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chan-capi/chan_capi_supplementary.c

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/*
* An implementation of Common ISDN API 2.0 for Asterisk
*
* Copyright (C) 2005-2009 Cytronics & Melware
*
* Armin Schindler <armin@melware.de>
*
* This program is free software and may be modified and
* distributed under the terms of the GNU Public License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "chan_capi_platform.h"
#include "chan_capi20.h"
#include "chan_capi.h"
#include "chan_capi_supplementary.h"
#include "chan_capi_utils.h"
#if defined(CC_AST_HAS_EVENT_MWI)
#include <asterisk/event.h>
#endif
#define CCBSNR_TYPE_CCBS 1
#define CCBSNR_TYPE_CCNR 2
#define CCBSNR_AVAILABLE 1
#define CCBSNR_REQUESTED 2
#define CCBSNR_ACTIVATED 3
struct ccbsnr_s {
char type;
_cword id;
unsigned int plci;
unsigned int state;
unsigned int handle;
_cword mode;
_cword rbref;
char partybusy;
char context[AST_MAX_CONTEXT];
char exten[AST_MAX_EXTENSION];
int priority;
time_t age;
struct ccbsnr_s *next;
};
static struct ccbsnr_s *ccbsnr_list = NULL;
AST_MUTEX_DEFINE_STATIC(ccbsnr_lock);
/*
* remove too old CCBS/CCNR entries
* (must be called with ccbsnr_lock held)
*/
static void del_old_ccbsnr(void)
{
struct ccbsnr_s *ccbsnr;
struct ccbsnr_s *tmp = NULL;
ccbsnr = ccbsnr_list;
while (ccbsnr) {
if ((ccbsnr->age + 86400) < time(NULL)) {
cc_verbose(1, 1, VERBOSE_PREFIX_3 CC_MESSAGE_NAME
": CCBS/CCNR handle=%d timeout.\n", ccbsnr->handle);
if (!tmp) {
ccbsnr_list = ccbsnr->next;
} else {
tmp->next = ccbsnr->next;
}
ast_free(ccbsnr);
break;
}
tmp = ccbsnr;
ccbsnr = ccbsnr->next;
}
}
/*
* cleanup CCBS/CCNR ids
*/
void cleanup_ccbsnr(void)
{
struct ccbsnr_s *ccbsnr;
struct ccbsnr_s *tmp = NULL;
cc_mutex_lock(&ccbsnr_lock);
ccbsnr = ccbsnr_list;
while (ccbsnr) {
tmp = ccbsnr;
ccbsnr = ccbsnr->next;
ast_free(tmp);
}
cc_mutex_unlock(&ccbsnr_lock);
}
/*
* return the controller of ccbsnr handle
*/
unsigned int capi_get_ccbsnrcontroller(unsigned int handle)
{
unsigned int contr = 0;
struct ccbsnr_s *ccbsnr;
cc_mutex_lock(&ccbsnr_lock);
ccbsnr = ccbsnr_list;
while (ccbsnr) {
if (ccbsnr->handle == handle) {
contr = (ccbsnr->plci & 0xff);
break;
}
ccbsnr = ccbsnr->next;
}
cc_mutex_unlock(&ccbsnr_lock);
return contr;
}
/*
* a new CCBS/CCNR id was received
*/
static void new_ccbsnr_id(char type, unsigned int plci,
_cword id, struct capi_pvt *i)
{
char buffer[CAPI_MAX_STRING];
struct ccbsnr_s *ccbsnr;
ccbsnr = ast_malloc(sizeof(struct ccbsnr_s));
if (ccbsnr == NULL) {
cc_log(LOG_ERROR, "Unable to allocate CCBS/CCNR struct.\n");
return;
}
memset(ccbsnr, 0, sizeof(struct ccbsnr_s));
ccbsnr->age = time(NULL);
ccbsnr->type = type;
ccbsnr->id = id;
ccbsnr->rbref = 0xdead;
ccbsnr->plci = plci;
ccbsnr->state = CCBSNR_AVAILABLE;
ccbsnr->handle = (id | ((plci & 0xff) << 16) | (type << 28));
if (i->peer) {
snprintf(buffer, CAPI_MAX_STRING-1, "%u", ccbsnr->handle);
pbx_builtin_setvar_helper(i->peer, "CCLINKAGEID", buffer);
} else {
cc_log(LOG_NOTICE, "No peerlink found to set CCBS/CCNR linkage ID.\n");
}
cc_mutex_lock(&ccbsnr_lock);
