8fa183a4bc
git-svn-id: https://origsvn.digium.com/svn/libpri/trunk@286 2fbb986a-6c06-0410-b554-c9c1f0a7f128
1480 lines
47 KiB
C
1480 lines
47 KiB
C
/*
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* libpri: An implementation of Primary Rate ISDN
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*
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* Written by Matthew Fredrickson <creslin@digium.com>
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*
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* Copyright (C) 2004-2005, Digium
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include "compat.h"
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#include "libpri.h"
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#include "pri_internal.h"
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#include "pri_q921.h"
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#include "pri_q931.h"
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#include "pri_facility.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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static char *asn1id2text(int id)
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{
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static char data[32];
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static char *strings[] = {
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"none",
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"Boolean",
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"Integer",
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"Bit String",
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"Octet String",
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"NULL",
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"Object Identifier",
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"Object Descriptor",
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"External Reference",
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"Real Number",
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"Enumerated",
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"Embedded PDV",
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"UTF-8 String",
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"Relative Object ID",
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"Reserved (0e)",
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"Reserved (0f)",
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"Sequence",
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"Set",
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"Numeric String",
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"Printable String",
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"Tele-Text String",
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"IA-5 String",
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"UTC Time",
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"Generalized Time",
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};
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if (id > 0 && id <= 0x18) {
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return strings[id];
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} else {
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sprintf(data, "Unknown (%02x)", id);
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return data;
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}
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}
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static int asn1_dumprecursive(struct pri *pri, void *comp_ptr, int len, int level)
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{
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unsigned char *vdata = (unsigned char *)comp_ptr;
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struct rose_component *comp;
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int i = 0;
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int j, k, l;
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int clen = 0;
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while (len > 0) {
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GET_COMPONENT(comp, i, vdata, len);
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pri_message(pri, "%*s%02X %04X", 2 * level, "", comp->type, comp->len);
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if ((comp->type == 0) && (comp->len == 0))
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return clen + 2;
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if ((comp->type & ASN1_PC_MASK) == ASN1_PRIMITIVE) {
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for (j = 0; j < comp->len; ++j)
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pri_message(pri, " %02X", comp->data[j]);
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}
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if ((comp->type & ASN1_CLAN_MASK) == ASN1_UNIVERSAL) {
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switch (comp->type & ASN1_TYPE_MASK) {
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case 0:
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pri_message(pri, " (none)");
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break;
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case ASN1_BOOLEAN:
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pri_message(pri, " (BOOLEAN: %d)", comp->data[0]);
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break;
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case ASN1_INTEGER:
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for (k = l = 0; k < comp->len; ++k)
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l = (l << 8) | comp->data[k];
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pri_message(pri, " (INTEGER: %d)", l);
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break;
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case ASN1_BITSTRING:
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pri_message(pri, " (BITSTRING:");
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for (k = 0; k < comp->len; ++k)
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pri_message(pri, " %02x", comp->data[k]);
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pri_message(pri, ")");
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break;
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case ASN1_OCTETSTRING:
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pri_message(pri, " (OCTETSTRING:");
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for (k = 0; k < comp->len; ++k)
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pri_message(pri, " %02x", comp->data[k]);
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pri_message(pri, ")");
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break;
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case ASN1_NULL:
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pri_message(pri, " (NULL)");
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break;
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case ASN1_OBJECTIDENTIFIER:
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pri_message(pri, " (OBJECTIDENTIFIER:");
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for (k = 0; k < comp->len; ++k)
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pri_message(pri, " %02x", comp->data[k]);
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pri_message(pri, ")");
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break;
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case ASN1_ENUMERATED:
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for (k = l = 0; k < comp->len; ++k)
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l = (l << 8) | comp->data[k];
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pri_message(pri, " (ENUMERATED: %d)", l);
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break;
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case ASN1_SEQUENCE:
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pri_message(pri, " (SEQUENCE)");
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break;
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default:
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pri_message(pri, " (component %02x - %s)", comp->type, asn1id2text(comp->type & ASN1_TYPE_MASK));
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break;
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}
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}
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else if ((comp->type & ASN1_CLAN_MASK) == ASN1_CONTEXT_SPECIFIC) {
