.calltransfer_onring = 0;
tmp->qsig_data.callmark = 0;
tmp->qsig_data.dnameid = NULL;
/* Path Replacement */
tmp->qsig_data.pr_propose_active = 0;
tmp->qsig_data.pr_propose_sendback = 0; /* send back an prior received PR PROPOSE on Connect */
tmp->qsig_data.pr_propose_sentback = 0;
tmp->qsig_data.pr_propose_doinboundbridge = 0;
tmp->qsig_data.pr_propose_cid = NULL; /* Call identity */
tmp->qsig_data.pr_propose_pn = NULL; /* Party Number */
cc_copy_string(tmp->qsig_data.if_pr_propose_pn, conf->qsigconf.if_pr_propose_pn, sizeof(tmp->qsig_data.if_pr_propose_pn));
/* Partner Channel - needed for many features */
tmp->qsig_data.partner_ch = NULL;
tmp->qsig_data.partner_plci = 0;
tmp->qsig_data.waitevent = 0;
ast_cond_init(&tmp->qsig_data.event_trigger, NULL);
}
/*
* build the qsig-interface according to configs
*/
void cc_pbx_qsig_conf_interface_value(struct cc_capi_conf *conf, struct ast_variable *v)
{
#define CONF_STRING(var, token) \
if (!strcasecmp(v->name, token)) { \
cc_copy_string(var, v->value, sizeof(var)); \
}
#define CONF_INTEGER(var, token) \
if (!strcasecmp(v->name, token)) { \
var = atoi(v->value); \
}
#define CONF_TRUE(var, token, val) \
if (!strcasecmp(v->name, token)) { \
if (ast_true(v->value)) \
var = val; \
}
CONF_INTEGER(conf->qsigfeat, "qsig")
CONF_TRUE(conf->divaqsig, "divaqsig", 1)
CONF_STRING(conf->qsigconf.if_pr_propose_pn, "qsig_prnum")
#undef CONF_STRING
#undef CONF_INTEGER
#undef CONF_TRUE
}
/*
* cleanup QSIG stuff on every (end of) call per interface
*/
static void qsig_cleanup_channel(struct capi_pvt *i)
{
i->qsig_data.callmark = 0;
i->qsig_data.partner_ch = NULL;
i->qsig_data.calltransfer_active = 0;
i->qsig_data.calltransfer_onring = 0;
i->qsig_data.pr_propose_active = 0;
i->qsig_data.pr_propose_sentback = 0;
i->qsig_data.pr_propose_doinboundbridge = 0;
if (i->qsig_data.pr_propose_cid) {
ast_free(i->qsig_data.pr_propose_cid);
i->qsig_data.pr_propose_cid = NULL;
}
if (i->qsig_data.pr_propose_pn) {
ast_free(i->qsig_data.pr_propose_pn);
i->qsig_data.pr_propose_pn = NULL;
}
if (i->qsig_data.dnameid) {
ast_free(i->qsig_data.dnameid);
i->qsig_data.dnameid = NULL;
}
}
/*
* cleanup QSIG stuff on interface
*/
void interface_cleanup_qsig(struct capi_pvt *i)
{
if (i->qsigfeat) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_4 "QSIG: cleanup channel\n");
qsig_cleanup_channel(i);
}
}
/*
* cleanup QSIG stuff on module unload
*/
void pbx_capi_qsig_unload_module(struct capi_pvt *i)
{
if (!i->qsigfeat)
return;
ast_cond_destroy(&i->qsig_data.event_trigger);
}
/*
* wait for B3 up
*/
int pbx_capi_qsig_wait_for_prpropose(struct capi_pvt *i)
{
struct timespec abstime;
int ret = 1;
cc_mutex_lock(&i->lock);
if (!(i->qsig_data.pr_propose_sentback)) {
i->qsig_data.waitevent = CAPI_QSIG_WAITEVENT_PRPROPOSE;
abstime.tv_sec = time(NULL) + CCQSIG_TIMER_WAIT_PRPROPOSE; /* PR PROPOSE TIMER */
abstime.tv_nsec = 0;
cc_qsig_verbose( 1, "%s: wait for PATH REPLACEMENT.\n",
i->vname);
if (ast_cond_timedwait(&i->qsig_data.event_trigger, &i->lock, &abstime) != 0) {
cc_log(LOG_WARNING, "%s: timed out waiting for PATH REPLACEMENT.\n",
i->vname);
ret = 0;
} else {
cc_qsig_verbose( 1, "%s: cond signal received for PATH REPLACEMENT.\n",
i->vname);
}
}
cc_mutex_unlock(&i->lock);
return ret;
}
/*