del_old_ccbsnr();
ccbsnr->next = ccbsnr_list;
ccbsnr_list = ccbsnr;
cc_mutex_unlock(&ccbsnr_lock);
cc_verbose(1, 1, VERBOSE_PREFIX_3
"%s: PLCI=%#x CCBS/CCNR new id=0x%04x handle=%d\n",
i->vname, plci, id, ccbsnr->handle);
/* if the hangup frame was deferred, it can be done now and here */
if (i->whentoqueuehangup) {
i->whentoqueuehangup = 0;
capi_queue_cause_control(i, 1);
}
}
/*
* return the pointer to ccbsnr structure by handle
*/
static struct ccbsnr_s *get_ccbsnr_link(char type, unsigned int plci,
unsigned int handle, _cword ref, unsigned int *state, char *busy)
{
struct ccbsnr_s *ret;
cc_mutex_lock(&ccbsnr_lock);
ret = ccbsnr_list;
while (ret) {
if (((handle) && (ret->handle == handle)) ||
((ref != 0xffff) && (ret->rbref == ref) &&
(ret->type == type) && ((ret->plci & 0xff) == (plci & 0xff)))) {
if (state) {
*state = ret->state;
}
if (busy) {
*busy = ret->partybusy;
}
break;
}
ret = ret->next;
}
cc_mutex_unlock(&ccbsnr_lock);
return ret;
}
/*
* function to tell if CCBSNR is activated
*/
static int ccbsnr_tell_activated(void *data)
{
unsigned int handle = (unsigned int)(unsigned long)data;
int ret = 0;
unsigned int state;
if (get_ccbsnr_link(0, 0, handle, 0xffff, &state, NULL) != NULL) {
if (state == CCBSNR_REQUESTED) {
ret = 1;
}
}
return ret;
}
/*
* select CCBS/CCNR id
*/
static unsigned int select_ccbsnr_id(unsigned int id, char type,
char *context, char *exten, int priority)
{
struct ccbsnr_s *ccbsnr;
int ret = 0;
cc_mutex_lock(&ccbsnr_lock);
ccbsnr = ccbsnr_list;
while (ccbsnr) {
if (((ccbsnr->plci & 0xff) == ((id >> 16) & 0xff)) &&
(ccbsnr->id == (id & 0xffff)) &&
(ccbsnr->type == type) &&
(ccbsnr->state == CCBSNR_AVAILABLE)) {
strncpy(ccbsnr->context, context, sizeof(ccbsnr->context) - 1);
strncpy(ccbsnr->exten, exten, sizeof(ccbsnr->exten) - 1);
ccbsnr->priority = priority;
ccbsnr->state = CCBSNR_REQUESTED;
ret = ccbsnr->handle;
cc_verbose(1, 1, VERBOSE_PREFIX_3 CC_MESSAGE_NAME
": request CCBS/NR id=0x%x handle=%d (%s,%s,%d)\n",
id, ret, context, exten, priority);
break;
}
ccbsnr = ccbsnr->next;
}
cc_mutex_unlock(&ccbsnr_lock);
return ret;
}
/*
* a CCBS/CCNR ref was removed
*/
static void del_ccbsnr_ref(unsigned int plci, _cword ref)
{
struct ccbsnr_s *ccbsnr;
struct ccbsnr_s *tmp = NULL;
cc_mutex_lock(&ccbsnr_lock);
ccbsnr = ccbsnr_list;
while (ccbsnr) {
if (((ccbsnr->plci & 0xff) == (plci & 0xff)) &&
(ccbsnr->rbref == ref)) {
if (!tmp) {
ccbsnr_list = ccbsnr->next;
} else {
tmp->next = ccbsnr->next;
}
ast_free(ccbsnr);
cc_verbose(1, 1, VERBOSE_PREFIX_3 CC_MESSAGE_NAME
": PLCI=%#x CCBS/CCNR removed ref=0x%04x\n", plci, ref);
break;
}
tmp = ccbsnr;
ccbsnr = ccbsnr->next;
}
cc_mutex_unlock(&ccbsnr_lock);
}
/*
* return rbref of CCBS/CCNR and delete entry
*/
_cword capi_ccbsnr_take_ref(unsigned int handle)
{
unsigned int plci = 0;
_cword rbref = 0xdead;
struct ccbsnr_s *ccbsnr;
cc_mutex_lock(&ccbsnr_lock);
ccbsnr = ccbsnr_list;
while (ccbsnr) {
if (ccbsnr->handle == handle) {
plci = ccbsnr->plci;
rbref = ccbsnr->rbref;
break;
}
ccbsnr = ccbsnr->next;
}
cc_mutex_unlock(&ccbsnr_lock);
if (rbref != 0xdead) {
del_ccbsnr_ref(plci, rbref);