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pri_message(pri, " (CONTEXT SPECIFIC [%d])", comp->type & ASN1_TYPE_MASK);
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}
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else {
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pri_message(pri, " (component %02x)", comp->type);
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}
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pri_message(pri, "\n");
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if ((comp->type & ASN1_PC_MASK) == ASN1_CONSTRUCTOR)
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j = asn1_dumprecursive(pri, comp->data, (comp->len ? comp->len : INT_MAX), level+1);
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else
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j = comp->len;
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j += 2;
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len -= j;
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vdata += j;
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clen += j;
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}
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return clen;
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}
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int asn1_dump(struct pri *pri, void *comp, int len)
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{
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return asn1_dumprecursive(pri, comp, len, 0);
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}
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static unsigned char get_invokeid(struct pri *pri)
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{
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return ++pri->last_invoke;
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}
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struct addressingdataelements_presentednumberunscreened {
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char partyaddress[21];
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char partysubaddress[21];
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int npi;
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int ton;
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int pres;
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};
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#define PRI_CHECKOVERFLOW(size) \
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if (msgptr - message + (size) >= sizeof(message)) { \
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*msgptr = '\0'; \
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pri_message(pri, "%s", message); \
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msgptr = message; \
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}
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static void dump_apdu(struct pri *pri, unsigned char *c, int len)
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{
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#define MAX_APDU_LENGTH 255
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static char hexs[16] = "0123456789ABCDEF";
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int i;
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char message[(2 + MAX_APDU_LENGTH * 3 + 6 + MAX_APDU_LENGTH + 3)] = ""; /* please adjust here, if you make changes below! */
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char *msgptr;
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msgptr = message;
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*msgptr++ = ' ';
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*msgptr++ = '[';
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for (i=0; i<len; i++) {
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PRI_CHECKOVERFLOW(3);
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*msgptr++ = ' ';
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*msgptr++ = hexs[(c[i] >> 4) & 0x0f];
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*msgptr++ = hexs[(c[i]) & 0x0f];
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}
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PRI_CHECKOVERFLOW(6);
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strcpy(msgptr, " ] - [");
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msgptr += strlen(msgptr);
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for (i=0; i<len; i++) {
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PRI_CHECKOVERFLOW(1);
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*msgptr++ = ((c[i] < ' ') || (c[i] > '~')) ? '.' : c[i];
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}
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PRI_CHECKOVERFLOW(2);
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*msgptr++ = ']';
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*msgptr++ = '\n';
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*msgptr = '\0';
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pri_message(pri, "%s", message);
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}
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#undef PRI_CHECKOVERFLOW
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int redirectingreason_from_q931(struct pri *pri, int redirectingreason)
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{
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switch(pri->switchtype) {
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case PRI_SWITCH_QSIG:
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switch(redirectingreason) {
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case PRI_REDIR_UNKNOWN:
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return QSIG_DIVERT_REASON_UNKNOWN;
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case PRI_REDIR_FORWARD_ON_BUSY:
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return QSIG_DIVERT_REASON_CFB;
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case PRI_REDIR_FORWARD_ON_NO_REPLY:
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return QSIG_DIVERT_REASON_CFNR;
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case PRI_REDIR_UNCONDITIONAL:
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return QSIG_DIVERT_REASON_CFU;
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case PRI_REDIR_DEFLECTION:
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case PRI_REDIR_DTE_OUT_OF_ORDER:
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case PRI_REDIR_FORWARDED_BY_DTE:
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pri_message(pri, "!! Don't know how to convert Q.931 redirection reason %d to Q.SIG\n", redirectingreason);
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/* Fall through */
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default:
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return QSIG_DIVERT_REASON_UNKNOWN;
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}
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default:
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switch(redirectingreason) {
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case PRI_REDIR_UNKNOWN:
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return Q952_DIVERT_REASON_UNKNOWN;
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case PRI_REDIR_FORWARD_ON_BUSY:
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return Q952_DIVERT_REASON_CFB;
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case PRI_REDIR_FORWARD_ON_NO_REPLY:
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return Q952_DIVERT_REASON_CFNR;
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case PRI_REDIR_DEFLECTION:
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return Q952_DIVERT_REASON_CD;
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case PRI_REDIR_UNCONDITIONAL:
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return Q952_DIVERT_REASON_CFU;
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case PRI_REDIR_DTE_OUT_OF_ORDER:
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case PRI_REDIR_FORWARDED_BY_DTE:
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pri_message(pri, "!! Don't know how to convert Q.931 redirection reason %d to Q.952\n", redirectingreason);
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/* Fall through */
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default:
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return Q952_DIVERT_REASON_UNKNOWN;
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}
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}
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}