* check special conditions, wake waiting threads and send outstanding commands
* for the given interface
*/
static void pbx_capi_qsig_post_handling(struct capi_pvt *i)
{
if ((i->qsig_data.waitevent == CAPI_QSIG_WAITEVENT_PRPROPOSE) &&
(i->qsig_data.pr_propose_sentback == 1)) {
i->qsig_data.waitevent = 0;
ast_cond_signal(&i->qsig_data.event_trigger);
cc_qsig_verbose( 1, "%s: found and signal for PATH REPLACEMENT state.\n",
i->vname);
return;
}
}
/*
* handle a bridge attempt - maybe we're allowed to make a path replacement
*/
int pbx_capi_qsig_bridge(struct capi_pvt *i0,struct capi_pvt *i1)
{
if (i1->qsig_data.pr_propose_sentback) {
return 2; /* Path Replacement already sent out - call will be cleared in short */
}
i1->qsig_data.partner_plci = i0->PLCI;
send_feature_calltransfer(i1);
if (pbx_capi_qsig_wait_for_prpropose(i1))
return 1; /* Path Replacement successful */
/* No Path Replacement - allow line interconnect */
return 0;
}
int pbx_capi_qsig_sendtext(struct ast_channel *c, const char *text)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
#if 0
/* suppress compiler warnings */
unsigned char *data = alloca(CAPI_MAX_FACILITYDATAARRAY_SIZE);
unsigned int dataidx = 0;
struct cc_qsig_invokedata invoke;
struct cc_qsig_nfe nfe;
#endif
int protocolvar = 0;
if (!i->qsigfeat)
return 0;
if (!strlen(text))
return 0;
switch (i->qsigfeat) {
case QSIG_TYPE_ALCATEL_ECMA:
protocolvar = Q932_PROTOCOL_ROSE;
break;
case QSIG_TYPE_HICOM_ECMAV2:
protocolvar = Q932_PROTOCOL_EXTENSIONS;
break;
default:
cc_log(LOG_WARNING, " Unknown QSIG variant configured.\n");
return 0;
break;
}
/* TODO: implement something - QSIG_LEG_INFO3 doesn't work here */
return 0;
}
/*
* CAPI INFO_IND (QSIG part)
*/
void pbx_capi_qsig_handle_info_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
if (!i->qsigfeat) /* Run only, if QSIG enabled */
return;
switch(INFO_IND_INFONUMBER(CMSG)) {
case 0x0008: /* Cause */
break;
case 0x0014: /* Call State */
break;
case 0x0018: /* Channel Identification */
break;
case 0x001c: /* Facility Q.932 */
{
unsigned int qsiginvoke;
qsiginvoke = cc_qsig_handle_capi_facilityind( (unsigned char*) INFO_IND_INFOELEMENT(CMSG), i);
/* got an Path Replacement */
if ((i->qsig_data.pr_propose_cid && i->qsig_data.pr_propose_pn) &! i->qsig_data.pr_propose_sendback &! i->qsig_data.pr_propose_doinboundbridge) {
struct capi_pvt *ii = capi_find_interface_by_plci(i->qsig_data.partner_plci);
if (ii) {
if (ii->state == CAPI_STATE_CONNECTED) { /* second line is connected, we can proceed */
unsigned char fac[CAPI_MAX_FACILITYDATAARRAY_SIZE];
cc_qsig_do_facility(fac, i->owner, NULL, 4, 0);
capi_sendf(NULL, 0, CAPI_INFO_REQ, ii->PLCI, get_capi_MessageNumber(),
"()(()()()s)",
fac
);
i->qsig_data.pr_propose_active = 1;
ii->qsig_data.pr_propose_sentback = 1;
} else { /* Path Replacement has to be sent back after Connect on second line */
ii->qsig_data.pr_propose_sendback = 1;
ii->qsig_data.pr_propose_cid = ast_strdup(i->qsig_data.pr_propose_cid);
ii->qsig_data.pr_propose_pn = ast_strdup(i->qsig_data.pr_propose_pn);
ii->qsig_data.pr_propose_active = 1;
}
} else
cc_qsig_verbose( 1, VERBOSE_PREFIX_4 " * QSIG_PATHREPLACEMENT_PROPOSE: no partner channel found (%#x)\n", i->qsig_data.partner_plci);
ast_free(i->qsig_data.pr_propose_cid);
i->qsig_data.pr_propose_cid = NULL;
ast_free(i->qsig_data.pr_propose_pn);