}
return rbref;
}
/*
* a CCBS/CCNR id was removed
*/
static void del_ccbsnr_id(unsigned int plci, _cword id)
{
struct ccbsnr_s *ccbsnr;
struct ccbsnr_s *tmp = NULL;
unsigned int oldstate;
cc_mutex_lock(&ccbsnr_lock);
ccbsnr = ccbsnr_list;
while (ccbsnr) {
if (((ccbsnr->plci & 0xff) == (plci & 0xff)) &&
(ccbsnr->id == id)) {
oldstate = ccbsnr->state;
if (ccbsnr->state == CCBSNR_AVAILABLE) {
if (!tmp) {
ccbsnr_list = ccbsnr->next;
} else {
tmp->next = ccbsnr->next;
}
ast_free(ccbsnr);
cc_verbose(1, 1, VERBOSE_PREFIX_3 CC_MESSAGE_NAME ": PLCI=%#x CCBS/CCNR removed "
"id=0x%04x state=%d\n", plci, id, oldstate);
} else {
/* just deactivate the linkage id */
ccbsnr->id = 0xdead;
cc_verbose(1, 1, VERBOSE_PREFIX_3 CC_MESSAGE_NAME ": PLCI=%#x CCBS/CCNR erase-only "
"id=0x%04x state=%d\n", plci, id, ccbsnr->state);
}
break;
}
tmp = ccbsnr;
ccbsnr = ccbsnr->next;
}
cc_mutex_unlock(&ccbsnr_lock);
}
/*
* on an activated CCBS, the remote party is now free
*/
static void ccbsnr_remote_user_free(_cmsg *CMSG, char type, unsigned int PLCI, _cword rbref)
{
struct ast_channel *c;
struct ccbsnr_s *ccbsnr;
char handlename[CAPI_MAX_STRING];
int state = AST_STATE_DOWN;
/* XXX start alerting , when answered use CCBS call */
cc_mutex_lock(&ccbsnr_lock);
ccbsnr = ccbsnr_list;
while (ccbsnr) {
if ((ccbsnr->type == type) &&
((ccbsnr->plci & 0xff) == (PLCI & 0xff)) &&
(ccbsnr->rbref == rbref)) {
break;
}
ccbsnr = ccbsnr->next;
}
cc_mutex_unlock(&ccbsnr_lock);
if (!(ccbsnr)) {
cc_log(LOG_ERROR, CC_MESSAGE_NAME " CCBS/CCBR reference not found!\n");
return;
}
snprintf(handlename, CAPI_MAX_STRING-1, "%u", ccbsnr->handle);
#ifdef CC_AST_HAS_EXT_CHAN_ALLOC
c = ast_channel_alloc(0, state, handlename, NULL,
#ifdef CC_AST_HAS_EXT2_CHAN_ALLOC
0, ccbsnr->exten, ccbsnr->context,
#ifdef CC_AST_HAS_LINKEDID_CHAN_ALLOC
NULL,
#endif
0,
#endif
"CCBSNR/%x", ccbsnr->handle);
#else
c = ast_channel_alloc(0);
#endif
if (c == NULL) {
cc_log(LOG_ERROR, "Unable to allocate channel!\n");
return;
}
#ifndef CC_AST_HAS_EXT_CHAN_ALLOC
#ifdef CC_AST_HAS_STRINGFIELD_IN_CHANNEL
ast_string_field_build(c, name, "CCBSNR/%x", ccbsnr->handle);
#else
snprintf(c->name, sizeof(c->name) - 1, "CCBSNR/%x",
ccbsnr->handle);
#endif
#endif
#ifndef CC_AST_HAS_VERSION_1_4
c->type = "CCBS/CCNR";
#endif
c->priority = ccbsnr->priority;
#ifdef CC_AST_HAS_VERSION_1_8
/*! \todo verify if necessary/complete */
c->connected.id.number.valid = 1;
ast_free (c->connected.id.number.str);
c->connected.id.number.str = ast_strdup(handlename);
ast_free (c->dialed.number.str);
c->dialed.number.str = ast_strdup (ccbsnr->exten);
#else
if (c->cid.cid_num) {
ast_free(c->cid.cid_num);
}
c->cid.cid_num = ast_strdup(handlename);
if (c->cid.cid_dnid) {
ast_free(c->cid.cid_dnid);
}
c->cid.cid_dnid = ast_strdup(ccbsnr->exten);
#endif
#ifndef CC_AST_HAS_EXT2_CHAN_ALLOC
cc_copy_string(c->context, ccbsnr->context, sizeof(c->context));
cc_copy_string(c->exten, ccbsnr->exten, sizeof(c->exten));
#endif
#ifndef CC_AST_HAS_EXT_CHAN_ALLOC
ast_setstate(c, state);
#endif
if (ast_pbx_start(c)) {
cc_log(LOG_ERROR, CC_MESSAGE_NAME " CCBS/CCNR: Unable to start pbx!\n");
