Adding some new files for handling facility ies

git-svn-id: https://origsvn.digium.com/svn/libpri/trunk@151 2fbb986a-6c06-0410-b554-c9c1f0a7f128

pri_facility.c

@@ -0,0 +1,70 @@
+/* 
+   Routines for dealing with facility messages and their respective
+   components (ROSE)
+
+   by Matthew Fredrickson <creslin@digium.com>
+   Copyright (C) 2004 Digium, Inc
+*/
+
+#include "libpri.h"
+#include "pri_internal.h"
+#include "pri_q921.h"
+#include "pri_q931.h"
+#include "pri_facility.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+int rose_invoke_decode(q931_call *call, unsigned char *data, int len)
+{
+	int i = 0;
+	unsigned char *vdata = data;
+	struct rose_component *comp = NULL;
+
+	if (len <= 0) return -1;
+
+	/* Invoke ID stuff */
+	if (&vdata[i])
+		comp = (struct rose_component*)&vdata[i];
+	else return -1;
+
+	if (i+1 >= len) return -1;
+	if (comp->type && comp->type != ASN1_INTEGER) {
+		pri_message("Don't know what to do if first ROSE component is of type 0x%x\n",comp->type);
+		return -1;
+	}
+	i += comp->len + 2;
+
+	/* Operation Tag */
+	if (&vdata[i])
+		comp = (struct rose_component*)&vdata[i];
+	else return -1;
+
+	if (i+1 >= len) return -1;
+	if (comp->type && comp->type != ASN1_INTEGER) {
+		pri_message("Don't know what to do if second ROSE component is of type 0x%x\n",comp->type);
+		return -1;
+	}
+	i += comp->len + 2;
+
+	if (i >= len) 
+		return -1;
+
+	/* Arguement Tag */
+	if (&vdata[i])
+		comp = (struct rose_component*)&vdata[i];
+	else return -1;
+
+	if (comp->type) {
+		switch (comp->type) {
+			case ROSE_NAME_PRESENTATION_ALLOWED_SIMPLE:
+				memcpy(call->callername, comp->data, comp->len);
+				call->callername[comp->len] = 0;
+				return 0;
+			default:
+				pri_message("Do not handle argument of type 0x%X\n", comp->type);
+				return -1;
+		}
+	} else return -1;
+}
+

pri_facility.h

@@ -0,0 +1,78 @@
+/*
+   This file contains all data structures and definitions associated
+   with facility message usage and the ROSE components included
+   within those messages.
+
+   by Matthew Fredrickson <creslin@digium.com>
+   Copyright (C) Digium, Inc. 2004
+*/
+
+#ifndef _PRI_FACILITY_H
+#define _PRI_FACILITY_H
+
+/* Protocol Profile field */
+#define ROSE_NETWORK_EXTENSION 0x9F
+
+/* Argument values */
+#define ROSE_NAME_PRESENTATION_ALLOWED_SIMPLE 0x80
+#define ROSE_NAME_PRESENTATION_RESTRICTED_NULL 0x87
+#define ROSE_NAME_NOT_AVAIL 0x84
+
+/* Divert arguments */
+#define ROSE_DIVERTING_LEG_INFORMATION2 0x15
+
+/* Component types */
+#define COMP_TYPE_INVOKE 0xA1
+#define COMP_TYPE_INTERPRETATION 0x8B
+#define COMP_TYPE_NETWORK_PROTOCOL_PROFILE 0x92
+#define COMP_TYPE_RETURN_RESULT 0xA2
+#define COMP_TYPE_RETURN_ERROR 0xA3
+#define COMP_TYPE_REJECT 0xA4
+#define COMP_TYPE_NFE 0xAA
+
+
+/* ROSE definitions and data structures */
+#define INVOKE_IDENTIFIER 0x02
+#define INVOKE_LINKED_IDENTIFIER 0x80
+#define INVOKE_NULL_IDENTIFIER __USE_ASN1_NULL
+
+/* ASN.1 Data types */
+#define ASN1_BOOLEAN 0x01
+#define ASN1_INTEGER 0x02
+#define ASN1_BITSTRING 0x03
+#define ASN1_OCTETSTRING 0x04
+#define ASN1_NULL 0x05
+#define ASN1_OBJECTIDENTIFIER 0x06
+#define ASN1_OBJECTDESCRIPTER 0x07
+#define ASN1_UTF8STRING 0x0c
+#define ASN1_SEQUENCE 0x10
+#define ASN1_SET 0x11
+#define ASN1_NUMERICSTRING 0x12
+#define ASN1_PRINTABLESTRING 0x13
+#define ASN1_TELETEXSTRING 0x14
+#define ASN1_IA5STRING 0x16
+#define ASN1_UTCTIME 0x17
+#define ASN1_GENERALIZEDTIME 0x18
+
+
+#define INVOKE_OPERATION_INT __USE_ASN1_INTEGER
+#define INVOKE_OBJECT_ID __USE_ASN1_OBJECTIDENTIFIER
+
+/* Divert cause */
+#define DIVERT_REASON_UNKNOWN 0x00
+#define DIVERT_REASON_CFU 0x01
+#define DIVERT_REASON_CFB 0x02
+#define DIVERT_REASON_CFNR 0x03
+
+struct rose_component {
+        u_int8_t type;
+        u_int8_t len;
+        u_int8_t data[0];
+};
+
+
+/* Decoder fo the invoke part of a ROSE request
+   It currently only support calling name decode */
+extern int rose_invoke_decode(struct q931_call *call, unsigned char *data, int len);
+
+#endif /* _PRI_FACILITY_H */