84adda970c
git-svn-id: https://origsvn.digium.com/svn/libpri/trunk@200 2fbb986a-6c06-0410-b554-c9c1f0a7f128
906 lines
27 KiB
C
Executable File
906 lines
27 KiB
C
Executable File
/*
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This file and it's contents are licensed under the terms and conditions
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of the GNU Public License. See http://www.gnu.org for details.
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Routines for dealing with facility messages and their respective
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components (ROSE)
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by Matthew Fredrickson <creslin@digium.com>
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Copyright (C) 2004-2005 Digium, Inc
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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 <stdlib.h>
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#include <string.h>
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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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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("!! 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("!! 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("!! 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("!! 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("!! 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("!! 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("!! 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_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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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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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) {
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pri_message("!! Oversized NumberDigits component (%d)\n", comp->len);
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return -1;
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}
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memcpy(value->partyaddress, comp->data, comp->len);
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value->partyaddress[comp->len] = '\0';
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return 0;
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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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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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if(rose_number_digits_decode(pri, call, &vdata[i], len-i, value))
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return -1;
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value->ton = ton;
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return 0;
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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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do {
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GET_COMPONENT(comp, i, vdata, len);
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switch(comp->type) {
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case 0xA0: /* unknownPartyNumber */
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if(rose_number_digits_decode(pri, call, comp->data, comp->len, value))
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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 0xA1: /* publicPartyNumber */
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if(rose_public_party_number_decode(pri, call, comp->data, comp->len, value) != 0)
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return -1;
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value->npi = PRI_NPI_E163_E164;
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break;
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case 0xA2: /* nsapEncodedNumber */
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pri_message("!! NsapEncodedNumber isn't handled\n");
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return -1;
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case 0xA3: /* dataPartyNumber */
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if(rose_number_digits_decode(pri, call, comp->data, comp->len, value))
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return -1;
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value->npi = PRI_NPI_X121 /* ??? */;
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value->ton = PRI_TON_UNKNOWN /* ??? */;
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pri_message("!! dataPartyNumber isn't handled\n");
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return -1;
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case 0xA4: /* telexPartyNumber */
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if (rose_number_digits_decode(pri, call, comp->data, comp->len, value))
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return -1;
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value->npi = PRI_NPI_F69 /* ??? */;
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value->ton = PRI_TON_UNKNOWN /* ??? */;
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pri_message("!! telexPartyNumber isn't handled\n");
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return -1;
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case 0xA5: /* priavePartyNumber */
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pri_message("!! privatePartyNumber isn't handled\n");
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value->npi = PRI_NPI_PRIVATE;
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return -1;
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case 0xA8: /* nationalStandardPartyNumber */
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if (rose_number_digits_decode(pri, call, comp->data, comp->len, value))
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return -1;
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value->npi = PRI_NPI_NATIONAL;
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value->ton = PRI_TON_NATIONAL;
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break;
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default:
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pri_message("!! Unknown Party number component received 0x%X\n", comp->type);
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return -1;
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}
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NEXT_COMPONENT(comp, i);
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if(i < len)
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pri_message("!! not all information is handled from Address component\n");
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return 0;
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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_presented_number_unscreened_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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/* Fill in default values */
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value->ton = PRI_TON_UNKNOWN;
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value->npi = PRI_NPI_E163_E164;
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value->pres = -1; /* Data is not available */
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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 0xA0: /* [0] presentationAllowedNumber */
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value->pres = PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
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return rose_address_decode(pri, call, comp->data, comp->len, value);
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case 0x81: /* [1] IMPLICIT presentationRestricted */
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if (comp->len != 0) { /* must be NULL */
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pri_error("!! Invalid PresentationRestricted component received (len != 0)\n");