} else {
cc_verbose(2, 1, VERBOSE_PREFIX_2 "contr%d: started PBX for CCBS/CCNR callback (%s/%s/%d)\n",
PLCI & 0xff, ccbsnr->context, ccbsnr->exten, ccbsnr->priority);
}
}
/*
* send Listen for supplementary to specified controller
*/
void ListenOnSupplementary(unsigned controller)
{
_cmsg CMSG;
MESSAGE_EXCHANGE_ERROR error;
int waitcount = 50;
error = capi_sendf(NULL, 0, CAPI_FACILITY_REQ, controller, get_capi_MessageNumber(),
"w(w(d))",
FACILITYSELECTOR_SUPPLEMENTARY,
0x0001, /* LISTEN */
0x0000079f
);
while (waitcount) {
error = capidev_check_wait_get_cmsg(&CMSG);
if (IS_FACILITY_CONF(&CMSG)) {
break;
}
usleep(30000);
waitcount--;
}
if (!waitcount) {
cc_log(LOG_ERROR,"Unable to supplementary-listen on contr%d (error=0x%x)\n",
controller, error);
}
}
/*
* CAPI FACILITY_IND supplementary services
*/
int handle_facility_indication_supplementary(
_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
_cword function;
_cword infoword = 0xffff;
unsigned char length;
_cdword handle;
_cword mode;
_cword rbref;
struct ccbsnr_s *ccbsnrlink;
char partybusy = 0;
int ret = 0;
function = read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[1]);
length = FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[3];
if (length >= 2) {
infoword = read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]);
}
/* first check functions without interface needed */
switch (function) {
case 0x000f: /* CCBS request */
handle = read_capi_dword(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[6]);
mode = read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[10]);
rbref = read_capi_dword(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[12]);
cc_verbose(1, 1, VERBOSE_PREFIX_3 "contr%d: PLCI=%#x CCBS request reason=0x%04x "
"handle=%d mode=0x%x rbref=0x%x\n",
PLCI & 0xff, PLCI, infoword, handle, mode, rbref);
show_capi_info(NULL, infoword);
if ((ccbsnrlink = get_ccbsnr_link(0, 0, handle, 0xffff, NULL, NULL)) == NULL) {
cc_log(LOG_WARNING, CC_MESSAGE_NAME " ccbs request indication without request!\n");
break;
}
if (infoword == 0) {
/* success */
ccbsnrlink->state = CCBSNR_ACTIVATED;
ccbsnrlink->rbref = rbref;
ccbsnrlink->mode = mode;
} else {
/* error */
ccbsnrlink->state = CCBSNR_AVAILABLE;
}
break;
case 0x0010: /* CCBS deactivate */
handle = read_capi_dword(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[6]);
cc_verbose(1, 1, VERBOSE_PREFIX_3 "contr%d: PLCI=%#x CCBS deactivate handle=0x%x reason=0x%x\n",
PLCI & 0xff, PLCI, handle, infoword);
show_capi_info(NULL, infoword);
if ((ccbsnrlink = get_ccbsnr_link(0, 0, handle, 0xffff, NULL, NULL)) == NULL) {
cc_log(LOG_WARNING, CC_MESSAGE_NAME " ccbs deactivate indication without request!\n");
break;
}
if (infoword == 0) {
/* success */
ccbsnrlink->state = CCBSNR_AVAILABLE;
ccbsnrlink->rbref = 0xdead;
ccbsnrlink->id = 0xdead;
ccbsnrlink->mode = 0;
}
break;
case 0x800d: /* CCBS erase call linkage ID */
cc_verbose(1, 1, VERBOSE_PREFIX_3 "contr%d: PLCI=%#x CCBS/CCNR erase id=0x%04x\n",
PLCI & 0xff, PLCI, infoword);
del_ccbsnr_id(PLCI, infoword);
break;
case 0x800e: /* CCBS status */