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static int redirectingreason_for_q931(struct pri *pri, int redirectingreason)
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{
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switch(pri->switchtype) {
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case PRI_SWITCH_QSIG:
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switch(redirectingreason) {
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case QSIG_DIVERT_REASON_UNKNOWN:
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return PRI_REDIR_UNKNOWN;
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case QSIG_DIVERT_REASON_CFU:
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return PRI_REDIR_UNCONDITIONAL;
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case QSIG_DIVERT_REASON_CFB:
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return PRI_REDIR_FORWARD_ON_BUSY;
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case QSIG_DIVERT_REASON_CFNR:
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return PRI_REDIR_FORWARD_ON_NO_REPLY;
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default:
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pri_message(pri, "!! Unknown Q.SIG diversion reason %d\n", redirectingreason);
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return PRI_REDIR_UNKNOWN;
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}
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default:
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switch(redirectingreason) {
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case Q952_DIVERT_REASON_UNKNOWN:
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return PRI_REDIR_UNKNOWN;
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case Q952_DIVERT_REASON_CFU:
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return PRI_REDIR_UNCONDITIONAL;
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case Q952_DIVERT_REASON_CFB:
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return PRI_REDIR_FORWARD_ON_BUSY;
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case Q952_DIVERT_REASON_CFNR:
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return PRI_REDIR_FORWARD_ON_NO_REPLY;
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case Q952_DIVERT_REASON_CD:
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return PRI_REDIR_DEFLECTION;
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case Q952_DIVERT_REASON_IMMEDIATE:
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pri_message(pri, "!! Dont' know how to convert Q.952 diversion reason IMMEDIATE to PRI analog\n");
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return PRI_REDIR_UNKNOWN; /* ??? */
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default:
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pri_message(pri, "!! Unknown Q.952 diversion reason %d\n", redirectingreason);
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return PRI_REDIR_UNKNOWN;
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}
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}
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}
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int typeofnumber_from_q931(struct pri *pri, int ton)
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{
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switch(ton) {
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case PRI_TON_INTERNATIONAL:
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return Q932_TON_INTERNATIONAL;
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case PRI_TON_NATIONAL:
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return Q932_TON_NATIONAL;
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case PRI_TON_NET_SPECIFIC:
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return Q932_TON_NET_SPECIFIC;
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case PRI_TON_SUBSCRIBER:
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return Q932_TON_SUBSCRIBER;
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case PRI_TON_ABBREVIATED:
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return Q932_TON_ABBREVIATED;
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case PRI_TON_RESERVED:
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default:
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pri_message(pri, "!! Unsupported Q.931 TypeOfNumber value (%d)\n", ton);
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/* fall through */
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case PRI_TON_UNKNOWN:
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return Q932_TON_UNKNOWN;
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}
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}
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static int typeofnumber_for_q931(struct pri *pri, int ton)
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{
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switch (ton) {
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case Q932_TON_UNKNOWN:
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return PRI_TON_UNKNOWN;
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case Q932_TON_INTERNATIONAL:
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return PRI_TON_INTERNATIONAL;
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case Q932_TON_NATIONAL:
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return PRI_TON_NATIONAL;
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case Q932_TON_NET_SPECIFIC:
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return PRI_TON_NET_SPECIFIC;
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case Q932_TON_SUBSCRIBER:
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return PRI_TON_SUBSCRIBER;
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case Q932_TON_ABBREVIATED:
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return PRI_TON_ABBREVIATED;
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default:
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pri_message(pri, "!! Invalid Q.932 TypeOfNumber %d\n", ton);
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return PRI_TON_UNKNOWN;
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}
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}
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int asn1_name_decode(void * data, int len, char *namebuf, int buflen)
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{
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struct rose_component *comp = (struct rose_component*)data;
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int datalen = 0, res = 0;
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if (comp->len == ASN1_LEN_INDEF) {
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datalen = strlen((char *)comp->data);
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res = datalen + 2;
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} else
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datalen = res = comp->len;
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if (datalen > buflen) {
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/* Truncate */
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datalen = buflen;
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}
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memcpy(namebuf, comp->data, datalen);
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return res + 2;
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}
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int asn1_string_encode(unsigned char asn1_type, void *data, int len, int max_len, void *src, int src_len)
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{
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struct rose_component *comp = NULL;
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if (len < 2 + src_len)
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return -1;
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if (max_len && (src_len > max_len))
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src_len = max_len;
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comp = (struct rose_component *)data;
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comp->type = asn1_type;
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comp->len = src_len;
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memcpy(comp->data, src, src_len);
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return 2 + src_len;
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}
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int asn1_copy_string(char * buf, int buflen, struct rose_component *comp)
