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chan-capi/chan_capi.c

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/*
* (CAPI*)
*
* An implementation of Common ISDN API 2.0 for
* Asterisk / OpenPBX.org
*
* Copyright (C) 2005-2007 Cytronics & Melware
*
* Armin Schindler <armin@melware.de>
*
* Reworked, but based on the work of
* Copyright (C) 2002-2005 Junghanns.NET GmbH
*
* Klaus-Peter Junghanns <kapejod@ns1.jnetdns.de>
*
* This program is free software and may be modified and
* distributed under the terms of the GNU Public License.
*/
#ifdef PBX_IS_OPBX
#ifdef HAVE_CONFIG_H
#include "confdefs.h"
#endif
#endif
#include <sys/time.h>
#include <sys/signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#ifdef PBX_IS_OPBX
#include "openpbx.h"
OPENPBX_FILE_VERSION("$HeadURL$", "$Revision$")
#include "openpbx/lock.h"
#include "openpbx/frame.h"
#include "openpbx/channel.h"
#include "openpbx/logger.h"
#include "openpbx/module.h"
#include "openpbx/pbx.h"
#include "openpbx/config.h"
#include "openpbx/options.h"
#include "openpbx/features.h"
#include "openpbx/utils.h"
#include "openpbx/cli.h"
#include "openpbx/rtp.h"
#include "openpbx/causes.h"
#include "openpbx/strings.h"
#include "openpbx/devicestate.h"
#include "openpbx/dsp.h"
#include "openpbx/xlaw.h"
#include "openpbx/chan_capi20.h"
#include "openpbx/chan_capi.h"
#include "openpbx/chan_capi_rtp.h"
#else
#include "config.h"
#ifdef CC_AST_HAS_VERSION_1_4
#include <asterisk.h>
#endif
#include <asterisk/lock.h>
#include <asterisk/frame.h>
#include <asterisk/channel.h>
#include <asterisk/logger.h>
#include <asterisk/module.h>
#include <asterisk/pbx.h>
#include <asterisk/config.h>
#include <asterisk/options.h>
#include <asterisk/features.h>
#include <asterisk/utils.h>
#include <asterisk/cli.h>
#include <asterisk/rtp.h>
#include <asterisk/causes.h>
#include <asterisk/strings.h>
#include <asterisk/dsp.h>
#include <asterisk/devicestate.h>
#ifdef CC_AST_HAS_VERSION_1_4
#include "asterisk/abstract_jb.h"
#include "asterisk/musiconhold.h"
#endif
#include "xlaw.h"
#include "chan_capi20.h"
#include "chan_capi.h"
#include "chan_capi_rtp.h"
#include "chan_capi_qsig.h"
#include "chan_capi_qsig_asn197ade.h"
#include "chan_capi_qsig_asn197no.h"
#endif
#ifdef PBX_IS_OPBX
#define CC_VERSION "cm-opbx-0.7"
#else
/* #define CC_VERSION "cm-x.y.z" */
#define CC_VERSION "$Revision$"
#endif
/*
* personal stuff
*/
#undef CAPI_APPLID_UNUSED
#define CAPI_APPLID_UNUSED 0xffffffff
unsigned capi_ApplID = CAPI_APPLID_UNUSED;
static _cword capi_MessageNumber;
static const char tdesc[] = "Common ISDN API Driver (" CC_VERSION ")";
static const char channeltype[] = "CAPI";
static const struct ast_channel_tech capi_tech;
#ifdef CC_AST_HAS_VERSION_1_4
#define AST_MODULE "chan_capi"
#else
#ifdef PBX_IS_OPBX
static char *ccdesc = "Common ISDN API for OpenPBX";
#else
static char *ccdesc = "Common ISDN API for Asterisk";
#endif
#endif
static char *commandtdesc = "CAPI command interface.\n"
"The dial command:\n"
"Dial(CAPI/g<group>/[<callerid>:]<destination>[/<params>])\n"
"Dial(CAPI/contr<controller>/[<callerid>:]<destination>[/<params>])\n"
"Dial(CAPI/<interface-name>/[<callerid>:]<destination>[/<params>])\n"
"\"params\" can be:\n"
"early B3:\"b\"=always, \"B\"=on successful calls only\n"
"\"d\":use callerID from capi.conf, \"o\":overlap sending number\n"
"\n"
"capicommand() where () can be:\n"
"\"progress\" send progress (for NT mode)\n"
"\"deflect|to_number\" forwards an unanswered call to number\n"
"\"malicous\" report a call of malicious nature\n"
"\"echocancel|<yes> or <no>\" echo-cancel provided by driver/hardware\n"
"\"echosquelch|<yes> or <no>\" very primitive echo-squelch by chan-capi\n"
"\"holdtype|<local> or <hold>\" set type of 'hold'\n"
"\"hold[|MYHOLDVAR]\" puts an answered call on hold\n"
"\"retrieve|${MYHOLDVAR}\" gets back the held call\n"
"\"ect|${MYHOLDVAR})\" explicit call transfer of call on hold\n"
"\"3pty_begin|${MYHOLDVAR})\" Three-Party-Conference (3PTY) with active and held call\n"
"\"receivefax|filename|stationID|headline\" receive a CAPIfax\n"
"\"sendfax|filename.sff|stationID|headline\" send a CAPIfax\n"
"Variables set after fax receive:\n"
"FAXSTATUS :0=OK, 1=Error\n"
"FAXREASON :B3 disconnect reason\n"
"FAXREASONTEXT :FAXREASON as text\n"
"FAXRATE :baud rate of fax connection\n"
"FAXRESOLUTION :0=standard, 1=high\n"
"FAXFORMAT :0=SFF\n"
"FAXPAGES :Number of pages received\n"
"FAXID :ID of the remote fax machine\n"
"Asterisk variables used/set by chan_capi:\n"
"BCHANNELINFO,CALLEDTON,_CALLERHOLDID,CALLINGSUBADDRESS,CALLEDSUBADDRESS\n"
"CONNECTEDNUMBER,FAXEXTEN,PRI_CAUSE,REDIRECTINGNUMBER,REDIRECTREASON\n"
"!!! for more details and samples, check the README of chan-capi !!!\n";
static char *commandapp = "capiCommand";
static char *commandsynopsis = "Execute special CAPI commands";
#ifndef CC_AST_HAS_VERSION_1_4
STANDARD_LOCAL_USER;
LOCAL_USER_DECL;
#endif
static int usecnt;
/*
* LOCKING RULES
* =============
*
* This channel driver uses several locks. One must be
* careful not to reverse the locking order, which will
* lead to a so called deadlock. Here is the locking order
* that must be followed:
*
* struct capi_pvt *i;
*
* 1. cc_mutex_lock(&i->owner->lock); **
*
* 2. cc_mutex_lock(&i->lock);
*
* 3. cc_mutex_lock(&iflock);
* 4. cc_mutex_lock(&messagenumber_lock);
* 5. cc_mutex_lock(&usecnt_lock);
* 6. cc_mutex_lock(&capi_put_lock);
*
*
* ** the PBX will call the callback functions with
* this lock locked. This lock protects the
* structure pointed to by 'i->owner'. Also note
* that calling some PBX functions will lock
* this lock!
*/
AST_MUTEX_DEFINE_STATIC(messagenumber_lock);
#ifndef CC_AST_HAS_VERSION_1_4
AST_MUTEX_DEFINE_STATIC(usecnt_lock);
#endif
AST_MUTEX_DEFINE_STATIC(iflock);
AST_MUTEX_DEFINE_STATIC(capi_put_lock);
AST_MUTEX_DEFINE_STATIC(verbose_lock);
static int capi_capability = AST_FORMAT_ALAW;
static pthread_t monitor_thread = (pthread_t)(0-1);
static struct capi_pvt *iflist = NULL;
static struct cc_capi_controller *capi_controllers[CAPI_MAX_CONTROLLERS + 1];
static int capi_num_controllers = 0;
static unsigned int capi_counter = 0;
static unsigned long capi_used_controllers = 0;
static char *emptyid = "\0";
static struct ast_channel *chan_for_task;
static int channel_task;
#define CAPI_CHANNEL_TASK_NONE 0
#define CAPI_CHANNEL_TASK_HANGUP 1
#define CAPI_CHANNEL_TASK_SOFTHANGUP 2
#define CAPI_CHANNEL_TASK_PICKUP 3
static char capi_national_prefix[AST_MAX_EXTENSION];
static char capi_international_prefix[AST_MAX_EXTENSION];
static char default_language[MAX_LANGUAGE] = "";
static int capidebug = 0;
#ifdef CC_AST_HAS_VERSION_1_4
/* Global jitterbuffer configuration - by default, jb is disabled */
static struct ast_jb_conf default_jbconf =
{
.flags = 0,
.max_size = -1,
.resync_threshold = -1,
.impl = ""
};
static struct ast_jb_conf global_jbconf;
static char global_mohinterpret[MAX_MUSICCLASS] = "default";
#endif
/* local prototypes */
#ifdef CC_AST_HAS_INDICATE_DATA
static int pbx_capi_indicate(struct ast_channel *c, int condition, const void *data, size_t datalen);
#else
static int pbx_capi_indicate(struct ast_channel *c, int condition);
#endif
/* external prototypes */
extern char *capi_info_string(unsigned int info);
/* */
#define return_on_no_interface(x) \
if (!i) { \
cc_verbose(4, 1, "CAPI: %s no interface for PLCI=%#x\n", x, PLCI); \
return; \
}
/*
* helper for <pbx>_verbose with different verbose settings
*/
void cc_verbose(int o_v, int c_d, char *text, ...)