rbref = read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[6]);
cc_verbose(1, 1, VERBOSE_PREFIX_3 "contr%d: PLCI=%#x CCBS status ref=0x%04x mode=0x%x\n",
PLCI & 0xff, PLCI, rbref, infoword);
if (get_ccbsnr_link(CCBSNR_TYPE_CCBS, PLCI, 0, rbref, NULL, &partybusy) == NULL) {
cc_log(LOG_WARNING, CC_MESSAGE_NAME " CCBS status reference not found!\n");
}
capi_sendf(NULL, 0, CAPI_FACILITY_RESP, PLCI, HEADER_MSGNUM(CMSG),
"w(w(w))",
FACILITYSELECTOR_SUPPLEMENTARY,
0x800e, /* CCBS status */
(partybusy) ? 0x0000 : 0x0001
);
ret = 1;
break;
case 0x800f: /* CCBS remote user free */
rbref = read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[6]);
cc_verbose(1, 1, VERBOSE_PREFIX_3 "contr%d: PLCI=%#x CCBS remote user free ref=0x%04x mode=0x%x\n",
PLCI & 0xff, PLCI, rbref, infoword);
ccbsnr_remote_user_free(CMSG, CCBSNR_TYPE_CCBS, PLCI, rbref);
break;
case 0x8010: /* CCBS B-free */
rbref = read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[6]);
cc_verbose(1, 1, VERBOSE_PREFIX_3 "contr%d: PLCI=%#x CCBS B-free ref=0x%04x mode=0x%x\n",
PLCI & 0xff, PLCI, rbref, infoword);
break;
case 0x8011: /* CCBS erase (ref), deactivated by network */
rbref = read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[6]);
cc_verbose(1, 1, VERBOSE_PREFIX_3 "contr%d: PLCI=%#x CCBS deactivate ref=0x%04x mode=0x%x\n",
PLCI & 0xff, PLCI, rbref, infoword);
del_ccbsnr_ref(PLCI, rbref);
break;
case 0x8012: /* CCBS stop alerting */
cc_verbose(1, 1, VERBOSE_PREFIX_3 "contr%d: PLCI=%#x CCBS B-free ref=0x%04x\n",
PLCI & 0xff, PLCI, infoword);
break;
case 0x8014: {/* MWI indication, stateless */
const unsigned char* info = &FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4];
unsigned short basicService = read_capi_word(info); info += 2;
unsigned int numberOfMessages = read_capi_dword(info); info += 4;
unsigned short messageStatus = read_capi_word(info); info += 2;
unsigned short messageReference = read_capi_word(info); info += 2;
char controllingUserNumberName[AST_MAX_EXTENSION];
char controllingUserProvidedNumberName[AST_MAX_EXTENSION];
char mwiTimeName[AST_MAX_EXTENSION];
char mailboxName[AST_MAX_EXTENSION];
if (info[0] > 3) {
memcpy(controllingUserNumberName,
&info[4],
MIN(AST_MAX_EXTENSION-1, info[0] - 3));
controllingUserNumberName[MIN(AST_MAX_EXTENSION-1, info[0] - 3)] = 0;
} else {
controllingUserNumberName[0] = 0;
}
info += info[0] + 1;
if (info[0] > 3) {
memcpy(controllingUserProvidedNumberName,
&info[4],
MIN(AST_MAX_EXTENSION-1, info[0] - 3));
controllingUserProvidedNumberName[MIN(AST_MAX_EXTENSION-1, info[0] - 3)] = 0;
} else {
controllingUserProvidedNumberName[0] = 0;
}
info += info[0] + 1;
if (info[0] != 0) {
memcpy(mwiTimeName, &info[1], MIN(AST_MAX_EXTENSION-1, info[0]));
mwiTimeName[MIN(AST_MAX_EXTENSION-1, info[0])] = 0;
} else {
mwiTimeName[0] = 0;
}
info += info[0] + 1;
if (info[0] > 1) {
memcpy(mailboxName, &info[2], MIN(AST_MAX_EXTENSION-1, info[0]));
mailboxName[MIN(AST_MAX_EXTENSION-1, info[0]-1)] = 0;
} else {
mailboxName[0] = 0;
}
if (messageStatus == 0 || messageStatus == 1) {
cc_verbose(4, 0, VERBOSE_PREFIX_4 "CAPI%u Rx MWI %s for '%s@CAPI_Remote %s %s time '%s' %d messages ref %d service %d\n",
