QSIG:

- added support for rerouting informations on incoming calls
2007-03-25 17:03:19 +00:00 · 2007-03-25 17:03:19 +00:00 · 6bba2bbfc6
parent 3b730f1042
commit 6bba2bbfc6
5 changed files with 83 additions and 14 deletions
--- a/README.qsig
+++ b/README.qsig
@ -48,10 +48,17 @@ The QSIG support includes:
    QSIG_LI2_ODIVNAME		original diverting name

    at the moment only incoming handling is supported
+- Possibility to inform QSIG switch about call from public network
+    If you set variable QSIG_SETUP=X then the QSIG switch on the other side will know, 
+    this call source is public network - you will get different ring tone, etc.
+    In dialplan use:    Set(__QSIG_SETUP=X)  command.
+    The leading "__" tells asterisk, to export this variable to the outgoing channel and
+    its subchannels

 Future Targets:
 ===============
 - check code for buffer overflows
+- Call Transfer
 - Path Replacement
 - CCBS
 - AOC
@ -79,8 +86,8 @@ Here we go with new configuration
 Set qsig to one of the following values, which corresponds to your configuration.

 0	QSIG turned off
-1	Alcatel (4400 & Enterprise - Maybe OXO/4200) ECMA variant
-2	Siemens HiPath 4000 ECMAV2
+1	Alcatel (4400 & Enterprise - Maybe OXO/4200) ECMA (wrongly named ECMA - it is ETSI) variant
+2	Siemens HiPath 4000 ECMAV2 & Alcatel 4400/Enterprise in ISO mode


 ToDo List:
--- a/chan_capi.c
+++ b/chan_capi.c
@ -130,6 +130,7 @@ static char *commandtdesc = "CAPI command interface.\n"
 "\"params\" can be:\n"
 "early B3:\"b\"=always, \"B\"=on successful calls only\n"
 "\"d\":use callerID from capi.conf, \"o\":overlap sending number\n"
+"\n\"q\":disable QSIG functions on outgoing call\n"
 "\n"
 "capicommand() where () can be:\n"
 "\"progress\" send progress (for NT mode)\n"
@ -1589,7 +1590,7 @@ static int pbx_capi_call(struct ast_channel *c, char *idest, int timeout)

 	if (doqsig) {
 		unsigned char *facilityarray = alloca(CAPI_MAX_FACILITYDATAARRAY_SIZE);
-		cc_qsig_add_call_setup_data(facilityarray, i);
+		cc_qsig_add_call_setup_data(facilityarray, i, c);
 		CONNECT_REQ_FACILITYDATAARRAY(&CMSG) = facilityarray;
 	}

--- a/chan_capi_qsig.h
+++ b/chan_capi_qsig.h
@ -145,7 +145,9 @@ extern signed int cc_qsig_check_invoke(unsigned char *data, int *idx);
 extern signed int cc_qsig_get_invokeid(unsigned char *data, int *idx, struct cc_qsig_invokedata *invoke);
 extern signed int cc_qsig_fill_invokestruct(unsigned char *data, int *idx, struct cc_qsig_invokedata *invoke, int apduval);
 extern unsigned int cc_qsig_handle_capiind(unsigned char *data, struct capi_pvt *i);
-extern unsigned int cc_qsig_add_call_setup_data(unsigned char *data, struct capi_pvt *i);
+extern unsigned int cc_qsig_add_call_setup_data(unsigned char *data, struct capi_pvt *i, struct  ast_channel *c);
+extern unsigned int cc_qsig_add_call_facility_data(unsigned char *data, struct capi_pvt *i, int facility);
+
 extern signed int cc_qsig_identifyinvoke(struct cc_qsig_invokedata *invoke, int protocol);
 extern unsigned int cc_qsig_handle_invokeoperation(int invokeident, struct cc_qsig_invokedata *invoke, struct capi_pvt *i);

@ -154,7 +156,7 @@ extern unsigned int cc_qsig_handle_invokeoperation(int invokeident, struct cc_qs
 */

 extern void cc_qsig_op_ecma_isdn_namepres(struct cc_qsig_invokedata *invoke, struct capi_pvt *i);
-extern int cc_qsig_encode_ecma_name_invoke(unsigned char * buf, unsigned int *idx, struct cc_qsig_invokedata *invoke, struct capi_pvt *i);
+extern int cc_qsig_encode_ecma_name_invoke(unsigned char * buf, unsigned int *idx, struct cc_qsig_invokedata *invoke, struct capi_pvt *i, int nametype);
 extern void cc_qsig_op_ecma_isdn_leginfo2(struct cc_qsig_invokedata *invoke, struct capi_pvt *i);