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{
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int res;
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int datalen;
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if ((comp->len > buflen) && (comp->len != ASN1_LEN_INDEF))
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return -1;
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if (comp->len == ASN1_LEN_INDEF) {
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datalen = strlen((char*)comp->data);
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res = datalen + 2;
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} else
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res = datalen = comp->len;
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memcpy(buf, comp->data, datalen);
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buf[datalen] = 0;
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return res;
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}
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static int rose_number_digits_decode(struct pri *pri, q931_call *call, unsigned char *data, int len, struct addressingdataelements_presentednumberunscreened *value)
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{
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int i = 0;
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struct rose_component *comp = NULL;
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unsigned char *vdata = data;
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int datalen = 0;
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int res = 0;
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do {
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GET_COMPONENT(comp, i, vdata, len);
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CHECK_COMPONENT(comp, ASN1_NUMERICSTRING, "Don't know what to do with PublicPartyNumber ROSE component type 0x%x\n");
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if(comp->len > 20 && comp->len != ASN1_LEN_INDEF) {
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pri_message(pri, "!! Oversized NumberDigits component (%d)\n", comp->len);
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return -1;
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}
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if (comp->len == ASN1_LEN_INDEF) {
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datalen = strlen((char *)comp->data);
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res = datalen + 2;
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} else
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res = datalen = comp->len;
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memcpy(value->partyaddress, comp->data, datalen);
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value->partyaddress[datalen] = '\0';
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return res + 2;
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}
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while(0);
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return -1;
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}
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static int rose_public_party_number_decode(struct pri *pri, q931_call *call, unsigned char *data, int len, struct addressingdataelements_presentednumberunscreened *value)
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{
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int i = 0;
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struct rose_component *comp = NULL;
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unsigned char *vdata = data;
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int ton;
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int res = 0;
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if (len < 2)
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return -1;
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do {
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GET_COMPONENT(comp, i, vdata, len);
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CHECK_COMPONENT(comp, ASN1_ENUMERATED, "Don't know what to do with PublicPartyNumber ROSE component type 0x%x\n");
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ASN1_GET_INTEGER(comp, ton);
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NEXT_COMPONENT(comp, i);
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ton = typeofnumber_for_q931(pri, ton);
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res = rose_number_digits_decode(pri, call, &vdata[i], len-i, value);
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if (res < 0)
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return -1;
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value->ton = ton;
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return res + 3;
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} while(0);
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return -1;
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}
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static int rose_address_decode(struct pri *pri, q931_call *call, unsigned char *data, int len, struct addressingdataelements_presentednumberunscreened *value)
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{
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int i = 0;
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struct rose_component *comp = NULL;
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unsigned char *vdata = data;
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int res = 0;
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do {
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GET_COMPONENT(comp, i, vdata, len);
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switch(comp->type) {
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case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_0): /* [0] unknownPartyNumber */
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res = rose_number_digits_decode(pri, call, comp->data, comp->len, value);
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if (res < 0)
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return -1;
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value->npi = PRI_NPI_UNKNOWN;
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value->ton = PRI_TON_UNKNOWN;
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break;
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case (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_0): /* [0] unknownPartyNumber */
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res = asn1_copy_string(value->partyaddress, sizeof(value->partyaddress), comp);
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if (res < 0)
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return -1;
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value->npi = PRI_NPI_UNKNOWN;
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value->ton = PRI_TON_UNKNOWN;
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break;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_1): /* [1] publicPartyNumber */
|
|
res = rose_public_party_number_decode(pri, call, comp->data, comp->len, value);
|
|
if (res < 0)
|
|
return -1;
|
|
value->npi = PRI_NPI_E163_E164;
|
|
break;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_2): /* [2] nsapEncodedNumber */
|
|
pri_message(pri, "!! NsapEncodedNumber isn't handled\n");
|
|
return -1;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_3): /* [3] dataPartyNumber */
|
|
if(rose_number_digits_decode(pri, call, comp->data, comp->len, value))
|
|
return -1;
|
|
value->npi = PRI_NPI_X121 /* ??? */;
|
|
value->ton = PRI_TON_UNKNOWN /* ??? */;
|
|
pri_message(pri, "!! dataPartyNumber isn't handled\n");
|
|
return -1;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_4): /* [4] telexPartyNumber */
|
|
res = rose_number_digits_decode(pri, call, comp->data, comp->len, value);
|
|
if (res < 0)
|
|
return -1;
|
|
value->npi = PRI_NPI_F69 /* ??? */;
|
|
value->ton = PRI_TON_UNKNOWN /* ??? */;
|
|
pri_message(pri, "!! telexPartyNumber isn't handled\n");
|
|
return -1;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_5): /* [5] priavePartyNumber */
|
|
pri_message(pri, "!! privatePartyNumber isn't handled\n");
|
|
value->npi = PRI_NPI_PRIVATE;
|
|
return -1;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_8): /* [8] nationalStandardPartyNumber */
|
|
res = rose_number_digits_decode(pri, call, comp->data, comp->len, value);
|
|
if (res < 0)
|