PLCI & 0xff,
messageStatus == 0 ? "add" : "del", mailboxName, controllingUserNumberName, controllingUserProvidedNumberName,
mwiTimeName, numberOfMessages, messageReference, basicService);
if (messageStatus == 0 && mailboxName[0] != 0) {
#if defined(CC_AST_HAS_EVENT_MWI)
struct ast_event *event;
if ((event = ast_event_new(AST_EVENT_MWI,
AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_STR, mailboxName,
AST_EVENT_IE_CONTEXT, AST_EVENT_IE_PLTYPE_STR, "CAPI_Remote",
AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, MAX(1,numberOfMessages),
AST_EVENT_IE_OLDMSGS, AST_EVENT_IE_PLTYPE_UINT, 0,
AST_EVENT_IE_END))) {
ast_event_queue_and_cache(event);
}
#endif
}
} else {
cc_verbose(4, 0, VERBOSE_PREFIX_1 "CAPI%u Rx MWI %s for '%s@default %s %s time '%s' service %d\n",
messageStatus == 0 ? "add" : "del", mailboxName, controllingUserNumberName, controllingUserProvidedNumberName,
mwiTimeName, basicService);
}
} return ret;
case 0x8000: /* Hold notification */
if ((i->isdnstate & CAPI_ISDN_STATE_EC) != 0) {
cc_verbose(4, 0, VERBOSE_PREFIX_1 "%s: EC reset\n", i->vname);
capi_echo_canceller(i, EC_FUNCTION_DISABLE);
capi_echo_canceller(i, EC_FUNCTION_ENABLE);
}
return ret;
default:
break;
}
if (!i) {
cc_verbose(4, 1, "CAPI: FACILITY_IND SUPPLEMENTARY "
"no interface for PLCI=%#x\n", PLCI);
return ret;
}
/* now functions bound to interface */
switch (function) {
case 0x0002: /* HOLD */
if (infoword != 0) {
/* reason != 0x0000 == problem */
i->onholdPLCI = 0;
i->isdnstate &= ~CAPI_ISDN_STATE_HOLD;
cc_log(LOG_WARNING, "%s: unable to put PLCI=%#x onhold, REASON = 0x%04x, maybe you need to subscribe for this...\n",
i->vname, PLCI, infoword);
show_capi_info(i, infoword);
} else {
/* reason = 0x0000 == call on hold */
i->state = CAPI_STATE_ONHOLD;
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: PLCI=%#x put onhold\n",
i->vname, PLCI);
}
break;
case 0x0003: /* RETRIEVE */
if (infoword != 0) {
cc_log(LOG_WARNING, "%s: unable to retrieve PLCI=%#x, REASON = 0x%04x\n",
i->vname, PLCI, infoword);
show_capi_info(i, infoword);
} else {
i->state = CAPI_STATE_CONNECTED;
i->PLCI = i->onholdPLCI;
i->onholdPLCI = 0;
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: PLCI=%#x retrieved\n",
i->vname, PLCI);
cc_start_b3(i);
}
break;
case 0x0006: /* ECT */
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: PLCI=%#x ECT Reason=0x%04x\n",
i->vname, PLCI, infoword);
if (infoword != 0) {
i->isdnstate &= ~CAPI_ISDN_STATE_ECT;
}
show_capi_info(i, infoword);
break;
case 0x0007: /* 3PTY begin */
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: PLCI=%#x 3PTY begin Reason=0x%04x\n",
i->vname, PLCI, infoword);
show_capi_info(i, infoword);
break;
case 0x0008: /* 3PTY end */
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: PLCI=%#x 3PTY end Reason=0x%04x\n",
i->vname, PLCI, infoword);
show_capi_info(i, infoword);
break;
case 0x000d: /* CD */
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: PLCI=%#x CD Service Reason=0x%04x\n",
i->vname, PLCI, infoword);
show_capi_info(i, infoword);
break;