{
char line[4096];
va_list ap;
va_start(ap, text);
vsnprintf(line, sizeof(line), text, ap);
va_end(ap);
if ((o_v == 0) || (option_verbose > o_v)) {
if ((!c_d) || ((c_d) && (capidebug))) {
cc_mutex_lock(&verbose_lock);
cc_pbx_verbose(line);
cc_mutex_unlock(&verbose_lock);
}
}
}
/*
* B protocol settings
*/
static struct {
_cword b1protocol;
_cword b2protocol;
_cword b3protocol;
_cstruct b1configuration;
_cstruct b2configuration;
_cstruct b3configuration;
} b_protocol_table[] =
{
{ 0x01, 0x01, 0x00, /* 0 */
NULL,
NULL,
NULL
},
{ 0x04, 0x04, 0x04, /* 1 */
NULL,
NULL,
NULL
},
{ 0x1f, 0x1f, 0x1f, /* 2 */
(_cstruct) "\x00",
/* (_cstruct) "\x04\x01\x00\x00\x02", */
(_cstruct) "\x06\x01\x00\x58\x02\x32\x00",
(_cstruct) "\x00"
}
};
#ifndef CC_HAVE_NO_GLOBALCONFIGURATION
/*
* set the global-configuration (b-channel operation)
*/
static _cstruct capi_set_global_configuration(struct capi_pvt *i)
{
unsigned short dtedce = 0;
unsigned char *buf = i->tmpbuf;
buf[0] = 2; /* len */
if (i->FaxState & CAPI_FAX_STATE_ACTIVE) {
if ((i->outgoing) && (!(i->FaxState & CAPI_FAX_STATE_SENDMODE)))
dtedce = 2;
if ((!(i->outgoing)) && ((i->FaxState & CAPI_FAX_STATE_SENDMODE)))
dtedce = 1;
}
write_capi_word(&buf[1], dtedce);
if (dtedce == 0)
buf = NULL;
return (_cstruct)buf;
}
#endif
/*
* command to string function
*/
static const char * capi_command_to_string(unsigned short wCmd)
{
enum { lowest_value = CAPI_P_MIN,
end_value = CAPI_P_MAX,
range = end_value - lowest_value,
};
#undef CHAN_CAPI_COMMAND_DESC
#define CHAN_CAPI_COMMAND_DESC(n, ENUM, value) \
[CAPI_P_REQ(ENUM)-(n)] = #ENUM "_REQ", \
[CAPI_P_CONF(ENUM)-(n)] = #ENUM "_CONF", \
[CAPI_P_IND(ENUM)-(n)] = #ENUM "_IND", \
[CAPI_P_RESP(ENUM)-(n)] = #ENUM "_RESP",
static const char * const table[range] = {
CAPI_COMMANDS(CHAN_CAPI_COMMAND_DESC, lowest_value)
};
wCmd -= lowest_value;
if (wCmd >= range) {
goto error;
}
if (table[wCmd] == NULL) {
goto error;
}
return table[wCmd];
error:
return "UNDEFINED";
}
/*
* show the text for a CAPI message info value
*/
static void show_capi_info(struct capi_pvt *i, _cword info)
{
char *p;
char *name = "?";
if (info == 0x0000) {
/* no error, do nothing */
return;
}
if (!(p = capi_info_string((unsigned int)info))) {
/* message not available */
return;
}
if (i)
name = i->vname;
cc_verbose(3, 0, VERBOSE_PREFIX_4 "%s: CAPI INFO 0x%04x: %s\n",
name, info, p);
return;
}
/*
* get a new capi message number automically
*/
_cword get_capi_MessageNumber(void)
{
_cword mn;
cc_mutex_lock(&messagenumber_lock);
capi_MessageNumber++;
if (capi_MessageNumber == 0) {
/* avoid zero */
capi_MessageNumber = 1;
}
mn = capi_MessageNumber;
cc_mutex_unlock(&messagenumber_lock);
return(mn);
}
/*
* write a capi message to capi device
*/
MESSAGE_EXCHANGE_ERROR _capi_put_cmsg(_cmsg *CMSG)
{
MESSAGE_EXCHANGE_ERROR error;
if (cc_mutex_lock(&capi_put_lock)) {
cc_log(LOG_WARNING, "Unable to lock capi put!\n");
return -1;
}
error = capi20_put_cmsg(CMSG);
if (cc_mutex_unlock(&capi_put_lock)) {
cc_log(LOG_WARNING, "Unable to unlock capi put!\n");
return -1;
}
if (error) {
cc_log(LOG_ERROR, "CAPI error sending %s (NCCI=%#x) (error=%#x %s)\n",
capi_cmsg2str(CMSG), (unsigned int)HEADER_CID(CMSG),
error, capi_info_string((unsigned int)error));
} else {
unsigned short wCmd = HEADER_CMD(CMSG);
if ((wCmd == CAPI_P_REQ(DATA_B3)) ||
(wCmd == CAPI_P_RESP(DATA_B3))) {
cc_verbose(7, 1, "%s\n", capi_cmsg2str(CMSG));
} else {
cc_verbose(4, 1, "%s\n", capi_cmsg2str(CMSG));
}
}
return error;
}
/*
* wait for a specific message
*/
static MESSAGE_EXCHANGE_ERROR capi_wait_conf(struct capi_pvt *i, unsigned short wCmd)
{
MESSAGE_EXCHANGE_ERROR error = 0;
struct timespec abstime;
unsigned char command, subcommand;
subcommand = wCmd & 0xff;
command = (wCmd & 0xff00) >> 8;
i->waitevent = (unsigned int)wCmd;
abstime.tv_sec = time(NULL) + 2;
abstime.tv_nsec = 0;
cc_verbose(4, 1, "%s: wait for %s (0x%x)\n",
i->vname, capi_cmd2str(command, subcommand), i->waitevent);
if (ast_cond_timedwait(&i->event_trigger, &i->lock, &abstime) != 0) {
error = -1;
cc_log(LOG_WARNING, "%s: timed out waiting for %s\n",
i->vname, capi_cmd2str(command, subcommand));
} else {
cc_verbose(4, 1, "%s: cond signal received for %s\n",
i->vname, capi_cmd2str(command, subcommand));
}
return error;
}
/*
* write a capi message and wait for CONF
* i->lock must be held
*/
MESSAGE_EXCHANGE_ERROR _capi_put_cmsg_wait_conf(struct capi_pvt *i, _cmsg *CMSG)
{
MESSAGE_EXCHANGE_ERROR error;
error = _capi_put_cmsg(CMSG);
if (!(error)) {
unsigned short wCmd = CAPICMD(CMSG->Command, CAPI_CONF);
error = capi_wait_conf(i, wCmd);
}
return error;
}
/*
* wait for B3 up
*/
static void capi_wait_for_b3_up(struct capi_pvt *i)
{
struct timespec abstime;
cc_mutex_lock(&i->lock);
if (!(i->isdnstate & CAPI_ISDN_STATE_B3_UP)) {
i->waitevent = CAPI_WAITEVENT_B3_UP;
abstime.tv_sec = time(NULL) + 2;
abstime.tv_nsec = 0;
cc_verbose(4, 1, "%s: wait for b3 up.\n",
i->vname);
if (ast_cond_timedwait(&i->event_trigger, &i->lock, &abstime) != 0) {
cc_log(LOG_WARNING, "%s: timed out waiting for b3 up.\n",
i->vname);
} else {
cc_verbose(4, 1, "%s: cond signal received for b3 up.\n",
i->vname);
}
}
cc_mutex_unlock(&i->lock);
}
/*
* wait for finishing answering state
*/
static void capi_wait_for_answered(struct capi_pvt *i)
{
struct timespec abstime;
cc_mutex_lock(&i->lock);
if (i->state == CAPI_STATE_ANSWERING) {
i->waitevent = CAPI_WAITEVENT_ANSWER_FINISH;
abstime.tv_sec = time(NULL) + 2;
abstime.tv_nsec = 0;
cc_verbose(4, 1, "%s: wait for finish answer.\n",
i->vname);
if (ast_cond_timedwait(&i->event_trigger, &i->lock, &abstime) != 0) {
cc_log(LOG_WARNING, "%s: timed out waiting for finish answer.\n",
i->vname);
} else {
cc_verbose(4, 1, "%s: cond signal received for finish answer.\n",
i->vname);
}
}
cc_mutex_unlock(&i->lock);
}
/*
* function to tell if fax activity has finished
*/
static int capi_tell_fax_finish(void *data)
{
struct capi_pvt *i = (struct capi_pvt *)data;
if (i->FaxState & CAPI_FAX_STATE_ACTIVE) {
return 1;
}
return 0;
}
/*
* wait some time for a new capi message
*/
static MESSAGE_EXCHANGE_ERROR capidev_check_wait_get_cmsg(_cmsg *CMSG)
{
MESSAGE_EXCHANGE_ERROR Info;
struct timeval tv;
repeat:
Info = capi_get_cmsg(CMSG, capi_ApplID);
#if (CAPI_OS_HINT == 1) || (CAPI_OS_HINT == 2)
/*
* For BSD allow controller 0:
*/
if ((HEADER_CID(CMSG) & 0xFF) == 0) {
HEADER_CID(CMSG) += capi_num_controllers;
}
#endif
/* if queue is empty */
if (Info == 0x1104) {
/* try waiting a maximum of 0.100 seconds for a message */
tv.tv_sec = 0;
tv.tv_usec = 10000;
Info = capi20_waitformessage(capi_ApplID, &tv);
if (Info == 0x0000)
goto repeat;
}
if ((Info != 0x0000) && (Info != 0x1104)) {
if (capidebug) {
cc_log(LOG_DEBUG, "Error waiting for cmsg... INFO = %#x\n", Info);
}
}
return Info;
}
/*
* send Listen to specified controller
*/
static unsigned ListenOnController(unsigned long CIPmask, unsigned controller)
{
MESSAGE_EXCHANGE_ERROR error;
_cmsg CMSG;