|
return -1;
|
|
value->npi = PRI_NPI_NATIONAL;
|
|
value->ton = PRI_TON_NATIONAL;
|
|
break;
|
|
default:
|
|
pri_message(pri, "!! Unknown Party number component received 0x%X\n", comp->type);
|
|
return -1;
|
|
}
|
|
ASN1_FIXUP_LEN(comp, res);
|
|
NEXT_COMPONENT(comp, i);
|
|
if(i < len)
|
|
pri_message(pri, "!! not all information is handled from Address component\n");
|
|
return res + 2;
|
|
}
|
|
while (0);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int rose_presented_number_unscreened_decode(struct pri *pri, q931_call *call, unsigned char *data, int len, struct addressingdataelements_presentednumberunscreened *value)
|
|
{
|
|
int i = 0;
|
|
int size = 0;
|
|
struct rose_component *comp = NULL;
|
|
unsigned char *vdata = data;
|
|
|
|
/* Fill in default values */
|
|
value->ton = PRI_TON_UNKNOWN;
|
|
value->npi = PRI_NPI_E163_E164;
|
|
value->pres = -1; /* Data is not available */
|
|
|
|
do {
|
|
GET_COMPONENT(comp, i, vdata, len);
|
|
|
|
switch(comp->type) {
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_0): /* [0] presentationAllowedNumber */
|
|
value->pres = PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
|
|
size = rose_address_decode(pri, call, comp->data, comp->len, value);
|
|
ASN1_FIXUP_LEN(comp, size);
|
|
return size + 2;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_1): /* [1] IMPLICIT presentationRestricted */
|
|
if (comp->len != 0) { /* must be NULL */
|
|
pri_error(pri, "!! Invalid PresentationRestricted component received (len != 0)\n");
|
|
return -1;
|
|
}
|
|
value->pres = PRES_PROHIB_USER_NUMBER_NOT_SCREENED;
|
|
return 2;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_2): /* [2] IMPLICIT numberNotAvailableDueToInterworking */
|
|
if (comp->len != 0) { /* must be NULL */
|
|
pri_error(pri, "!! Invalid NumberNotAvailableDueToInterworking component received (len != 0)\n");
|
|
return -1;
|
|
}
|
|
value->pres = PRES_NUMBER_NOT_AVAILABLE;
|
|
return 2;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_3): /* [3] presentationRestrictedNumber */
|
|
value->pres = PRES_PROHIB_USER_NUMBER_NOT_SCREENED;
|
|
size = rose_address_decode(pri, call, comp->data, comp->len, value) + 2;
|
|
ASN1_FIXUP_LEN(comp, size);
|
|
return size + 2;
|
|
default:
|
|
pri_message(pri, "Invalid PresentedNumberUnscreened component 0x%X\n", comp->type);
|
|
}
|
|
return -1;
|
|
}
|
|
while (0);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int rose_diverting_leg_information2_decode(struct pri *pri, q931_call *call, struct rose_component *sequence, int len)
|
|
{
|
|
int i = 0;
|
|
int diversion_counter;
|
|
int diversion_reason;
|
|
char origcalledname[50] = "", redirectingname[50] = "";
|
|
struct addressingdataelements_presentednumberunscreened divertingnr;
|
|
struct addressingdataelements_presentednumberunscreened originalcallednr;
|
|
struct rose_component *comp = NULL;
|
|
unsigned char *vdata = sequence->data;
|
|
int res = 0;
|
|
|
|
/* Data checks */
|
|
if (sequence->type != (ASN1_CONSTRUCTOR | ASN1_SEQUENCE)) { /* Constructed Sequence */
|
|
pri_message(pri, "Invalid DivertingLegInformation2Type argument\n");
|
|
return -1;
|
|
}
|
|
|
|
if (sequence->len == ASN1_LEN_INDEF) {
|
|
len -= 4; /* For the 2 extra characters at the end
|
|
* and two characters of header */
|
|
} else
|
|
len -= 2;
|
|
|
|
do {
|
|
/* diversionCounter stuff */
|
|
GET_COMPONENT(comp, i, vdata, len);
|
|
CHECK_COMPONENT(comp, ASN1_INTEGER, "Don't know what to do it diversionCounter is of type 0x%x\n");
|
|
ASN1_GET_INTEGER(comp, diversion_counter);
|
|
NEXT_COMPONENT(comp, i);
|
|
|
|
/* diversionReason stuff */
|
|
GET_COMPONENT(comp, i, vdata, len);
|
|
CHECK_COMPONENT(comp, ASN1_ENUMERATED, "Invalid diversionReason type 0x%X of ROSE divertingLegInformation2 component received\n");
|
|
ASN1_GET_INTEGER(comp, diversion_reason);
|
|
NEXT_COMPONENT(comp, i);
|
|
|
|
diversion_reason = redirectingreason_for_q931(pri, diversion_reason);
|
|
|
|
if(pri->debug & PRI_DEBUG_APDU)
|
|
pri_message(pri, " Redirection reason: %d, total diversions: %d\n", diversion_reason, diversion_counter);
|
|
pri_message(NULL, "Length of message is %d\n", len);
|
|
|
|
for(; i < len; NEXT_COMPONENT(comp, i)) {
|
|
GET_COMPONENT(comp, i, vdata, len);
|
|
switch(comp->type) {
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_0):
|
|
call->origredirectingreason = redirectingreason_for_q931(pri, comp->data[0]);
|
|
if (pri->debug & PRI_DEBUG_APDU)
|
|
pri_message(pri, " Received reason for original redirection %d\n", call->origredirectingreason);
|
|
break;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_1):
|
|
res = rose_presented_number_unscreened_decode(pri, call, comp->data, comp->len, &divertingnr);
|
|
/* TODO: Fix indefinite length form hacks */
|
|
ASN1_FIXUP_LEN(comp, res);
|
|
comp->len = res;
|
|
if (res < 0)
|
|
return -1;
|
|
if (pri->debug & PRI_DEBUG_APDU) {
|
|
pri_message(pri, " Received divertingNr '%s'\n", divertingnr.partyaddress);
|
|
pri_message(pri, " ton = %d, pres = %d, npi = %d\n", divertingnr.ton, divertingnr.pres, divertingnr.npi);
|
|
}
|
|
break;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_2):
|
|
res = rose_presented_number_unscreened_decode(pri, call, comp->data, comp->len, &originalcallednr);
|
|
if (res < 0)
|
|
return -1;
|
|
ASN1_FIXUP_LEN(comp, res);
|
|
comp->len = res;
|
|
if (pri->debug & PRI_DEBUG_APDU) {
|
|
pri_message(pri, " Received originalcallednr '%s'\n", originalcallednr.partyaddress);
|
|
pri_message(pri, " ton = %d, pres = %d, npi = %d\n", originalcallednr.ton, originalcallednr.pres, originalcallednr.npi);
|
|
}
|
|
break;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_3):
|
|
res = asn1_name_decode(comp->data, comp->len, redirectingname, sizeof(redirectingname));
|
|
if (res < 0)
|
|
return -1;
|
|
ASN1_FIXUP_LEN(comp, res);
|
|
comp->len = res;
|
|
if (pri->debug & PRI_DEBUG_APDU)
|
|
pri_message(pri, " Received RedirectingName '%s'\n", redirectingname);
|
|
break;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_4):
|
|
res = asn1_name_decode(comp->data, comp->len, origcalledname, sizeof(origcalledname));
|
|
if (res < 0)
|
|
return -1;
|
|
ASN1_FIXUP_LEN(comp, res);
|
|
comp->len = res;
|
|
if (pri->debug & PRI_DEBUG_APDU)
|
|
pri_message(pri, " Received Originally Called Name '%s'\n", origcalledname);
|
|
break;
|
|
default:
|
|
if (comp->type == 0 && comp->len == 0) {
|
|
break; /* Found termination characters */
|
|
}
|
|
pri_message(pri, "!! Invalid DivertingLegInformation2 component received 0x%X\n", comp->type);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (divertingnr.pres >= 0) {
|
|
call->redirectingplan = divertingnr.npi;
|
|
call->redirectingpres = divertingnr.pres;
|
|
call->redirectingreason = diversion_reason;
|
|
libpri_copy_string(call->redirectingnum, divertingnr.partyaddress, sizeof(call->redirectingnum));
|
|
}
|
|
if (originalcallednr.pres >= 0) {
|
|
call->origcalledplan = originalcallednr.npi;
|
|
call->origcalledpres = originalcallednr.pres;
|
|
libpri_copy_string(call->origcallednum, originalcallednr.partyaddress, sizeof(call->origcallednum));
|
|
}
|
|
libpri_copy_string(call->redirectingname, redirectingname, sizeof(call->redirectingname));
|
|
libpri_copy_string(call->origcalledname, origcalledname, sizeof(call->origcalledname));
|
|
return 0;
|
|
}
|
|
while (0);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int rose_diverting_leg_information2_encode(struct pri *pri, q931_call *call)
|
|
{
|
|
int i = 0, j, compsp = 0;
|
|
struct rose_component *comp, *compstk[10];
|
|
unsigned char buffer[256];
|
|
int len = 253;
|
|
|
|
#if 0 /* This is not required by specifications */
|
|
if (!strlen(call->callername)) {
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
buffer[i] = (ASN1_CONTEXT_SPECIFIC | Q932_PROTOCOL_EXTENSIONS);
|
|
i++;
|
|
/* Interpretation component */
|
|
ASN1_ADD_BYTECOMP(comp, COMP_TYPE_INTERPRETATION, buffer, i, 0x00 /* Discard unrecognized invokes */);
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_INVOKE, buffer, i);
|
|
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
/* Invoke component contents */
|
|
/* Invoke ID */
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, get_invokeid(pri));
|
|
/* Operation Tag */
|
|
|
|
/* ROSE operationId component */
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, ROSE_DIVERTING_LEG_INFORMATION2);
|
|
|
|
/* ROSE ARGUMENT component */
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONSTRUCTOR | ASN1_SEQUENCE), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
/* ROSE DivertingLegInformation2.diversionCounter component */
|
|
/* Always is 1 because other isn't available in the current design */
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, 1);
|
|