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return -1;
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}
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value->pres = PRES_PROHIB_USER_NUMBER_NOT_SCREENED;
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return 0;
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case 0x82: /* [2] IMPLICIT numberNotAvailableDueToInterworking */
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if (comp->len != 0) { /* must be NULL */
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pri_error("!! Invalid NumberNotAvailableDueToInterworking component received (len != 0)\n");
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return -1;
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}
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value->pres = PRES_NUMBER_NOT_AVAILABLE;
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return 0;
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case 0xA3: /* [3] presentationRestrictedNumber */
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value->pres = PRES_PROHIB_USER_NUMBER_NOT_SCREENED;
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return rose_address_decode(pri, call, comp->data, comp->len, value);
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default:
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pri_message("Invalid PresentedNumberUnscreened component 0x%X\n", comp->type);
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}
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return -1;
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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_diverting_leg_information2_decode(struct pri *pri, q931_call *call, unsigned char *data, int len)
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{
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int i = 0;
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int diversion_counter;
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int diversion_reason;
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struct addressingdataelements_presentednumberunscreened divertingnr;
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struct addressingdataelements_presentednumberunscreened originalcallednr;
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struct rose_component *comp = NULL;
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unsigned char *vdata = data;
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do {
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/* diversionCounter stuff */
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GET_COMPONENT(comp, i, vdata, len);
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CHECK_COMPONENT(comp, ASN1_INTEGER, "Don't know what to do it diversionCounter is of type 0x%x\n");
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ASN1_GET_INTEGER(comp, diversion_counter);
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NEXT_COMPONENT(comp, i);
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/* diversionReason stuff */
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GET_COMPONENT(comp, i, vdata, len);
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CHECK_COMPONENT(comp, ASN1_ENUMERATED, "Invalid diversionReason type 0x%X of ROSE divertingLegInformation2 component received\n");
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ASN1_GET_INTEGER(comp, diversion_reason);
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NEXT_COMPONENT(comp, i);
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diversion_reason = redirectingreason_for_q931(pri, diversion_reason);
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if(pri->debug & PRI_DEBUG_APDU)
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pri_message(" Redirection reason: %d, total diversions: %d\n", diversion_reason, diversion_counter);
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for(; i < len; NEXT_COMPONENT(comp, i)) {
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GET_COMPONENT(comp, i, vdata, len);
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switch(comp->type) {
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case 0xA1: /* divertingnr: presentednumberunscreened */
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if(rose_presented_number_unscreened_decode(pri, call, comp->data, comp->len, &divertingnr) != 0)
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return -1;
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if (pri->debug & PRI_DEBUG_APDU) {
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pri_message(" Received divertingNr '%s'\n", divertingnr.partyaddress);
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pri_message(" ton = %d, pres = %d, npi = %d\n", divertingnr.ton, divertingnr.pres, divertingnr.npi);
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}
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break;
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case 0xA2: /* originalCalledNr: PresentedNumberUnscreened */
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if(rose_presented_number_unscreened_decode(pri, call, comp->data, comp->len, &originalcallednr) != 0)
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return -1;
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if (pri->debug & PRI_DEBUG_APDU) {
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pri_message(" Received originalcallednr '%s'\n", originalcallednr.partyaddress);
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pri_message(" ton = %d, pres = %d, npi = %d\n", originalcallednr.ton, originalcallednr.pres, originalcallednr.npi);
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}
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break;
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default:
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pri_message("!! Invalid DivertingLegInformation2 component received 0x%X\n", comp->type);
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return -1;
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}
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}
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if (i < len)
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return -1; /* Aborted before */
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if (divertingnr.pres >= 0) {
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call->redirectingplan = divertingnr.npi;
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call->redirectingpres = divertingnr.pres;
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call->redirectingreason = diversion_reason;
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strncpy(call->redirectingnum, divertingnr.partyaddress, sizeof(call->redirectingnum)-1);
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call->redirectingnum[sizeof(call->redirectingnum)-1] = '\0';
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}
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else if (originalcallednr.pres >= 0) {
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call->redirectingplan = originalcallednr.npi;
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call->redirectingpres = originalcallednr.pres;
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call->redirectingreason = diversion_reason;
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strncpy(call->redirectingnum, originalcallednr.partyaddress, sizeof(call->redirectingnum)-1);
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call->redirectingnum[sizeof(call->redirectingnum)-1] = '\0';
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}
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return 0;
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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_diverting_leg_information2_encode(struct pri *pri, q931_call *call)
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{
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int i = 0, j, compsp = 0;