int waitcount = 100;
LISTEN_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), controller);
LISTEN_REQ_INFOMASK(&CMSG) = 0xffff; /* lots of info ;) + early B3 connect */
/* 0x00ff if no early B3 should be done */
LISTEN_REQ_CIPMASK(&CMSG) = CIPmask;
error = _capi_put_cmsg(&CMSG);
if (error)
goto done;
while (waitcount) {
error = capidev_check_wait_get_cmsg(&CMSG);
if (IS_LISTEN_CONF(&CMSG)) {
error = LISTEN_CONF_INFO(&CMSG);
break;
}
usleep(20000);
waitcount--;
}
if (!waitcount)
error = 0x100F;
done:
return error;
}
/*
* TCAP -> CIP Translation Table (TransferCapability->CommonIsdnProfile)
*/
static struct {
unsigned short tcap;
unsigned short cip;
unsigned char digital;
} translate_tcap2cip[] = {
{ PRI_TRANS_CAP_SPEECH, CAPI_CIPI_SPEECH, 0 },
{ PRI_TRANS_CAP_DIGITAL, CAPI_CIPI_DIGITAL, 1 },
{ PRI_TRANS_CAP_RESTRICTED_DIGITAL, CAPI_CIPI_RESTRICTED_DIGITAL, 1 },
{ PRI_TRANS_CAP_3K1AUDIO, CAPI_CIPI_3K1AUDIO, 0 },
{ PRI_TRANS_CAP_DIGITAL_W_TONES, CAPI_CIPI_DIGITAL_W_TONES, 1 },
{ PRI_TRANS_CAP_VIDEO, CAPI_CIPI_VIDEO, 1 }
};
static int tcap2cip(unsigned short tcap)
{
int x;
for (x = 0; x < sizeof(translate_tcap2cip) / sizeof(translate_tcap2cip[0]); x++) {
if (translate_tcap2cip[x].tcap == tcap)
return (int)translate_tcap2cip[x].cip;
}
return CAPI_CIPI_SPEECH;
}
static unsigned char tcap_is_digital(unsigned short tcap)
{
int x;
for (x = 0; x < sizeof(translate_tcap2cip) / sizeof(translate_tcap2cip[0]); x++) {
if (translate_tcap2cip[x].tcap == tcap)
return translate_tcap2cip[x].digital;
}
return 0;
}
/*
* CIP -> TCAP Translation Table (CommonIsdnProfile->TransferCapability)
*/
static struct {
unsigned short cip;
unsigned short tcap;
} translate_cip2tcap[] = {
{ CAPI_CIPI_SPEECH, PRI_TRANS_CAP_SPEECH },
{ CAPI_CIPI_DIGITAL, PRI_TRANS_CAP_DIGITAL },
{ CAPI_CIPI_RESTRICTED_DIGITAL, PRI_TRANS_CAP_RESTRICTED_DIGITAL },
{ CAPI_CIPI_3K1AUDIO, PRI_TRANS_CAP_3K1AUDIO },
{ CAPI_CIPI_7KAUDIO, PRI_TRANS_CAP_DIGITAL_W_TONES },
{ CAPI_CIPI_VIDEO, PRI_TRANS_CAP_VIDEO },
{ CAPI_CIPI_PACKET_MODE, PRI_TRANS_CAP_DIGITAL },
{ CAPI_CIPI_56KBIT_RATE_ADAPTION, PRI_TRANS_CAP_DIGITAL },
{ CAPI_CIPI_DIGITAL_W_TONES, PRI_TRANS_CAP_DIGITAL_W_TONES },
{ CAPI_CIPI_TELEPHONY, PRI_TRANS_CAP_SPEECH },
{ CAPI_CIPI_FAX_G2_3, PRI_TRANS_CAP_3K1AUDIO },
{ CAPI_CIPI_FAX_G4C1, PRI_TRANS_CAP_DIGITAL },
{ CAPI_CIPI_FAX_G4C2_3, PRI_TRANS_CAP_DIGITAL },
{ CAPI_CIPI_TELETEX_PROCESSABLE, PRI_TRANS_CAP_DIGITAL },
{ CAPI_CIPI_TELETEX_BASIC, PRI_TRANS_CAP_DIGITAL },
{ CAPI_CIPI_VIDEOTEX, PRI_TRANS_CAP_DIGITAL },
{ CAPI_CIPI_TELEX, PRI_TRANS_CAP_DIGITAL },
{ CAPI_CIPI_X400, PRI_TRANS_CAP_DIGITAL },
{ CAPI_CIPI_X200, PRI_TRANS_CAP_DIGITAL },
{ CAPI_CIPI_7K_TELEPHONY, PRI_TRANS_CAP_DIGITAL_W_TONES },
{ CAPI_CIPI_VIDEO_TELEPHONY_C1, PRI_TRANS_CAP_DIGITAL_W_TONES },
{ CAPI_CIPI_VIDEO_TELEPHONY_C2, PRI_TRANS_CAP_DIGITAL }
};
static unsigned short cip2tcap(int cip)
{
int x;
for (x = 0;x < sizeof(translate_cip2tcap) / sizeof(translate_cip2tcap[0]); x++) {
if (translate_cip2tcap[x].cip == (unsigned short)cip)
return translate_cip2tcap[x].tcap;
}
return 0;
}
/*
* TransferCapability to String conversion
*/
static char *transfercapability2str(int transfercapability)
{
switch(transfercapability) {
case PRI_TRANS_CAP_SPEECH:
return "SPEECH";
case PRI_TRANS_CAP_DIGITAL:
return "DIGITAL";
case PRI_TRANS_CAP_RESTRICTED_DIGITAL:
return "RESTRICTED_DIGITAL";
case PRI_TRANS_CAP_3K1AUDIO:
return "3K1AUDIO";
case PRI_TRANS_CAP_DIGITAL_W_TONES:
return "DIGITAL_W_TONES";
case PRI_TRANS_CAP_VIDEO:
return "VIDEO";
default:
return "UNKNOWN";
}
}
/*
* set task for a channel which need to be done out of lock
* ( after the capi thread loop )
*/
static void capi_channel_task(struct ast_channel *c, int task)
{
chan_for_task = c;
channel_task = task;
cc_verbose(4, 1, VERBOSE_PREFIX_4 "%s: set channel task to %d\n",
c->name, task);
}
/*
* Echo cancellation is for cards w/ integrated echo cancellation only
* (i.e. Eicon active cards support it)
*/
#define EC_FUNCTION_ENABLE 1
#define EC_FUNCTION_DISABLE 2
#define EC_FUNCTION_FREEZE 3
#define EC_FUNCTION_RESUME 4
#define EC_FUNCTION_RESET 5
#define EC_OPTION_DISABLE_NEVER 0
#define EC_OPTION_DISABLE_G165 (1<<2)
#define EC_OPTION_DISABLE_G164_OR_G165 (1<<1 | 1<<2)
#define EC_DEFAULT_TAIL 0 /* maximum */
static void capi_echo_canceller(struct ast_channel *c, int function)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
_cmsg CMSG;
char buf[10];
int ecAvail = 0;
if ((i->isdnstate & CAPI_ISDN_STATE_DISCONNECT))
return;
if (((function == EC_FUNCTION_ENABLE) && (i->isdnstate & CAPI_ISDN_STATE_EC)) ||
((function != EC_FUNCTION_ENABLE) && (!(i->isdnstate & CAPI_ISDN_STATE_EC)))) {
cc_verbose(3, 1, VERBOSE_PREFIX_4 "%s: echo canceller (PLCI=%#x, function=%d) unchanged\n",
i->vname, i->PLCI, function);
/* nothing to do */
return;
}
/* check for old echo-cancel configuration */
if ((i->ecSelector != FACILITYSELECTOR_ECHO_CANCEL) &&
(capi_controllers[i->controller]->broadband)) {
ecAvail = 1;
}
if ((i->ecSelector == FACILITYSELECTOR_ECHO_CANCEL) &&
(capi_controllers[i->controller]->echocancel)) {
ecAvail = 1;
}
/* If echo cancellation is not requested or supported, don't attempt to enable it */
if (!ecAvail || !i->doEC) {
return;
}
if (tcap_is_digital(c->transfercapability)) {
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: No echo canceller in digital mode (PLCI=%#x)\n",
i->vname, i->PLCI);
return;
}
cc_verbose(3, 0, VERBOSE_PREFIX_2 "%s: Setting up echo canceller (PLCI=%#x, function=%d, options=%d, tail=%d)\n",
i->vname, i->PLCI, function, i->ecOption, i->ecTail);
FACILITY_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
FACILITY_REQ_PLCI(&CMSG) = i->PLCI;
FACILITY_REQ_FACILITYSELECTOR(&CMSG) = i->ecSelector;
memset(buf, 0, sizeof(buf));
buf[0] = 9; /* msg size */
write_capi_word(&buf[1], function);
if (function == EC_FUNCTION_ENABLE) {
buf[3] = 6; /* echo cancel param struct size */
write_capi_word(&buf[4], i->ecOption); /* bit field - ignore echo canceller disable tone */
write_capi_word(&buf[6], i->ecTail); /* Tail length, ms */
/* buf 8 and 9 are "pre-delay lenght ms" */
i->isdnstate |= CAPI_ISDN_STATE_EC;
} else {
i->isdnstate &= ~CAPI_ISDN_STATE_EC;
}
FACILITY_REQ_FACILITYREQUESTPARAMETER(&CMSG) = (_cstruct)buf;
if (_capi_put_cmsg(&CMSG) != 0) {
return;
}
return;
}
/*
* turn on/off DTMF detection
*/
static int capi_detect_dtmf(struct ast_channel *c, int flag)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
MESSAGE_EXCHANGE_ERROR error;
_cmsg CMSG;
char buf[9];
if ((i->isdnstate & CAPI_ISDN_STATE_DISCONNECT))
return 0;
if (tcap_is_digital(c->transfercapability)) {
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: No dtmf-detect in digital mode (PLCI=%#x)\n",
i->vname, i->PLCI);
return 0;
}
if (((flag == 1) && (i->isdnstate & CAPI_ISDN_STATE_DTMF)) ||
((flag == 0) && (!(i->isdnstate & CAPI_ISDN_STATE_DTMF)))) {
cc_verbose(3, 1, VERBOSE_PREFIX_4 "%s: dtmf (PLCI=%#x, flag=%d) unchanged\n",