i->qsig_data.pr_propose_pn = NULL;
}
if ((i->qsig_data.pr_propose_cid && i->qsig_data.pr_propose_pn) && i->qsig_data.pr_propose_doinboundbridge) {
struct ast_channel *chanx;
struct capi_pvt *ii = capi_find_interface_by_plci(i->qsig_data.partner_plci);
if (ii) {
cc_qsig_verbose( 1, VERBOSE_PREFIX_4 " * QSIG_PATHREPLACEMENT_PROPOSE: trying to complete bridge...\n");
chanx = ast_bridged_channel(i->owner);
ast_channel_masquerade(ii->owner, chanx);
}
ast_free(i->qsig_data.pr_propose_cid);
i->qsig_data.pr_propose_cid = NULL;
ast_free(i->qsig_data.pr_propose_pn);
i->qsig_data.pr_propose_pn = NULL;
}
}
break;
case 0x001e: /* Progress Indicator */
break;
case 0x0027: /* Notification Indicator */
break;
case 0x0028: /* DSP */
break;
case 0x0029: /* Date/Time */
break;
case 0x0070: /* Called Party Number */
break;
case 0x0074: /* Redirecting Number */
break;
case 0x0076: /* Redirection Number */
break;
case 0x00a1: /* Sending Complete */
break;
case 0x4000: /* CHARGE in UNITS */
break;
case 0x4001: /* CHARGE in CURRENCY */
break;
case 0x8001: /* ALERTING */
/* TODO: some checks, if there's any work here */
if (i->qsig_data.calltransfer_onring) {
i->qsig_data.calltransfer_onring = 0;
send_feature_calltransfer(i);
}
break;
case 0x8002: /* CALL PROCEEDING */
break;
case 0x8003: /* PROGRESS */
break;
case 0x8005: /* SETUP */
break;
case 0x8007: /* CONNECT */
if (i->qsig_data.calltransfer) {
i->qsig_data.calltransfer = 0;
send_feature_calltransfer(i);
}
{
/* handle prior received Path Replacement */
if ((i->qsig_data.pr_propose_cid && i->qsig_data.pr_propose_pn) && i->qsig_data.pr_propose_sendback) {
unsigned char fac[CAPI_MAX_FACILITYDATAARRAY_SIZE];
cc_qsig_do_facility(fac, i->owner, NULL, 4, 0);
capi_sendf(NULL, 0, CAPI_INFO_REQ, i->PLCI, get_capi_MessageNumber(),
"()(()()()s)",
fac
);
i->qsig_data.pr_propose_sendback = 0;
ast_free(i->qsig_data.pr_propose_cid);
i->qsig_data.pr_propose_cid = NULL;
ast_free(i->qsig_data.pr_propose_pn);
i->qsig_data.pr_propose_pn = NULL;
i->qsig_data.pr_propose_sentback = 1;
}
}
break;
case 0x800d: /* SETUP ACK */
break;
case 0x800f: /* CONNECT ACK */
{
unsigned int qsiginvoke;
qsiginvoke = cc_qsig_handle_capi_facilityind( (unsigned char*) INFO_IND_INFOELEMENT(CMSG), i);
}
{
/* handle outbound Path Replacement */
if ((i->qsig_data.pr_propose_cid && i->qsig_data.pr_propose_pn) && i->qsig_data.pr_propose_doinboundbridge) {
unsigned char fac[CAPI_MAX_FACILITYDATAARRAY_SIZE];
cc_qsig_do_facility(fac, i->owner, NULL, 4, 0);
capi_sendf(NULL, 0, CAPI_INFO_REQ, i->PLCI, get_capi_MessageNumber(),
"()(()()()s)", fac );
i->qsig_data.pr_propose_sendback = 0;
ast_free(i->qsig_data.pr_propose_cid);
i->qsig_data.pr_propose_cid = NULL;
ast_free(i->qsig_data.pr_propose_pn);
i->qsig_data.pr_propose_pn = NULL;
i->qsig_data.pr_propose_sentback = 1;
i->qsig_data.pr_propose_doinboundbridge = 0;
}
}
break;
case 0x8045: /* DISCONNECT */
qsig_cleanup_channel(i);
break;
case 0x804d: /* RELEASE */
break;
case 0x805a: /* RELEASE COMPLETE */
qsig_cleanup_channel(i);
break;
case 0x8062: /* FACILITY */
break;
case 0x806e: /* NOTIFY */
break;
case 0x807b: /* INFORMATION */
break;
case 0x807d: /* STATUS */
break;
default:
break;
}
pbx_capi_qsig_post_handling(i);
return;
}
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