case 0x8013: /* CCBS info retain */
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: PLCI=%#x CCBS unique id=0x%04x\n",
i->vname, PLCI, infoword);
new_ccbsnr_id(CCBSNR_TYPE_CCBS, PLCI, infoword, i);
break;
case 0x8015: /* CCNR info retain */
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: PLCI=%#x CCNR unique id=0x%04x\n",
i->vname, PLCI, infoword);
new_ccbsnr_id(CCBSNR_TYPE_CCNR, PLCI, infoword, i);
break;
case 0x000e: /* CCBS status */
case 0x000f: /* CCBS request */
case 0x800f: /* CCBS remote user free */
case 0x800d: /* CCBS erase call linkage ID */
case 0x8010: /* CCBS B-free */
case 0x8011: /* CCBS erase (ref), deactivated by network */
case 0x8012: /* CCBS stop alerting */
/* handled above */
break;
default:
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: unhandled FACILITY_IND supplementary function %04x\n",
i->vname, function);
}
return ret;
}
/*
* CAPI FACILITY_CONF supplementary
*/
void handle_facility_confirmation_supplementary(
_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt **i, struct ast_channel** interface_owner)
{
_cword function;
_cword serviceinfo;
char name[64];
if (*i) {
strncpy(name, (*i)->vname, sizeof(name) - 1);
} else {
snprintf(name, sizeof(name) - 1, "contr%d", PLCI & 0xff);
}
function = read_capi_word(&FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[1]);
serviceinfo = read_capi_word(&FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[4]);
switch(function) {
case 0x0002: /* HOLD */
if (serviceinfo == 0) {
cc_verbose(2, 0, VERBOSE_PREFIX_3 "%s: Call on hold (PLCI=%#x)\n",
name, PLCI);
}
break;
case 0x0003: /* RETRIEVE */
if (serviceinfo == 0) {
cc_verbose(2, 0, VERBOSE_PREFIX_3 "%s: Call retreived (PLCI=%#x)\n",
name, PLCI);
}
break;
case 0x0006: /* ECT */
if (serviceinfo == 0) {
cc_verbose(2, 0, VERBOSE_PREFIX_3 "%s: ECT confirmed (PLCI=%#x)\n",
name, PLCI);
}
break;
case 0x000d: /* CD */
cc_verbose(2, 1, VERBOSE_PREFIX_3 "%s: CD confirmation (0x%04x) (PLCI=%#x)\n",
name, serviceinfo, PLCI);
break;
case 0x000f: /* CCBS request */
cc_verbose(2, 1, VERBOSE_PREFIX_3 "%s: CCBS request confirmation (0x%04x) (PLCI=%#x)\n",
name, serviceinfo, PLCI);
break;
case 0x0012: /* CCBS call */
cc_verbose(2, 1, VERBOSE_PREFIX_3 "%s: CCBS call confirmation (0x%04x) (PLCI=%#x)\n",
name, serviceinfo, PLCI);
capidev_handle_connection_conf(i, PLCI, FACILITY_CONF_INFO(CMSG), HEADER_MSGNUM(CMSG), interface_owner);
break;
default:
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: unhandled FACILITY_CONF supplementary function %04x\n",
name, function);
}
}
/*
* capicommand 'ccpartybusy'
*/
int pbx_capi_ccpartybusy(struct ast_channel *c, char *data)
{
char *slinkageid, *yesno;
unsigned int linkid = 0;
struct ccbsnr_s *ccbsnr;
char partybusy = 0;
slinkageid = strsep(&data, COMMANDSEPARATOR);
yesno = data;
if (slinkageid) {
linkid = (unsigned int)strtoul(slinkageid, NULL, 0);
}
if ((yesno) && ast_true(yesno)) {
partybusy = 1;
}
cc_mutex_lock(&ccbsnr_lock);
ccbsnr = ccbsnr_list;
while (ccbsnr) {
if (((ccbsnr->plci & 0xff) == ((linkid >> 16) & 0xff)) &&
(ccbsnr->id == (linkid & 0xffff))) {