|
|
/* ROSE DivertingLegInformation2.diversionReason component */
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_ENUMERATED, buffer, i, redirectingreason_from_q931(pri, call->redirectingreason));
|
|
|
|
/* ROSE DivertingLegInformation2.divertingNr component */
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_1), buffer, i);
|
|
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
/* Redirecting information always not screened */
|
|
|
|
switch(call->redirectingpres) {
|
|
case PRES_ALLOWED_USER_NUMBER_NOT_SCREENED:
|
|
case PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN:
|
|
if (call->redirectingnum && strlen(call->redirectingnum)) {
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_0), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
/* NPI of redirected number is not supported in the current design */
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_1), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_ENUMERATED, buffer, i, typeofnumber_from_q931(pri, call->redirectingplan >> 4));
|
|
j = asn1_string_encode(ASN1_NUMERICSTRING, &buffer[i], len - i, 20, call->redirectingnum, strlen(call->redirectingnum));
|
|
if (j < 0)
|
|
return -1;
|
|
|
|
i += j;
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
break;
|
|
}
|
|
/* fall through */
|
|
case PRES_PROHIB_USER_NUMBER_PASSED_SCREEN:
|
|
case PRES_PROHIB_USER_NUMBER_NOT_SCREENED:
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_1), buffer, i);
|
|
break;
|
|
/* Don't know how to handle this */
|
|
case PRES_ALLOWED_NETWORK_NUMBER:
|
|
case PRES_PROHIB_NETWORK_NUMBER:
|
|
case PRES_ALLOWED_USER_NUMBER_FAILED_SCREEN:
|
|
case PRES_PROHIB_USER_NUMBER_FAILED_SCREEN:
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_1), buffer, i);
|
|
break;
|
|
default:
|
|
pri_message(pri, "!! Undefined presentation value for redirecting number: %d\n", call->redirectingpres);
|
|
case PRES_NUMBER_NOT_AVAILABLE:
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_2), buffer, i);
|
|
break;
|
|
}
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
/* ROSE DivertingLegInformation2.originalCalledNr component */
|
|
/* This information isn't supported by current design - duplicate divertingNr */
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_2), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
/* Redirecting information always not screened */
|
|
switch(call->redirectingpres) {
|
|
case PRES_ALLOWED_USER_NUMBER_NOT_SCREENED:
|
|
case PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN:
|
|
if (call->redirectingnum && strlen(call->redirectingnum)) {
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_0), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_1), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_ENUMERATED, buffer, i, typeofnumber_from_q931(pri, call->redirectingplan >> 4));
|
|
|
|
j = asn1_string_encode(ASN1_NUMERICSTRING, &buffer[i], len - i, 20, call->redirectingnum, strlen(call->redirectingnum));
|
|
if (j < 0)
|
|
return -1;
|
|
|
|
i += j;
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
break;
|
|
}
|
|
/* fall through */
|
|
case PRES_PROHIB_USER_NUMBER_PASSED_SCREEN:
|
|
case PRES_PROHIB_USER_NUMBER_NOT_SCREENED:
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_1), buffer, i);
|
|
break;
|
|
/* Don't know how to handle this */
|
|
case PRES_ALLOWED_NETWORK_NUMBER:
|
|
case PRES_PROHIB_NETWORK_NUMBER:
|
|
case PRES_ALLOWED_USER_NUMBER_FAILED_SCREEN:
|
|
case PRES_PROHIB_USER_NUMBER_FAILED_SCREEN:
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_1), buffer, i);
|
|
break;
|
|
default:
|
|
pri_message(pri, "!! Undefined presentation value for redirecting number: %d\n", call->redirectingpres);
|
|
case PRES_NUMBER_NOT_AVAILABLE:
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_2), buffer, i);
|
|
break;
|
|
}
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
/* Fix length of stacked components */
|
|
while(compsp > 0) {
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
}
|
|
|
|
if (pri_call_apdu_queue(call, Q931_SETUP, buffer, i, NULL, NULL))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Sending callername information functions */
|
|
static int add_callername_facility_ies(struct pri *pri, q931_call *c, int cpe)
|
|
{
|
|
int res = 0;
|
|
int i = 0;
|
|
unsigned char buffer[256];
|
|
unsigned char namelen = 0;
|
|
struct rose_component *comp = NULL, *compstk[10];
|
|
int compsp = 0;
|
|
int mymessage = 0;
|
|
static unsigned char op_tag[] = {
|
|
0x2a, /* informationFollowing 42 */
|
|
0x86,
|
|
0x48,
|
|
0xce,
|
|
0x15,
|
|
0x00,
|
|
0x04
|
|
};
|
|
|
|
if (!strlen(c->callername)) {
|
|
return -1;
|
|
}
|
|
|
|
buffer[i++] = (ASN1_CONTEXT_SPECIFIC | Q932_PROTOCOL_EXTENSIONS);
|
|
/* Interpretation component */
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_NFE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_BYTECOMP(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_0), buffer, i, 0);
|
|
ASN1_ADD_BYTECOMP(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_2), buffer, i, 0);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
ASN1_ADD_BYTECOMP(comp, COMP_TYPE_INTERPRETATION, buffer, i, 0);
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_INVOKE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
/* Invoke ID */
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, get_invokeid(pri));
|
|
|
|
/* Operation Tag */
|
|
res = asn1_string_encode(ASN1_OBJECTIDENTIFIER, &buffer[i], sizeof(buffer)-i, sizeof(op_tag), op_tag, sizeof(op_tag));
|
|
if (res < 0)
|
|
return -1;
|
|
i += res;
|
|
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_ENUMERATED, buffer, i, 0);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
if (!cpe) {
|
|
if (pri_call_apdu_queue(c, Q931_SETUP, buffer, i, NULL, NULL))
|
|
return -1;
|
|
}
|
|
|
|
|
|
/* Now the APDU that contains the information that needs sent.
|
|
* We can reuse the buffer since the queue function doesn't
|
|
* need it. */
|
|
|
|
i = 0;
|
|
namelen = strlen(c->callername);
|
|
if (namelen > 50) {
|
|
namelen = 50; /* truncate the name */
|
|
}
|
|
|
|
buffer[i++] = (ASN1_CONTEXT_SPECIFIC | Q932_PROTOCOL_EXTENSIONS);
|
|
/* Interpretation component */
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_NFE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_BYTECOMP(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_0), buffer, i, 0);
|
|
ASN1_ADD_BYTECOMP(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_2), buffer, i, 0);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
ASN1_ADD_BYTECOMP(comp, COMP_TYPE_INTERPRETATION, buffer, i, 0);
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_INVOKE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
|
|
/* Invoke ID */
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, get_invokeid(pri));
|
|
|
|
/* Operation ID: Calling name */
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, SS_CNID_CALLINGNAME);
|
|
|
|
res = asn1_string_encode((ASN1_CONTEXT_SPECIFIC | ASN1_TAG_0), &buffer[i], sizeof(buffer)-i, 50, c->callername, namelen);
|
|
if (res < 0)
|
|
return -1;
|
|
i += res;
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
if (cpe)
|
|
mymessage = Q931_SETUP;
|
|
else
|
|
mymessage = Q931_FACILITY;
|
|
|
|
if (pri_call_apdu_queue(c, mymessage, buffer, i, NULL, NULL))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
/* End Callername */
|
|
|
|
/* MWI related encode and decode functions */
|
|
static void mwi_activate_encode_cb(void *data)
|
|
{
|
|
return;
|
|
}
|
|
|
|
extern int mwi_message_send(struct pri* pri, q931_call *call, struct pri_sr *req, int activate)
|
|
{
|
|
int i = 0;
|
|
unsigned char buffer[255] = "";
|
|
int destlen = strlen(req->called);
|
|
struct rose_component *comp = NULL, *compstk[10];
|
|
int compsp = 0;
|
|
int res;
|
|
|
|
if (destlen <= 0) {
|
|
return -1;
|
|
} else if (destlen > 20)
|
|
destlen = 20; /* Destination number cannot be greater then 20 digits */
|
|
|
|
buffer[i++] = (ASN1_CONTEXT_SPECIFIC | Q932_PROTOCOL_EXTENSIONS);
|
|
/* Interpretation component */
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_NFE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_BYTECOMP(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_0), buffer, i, 0);
|
|
ASN1_ADD_BYTECOMP(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_2), buffer, i, 0);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
ASN1_ADD_BYTECOMP(comp, COMP_TYPE_INTERPRETATION, buffer, i, 0);
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_INVOKE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, get_invokeid(pri));
|
|
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, (activate) ? SS_MWI_ACTIVATE : SS_MWI_DEACTIVATE);
