From 8a5895191f4865b6bb3080c0761b27d780ebf50d Mon Sep 17 00:00:00 2001 From: Matthew Fredrickson Date: Wed, 27 Oct 2004 20:44:39 +0000 Subject: [PATCH] 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 | 70 ++++++++++++++++++++++++++++++++++++++++++++ pri_facility.h | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 148 insertions(+) create mode 100755 pri_facility.c create mode 100755 pri_facility.h diff --git a/pri_facility.c b/pri_facility.c new file mode 100755 index 0000000..2d38c16 --- /dev/null +++ b/pri_facility.c @@ -0,0 +1,70 @@ +/* + Routines for dealing with facility messages and their respective + components (ROSE) + + by Matthew Fredrickson + 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 +#include + +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; +} + diff --git a/pri_facility.h b/pri_facility.h new file mode 100755 index 0000000..cbfd46c --- /dev/null +++ b/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 + 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 */