@ -144,12 +144,8 @@ int cc_qsig_encode_ecma_name_invoke(unsigned char * buf, unsigned int *idx, stru
invoke - > descr_type = - 1 ; /* Let others do the work: qsig_add_invoke */
invoke - > type = 0 ; /* Invoke Operation Number, if OID it's the last byte*/
/* HACK: */
if ( nametype )
invoke - > type = 2 ;
if ( namelen > 0 ) {
data [ dataidx + + ] = 0x80 ; /* We send only simple Name, Namepresentation allowed */
data [ dataidx + + ] = 0x80 | ( nametype % 4 ) ; /* We send only simple Name, Namepresentation allowed */
data [ dataidx + + ] = namelen ;
memcpy ( & data [ dataidx ] , namebuf , namelen ) ;
dataidx + = namelen ;
@ -416,6 +412,131 @@ void cc_qsig_encode_ecma_calltransfer(unsigned char * buf, unsigned int *idx, st
}
/*
* Decode Operation : 1.3 .12 .9 .12 ECMA / ISDN / CALLTRANSFER
*
* This function decodes the call transfer facility
*
* We create an invoke struct with the complete encoded invoke .
*
* parameters
* buf is pointer to facility array , not used now
* idx current idx in facility array , not used now
* invoke struct , which contains encoded data from facility
* i is pointer to capi channel
* returns
* transfer to destination number
*/
char * cc_qsig_decode_ecma_calltransfer ( struct cc_qsig_invokedata * invoke , struct capi_pvt * i )
{
unsigned int datalength ;
unsigned int seqlength = 0 ;
unsigned char * data = invoke - > data ;
int myidx = 0 ;
/* TODO: write more code */
char * ct_status_txt [ ] = { " ANSWERED " , " ALERTING " } ;
int ct_status = 0 ;
char ct_target [ ASN197ADE_NUMDIGITS_STRSIZE + 1 ] = { 0 } ;
char ct_name [ ASN197NO_NAME_STRSIZE + 1 ] = { " EMPTY " } ;
int ct_enddesignation = 0 ;
int ct_numberpresentation = 0 ;
unsigned int namelength = 0 ;
int temp = 0 ;
# define ct_err(x...) { cc_verbose(1, 1, VERBOSE_PREFIX_4 " * not Handling QSIG CALL TRANSFER - "x); return NULL; }
cc_verbose ( 1 , 1 , VERBOSE_PREFIX_4 " Handling QSIG CALL TRANSFER (id# %#x) \n " , invoke - > id ) ;
if ( data [ myidx + + ] ! = ( ASN1_SEQUENCE | ASN1_TC_UNIVERSAL | ASN1_TF_CONSTRUCTED ) ) { /* 0x30 */
/* We do not handle this, because it should start with an sequence tag */
ct_err ( " not a sequence \n " ) ;
}
/* This facility is encoded as SEQUENCE */
seqlength = data [ myidx + + ] ;
datalength = invoke - > datalen ;
if ( datalength < ( seqlength + 1 ) ) {
ct_err ( " buffer error \n " ) ;
}
if ( data [ myidx + + ] = = ASN1_ENUMERATED ) {
ct_enddesignation = cc_qsig_asn1_get_integer ( data , & myidx ) ;
} else {
ct_err ( " no endDesignation information. \n " ) ;
}
if ( data [ myidx ] = = ( ASN1_TC_CONTEXTSPEC | ASN1_TF_CONSTRUCTED | 0 ) ) { /* Parameter 0: partyNumber - transferee number */
myidx + + ;
temp = cc_qsig_asn197ade_get_partynumber ( ct_target , ASN197ADE_NUMDIGITS_STRSIZE + 1 , & myidx , data ) ;
if ( temp )
myidx + = temp + 1 ;
/* HACK: this has to be moved to _get_presentednumberscreened */
if ( data [ myidx + + ] = = ASN1_ENUMERATED ) {
ct_numberpresentation = cc_qsig_asn1_get_integer ( data , & myidx ) ;
} else {
ct_err ( " screeningIndicator is missing. \n " ) ;
return NULL ;
}
} else {
myidx + = 2 ; /* HACK: I've seen an IMPLICIT ade "numberNotAvailableDueToInterworking NULL" */
}
/* TODO: remove this code snippet, when it's 100% working */
/*
if ( data [ myidx + + ] = = ( ASN1_TC_CONTEXTSPEC | ASN1_TF_CONSTRUCTED | 0 ) ) { */ /* Parameter 0: partyNumber - transferee number */
/* if (!data[myidx++]) /* length = 0 */
/* ct_err("No destination received.\n");
if ( data [ myidx + + ] ! = ASN1_TC_CONTEXTSPEC )
ct_err ( " No destination received. \n " ) ;
temp = cc_qsig_asn1_get_string ( ( unsigned char * ) & ct_target , sizeof ( ct_target ) , & data [ myidx ] ) ;
if ( temp ) {
myidx + = temp + 1 ;
} else {
cc_verbose ( 1 , 1 , VERBOSE_PREFIX_4 " * not Handling QSIG CALL TRANSFER - partyNumber expected (%i) \n " , myidx ) ;
return NULL ;
}
if ( data [ myidx + + ] = = ASN1_ENUMERATED ) {
ct_numberpresentation = cc_qsig_asn1_get_integer ( data , & myidx ) ;
} else {
cc_verbose ( 1 , 1 , VERBOSE_PREFIX_4 " * not Handling QSIG CALL TRANSFER - wrong encoded #2. \n " ) ;
return NULL ;
}
} */
if ( myidx < datalength ) {
if ( data [ myidx ] = = ASN1_TC_APPLICATION ) {
/* ignore special Application Parameters - have no info about content */
myidx + + ;
cc_verbose ( 1 , 1 , VERBOSE_PREFIX_4 " * QSIG CALL TRANSFER - ignoring application data (%i bytes). \n " , ( int ) data [ myidx ] ) ;
myidx + = data [ myidx ] + 1 ;
}
}
if ( myidx < datalength ) {
if ( data [ myidx ] ! = ASN1_ENUMERATED ) { /* Maybe we get an name (OPTIONAL) */
myidx + = cc_qsig_asn197no_get_name ( ct_name , ASN197NO_NAME_STRSIZE + 1 , & namelength , & myidx , data ) ;
}
}
if ( myidx < datalength ) {
if ( data [ myidx + + ] = = ASN1_ENUMERATED ) { /* Call Status */
ct_status = cc_qsig_asn1_get_integer ( data , & myidx ) ;
}
}
cc_verbose ( 1 , 1 , VERBOSE_PREFIX_4 " * Got QSIG CALL TRANSFER endDesignation: %i partyNumber: %s (ScreeningInd: %i), partyName: \" %s \" , Call state: %s \n " , ct_enddesignation , ct_target , ct_numberpresentation , ct_name , ct_status_txt [ ct_status ] ) ;
return strdup ( ct_target ) ;
# undef ct_err
}
/*
* Encode Operation : 1.3 .12 .9 .99 ECMA / ISDN / SINGLESTEPCALLTRANSFER
MelwareDE
16 years ago