i->vname, i->PLCI, flag);
/* nothing to do */
return 0;
}
/* does the controller support dtmf? and do we want to use it? */
if ((capi_controllers[i->controller]->dtmf != 1) || (i->doDTMF != 0))
return 0;
memset(buf, 0, sizeof(buf));
cc_verbose(3, 0, VERBOSE_PREFIX_2 "%s: Setting up DTMF detector (PLCI=%#x, flag=%d)\n",
i->vname, i->PLCI, flag);
FACILITY_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
FACILITY_REQ_PLCI(&CMSG) = i->PLCI;
FACILITY_REQ_FACILITYSELECTOR(&CMSG) = FACILITYSELECTOR_DTMF;
buf[0] = 8; /* msg length */
if (flag == 1) {
write_capi_word(&buf[1], 1); /* start DTMF listen */
} else {
write_capi_word(&buf[1], 2); /* stop DTMF listen */
}
write_capi_word(&buf[3], CAPI_DTMF_DURATION);
write_capi_word(&buf[5], CAPI_DTMF_DURATION);
FACILITY_REQ_FACILITYREQUESTPARAMETER(&CMSG) = (_cstruct)buf;
if ((error = _capi_put_cmsg(&CMSG)) != 0) {
return error;
}
if (flag == 1) {
i->isdnstate |= CAPI_ISDN_STATE_DTMF;
} else {
i->isdnstate &= ~CAPI_ISDN_STATE_DTMF;
}
return 0;
}
/*
* queue a frame to PBX
*/
static int local_queue_frame(struct capi_pvt *i, struct ast_frame *f)
{
struct ast_channel *chan = i->owner;
unsigned char *wbuf;
int wbuflen;
if (chan == NULL) {
cc_log(LOG_ERROR, "No owner in local_queue_frame for %s\n",
i->vname);
return -1;
}
if (!(i->isdnstate & CAPI_ISDN_STATE_PBX)) {
/* if there is no PBX running yet,
we don't need any frames sent */
return -1;
}
if ((i->state == CAPI_STATE_DISCONNECTING) ||
(i->isdnstate & CAPI_ISDN_STATE_HANGUP)) {
cc_verbose(3, 1, VERBOSE_PREFIX_4 "%s: no queue_frame in state disconnecting for %d/%d\n",
i->vname, f->frametype, f->subclass);
return 0;
}
if ((capidebug) && (f->frametype != AST_FRAME_VOICE)) {
ast_frame_dump(i->vname, f, VERBOSE_PREFIX_3 "CAPI queue frame:");
}
if ((f->frametype == AST_FRAME_CONTROL) &&
(f->subclass == AST_CONTROL_HANGUP)) {
i->isdnstate |= CAPI_ISDN_STATE_HANGUP;
}
if (i->writerfd == -1) {
cc_log(LOG_ERROR, "No writerfd in local_queue_frame for %s\n",
i->vname);
return -1;
}
if (f->frametype != AST_FRAME_VOICE)
f->datalen = 0;
wbuflen = sizeof(struct ast_frame) + f->datalen;
wbuf = alloca(wbuflen);
memcpy(wbuf, f, sizeof(struct ast_frame));
if (f->datalen)
memcpy(wbuf + sizeof(struct ast_frame), f->data, f->datalen);
if (write(i->writerfd, wbuf, wbuflen) != wbuflen) {
cc_log(LOG_ERROR, "Could not write to pipe for %s\n",
i->vname);
}
return 0;
}
/*
* set a new name for this channel
*/
static void update_channel_name(struct capi_pvt *i)
{
char name[AST_CHANNEL_NAME];
snprintf(name, sizeof(name) - 1, "CAPI/%s/%s-%x",
i->name, i->dnid, capi_counter++);
ast_change_name(i->owner, name);
cc_verbose(3, 0, VERBOSE_PREFIX_3 "%s: Updated channel name: %s\n",
i->vname, name);
}
/*
* send digits via INFO_REQ
*/
static int capi_send_info_digits(struct capi_pvt *i, char *digits, int len)
{
MESSAGE_EXCHANGE_ERROR error;
_cmsg CMSG;
char buf[64];
int a;
memset(buf, 0, sizeof(buf));
INFO_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
INFO_REQ_PLCI(&CMSG) = i->PLCI;
if (len > (sizeof(buf) - 2))
len = sizeof(buf) - 2;
buf[0] = len + 1;
buf[1] = 0x80;
for (a = 0; a < len; a++) {
buf[a + 2] = digits[a];
}
INFO_REQ_CALLEDPARTYNUMBER(&CMSG) = (_cstruct)buf;
if ((error = _capi_put_cmsg(&CMSG)) != 0) {
return error;
}
cc_verbose(3, 1, VERBOSE_PREFIX_4 "%s: sent CALLEDPARTYNUMBER INFO digits = '%s' (PLCI=%#x)\n",
i->vname, buf + 2, i->PLCI);
return 0;
}
#ifdef CC_AST_HAS_VERSION_1_4
/*
* begin send DMTF
*/
static int pbx_capi_send_digit_begin(struct ast_channel *c, char digit)
{
/* Not needed */
return 0;
}
#endif
/*
* send a DTMF digit
*/
#if defined(CC_AST_HAS_VERSION_1_4) && defined(CC_AST_HAS_SEND_DIGIT_END_DURATION)
static int pbx_capi_send_digit(struct ast_channel *c, char digit, unsigned int duration)
#else
static int pbx_capi_send_digit(struct ast_channel *c, char digit)
#endif
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
_cmsg CMSG;
char buf[10];
char did[2];
int ret = 0;
if (i == NULL) {
cc_log(LOG_ERROR, "No interface!\n");
return -1;
}
memset(buf, 0, sizeof(buf));
cc_mutex_lock(&i->lock);
if ((c->_state == AST_STATE_DIALING) &&
(i->state != CAPI_STATE_DISCONNECTING)) {
did[0] = digit;
did[1] = 0;
strncat(i->dnid, did, sizeof(i->dnid) - 1);
update_channel_name(i);
if ((i->isdnstate & CAPI_ISDN_STATE_SETUP_ACK) &&
(i->doOverlap == 0)) {
ret = capi_send_info_digits(i, &digit, 1);
} else {
/* if no SETUP-ACK yet, add it to the overlap list */
strncat(i->overlapdigits, &digit, 1);
i->doOverlap = 1;
}
cc_mutex_unlock(&i->lock);
return ret;
}
if ((i->state == CAPI_STATE_CONNECTED) && (i->isdnstate & CAPI_ISDN_STATE_B3_UP)) {
/* we have a real connection, so send real DTMF */
if ((capi_controllers[i->controller]->dtmf == 0) || (i->doDTMF > 0)) {
/* let * fake it */
cc_mutex_unlock(&i->lock);
return -1;
}
FACILITY_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
FACILITY_REQ_PLCI(&CMSG) = i->NCCI;
FACILITY_REQ_FACILITYSELECTOR(&CMSG) = FACILITYSELECTOR_DTMF;
buf[0] = 8;
write_capi_word(&buf[1], 3); /* send DTMF digit */
/* XXX: duration comes from asterisk in 1.4 */
write_capi_word(&buf[3], CAPI_DTMF_DURATION);
write_capi_word(&buf[5], CAPI_DTMF_DURATION);
buf[7] = 1;
buf[8] = digit;
FACILITY_REQ_FACILITYREQUESTPARAMETER(&CMSG) = (_cstruct)buf;
if ((ret = _capi_put_cmsg(&CMSG)) == 0) {
cc_verbose(3, 0, VERBOSE_PREFIX_4 "%s: sent dtmf '%c'\n",
i->vname, digit);
}
}
cc_mutex_unlock(&i->lock);
return ret;
}
/*
* send ALERT to ISDN line
*/
static int pbx_capi_alert(struct ast_channel *c)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
_cmsg CMSG;
if ((i->state != CAPI_STATE_INCALL) &&
(i->state != CAPI_STATE_DID)) {
cc_verbose(2, 1, VERBOSE_PREFIX_3 "%s: attempting ALERT in state %d\n",
i->vname, i->state);
return -1;
}
ALERT_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
ALERT_REQ_PLCI(&CMSG) = i->PLCI;
if (_capi_put_cmsg(&CMSG) != 0) {
return -1;
}
i->state = CAPI_STATE_ALERTING;
ast_setstate(c, AST_STATE_RING);
return 0;
}
/*
* cleanup the interface
*/
static void interface_cleanup(struct capi_pvt *i)
{
if (!i)
return;
cc_verbose(2, 1, VERBOSE_PREFIX_2 "%s: Interface cleanup PLCI=%#x\n",
i->vname, i->PLCI);
if (i->readerfd != -1) {
close(i->readerfd);
i->readerfd = -1;
}
if (i->writerfd != -1) {
close(i->writerfd);
i->writerfd = -1;
}
i->isdnstate = 0;
i->cause = 0;
i->FaxState &= ~CAPI_FAX_STATE_MASK;
i->PLCI = 0;
i->MessageNumber = 0;
i->NCCI = 0;
i->onholdPLCI = 0;
i->doEC = i->doEC_global;
memset(i->cid, 0, sizeof(i->cid));
memset(i->dnid, 0, sizeof(i->dnid));
i->cid_ton = 0;
i->rtpcodec = 0;
if (i->rtp) {
ast_rtp_destroy(i->rtp);
i->rtp = NULL;
}
i->owner = NULL;
return;
}
/*
* disconnect b3 and wait for confirmation
*/
static void cc_disconnect_b3(struct capi_pvt *i, int wait)
{
_cmsg CMSG;
struct timespec abstime;
if (!(i->isdnstate & (CAPI_ISDN_STATE_B3_UP | CAPI_ISDN_STATE_B3_PEND)))
return;
DISCONNECT_B3_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
DISCONNECT_B3_REQ_NCCI(&CMSG) = i->NCCI;