 #endif
--- a/chan_capi_qsig_core.c
+++ b/chan_capi_qsig_core.c
@ -20,6 +20,7 @@
 		
 #include <asterisk/channel.h>
 #include <asterisk/options.h>
+#include <asterisk/pbx.h>
 #include "chan_capi20.h"
 #include "chan_capi.h"
 #include "chan_capi_qsig.h"
@ -555,18 +556,73 @@ unsigned int cc_qsig_handle_capiind(unsigned char *data, struct capi_pvt *i)
 /*
 * Handles outgoing Facilies on Call SETUP
 */
-unsigned int cc_qsig_add_call_setup_data(unsigned char *data, struct capi_pvt *i)
+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;
+	
+	const unsigned char xprogress[] = {0x1e,0x02,0xa0,0x90};
+	char *p = NULL;
+	int add_externalinfo = 0;
+			
+	if ((p = 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_verbose(1, 1, VERBOSE_PREFIX_4, "Sending QSIG external PROGRESS IE.\n");
+					add_externalinfo = 1;
+					while (((char)*p!=',')&&(*p)) 	/* Remove next values until separator (,), stop if zero */
+						p++;
+					break;
+				default:
+					cc_log(LOG_WARNING, "Unknown parameter '%c' in QSIG_SETUP, ignoring.\n", *p);
+					while (((char)*p!=',')&&(*p)) 
+						p++;
+			}
+			if (*p)	/* this is not the end */
+				p++;
+		}
+	}
+	
+/*mg:remember me	switch (i->doqsig) {*/
+	cc_qsig_build_facility_struct(data, &dataidx, APDUINTERPRETATION_IGNORE, &nfe);
+	cc_qsig_encode_ecma_name_invoke(data, &dataidx, &invoke, i, 0);
+	cc_qsig_add_invoke(data, &dataidx, &invoke);
+	
+	if (add_externalinfo) {
+		/* add PROGRESS INDICATOR for external calls*/
+		memcpy(&data[dataidx], xprogress, sizeof(xprogress));
+		data[0] += data[0] + sizeof(xprogress);
+	}
+/*	}*/
+	return 0;
+}
+
+/*
+ * Handles outgoing Facilies on Call
+ */
+unsigned int cc_qsig_add_call_facility_data(unsigned char *data, struct capi_pvt *i, int facility)
 {
 	/* TODO: Check buffers */
 	struct cc_qsig_invokedata invoke;
 	struct cc_qsig_nfe nfe;
 	unsigned int dataidx;
 	
-/*mg:remember me	switch (i->doqsig) {*/
+	/*mg:remember me	switch (i->doqsig) {*/
 	cc_qsig_build_facility_struct(data, &dataidx, APDUINTERPRETATION_IGNORE, &nfe);
-	cc_qsig_encode_ecma_name_invoke(data, &dataidx, &invoke, i);
-	cc_qsig_add_invoke(data, &dataidx, &invoke);
-/*	}*/
+	switch(facility) {
+		case 1:	/* HACK:  Test only */
+			cc_qsig_encode_ecma_name_invoke(data, &dataidx, &invoke, i, 1);
+			cc_qsig_add_invoke(data, &dataidx, &invoke);
+			break;
+		default:
+			break;
+	}
+	/*	}*/
 	return 0;
 }

--- a/chan_capi_qsig_ecma.c
+++ b/chan_capi_qsig_ecma.c
@ -78,7 +78,7 @@ void cc_qsig_op_ecma_isdn_namepres(struct cc_qsig_invokedata *invoke, struct cap
 * returns
 * 	always 0
 */
-int cc_qsig_encode_ecma_name_invoke(unsigned char * buf, unsigned int *idx, struct cc_qsig_invokedata *invoke, struct capi_pvt *i)
+int cc_qsig_encode_ecma_name_invoke(unsigned char * buf, unsigned int *idx, struct cc_qsig_invokedata *invoke, struct capi_pvt *i, int nametype)
 {
 	const unsigned char oid[] = {0x2b,0x0c,0x09,0x00};	/* 1.3.12.9.0 */
 	int oid_len = sizeof(oid);
@ -86,7 +86,6 @@ int cc_qsig_encode_ecma_name_invoke(unsigned char * buf, unsigned int *idx, stru
 	unsigned char data[255];
 	int dataidx = 0;
 	int namelen = 0;
-	/*TODO: write something */
 	
 	if (i->owner->cid.cid_name)
 		namelen = strlen(i->owner->cid.cid_name);
@ -111,6 +110,10 @@ int cc_qsig_encode_ecma_name_invoke(unsigned char * buf, unsigned int *idx, stru
 	invoke->oid_len = oid_len;
 	memcpy(invoke->oid_bin, oid, oid_len);
 	
+	/* HACK: */
+	if (nametype)
+		invoke->oid_bin[3] = 2;
+	
 	if (namelen>0) {
 		data[dataidx++] = 0x80;	/* We send only simple Name, Namepresentation allowed */
 		data[dataidx++] = namelen;
@ -133,8 +136,8 @@ int cc_qsig_encode_ecma_name_invoke(unsigned char * buf, unsigned int *idx, stru
 /* 
 * Handle Operation: 1.3.12.9.21		ECMA/ISDN/LEG_INFORMATION2
 * 
- * This function decodes the namepresentation facility
- * The name will be copied in the cid.cid_name field of the asterisk channel struct
+ * This function decodes the LEG INFORMATION2 facility
+ * The datas will be copied in the some Asterisk channel variables -> see README.qsig
 *
 * parameters
 *	invoke	struct, which contains encoded data from facility