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struct rose_component *comp, *compstk[10];
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unsigned char buffer[256];
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int len = 253;
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if (!strlen(call->callername)) {
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return -1;
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}
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buffer[i] = 0x80 | Q932_PROTOCOL_EXTENSIONS;
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i++;
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/* Interpretation component */
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ASN1_ADD_BYTECOMP(comp, COMP_TYPE_INTERPRETATION, buffer, i, 0x00 /* Discard unrecognized invokes */);
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ASN1_ADD_SIMPLE(comp, COMP_TYPE_INVOKE, buffer, i);
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ASN1_PUSH(compstk, compsp, comp);
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/* Invoke component contents */
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/* Invoke ID */
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ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, get_invokeid(pri));
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/* Operation Tag */
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/* ROSE operationId component */
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ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, ROSE_DIVERTING_LEG_INFORMATION2);
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/* ROSE ARGUMENT component */
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ASN1_ADD_SIMPLE(comp, 0x30, buffer, i);
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ASN1_PUSH(compstk, compsp, comp);
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/* ROSE DivertingLegInformation2.diversionCounter component */
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/* Always is 1 because other isn't available in the current design */
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ASN1_ADD_BYTECOMP(comp, ASN1_INTEGER, buffer, i, 1);
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/* ROSE DivertingLegInformation2.diversionReason component */
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ASN1_ADD_BYTECOMP(comp, ASN1_ENUMERATED, buffer, i, redirectingreason_from_q931(pri, call->redirectingreason));
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/* ROSE DivertingLegInformation2.divertingNr component */
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ASN1_ADD_SIMPLE(comp, 0xA1, buffer, i);
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ASN1_PUSH(compstk, compsp, comp);
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/* Redirecting information always not screened */
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switch(call->redirectingpres) {
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case PRES_ALLOWED_USER_NUMBER_NOT_SCREENED:
|
|
case PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN:
|
|
if (call->redirectingnum && strlen(call->redirectingnum)) {
|
|
ASN1_ADD_SIMPLE(comp, 0xA0, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
/* NPI of redirected number is not supported in the current design */
|
|
ASN1_ADD_SIMPLE(comp, 0xA1, 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, 0x81, 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, 0x81, buffer, i);
|
|
break;
|
|
default:
|
|
pri_message("!! Undefined presentation value for redirecting number: %d\n", call->redirectingpres);
|
|
case PRES_NUMBER_NOT_AVAILABLE:
|
|
ASN1_ADD_SIMPLE(comp, 0x82, 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, 0xA2, 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, 0xA0, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_SIMPLE(comp, 0xA1, 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, 0x81, 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, 0x81, buffer, i);
|
|
break;
|
|
default:
|
|
pri_message("!! Undefined presentation value for redirecting number: %d\n", call->redirectingpres);
|
|
case PRES_NUMBER_NOT_AVAILABLE:
|
|
ASN1_ADD_SIMPLE(comp, 0x82, 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 res = 0;
|
|
int i = 0;
|
|
unsigned char buffer[256];
|
|
unsigned char namelen = 0;
|
|
struct rose_component *comp = NULL, *compstk[10];
|
|
int compsp = 0;
|
|
static unsigned char op_tag[] = {
|
|
0x2a, /* informationFollowing 42 */
|
|
0x86,
|
|
0x48,
|
|
0xce,
|
|
0x15,
|
|
0x00,
|
|
0x04
|
|
};
|
|
|
|
if (!strlen(c->callername)) {
|
|
return -1;
|
|
}
|
|
|
|
buffer[i++] = 0x80 | Q932_PROTOCOL_EXTENSIONS;
|
|
/* Interpretation component */
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_NFE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_BYTECOMP(comp, 0x80, buffer, i, 0);
|
|
ASN1_ADD_BYTECOMP(comp, 0x82, 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 (pri_call_apdu_queue(c, Q931_SETUP, buffer, i, NULL, NULL))
|
|
return -1;
|
|
|
|
|
|
/* Now the ADPu 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++] = 0x80 | Q932_PROTOCOL_EXTENSIONS;
|
|
/* Interpretation component */
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_NFE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_BYTECOMP(comp, 0x80, buffer, i, 0);
|
|
ASN1_ADD_BYTECOMP(comp, 0x82, 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(0x80, &buffer[i], sizeof(buffer)-i, 50, c->callername, namelen);
|
|
if (res < 0)
|
|
return -1;
|
|
i += res;
|
|
ASN1_FIXUP(compstk, compsp, buffer, i);
|
|
|
|
if (pri_call_apdu_queue(c, Q931_FACILITY, 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++] = 0x80 | Q932_PROTOCOL_EXTENSIONS;
|
|
/* Interpretation component */
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_NFE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_BYTECOMP(comp, 0x80, buffer, i, 0);
|
|
ASN1_ADD_BYTECOMP(comp, 0x82, 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, 0x30 /* Sequence */, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
/* PartyNumber */
|
|
res = asn1_string_encode(0x80, &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++] = 0x80 | Q932_PROTOCOL_EXTENSIONS;
|
|
/* Interpretation component */
|
|
|
|
ASN1_ADD_SIMPLE(comp, COMP_TYPE_NFE, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_BYTECOMP(comp, 0x80, buffer, i, 0);
|
|
ASN1_ADD_BYTECOMP(comp, 0x82, 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 | 0x20, buffer, i);
|
|
ASN1_PUSH(compstk, compsp, comp);
|
|
ASN1_ADD_WORDCOMP(comp, 0x02, 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("Could not queue ADPU 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("Could not schedule facility message for call %d\n", c1->cr);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
/* End EECT */
|
|
|
|
|
|
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, ASN1_INTEGER, "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(" [ Handling operation %d ]\n", operation_tag);
|
|
switch (operation_tag) {
|
|
case SS_CNID_CALLINGNAME:
|
|
if (pri->debug & PRI_DEBUG_APDU)
|
|
pri_message(" 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(" Received caller name '%s'\n", call->callername);
|
|
return 0;
|
|
default:
|
|
pri_message("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(" Handle DivertingLegInformation2\n");
|
|
if (comp->type != 0x30) { /* Sequence */
|
|
pri_message("Invalid DivertingLegInformation2Type argument\n");
|
|
return -1;
|
|
}
|
|
return rose_diverting_leg_information2_decode(pri, call, comp->data, comp->len);
|
|
default:
|
|
pri_message("!! Unable to handle ROSE operation %d\n", operation_tag);
|
|
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("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->switchtype == PRI_SWITCH_QSIG) { /* For Q.SIG it does network and cpe operations */
|
|
rose_diverting_leg_information2_encode(pri, call);
|
|
}
|
|
|
|
#if 0
|
|
if (pri->localtype == PRI_NETWORK) {
|
|
#endif
|
|
if (1) {
|
|
switch (pri->switchtype) {
|
|
case PRI_SWITCH_NI2:
|
|
add_callername_facility_ies(pri, call);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|