if (wait) {
cc_mutex_lock(&i->lock);
_capi_put_cmsg_wait_conf(i, &CMSG);
} else {
_capi_put_cmsg(&CMSG);
return;
}
/* wait for the B3 layer to go down */
if ((i->isdnstate & (CAPI_ISDN_STATE_B3_UP | CAPI_ISDN_STATE_B3_PEND))) {
i->waitevent = CAPI_WAITEVENT_B3_DOWN;
abstime.tv_sec = time(NULL) + 2;
abstime.tv_nsec = 0;
cc_verbose(4, 1, "%s: wait for b3 down.\n",
i->vname);
if (ast_cond_timedwait(&i->event_trigger, &i->lock, &abstime) != 0) {
cc_log(LOG_WARNING, "%s: timed out waiting for b3 down.\n",
i->vname);
} else {
cc_verbose(4, 1, "%s: cond signal received for b3 down.\n",
i->vname);
}
}
cc_mutex_unlock(&i->lock);
if ((i->isdnstate & CAPI_ISDN_STATE_B3_UP)) {
cc_log(LOG_ERROR, "capi disconnect b3: didn't disconnect NCCI=0x%08x\n",
i->NCCI);
}
return;
}
/*
* send CONNECT_B3_REQ
*/
static void cc_start_b3(struct capi_pvt *i)
{
_cmsg CMSG;
if (!(i->isdnstate & (CAPI_ISDN_STATE_B3_UP | CAPI_ISDN_STATE_B3_PEND))) {
i->isdnstate |= CAPI_ISDN_STATE_B3_PEND;
CONNECT_B3_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
CONNECT_B3_REQ_PLCI(&CMSG) = i->PLCI;
CONNECT_B3_REQ_NCPI(&CMSG) = capi_rtp_ncpi(i);
_capi_put_cmsg(&CMSG);
cc_verbose(4, 1, VERBOSE_PREFIX_3 "%s: sent CONNECT_B3_REQ PLCI=%#x\n",
i->vname, i->PLCI);
}
}
/*
* start early B3
*/
static void start_early_b3(struct capi_pvt *i)
{
if (i->doB3 != CAPI_B3_DONT) {
/* we do early B3 Connect */
cc_start_b3(i);
}
}
/*
* signal 'progress' to PBX
*/
static void send_progress(struct capi_pvt *i)
{
struct ast_frame fr = { AST_FRAME_CONTROL, };
start_early_b3(i);
if (!(i->isdnstate & CAPI_ISDN_STATE_PROGRESS)) {
i->isdnstate |= CAPI_ISDN_STATE_PROGRESS;
fr.subclass = AST_CONTROL_PROGRESS;
local_queue_frame(i, &fr);
}
return;
}
/*
* hangup a line (CAPI messages)
* (this must be called with i->lock held)
*/
static void capi_activehangup(struct ast_channel *c, int state)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
_cmsg CMSG;
const char *cause;
i->cause = c->hangupcause;
if ((cause = pbx_builtin_getvar_helper(c, "PRI_CAUSE"))) {
i->cause = atoi(cause);
}
if ((i->isdnstate & CAPI_ISDN_STATE_ECT)) {
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: activehangup ECT call\n",
i->vname);
/* we do nothing, just wait for DISCONNECT_IND */
return;
}
cc_verbose(2, 1, VERBOSE_PREFIX_3 "%s: activehangingup (cause=%d) for PLCI=%#x\n",
i->vname, i->cause, i->PLCI);
if ((state == CAPI_STATE_ALERTING) ||
(state == CAPI_STATE_DID) || (state == CAPI_STATE_INCALL)) {
CONNECT_RESP_HEADER(&CMSG, capi_ApplID, i->MessageNumber, 0);
CONNECT_RESP_PLCI(&CMSG) = i->PLCI;
CONNECT_RESP_REJECT(&CMSG) = (i->cause) ? (0x3480 | (i->cause & 0x7f)) : 2;
_capi_put_cmsg(&CMSG);
return;
}
/* active disconnect */
if ((i->isdnstate & CAPI_ISDN_STATE_B3_UP)) {
cc_disconnect_b3(i, 0);
return;
}
if ((state == CAPI_STATE_CONNECTED) || (state == CAPI_STATE_CONNECTPENDING) ||
(state == CAPI_STATE_ANSWERING) || (state == CAPI_STATE_ONHOLD)) {
if (i->PLCI == 0) {
/* CONNECT_CONF not received yet? */
capi_wait_conf(i, CAPI_CONNECT_CONF);
}
DISCONNECT_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
DISCONNECT_REQ_PLCI(&CMSG) = i->PLCI;
_capi_put_cmsg_wait_conf(i, &CMSG);
}
return;
}
/*
* PBX tells us to hangup a line
*/
static int pbx_capi_hangup(struct ast_channel *c)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
int cleanup = 0;
int state;
/*
* hmm....ok...this is called to free the capi interface (passive disconnect)
* or to bring down the channel (active disconnect)
*/
if (i == NULL) {
cc_log(LOG_ERROR, "channel has no interface!\n");
return -1;
}
cc_mutex_lock(&i->lock);
state = i->state;
cc_verbose(3, 0, VERBOSE_PREFIX_2 "%s: CAPI Hangingup for PLCI=%#x in state %d\n",
i->vname, i->PLCI, state);
/* are we down, yet? */
if (state != CAPI_STATE_DISCONNECTED) {
/* no */
i->state = CAPI_STATE_DISCONNECTING;
} else {
cleanup = 1;
}
if ((i->doDTMF > 0) && (i->vad != NULL)) {
ast_dsp_free(i->vad);
i->vad = NULL;
}
if (cleanup) {
/* disconnect already done, so cleanup */
interface_cleanup(i);
} else {
/* not disconnected yet, we must actively do it */
capi_activehangup(c, state);
}
cc_mutex_unlock(&i->lock);
CC_CHANNEL_PVT(c) = NULL;
ast_setstate(c, AST_STATE_DOWN);
#ifdef CC_AST_HAS_VERSION_1_4
ast_atomic_fetchadd_int(&usecnt, -1);
#else
cc_mutex_lock(&usecnt_lock);
usecnt--;
cc_mutex_unlock(&usecnt_lock);
#endif
ast_update_use_count();
return 0;
}
/*
* convert a number
*/
static char *capi_number_func(unsigned char *data, unsigned int strip, char *buf)
{
unsigned int len;
if (data[0] == 0xff) {
len = read_capi_word(&data[1]);
data += 2;
} else {
len = data[0];
data += 1;
}
if (len > (AST_MAX_EXTENSION - 1))
len = (AST_MAX_EXTENSION - 1);
/* convert a capi struct to a \0 terminated string */
if ((!len) || (len < strip))
return NULL;
len = len - strip;
data += strip;
memcpy(buf, data, len);
buf[len] = '\0';
return buf;
}
#define capi_number(data, strip) \
capi_number_func(data, strip, alloca(AST_MAX_EXTENSION))
/*
* parse the dialstring
*/
static void parse_dialstring(char *buffer, char **interface, char **dest, char **param, char **ocid)
{
int cp = 0;
char *buffer_p = buffer;
char *oc;
/* interface is the first part of the string */
*interface = buffer;
*dest = emptyid;
*param = emptyid;
*ocid = NULL;
while (*buffer_p) {
if (*buffer_p == '/') {
*buffer_p = 0;
buffer_p++;
if (cp == 0) {
*dest = buffer_p;
cp++;
} else if (cp == 1) {
*param = buffer_p;
cp++;
} else {
cc_log(LOG_WARNING, "Too many parts in dialstring '%s'\n",
buffer);
}
continue;
}
buffer_p++;
}
if ((oc = strchr(*dest, ':')) != NULL) {
*ocid = *dest;
*oc = '\0';
*dest = oc + 1;
}
cc_verbose(3, 1, VERBOSE_PREFIX_4 "parsed dialstring: '%s' '%s' '%s' '%s'\n",
*interface, (*ocid) ? *ocid : "NULL", *dest, *param);
return;
}
/*
* PBX tells us to make a call
*/
static int pbx_capi_call(struct ast_channel *c, char *idest, int timeout)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
char *dest, *interface, *param, *ocid;
char buffer[AST_MAX_EXTENSION];
char called[AST_MAX_EXTENSION], calling[AST_MAX_EXTENSION];
char callerid[AST_MAX_EXTENSION];
char bchaninfo[3];
int CLIR;
int callernplan = 0;
int use_defaultcid = 0;
const char *ton, *p;
char *osa = NULL;
char *dsa = NULL;
char callingsubaddress[AST_MAX_EXTENSION];
char calledsubaddress[AST_MAX_EXTENSION];
int doqsig;
_cmsg CMSG;
MESSAGE_EXCHANGE_ERROR error;
cc_copy_string(buffer, idest, sizeof(buffer));
parse_dialstring(buffer, &interface, &dest, &param, &ocid);
/* init param settings */
i->doB3 = CAPI_B3_DONT;
i->doOverlap = 0;
memset(i->overlapdigits, 0, sizeof(i->overlapdigits));
doqsig = i->qsigfeat;
/* parse the parameters */
while ((param) && (*param)) {
switch (*param) {
case 'b': /* always B3 */
if (i->doB3 != CAPI_B3_DONT)
cc_log(LOG_WARNING, "B3 already set in '%s'\n", idest);
i->doB3 = CAPI_B3_ALWAYS;
break;
case 'B': /* only do B3 on successfull calls */
if (i->doB3 != CAPI_B3_DONT)