ccbsnr->partybusy = partybusy;
cc_verbose(1, 1, VERBOSE_PREFIX_3 CC_MESSAGE_NAME
": CCBS/NR id=0x%x busy set to %d\n", linkid, partybusy);
break;
}
ccbsnr = ccbsnr->next;
}
cc_mutex_unlock(&ccbsnr_lock);
return 0;
}
/*
* capicommand 'ccbsstop'
*/
int pbx_capi_ccbsstop(struct ast_channel *c, char *data)
{
char *slinkageid;
unsigned int linkid = 0;
unsigned int handle = 0;
MESSAGE_EXCHANGE_ERROR error;
_cword ref = 0xdead;
struct ccbsnr_s *ccbsnr;
slinkageid = data;
if (slinkageid) {
linkid = (unsigned int)strtoul(slinkageid, NULL, 0);
}
cc_verbose(3, 1, VERBOSE_PREFIX_3 CC_MESSAGE_NAME " ccbsstop: '%d'\n",
linkid);
cc_mutex_lock(&ccbsnr_lock);
ccbsnr = ccbsnr_list;
while (ccbsnr) {
if (((ccbsnr->plci & 0xff) == ((linkid >> 16) & 0xff)) &&
(ccbsnr->id == (linkid & 0xffff)) &&
(ccbsnr->type == CCBSNR_TYPE_CCBS) &&
(ccbsnr->state == CCBSNR_ACTIVATED)) {
ref = ccbsnr->rbref;
handle = ccbsnr->handle;
break;
}
ccbsnr = ccbsnr->next;
}
cc_mutex_unlock(&ccbsnr_lock);
if (ref != 0xdead) {
error = capi_sendf(NULL, 0, CAPI_FACILITY_REQ, (linkid >> 16) & 0xff,
get_capi_MessageNumber(),
"w(w(dw))",
FACILITYSELECTOR_SUPPLEMENTARY,
0x0010, /* CCBS deactivate */
handle, /* handle */
ref /* CCBS reference */
);
} else {
cc_verbose(3, 1, VERBOSE_PREFIX_3, CC_MESSAGE_NAME
" ccbsstop: linkid %d not found in table.\n", linkid);
}
return 0;
}
/*
* capicommand 'ccbs'
*/
int pbx_capi_ccbs(struct ast_channel *c, char *data)
{
char *slinkageid, *context, *exten, *priority;
unsigned int linkid = 0;
unsigned int handle, a;
char *result = "ERROR";
char *goodresult = "ACTIVATED";
MESSAGE_EXCHANGE_ERROR error;
unsigned int ccbsnrstate;
slinkageid = strsep(&data, COMMANDSEPARATOR);
context = strsep(&data, COMMANDSEPARATOR);
exten = strsep(&data, COMMANDSEPARATOR);
priority = data;
if (slinkageid) {
linkid = (unsigned int)strtoul(slinkageid, NULL, 0);
}
if ((!context) || (!exten) || (!priority)) {
cc_log(LOG_WARNING, CC_MESSAGE_NAME
" ccbs requires <context>|<exten>|<priority>\n");
return -1;
}
cc_verbose(3, 1, VERBOSE_PREFIX_3 CC_MESSAGE_NAME
" ccbs: '%d' '%s' '%s' '%s'\n",
linkid, context, exten, priority);
handle = select_ccbsnr_id(linkid, CCBSNR_TYPE_CCBS,
context, exten, (int)strtol(priority, NULL, 0));
if (handle > 0) {
error = capi_sendf(NULL, 0, CAPI_FACILITY_REQ, (linkid >> 16) & 0xff,
get_capi_MessageNumber(),
"w(w(dw))",
FACILITYSELECTOR_SUPPLEMENTARY,
0x000f, /* CCBS request */
handle, /* handle */
(linkid & 0xffff) /* CCBS linkage ID */
);
for (a = 0; a < 7; a++) {
/* Wait for CCBS request indication */
if (ast_safe_sleep_conditional(c, 500, ccbsnr_tell_activated,
(void *)(unsigned long)handle) != 0) {
/* we got a hangup */
cc_verbose(3, 1,
VERBOSE_PREFIX_3 CC_MESSAGE_NAME " ccbs: hangup.\n");
break;
}
}
if (get_ccbsnr_link(0, 0, handle, 0xffff, &ccbsnrstate, NULL) != NULL) {
if (ccbsnrstate == CCBSNR_ACTIVATED) {
result = goodresult;
}
}
} else {
cc_verbose(3, 1, VERBOSE_PREFIX_3, CC_MESSAGE_NAME
" ccbs: linkid %d not found in table.\n", linkid);
}
pbx_builtin_setvar_helper(c, "CCBSSTATUS", result);
return 0;
}
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