handle the crv flag

git-svn-id: http://svn.openzap.org/svn/openzap/trunk@249 a93c3328-9c30-0410-af19-c9cd2b2d52af

libs/freetdm/src/isdn/Q931.c

@@ -329,6 +329,7 @@ L3INT Q931Rx23(Q931_TrunkInfo_t *pTrunk, L3UCHAR * buf, L3INT Size)
     m->ProtDisc = Mes[IOff++];
 
     /* CRV */
+	m->CRVFlag = Mes[IOff + 1] & 0x80;
     m->CRV = Q931Uie_CRV(pTrunk, Mes, m->buf, &IOff, &ISize);
 
     /* Message Type */

libs/freetdm/src/isdn/Q931ie.c

@@ -1307,12 +1307,12 @@ L3USHORT Q931Uie_CRV(Q931_TrunkInfo_t *pTrunk, L3UCHAR *IBuf, L3UCHAR *OBuf, L3I
 
     if(l == 1) /* One octet CRV */
     {
-        CRV = IBuf[Octet];
+        CRV = IBuf[Octet] & 0x7F;
         Octet++;
     }
     else if(l==2) /* two octet CRV */
     {
-        CRV = IBuf[Octet] << 8;
+        CRV = (IBuf[Octet] << 8) & 0x7F;
         CRV = CRV + IBuf[Octet+1];
         Octet += 2;
     }

libs/freetdm/src/isdn/include/Q931.h

@@ -390,6 +390,7 @@ typedef struct
     L3UINT			Size;           /* Size of message in bytes             */
     L3UCHAR         ProtDisc;       /* Protocol Discriminator               */
     L3UCHAR         MesType;        /* Message type                         */
+    L3UCHAR         CRVFlag;        /* Call reference value flag            */
     L3INT           CRV;            /* Call reference value                 */
 }Q931mes_Header;
 
@@ -406,6 +407,7 @@ typedef struct
     L3UINT			Size;           /* Size of message in bytes             */
     L3UCHAR         ProtDisc;       /* Protocol Discriminator               */
     L3UCHAR         MesType;        /* Message type                         */
+    L3UCHAR         CRVFlag;        /* Call reference value flag            */
     L3INT           CRV;            /* Call reference value                 */
 
     ie              Shift;

libs/freetdm/src/isdn/nationalmes.c

@@ -158,7 +158,7 @@ L3INT nationalPmes_Setup(Q931_TrunkInfo_t *pTrunk, Q931mes_Generic *IBuf, L3INT
 
 	OBuf[Octet++]	= pMes->ProtDisc;		/* Protocol discriminator		*/
 	OBuf[Octet++]	= 2;					/* length is 2 octets			*/
-	OBuf[Octet++]	= (L3UCHAR)(pMes->CRV>>8);	/* msb						*/
+	OBuf[Octet++]	= (L3UCHAR)(pMes->CRV>>8) | (pMes->CRVFlag << 7);	/* msb						*/
 	OBuf[Octet++]	= (L3UCHAR)(pMes->CRV);	/* lsb							*/
 	OBuf[Octet++]	= pMes->MesType;		/* message header				*/