cc_log(LOG_WARNING, "B3 already set in '%s'\n", idest);
i->doB3 = CAPI_B3_ON_SUCCESS;
break;
case 'o': /* overlap sending of digits */
if (i->doOverlap)
cc_log(LOG_WARNING, "Overlap already set in '%s'\n", idest);
i->doOverlap = 1;
break;
case 'd': /* use default cid */
if (use_defaultcid)
cc_log(LOG_WARNING, "Default CID already set in '%s'\n", idest);
use_defaultcid = 1;
break;
case 'q': /* disable QSIG */
cc_verbose(4, 0, VERBOSE_PREFIX_4 "%s: QSIG extensions for this call disabled\n",
i->vname);
doqsig = 0;
break;
default:
cc_log(LOG_WARNING, "Unknown parameter '%c' in '%s', ignoring.\n",
*param, idest);
}
param++;
}
if (((!dest) || (!dest[0])) && (i->doB3 != CAPI_B3_ALWAYS)) {
cc_log(LOG_ERROR, "No destination or dialtone requested in '%s'\n", idest);
return -1;
}
CLIR = c->cid.cid_pres;
callernplan = c->cid.cid_ton & 0x7f;
if ((ton = pbx_builtin_getvar_helper(c, "CALLERTON"))) {
callernplan = atoi(ton) & 0x7f;
}
cc_verbose(1, 1, VERBOSE_PREFIX_2 "%s: Call %s %s%s (pres=0x%02x, ton=0x%02x)\n",
i->vname, c->name, i->doB3 ? "with B3 ":" ",
i->doOverlap ? "overlap":"", CLIR, callernplan);
if ((p = pbx_builtin_getvar_helper(c, "CALLINGSUBADDRESS"))) {
callingsubaddress[0] = strlen(p) + 1;
callingsubaddress[1] = 0x80;
strncpy(&callingsubaddress[2], p, sizeof(callingsubaddress) - 3);
osa = callingsubaddress;
}
if ((p = pbx_builtin_getvar_helper(c, "CALLEDSUBADDRESS"))) {
calledsubaddress[0] = strlen(p) + 1;
calledsubaddress[1] = 0x80;
strncpy(&calledsubaddress[2], p, sizeof(calledsubaddress) - 3);
dsa = calledsubaddress;
}
i->MessageNumber = get_capi_MessageNumber();
CONNECT_REQ_HEADER(&CMSG, capi_ApplID, i->MessageNumber, i->controller);
CONNECT_REQ_CONTROLLER(&CMSG) = i->controller;
CONNECT_REQ_CIPVALUE(&CMSG) = tcap2cip(c->transfercapability);
if (tcap_is_digital(c->transfercapability)) {
i->bproto = CC_BPROTO_TRANSPARENT;
cc_verbose(4, 0, VERBOSE_PREFIX_2 "%s: is digital call, set proto to TRANSPARENT\n",
i->vname);
}
if ((i->doOverlap) && (strlen(dest))) {
cc_copy_string(i->overlapdigits, dest, sizeof(i->overlapdigits));
called[0] = 1;
} else {
i->doOverlap = 0;
called[0] = strlen(dest) + 1;
}
called[1] = 0x80;
strncpy(&called[2], dest, sizeof(called) - 3);
CONNECT_REQ_CALLEDPARTYNUMBER(&CMSG) = (_cstruct)called;
CONNECT_REQ_CALLEDPARTYSUBADDRESS(&CMSG) = (_cstruct)dsa;
if (c->cid.cid_num) {
cc_copy_string(callerid, c->cid.cid_num, sizeof(callerid));
} else {
memset(callerid, 0, sizeof(callerid));
}
if (use_defaultcid) {
cc_copy_string(callerid, i->defaultcid, sizeof(callerid));
} else if (ocid) {
cc_copy_string(callerid, ocid, sizeof(callerid));
}
cc_copy_string(i->cid, callerid, sizeof(i->cid));
calling[0] = strlen(callerid) + 2;
calling[1] = callernplan;
calling[2] = 0x80 | (CLIR & 0x63);
strncpy(&calling[3], callerid, sizeof(calling) - 4);
CONNECT_REQ_CALLINGPARTYNUMBER(&CMSG) = (_cstruct)calling;
CONNECT_REQ_CALLINGPARTYSUBADDRESS(&CMSG) = (_cstruct)osa;
CONNECT_REQ_B1PROTOCOL(&CMSG) = b_protocol_table[i->bproto].b1protocol;
CONNECT_REQ_B2PROTOCOL(&CMSG) = b_protocol_table[i->bproto].b2protocol;
CONNECT_REQ_B3PROTOCOL(&CMSG) = b_protocol_table[i->bproto].b3protocol;
CONNECT_REQ_B1CONFIGURATION(&CMSG) = b_protocol_table[i->bproto].b1configuration;
CONNECT_REQ_B2CONFIGURATION(&CMSG) = b_protocol_table[i->bproto].b2configuration;
CONNECT_REQ_B3CONFIGURATION(&CMSG) = b_protocol_table[i->bproto].b3configuration;
bchaninfo[0] = 2;
bchaninfo[1] = 0x0;
bchaninfo[2] = 0x0;
CONNECT_REQ_BCHANNELINFORMATION(&CMSG) = (_cstruct)bchaninfo; /* 0 */
if (doqsig) {
unsigned char *facilityarray = alloca(CAPI_MAX_FACILITYDATAARRAY_SIZE);
cc_qsig_add_call_setup_data(facilityarray, i);
CONNECT_REQ_FACILITYDATAARRAY(&CMSG) = facilityarray;
}
cc_mutex_lock(&i->lock);
i->outgoing = 1;
i->isdnstate |= CAPI_ISDN_STATE_PBX;
i->state = CAPI_STATE_CONNECTPENDING;
ast_setstate(c, AST_STATE_DIALING);
if ((error = _capi_put_cmsg(&CMSG))) {
i->state = CAPI_STATE_DISCONNECTED;
ast_setstate(c, AST_STATE_RESERVED);
cc_mutex_unlock(&i->lock);
return error;
}
cc_mutex_unlock(&i->lock);
/* now we shall return .... the rest has to be done by handle_msg */
return 0;
}
/*
* answer a capi call
*/
static int capi_send_answer(struct ast_channel *c, _cstruct b3conf)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
_cmsg CMSG;
char buf[CAPI_MAX_STRING];
const char *dnid;
const char *connectednumber;
if ((i->isdnmode == CAPI_ISDNMODE_DID) &&
((strlen(i->incomingmsn) < strlen(i->dnid)) &&
(strcmp(i->incomingmsn, "*")))) {
dnid = i->dnid + strlen(i->incomingmsn);
} else {
dnid = i->dnid;
}
if ((connectednumber = pbx_builtin_getvar_helper(c, "CONNECTEDNUMBER"))) {
dnid = connectednumber;
}
CONNECT_RESP_HEADER(&CMSG, capi_ApplID, i->MessageNumber, 0);
CONNECT_RESP_PLCI(&CMSG) = i->PLCI;
CONNECT_RESP_REJECT(&CMSG) = 0;
if (strlen(dnid)) {
buf[0] = strlen(dnid) + 2;
buf[1] = 0x00;
buf[2] = 0x80;
strncpy(&buf[3], dnid, sizeof(buf) - 4);
CONNECT_RESP_CONNECTEDNUMBER(&CMSG) = (_cstruct)buf;
}
CONNECT_RESP_B1PROTOCOL(&CMSG) = b_protocol_table[i->bproto].b1protocol;
CONNECT_RESP_B2PROTOCOL(&CMSG) = b_protocol_table[i->bproto].b2protocol;
CONNECT_RESP_B3PROTOCOL(&CMSG) = b_protocol_table[i->bproto].b3protocol;
CONNECT_RESP_B1CONFIGURATION(&CMSG) = b_protocol_table[i->bproto].b1configuration;
CONNECT_RESP_B2CONFIGURATION(&CMSG) = b_protocol_table[i->bproto].b2configuration;
if (!b3conf)
b3conf = b_protocol_table[i->bproto].b3configuration;
CONNECT_RESP_B3CONFIGURATION(&CMSG) = b3conf;
#ifndef CC_HAVE_NO_GLOBALCONFIGURATION
CONNECT_RESP_GLOBALCONFIGURATION(&CMSG) = capi_set_global_configuration(i);
#endif
cc_verbose(3, 0, VERBOSE_PREFIX_2 "%s: Answering for %s\n",
i->vname, dnid);
if (_capi_put_cmsg(&CMSG) != 0) {
return -1;
}
i->state = CAPI_STATE_ANSWERING;
i->doB3 = CAPI_B3_DONT;
i->outgoing = 0;
return 0;
}
/*
* PBX tells us to answer a call
*/
static int pbx_capi_answer(struct ast_channel *c)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
int ret;
i->bproto = CC_BPROTO_TRANSPARENT;
if (i->rtp) {
if (!tcap_is_digital(c->transfercapability))
i->bproto = CC_BPROTO_RTP;
}
ret = capi_send_answer(c, NULL);
return ret;
}
/*
* read for a channel
*/
static struct ast_frame *pbx_capi_read(struct ast_channel *c)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
struct ast_frame *f;
int readsize;
if (i == NULL) {
cc_log(LOG_ERROR, "channel has no interface\n");
return NULL;
}
if (i->readerfd == -1) {
cc_log(LOG_ERROR, "no readerfd\n");
return NULL;
}
f = &i->f;
f->frametype = AST_FRAME_NULL;
f->subclass = 0;
readsize = read(i->readerfd, f, sizeof(struct ast_frame));
if (readsize != sizeof(struct ast_frame)) {
cc_log(LOG_ERROR, "did not read a whole frame\n");
}
f->mallocd = 0;
f->data = NULL;
if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP)) {
return NULL;
}
if ((f->frametype == AST_FRAME_VOICE) && (f->datalen > 0)) {
if (f->datalen > sizeof(i->frame_data)) {
cc_log(LOG_ERROR, "f.datalen(%d) greater than space of frame_data(%d)\n",