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONSTRUCTOR | ASN1_SEQUENCE), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
/* PartyNumber */
|
|
res = asn1_string_encode((ASN1_CONTEXT_SPECIFIC | ASN1_TAG_0), &buffer[i], sizeof(buffer)-i, destlen, req->called, destlen);
|
|
|
|
if (res < 0)
|
|
return -1;
|
|
i += res;
|
|
|
|
/* Enumeration: basicService */
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_ENUMERATED, buffer, i, 1 /* contents: Voice */);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
return pri_call_apdu_queue(call, Q931_SETUP, buffer, i, mwi_activate_encode_cb, NULL);
|
|
}
|
|
/* End MWI */
|
|
|
|
/* EECT functions */
|
|
extern int eect_initiate_transfer(struct pri *pri, q931_call *c1, q931_call *c2)
|
|
{
|
|
/* Did all the tests to see if we're on the same PRI and
|
|
* are on a compatible switchtype */
|
|
/* TODO */
|
|
int i = 0;
|
|
int res = 0;
|
|
unsigned char buffer[255] = "";
|
|
unsigned short call_reference = c2->cr;
|
|
struct rose_component *comp = NULL, *compstk[10];
|
|
int compsp = 0;
|
|
static unsigned char op_tag[] = {
|
|
0x2A,
|
|
0x86,
|
|
0x48,
|
|
0xCE,
|
|
0x15,
|
|
0x00,
|
|
0x08,
|
|
};
|
|
|
|
buffer[i++] = (ASN1_CONTEXT_SPECIFIC | Q932_PROTOCOL_EXTENSIONS);
|
|
/* Interpretation component */
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_NFE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_BYTECOMP(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_0), buffer, i, 0);
|
|
ASN1_ADD_BYTECOMP(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_2), buffer, i, 0);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
ASN1_ADD_BYTECOMP(comp, COMP_TYPE_INTERPRETATION, buffer, i, 0);
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_INVOKE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, get_invokeid(pri));
|
|
|
|
res = asn1_string_encode(ASN1_OBJECTIDENTIFIER, &buffer[i], sizeof(buffer)-i, sizeof(op_tag), op_tag, sizeof(op_tag));
|
|
if (res < 0)
|
|
return -1;
|
|
i += res;
|
|
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_SEQUENCE | ASN1_CONSTRUCTOR), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_WORDCOMP(comp, ASN1_INTEGER, buffer, i, call_reference);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
res = pri_call_apdu_queue(c1, Q931_FACILITY, buffer, i, NULL, NULL);
|
|
if (res) {
|
|
pri_message(pri, "Could not queue APDU in facility message\n");
|
|
return -1;
|
|
}
|
|
|
|
/* Remember that if we queue a facility IE for a facility message we
|
|
* have to explicitly send the facility message ourselves */
|
|
|
|
res = q931_facility(c1->pri, c1);
|
|
if (res) {
|
|
pri_message(pri, "Could not schedule facility message for call %d\n", c1->cr);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
/* End EECT */
|
|
|
|
/* AOC */
|
|
static int aoc_aoce_charging_request_decode(struct pri *pri, q931_call *call, unsigned char *data, int len)
|
|
{
|
|
int chargingcase = -1;
|
|
unsigned char *vdata = data;
|
|
struct rose_component *comp = NULL;
|
|
int pos1 = 0;
|
|
|
|
if (pri->debug & PRI_DEBUG_AOC)
|
|
dump_apdu (pri, data, len);
|
|
|
|
do {
|
|
GET_COMPONENT(comp, pos1, vdata, len);
|
|
CHECK_COMPONENT(comp, ASN1_ENUMERATED, "!! Invalid AOC Charging Request argument. Expected Enumerated (0x0A) but Received 0x%02X\n");
|
|
ASN1_GET_INTEGER(comp, chargingcase);
|
|
if (chargingcase >= 0 && chargingcase <= 2) {
|
|
if (pri->debug & PRI_DEBUG_APDU)
|
|
pri_message(pri, "Channel %d/%d, Call %d - received AOC charging request - charging case: %i\n",
|
|
call->ds1no, call->channelno, call->cr, chargingcase);
|
|
} else {
|
|
pri_message(pri, "!! unkown AOC ChargingCase: 0x%02X", chargingcase);
|
|
chargingcase = -1;
|
|
}
|
|
NEXT_COMPONENT(comp, pos1);
|
|
} while (pos1 < len);
|
|
if (pos1 < len) {
|
|
pri_message(pri, "!! Only reached position %i in %i bytes long AOC-E structure:", pos1, len );
|
|
dump_apdu (pri, data, len);
|
|
return -1; /* Aborted before */
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int aoc_aoce_charging_unit_decode(struct pri *pri, q931_call *call, unsigned char *data, int len)
|
|
{
|
|
long chargingunits = 0, chargetype = -1, temp, chargeIdentifier = -1;
|
|
unsigned char *vdata = data;
|
|
struct rose_component *comp1 = NULL, *comp2 = NULL, *comp3 = NULL;
|
|
int pos1 = 0, pos2, pos3, sublen2, sublen3;
|
|
struct addressingdataelements_presentednumberunscreened chargednr;
|
|
|
|
if (pri->debug & PRI_DEBUG_AOC)
|
|
dump_apdu (pri, data, len);
|
|
|
|
do {
|
|
GET_COMPONENT(comp1, pos1, vdata, len); /* AOCEChargingUnitInfo */
|
|
CHECK_COMPONENT(comp1, ASN1_SEQUENCE, "!! Invalid AOC-E Charging Unit argument. Expected Sequence (0x30) but Received 0x%02X\n");
|
|
SUB_COMPONENT(comp1, pos1);
|
|
GET_COMPONENT(comp1, pos1, vdata, len);
|
|
switch (comp1->type) {
|
|
case (ASN1_SEQUENCE | ASN1_CONSTRUCTOR): /* specificChargingUnits */
|
|
sublen2 = comp1->len;
|
|
pos2 = pos1;
|
|
comp2 = comp1;
|
|
SUB_COMPONENT(comp2, pos2);
|
|
do {
|
|
GET_COMPONENT(comp2, pos2, vdata, len);
|
|
switch (comp2->type) {
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_1): /* RecordedUnitsList (0xA1) */
|
|
SUB_COMPONENT(comp2, pos2);
|
|
GET_COMPONENT(comp2, pos2, vdata, len);
|
|
CHECK_COMPONENT(comp2, ASN1_SEQUENCE, "!! Invalid AOC-E Charging Unit argument. Expected Sequence (0x30) but received 0x02%X\n"); /* RecordedUnits */
|
|
sublen3 = pos2 + comp2->len;
|
|
pos3 = pos2;
|
|
comp3 = comp2;
|
|
SUB_COMPONENT(comp3, pos3);
|
|
do {
|
|
GET_COMPONENT(comp3, pos3, vdata, len);
|
|
switch (comp3->type) {
|
|
case ASN1_INTEGER: /* numberOfUnits */
|
|
ASN1_GET_INTEGER(comp3, temp);
|
|
chargingunits += temp;
|
|
case ASN1_NULL: /* notAvailable */
|
|
break;
|
|
default:
|
|
pri_message(pri, "!! Don't know how to handle 0x%02X in AOC-E RecordedUnits\n", comp3->type);
|
|
}
|
|
NEXT_COMPONENT(comp3, pos3);
|
|
} while (pos3 < sublen3);
|
|
if (pri->debug & PRI_DEBUG_AOC)
|
|
pri_message(pri, "Channel %d/%d, Call %d - received AOC-E charging: %i unit%s\n",
|
|
call->ds1no, call->channelno, call->cr, chargingunits, (chargingunits == 1) ? "" : "s");
|
|
break;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_2): /* AOCEBillingID (0xA2) */
|
|
SUB_COMPONENT(comp2, pos2);
|
|
GET_COMPONENT(comp2, pos2, vdata, len);
|
|
ASN1_GET_INTEGER(comp2, chargetype);
|
|
pri_message(pri, "!! not handled: Channel %d/%d, Call %d - received AOC-E billing ID: %i\n",
|
|
call->ds1no, call->channelno, call->cr, chargetype);
|
|
break;
|
|
default:
|
|
pri_message(pri, "!! Don't know how to handle 0x%02X in AOC-E RecordedUnitsList\n", comp2->type);
|
|
}
|
|
NEXT_COMPONENT(comp2, pos2);
|
|
} while (pos2 < sublen2);
|
|
break;
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_1): /* freeOfCharge (0x81) */
|
|
if (pri->debug & PRI_DEBUG_AOC)
|
|
pri_message(pri, "Channel %d/%d, Call %d - received AOC-E free of charge\n", call->ds1no, call->channelno, call->cr);
|
|
chargingunits = 0;
|
|
break;
|
|
default:
|
|
pri_message(pri, "!! Invalid AOC-E specificChargingUnits. Expected Sequence (0x30) or Object Identifier (0x81/0x01) but received 0x%02X\n", comp1->type);
|
|
}
|
|
NEXT_COMPONENT(comp1, pos1);
|
|
GET_COMPONENT(comp1, pos1, vdata, len); /* get optional chargingAssociation. will 'break' when reached end of structure */
|
|
switch (comp1->type) {
|
|
/* TODO: charged number is untested - please report! */
|
|
case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_0): /* chargedNumber (0xA0) */
|
|
if(rose_presented_number_unscreened_decode(pri, call, comp1->data, comp1->len, &chargednr) != 0)
|
|
return -1;
|
|
pri_message(pri, "!! not handled: Received ChargedNr '%s' \n", chargednr.partyaddress);
|
|
pri_message(pri, " ton = %d, pres = %d, npi = %d\n", chargednr.ton, chargednr.pres, chargednr.npi);
|
|
break;
|
|
case ASN1_INTEGER:
|
|
ASN1_GET_INTEGER(comp1, chargeIdentifier);
|
|
break;
|
|
default:
|
|
pri_message(pri, "!! Invalid AOC-E chargingAssociation. Expected Object Identifier (0xA0) or Integer (0x02) but received 0x%02X\n", comp1->type);
|
|
}
|
|
NEXT_COMPONENT(comp1, pos1);
|
|
} while (pos1 < len);
|
|
|
|
if (pos1 < len) {
|
|
pri_message(pri, "!! Only reached position %i in %i bytes long AOC-E structure:", pos1, len );
|
|
dump_apdu (pri, data, len);
|
|
return -1; /* oops - aborted before */
|
|
}
|
|
call->aoc_units = chargingunits;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aoc_aoce_charging_unit_encode(struct pri *pri, q931_call *c, long chargedunits)
|
|
{
|
|
/* sample data: [ 91 a1 12 02 02 3a 78 02 01 24 30 09 30 07 a1 05 30 03 02 01 01 ] */
|
|
int i = 0, res = 0, compsp = 0;
|
|
unsigned char buffer[255] = "";
|
|
struct rose_component *comp = NULL, *compstk[10];
|
|
|
|
/* ROSE protocol (0x91)*/
|
|
buffer[i++] = (ASN1_CONTEXT_SPECIFIC | Q932_PROTOCOL_ROSE);