f->datalen, sizeof(i->frame_data));
f->datalen = sizeof(i->frame_data);
}
readsize = read(i->readerfd, i->frame_data + AST_FRIENDLY_OFFSET, f->datalen);
if (readsize != f->datalen) {
cc_log(LOG_ERROR, "did not read whole frame data\n");
}
f->data = i->frame_data + AST_FRIENDLY_OFFSET;
if ((i->doDTMF > 0) && (i->vad != NULL) ) {
f = ast_dsp_process(c, i->vad, f);
}
}
return f;
}
/*
* PBX tells us to write for a channel
*/
static int pbx_capi_write(struct ast_channel *c, struct ast_frame *f)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
MESSAGE_EXCHANGE_ERROR error;
_cmsg CMSG;
int j = 0;
unsigned char *buf;
struct ast_frame *fsmooth;
int txavg=0;
int ret = 0;
if (!i) {
cc_log(LOG_ERROR, "channel has no interface\n");
return -1;
}
if ((!(i->isdnstate & CAPI_ISDN_STATE_B3_UP)) || (!i->NCCI) ||
((i->isdnstate & (CAPI_ISDN_STATE_B3_CHANGE | CAPI_ISDN_STATE_LI)))) {
return 0;
}
if ((!(i->ntmode)) && (i->state != CAPI_STATE_CONNECTED)) {
return 0;
}
if (f->frametype == AST_FRAME_NULL) {
return 0;
}
if (f->frametype == AST_FRAME_DTMF) {
cc_log(LOG_ERROR, "dtmf frame should be written\n");
return 0;
}
if (f->frametype != AST_FRAME_VOICE) {
cc_log(LOG_ERROR,"not a voice frame\n");
return 0;
}
if (i->FaxState & CAPI_FAX_STATE_ACTIVE) {
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: write on fax activity?\n",
i->vname);
return 0;
}
if ((!f->data) || (!f->datalen)) {
cc_log(LOG_DEBUG, "No data for FRAME_VOICE %s\n", c->name);
return 0;
}
if (i->isdnstate & CAPI_ISDN_STATE_RTP) {
if ((!(f->subclass & i->codec)) &&
(f->subclass != capi_capability)) {
cc_log(LOG_ERROR, "don't know how to write subclass %s(%d)\n",
ast_getformatname(f->subclass), f->subclass);
return 0;
}
return capi_write_rtp(c, f);
}
if ((!i->smoother) || (ast_smoother_feed(i->smoother, f) != 0)) {
cc_log(LOG_ERROR, "%s: failed to fill smoother\n", i->vname);
return 0;
}
for (fsmooth = ast_smoother_read(i->smoother);
fsmooth != NULL;
fsmooth = ast_smoother_read(i->smoother)) {
DATA_B3_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
DATA_B3_REQ_NCCI(&CMSG) = i->NCCI;
DATA_B3_REQ_DATALENGTH(&CMSG) = fsmooth->datalen;
DATA_B3_REQ_FLAGS(&CMSG) = 0;
DATA_B3_REQ_DATAHANDLE(&CMSG) = i->send_buffer_handle;
buf = &(i->send_buffer[(i->send_buffer_handle % CAPI_MAX_B3_BLOCKS) *
(CAPI_MAX_B3_BLOCK_SIZE + AST_FRIENDLY_OFFSET)]);
DATA_B3_REQ_DATA(&CMSG) = buf;
i->send_buffer_handle++;
if ((i->doES == 1) && (!tcap_is_digital(c->transfercapability))) {
for (j = 0; j < fsmooth->datalen; j++) {
buf[j] = reversebits[ ((unsigned char *)fsmooth->data)[j] ];
if (capi_capability == AST_FORMAT_ULAW) {
txavg += abs( capiULAW2INT[reversebits[ ((unsigned char*)fsmooth->data)[j]]] );
} else {
txavg += abs( capiALAW2INT[reversebits[ ((unsigned char*)fsmooth->data)[j]]] );
}
}
txavg = txavg / j;
for(j = 0; j < ECHO_TX_COUNT - 1; j++) {
i->txavg[j] = i->txavg[j+1];
}
i->txavg[ECHO_TX_COUNT - 1] = txavg;
} else {
if ((i->txgain == 1.0) || (tcap_is_digital(c->transfercapability))) {
for (j = 0; j < fsmooth->datalen; j++) {
buf[j] = reversebits[((unsigned char *)fsmooth->data)[j]];
}
} else {
for (j = 0; j < fsmooth->datalen; j++) {
buf[j] = i->g.txgains[reversebits[((unsigned char *)fsmooth->data)[j]]];
}
}
}
error = 1;
if (i->B3q > 0) {
error = _capi_put_cmsg(&CMSG);
} else {
cc_verbose(3, 1, VERBOSE_PREFIX_4 "%s: too much voice to send for NCCI=%#x\n",
i->vname, i->NCCI);
}
if (!error) {
cc_mutex_lock(&i->lock);
i->B3q -= fsmooth->datalen;
if (i->B3q < 0)
i->B3q = 0;
cc_mutex_unlock(&i->lock);
}
}
return ret;
}
/*
* new channel (masq)
*/
static int pbx_capi_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
{
struct capi_pvt *i = CC_CHANNEL_PVT(newchan);
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: %s fixup now %s\n",
i->vname, oldchan->name, newchan->name);
cc_mutex_lock(&i->lock);
i->owner = newchan;
cc_mutex_unlock(&i->lock);
return 0;
}
/*
* activate (another B protocol)
*/
static void cc_select_b(struct capi_pvt *i, _cstruct b3conf)
{
_cmsg CMSG;
SELECT_B_PROTOCOL_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
SELECT_B_PROTOCOL_REQ_PLCI(&CMSG) = i->PLCI;
SELECT_B_PROTOCOL_REQ_B1PROTOCOL(&CMSG) = b_protocol_table[i->bproto].b1protocol;
SELECT_B_PROTOCOL_REQ_B2PROTOCOL(&CMSG) = b_protocol_table[i->bproto].b2protocol;
SELECT_B_PROTOCOL_REQ_B3PROTOCOL(&CMSG) = b_protocol_table[i->bproto].b3protocol;
SELECT_B_PROTOCOL_REQ_B1CONFIGURATION(&CMSG) = b_protocol_table[i->bproto].b1configuration;
SELECT_B_PROTOCOL_REQ_B2CONFIGURATION(&CMSG) = b_protocol_table[i->bproto].b2configuration;
if (!b3conf)
b3conf = b_protocol_table[i->bproto].b3configuration;
SELECT_B_PROTOCOL_REQ_B3CONFIGURATION(&CMSG) = b3conf;
#ifndef CC_HAVE_NO_GLOBALCONFIGURATION
SELECT_B_PROTOCOL_REQ_GLOBALCONFIGURATION(&CMSG) = capi_set_global_configuration(i);
#endif
_capi_put_cmsg(&CMSG);
}
/*
* do line initerconnect
*/
static int line_interconnect(struct capi_pvt *i0, struct capi_pvt *i1, int start)
{
_cmsg CMSG;
char buf[20];
if ((i0->isdnstate & CAPI_ISDN_STATE_DISCONNECT) ||
(i1->isdnstate & CAPI_ISDN_STATE_DISCONNECT))
return -1;
if ((!(i0->isdnstate & CAPI_ISDN_STATE_B3_UP)) ||
(!(i1->isdnstate & CAPI_ISDN_STATE_B3_UP))) {
cc_verbose(3, 1, VERBOSE_PREFIX_2
"%s:%s line interconnect aborted, at least "
"one channel is not connected.\n",
i0->vname, i1->vname);
return -1;
}
FACILITY_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
FACILITY_REQ_PLCI(&CMSG) = i0->PLCI;
FACILITY_REQ_FACILITYSELECTOR(&CMSG) = FACILITYSELECTOR_LINE_INTERCONNECT;
memset(buf, 0, sizeof(buf));
if (start) {
/* connect */
buf[0] = 17; /* msg size */
write_capi_word(&buf[1], 0x0001);
buf[3] = 14; /* struct size LI Request Parameter */
write_capi_dword(&buf[4], 0x00000000); /* Data Path */
buf[8] = 9; /* struct size */
buf[9] = 8; /* struct size LI Request Connect Participant */
write_capi_dword(&buf[10], i1->PLCI);
write_capi_dword(&buf[14], 0x00000003); /* Data Path Participant */
} else {
/* disconnect */
buf[0] = 7; /* msg size */
write_capi_word(&buf[1], 0x0002);
buf[3] = 4; /* struct size */
write_capi_dword(&buf[4], i1->PLCI);
}
FACILITY_REQ_FACILITYREQUESTPARAMETER(&CMSG) = (_cstruct)buf;
_capi_put_cmsg(&CMSG);
if (start) {
i0->isdnstate |= CAPI_ISDN_STATE_LI;
i1->isdnstate |= CAPI_ISDN_STATE_LI;
} else {
i0->isdnstate &= ~CAPI_ISDN_STATE_LI;
i1->isdnstate &= ~CAPI_ISDN_STATE_LI;
}
return 0;
}
#if 0
/*
* disconnect b3 and bring it up with another protocol
*/
static void cc_switch_b_protocol(struct capi_pvt *i)
{
int waitcount = 200;
cc_disconnect_b3(i, 1);
i->isdnstate |= CAPI_ISDN_STATE_B3_CHANGE;
cc_select_b(i, NULL);
if (i->outgoing) {
/* on outgoing call we must do the connect-b3 request */
cc_start_b3(i);
}
/* wait for the B3 layer to come up */
while ((waitcount > 0) &&
(!(i->isdnstate & CAPI_ISDN_STATE_B3_UP))) {
usleep(10000);
waitcount--;
}
if (!(i->isdnstate & CAPI_ISDN_STATE_B3_UP)) {
cc_log(LOG_ERROR, "capi switch b3: no b3 up\n");
}
}
/*
* set the b3 protocol to transparent