|
|
|
|
/* ROSE Component (0xA1,len)*/
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_INVOKE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
|
|
/* ROSE invokeId component (0x02,len,id)*/
|
|
ASN1_ADD_WORDCOMP(comp, INVOKE_IDENTIFIER, buffer, i, ++pri->last_invoke);
|
|
|
|
/* ROSE operationId component (0x02,0x01,0x24)*/
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, ROSE_AOC_AOCE_CHARGING_UNIT);
|
|
|
|
/* AOCEChargingUnitInfo (0x30,len) */
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONSTRUCTOR | ASN1_SEQUENCE), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
|
|
if (chargedunits > 0) {
|
|
/* SpecificChargingUnits (0x30,len) */
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONSTRUCTOR | ASN1_SEQUENCE), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
|
|
/* RecordedUnitsList (0xA1,len) */
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_1), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
|
|
/* RecordedUnits (0x30,len) */
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONSTRUCTOR | ASN1_SEQUENCE), buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
|
|
/* NumberOfUnits (0x02,len,charge) */
|
|
ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, chargedunits);
|
|
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
} else {
|
|
/* freeOfCharge (0x81,0) */
|
|
ASN1_ADD_SIMPLE(comp, (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_1), buffer, i);
|
|
}
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
if (pri->debug & PRI_DEBUG_AOC)
|
|
dump_apdu (pri, buffer, i);
|
|
|
|
/* code below is untested */
|
|
res = pri_call_apdu_queue(c, Q931_FACILITY, buffer, i, NULL, NULL);
|
|
if (res) {
|
|
pri_message(pri, "Could not queue APDU in facility message\n");
|
|
return -1;
|
|
}
|
|
|
|
/* Remember that if we queue a facility IE for a facility message we
|
|
* have to explicitly send the facility message ourselves */
|
|
res = q931_facility(c->pri, c);
|
|
if (res) {
|
|
pri_message(pri, "Could not schedule facility message for call %d\n", c->cr);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
/* End AOC */
|
|
|
|
extern int rose_invoke_decode(struct pri *pri, q931_call *call, unsigned char *data, int len)
|
|
{
|
|
int i = 0;
|
|
int operation_tag;
|
|
unsigned char *vdata = data;
|
|
struct rose_component *comp = NULL, *invokeid = NULL, *operationid = NULL;
|
|
|
|
do {
|
|
/* Invoke ID stuff */
|
|
GET_COMPONENT(comp, i, vdata, len);
|
|
CHECK_COMPONENT(comp, INVOKE_IDENTIFIER, "Don't know what to do if first ROSE component is of type 0x%x\n");
|
|
invokeid = comp;
|
|
NEXT_COMPONENT(comp, i);
|
|
|
|
/* Operation Tag */
|
|
GET_COMPONENT(comp, i, vdata, len);
|
|
CHECK_COMPONENT(comp, ASN1_INTEGER, "Don't know what to do if second ROSE component is of type 0x%x\n");
|
|
operationid = comp;
|
|
ASN1_GET_INTEGER(comp, operation_tag);
|
|
NEXT_COMPONENT(comp, i);
|
|
|
|
/* No argument - return with error */
|
|
if (i >= len)
|
|
return -1;
|
|
|
|
/* Arguement Tag */
|
|
GET_COMPONENT(comp, i, vdata, len);
|
|
if (!comp->type)
|
|
return -1;
|
|
|
|
if (pri->debug & PRI_DEBUG_APDU)
|
|
pri_message(pri, " [ Handling operation %d ]\n", operation_tag);
|
|
switch (operation_tag) {
|
|
case SS_CNID_CALLINGNAME:
|
|
if (pri->debug & PRI_DEBUG_APDU)
|
|
pri_message(pri, " Handle Name display operation\n");
|
|
switch (comp->type) {
|
|
case ROSE_NAME_PRESENTATION_ALLOWED_SIMPLE:
|
|
memcpy(call->callername, comp->data, comp->len);
|
|
call->callername[comp->len] = 0;
|
|
if (pri->debug & PRI_DEBUG_APDU)
|
|
pri_message(pri, " Received caller name '%s'\n", call->callername);
|
|
return 0;
|
|
default:
|
|
if (pri->debug & PRI_DEBUG_APDU)
|
|
pri_message(pri, "Do not handle argument of type 0x%X\n", comp->type);
|
|
return -1;
|
|
}
|
|
break;
|
|
case ROSE_DIVERTING_LEG_INFORMATION2:
|
|
if (pri->debug & PRI_DEBUG_APDU)
|
|
pri_message(pri, " Handle DivertingLegInformation2\n");
|
|
return rose_diverting_leg_information2_decode(pri, call, comp, len-i);
|
|
case ROSE_AOC_NO_CHARGING_INFO_AVAILABLE:
|
|
if (pri->debug & PRI_DEBUG_APDU) {
|
|
pri_message(pri, "ROSE %i: AOC No Charging Info Available - not handled!", operation_tag);
|
|
dump_apdu (pri, comp->data, comp->len);
|
|
}
|
|
return -1;
|
|
case ROSE_AOC_CHARGING_REQUEST:
|
|
return aoc_aoce_charging_request_decode(pri, call, (u_int8_t *)comp, comp->len + 2);
|
|
case ROSE_AOC_AOCS_CURRENCY:
|
|
if (pri->debug & PRI_DEBUG_APDU) {
|
|
pri_message(pri, "ROSE %i: AOC-S Currency - not handled!", operation_tag);
|
|
dump_apdu (pri, (u_int8_t *)comp, comp->len + 2);
|
|
}
|
|
return -1;
|
|
case ROSE_AOC_AOCS_SPECIAL_ARR:
|
|
if (pri->debug & PRI_DEBUG_APDU) {
|
|
pri_message(pri, "ROSE %i: AOC-S Special Array - not handled!", operation_tag);
|
|
dump_apdu (pri, (u_int8_t *)comp, comp->len + 2);
|
|
}
|
|
return -1;
|
|
case ROSE_AOC_AOCD_CURRENCY:
|
|
if (pri->debug & PRI_DEBUG_APDU) {
|
|
pri_message(pri, "ROSE %i: AOC-D Currency - not handled!", operation_tag);
|
|
dump_apdu (pri, (u_int8_t *)comp, comp->len + 2);
|
|
}
|
|
return -1;
|
|
case ROSE_AOC_AOCD_CHARGING_UNIT:
|
|
if (pri->debug & PRI_DEBUG_APDU) {
|
|
pri_message(pri, "ROSE %i: AOC-D Charging Unit - not handled!", operation_tag);
|
|
dump_apdu (pri, (u_int8_t *)comp, comp->len + 2);
|
|
}
|
|
return -1;
|
|
case ROSE_AOC_AOCE_CURRENCY:
|
|
if (pri->debug & PRI_DEBUG_APDU) {
|
|
pri_message(pri, "ROSE %i: AOC-E Currency - not handled!", operation_tag);
|
|
dump_apdu (pri, (u_int8_t *)comp, comp->len + 2);
|
|
}
|
|
return -1;
|
|
case ROSE_AOC_AOCE_CHARGING_UNIT:
|
|
return aoc_aoce_charging_unit_decode(pri, call, (u_int8_t *)comp, comp->len + 2);
|
|
if (0) { /* the following function is currently not used - just to make the compiler happy */
|
|
aoc_aoce_charging_unit_encode(pri, call, call->aoc_units); /* use this function to forward the aoc-e on a bridged channel */
|
|
return 0;
|
|
}
|
|
case ROSE_AOC_IDENTIFICATION_OF_CHARGE:
|
|
if (pri->debug & PRI_DEBUG_APDU) {
|
|
pri_message(pri, "ROSE %i: AOC Identification Of Charge - not handled!", operation_tag);
|
|
dump_apdu (pri, (u_int8_t *)comp, comp->len + 2);
|
|
}
|
|
return -1;
|
|
default:
|
|
if (pri->debug & PRI_DEBUG_APDU) {
|
|
pri_message(pri, "!! Unable to handle ROSE operation %d", operation_tag);
|
|
dump_apdu (pri, (u_int8_t *)comp, comp->len + 2);
|
|
}
|
|
return -1;
|
|
}
|
|
} while(0);
|
|
|
|
return -1;
|
|
}
|
|
|
|
extern int pri_call_apdu_queue(q931_call *call, int messagetype, void *apdu, int apdu_len, void (*function)(void *data), void *data)
|
|
{
|
|
struct apdu_event *cur = NULL;
|
|
struct apdu_event *new_event = NULL;
|
|
|
|
if (!call || !messagetype || !apdu || (apdu_len < 1) || (apdu_len > 255))
|
|
return -1;
|
|
|
|
new_event = malloc(sizeof(struct apdu_event));
|
|
|
|
if (new_event) {
|
|
memset(new_event, 0, sizeof(struct apdu_event));
|
|
new_event->message = messagetype;
|
|
new_event->callback = function;
|
|
new_event->data = data;
|
|
memcpy(new_event->apdu, apdu, apdu_len);
|
|
new_event->apdu_len = apdu_len;
|
|
} else {
|
|
pri_error(call->pri, "!! Malloc failed!\n");
|
|
return -1;
|
|
}
|
|
|
|
if (call->apdus) {
|
|
cur = call->apdus;
|
|
while (cur->next) {
|
|
cur = cur->next;
|
|
}
|
|
cur->next = new_event;
|
|
} else
|
|
call->apdus = new_event;
|
|
|
|
return 0;
|
|
}
|
|
|
|
extern int pri_call_apdu_queue_cleanup(q931_call *call)
|
|
{
|
|
struct apdu_event *cur_event = NULL, *free_event = NULL;
|
|
|
|
if (call && call->apdus) {
|
|
cur_event = call->apdus;
|
|
while (cur_event) {
|
|
/* TODO: callbacks, some way of giving return res on status of apdu */
|
|
free_event = cur_event;
|
|
cur_event = cur_event->next;
|
|
free(free_event);
|
|
}
|
|
call->apdus = NULL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
extern int pri_call_add_standard_apdus(struct pri *pri, q931_call *call)
|
|
{
|
|
if (!pri->sendfacility)
|
|
return 0;
|
|
|
|
if (pri->switchtype == PRI_SWITCH_QSIG) { /* For Q.SIG it does network and cpe operations */
|
|
if (call->redirectingnum[0])
|
|
rose_diverting_leg_information2_encode(pri, call);
|
|
add_callername_facility_ies(pri, call, 1);
|
|
return 0;
|
|
}
|
|
|
|
#if 0
|
|
if (pri->localtype == PRI_NETWORK) {
|
|
switch (pri->switchtype) {
|
|
case PRI_SWITCH_NI2:
|
|
add_callername_facility_ies(pri, call, 0);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
} else if (pri->localtype == PRI_CPE) {
|
|
switch (pri->switchtype) {
|
|
case PRI_SWITCH_NI2:
|
|
add_callername_facility_ies(pri, call, 1);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
#else
|
|
if (pri->switchtype == PRI_SWITCH_NI2)
|
|
add_callername_facility_ies(pri, call, (pri->localtype == PRI_CPE));
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|