*/
static int cc_set_transparent(struct capi_pvt *i)
{
if (i->bproto != CC_BPROTO_RTP) {
/* nothing to do */
return 0;
}
i->bproto = CC_BPROTO_TRANSPARENT;
cc_switch_b_protocol(i);
return 1;
}
/*
* set the b3 protocol to RTP (if wanted)
*/
static void cc_unset_transparent(struct capi_pvt *i, int rtpwanted)
{
if ((!rtpwanted) ||
(i->isdnstate & CAPI_ISDN_STATE_DISCONNECT))
return;
i->bproto = CC_BPROTO_RTP;
cc_switch_b_protocol(i);
return;
}
#endif
/*
* native bridging / line interconnect
*/
static CC_BRIDGE_RETURN pbx_capi_bridge(struct ast_channel *c0,
struct ast_channel *c1,
int flags, struct ast_frame **fo,
struct ast_channel **rc,
int timeoutms)
{
struct capi_pvt *i0 = CC_CHANNEL_PVT(c0);
struct capi_pvt *i1 = CC_CHANNEL_PVT(c1);
CC_BRIDGE_RETURN ret = AST_BRIDGE_COMPLETE;
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s:%s Requested native bridge for %s and %s\n",
i0->vname, i1->vname, c0->name, c1->name);
if ((!i0->bridge) || (!i1->bridge))
return AST_BRIDGE_FAILED_NOWARN;
if ((!capi_controllers[i0->controller]->lineinterconnect) ||
(!capi_controllers[i1->controller]->lineinterconnect)) {
return AST_BRIDGE_FAILED_NOWARN;
}
if ((i0->isdnstate & CAPI_ISDN_STATE_ECT) ||
(i0->isdnstate & CAPI_ISDN_STATE_ECT)) {
return AST_BRIDGE_FAILED;
}
capi_wait_for_b3_up(i0);
capi_wait_for_b3_up(i1);
if (!(flags & AST_BRIDGE_DTMF_CHANNEL_0))
capi_detect_dtmf(i0->owner, 0);
if (!(flags & AST_BRIDGE_DTMF_CHANNEL_1))
capi_detect_dtmf(i1->owner, 0);
capi_echo_canceller(i0->owner, EC_FUNCTION_DISABLE);
capi_echo_canceller(i1->owner, EC_FUNCTION_DISABLE);
if (line_interconnect(i0, i1, 1)) {
ret = AST_BRIDGE_FAILED;
goto return_from_bridge;
}
for (;;) {
struct ast_channel *c0_priority[2] = {c0, c1};
struct ast_channel *c1_priority[2] = {c1, c0};
int priority = 0;
struct ast_frame *f;
struct ast_channel *who;
who = ast_waitfor_n(priority ? c0_priority : c1_priority, 2, &timeoutms);
if (!who) {
if (!timeoutms) {
ret = AST_BRIDGE_RETRY;
break;
}
continue;
}
f = ast_read(who);
if (!f || (f->frametype == AST_FRAME_CONTROL)
|| (f->frametype == AST_FRAME_DTMF)) {
*fo = f;
*rc = who;
ret = AST_BRIDGE_COMPLETE;
break;
}
if (who == c0) {
ast_write(c1, f);
} else {
ast_write(c0, f);
}
ast_frfree(f);
/* Swap who gets priority */
priority = !priority;
}
line_interconnect(i0, i1, 0);
return_from_bridge:
if (!(flags & AST_BRIDGE_DTMF_CHANNEL_0))
capi_detect_dtmf(i0->owner, 1);
if (!(flags & AST_BRIDGE_DTMF_CHANNEL_1))
capi_detect_dtmf(i1->owner, 1);
capi_echo_canceller(i0->owner, EC_FUNCTION_ENABLE);
capi_echo_canceller(i1->owner, EC_FUNCTION_ENABLE);
return ret;
}
/*
* a new channel is needed
*/
static struct ast_channel *capi_new(struct capi_pvt *i, int state)
{
struct ast_channel *tmp;
int fmt;
int fds[2];
int flags;
#ifdef CC_AST_HAS_EXT_CHAN_ALLOC
tmp = ast_channel_alloc(0, state, i->cid, NULL,
"CAPI/%s/%s-%x", i->name, i->dnid, capi_counter++);
#else
tmp = ast_channel_alloc(0);
#endif
if (tmp == NULL) {
cc_log(LOG_ERROR,"Unable to allocate channel!\n");
return(NULL);
}
#ifndef CC_AST_HAS_EXT_CHAN_ALLOC
#ifdef CC_AST_HAS_STRINGFIELD_IN_CHANNEL
ast_string_field_build(tmp, name, "CAPI/%s/%s-%x",
i->name, i->dnid, capi_counter++);
#else
snprintf(tmp->name, sizeof(tmp->name) - 1, "CAPI/%s/%s-%x",
i->name, i->dnid, capi_counter++);
#endif
#endif
#ifndef CC_AST_HAS_VERSION_1_4
tmp->type = channeltype;
#endif
if (pipe(fds) != 0) {
cc_log(LOG_ERROR, "%s: unable to create pipe.\n",
i->vname);
ast_channel_free(tmp);
return NULL;
}
i->readerfd = fds[0];
i->writerfd = fds[1];
flags = fcntl(i->readerfd, F_GETFL);
fcntl(i->readerfd, F_SETFL, flags | O_NONBLOCK);
flags = fcntl(i->writerfd, F_GETFL);
fcntl(i->writerfd, F_SETFL, flags | O_NONBLOCK);
tmp->fds[0] = i->readerfd;
if (i->smoother != NULL) {
ast_smoother_reset(i->smoother, CAPI_MAX_B3_BLOCK_SIZE);
}
i->state = CAPI_STATE_DISCONNECTED;
i->calledPartyIsISDN = 1;
i->doB3 = CAPI_B3_DONT;
i->doES = i->ES;
i->outgoing = 0;
i->onholdPLCI = 0;
i->doholdtype = i->holdtype;
i->B3q = 0;
memset(i->txavg, 0, ECHO_TX_COUNT);
if (i->doDTMF > 0) {
i->vad = ast_dsp_new();
ast_dsp_set_features(i->vad, DSP_FEATURE_DTMF_DETECT);
if (i->doDTMF > 1) {
ast_dsp_digitmode(i->vad, DSP_DIGITMODE_DTMF | DSP_DIGITMODE_RELAXDTMF);
}
}
CC_CHANNEL_PVT(tmp) = i;
tmp->callgroup = i->callgroup;
tmp->pickupgroup = i->pickupgroup;
tmp->nativeformats = capi_capability;
i->bproto = CC_BPROTO_TRANSPARENT;
if ((i->rtpcodec = (capi_controllers[i->controller]->rtpcodec & i->capability))) {
if (capi_alloc_rtp(i)) {
/* error on rtp alloc */
i->rtpcodec = 0;
} else {
/* start with rtp */
tmp->nativeformats = i->rtpcodec;
i->bproto = CC_BPROTO_RTP;
}
}
fmt = ast_best_codec(tmp->nativeformats);
i->codec = fmt;
tmp->readformat = fmt;
tmp->writeformat = fmt;
tmp->tech = &capi_tech;
tmp->rawreadformat = fmt;
tmp->rawwriteformat = fmt;
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: setting format %s - %s%s\n",
i->vname, ast_getformatname(fmt),
ast_getformatname_multiple(alloca(80), 80,
tmp->nativeformats),
(i->rtp) ? " (RTP)" : "");
cc_copy_string(tmp->context, i->context, sizeof(tmp->context));
if (!ast_strlen_zero(i->cid)) {
if (tmp->cid.cid_num) {
free(tmp->cid.cid_num);
}
tmp->cid.cid_num = strdup(i->cid);
}
if (!ast_strlen_zero(i->dnid)) {
if (tmp->cid.cid_dnid) {
free(tmp->cid.cid_dnid);
}
tmp->cid.cid_dnid = strdup(i->dnid);
}
tmp->cid.cid_ton = i->cid_ton;
if (i->amaflags)
tmp->amaflags = i->amaflags;
cc_copy_string(tmp->exten, i->dnid, sizeof(tmp->exten));
#ifdef CC_AST_HAS_STRINGFIELD_IN_CHANNEL
ast_string_field_set(tmp, accountcode, i->accountcode);
ast_string_field_set(tmp, language, i->language);
#else
cc_copy_string(tmp->accountcode, i->accountcode, sizeof(tmp->accountcode));
cc_copy_string(tmp->language, i->language, sizeof(tmp->language));
#endif
i->owner = tmp;
#ifdef CC_AST_HAS_VERSION_1_4
ast_atomic_fetchadd_int(&usecnt, 1);
ast_jb_configure(tmp, &i->jbconf);
#else
cc_mutex_lock(&usecnt_lock);
usecnt++;
cc_mutex_unlock(&usecnt_lock);
#endif
ast_update_use_count();
#ifndef CC_AST_HAS_EXT_CHAN_ALLOC
ast_setstate(tmp, state);
#endif
return tmp;
}
/*
* PBX wants us to dial ...
*/
static struct ast_channel *
pbx_capi_request(const char *type, int format, void *data, int *cause)
{
struct capi_pvt *i;
struct ast_channel *tmp = NULL;
char *dest, *interface, *param, *ocid;
char buffer[CAPI_MAX_STRING];
ast_group_t capigroup = 0;
unsigned int controller = 0;
int notfound = 1;
cc_verbose(1, 1, VERBOSE_PREFIX_4 "data = %s format=%d\n", (char *)data, format);
cc_copy_string(buffer, (char *)data, sizeof(buffer));
parse_dialstring(buffer, &interface, &dest, &param, &ocid);
if ((!interface) || (!dest)) {
cc_log(LOG_ERROR, "Syntax error in dialstring. Read the docs!\n");
*cause = AST_CAUSE_INVALID_NUMBER_FORMAT;
return NULL;
}
if (interface[0] == 'g') {
capigroup = ast_get_group(interface + 1);
cc_verbose(1, 1, VERBOSE_PREFIX_4 "capi request group = %d\n",
(unsigned int)capigroup);
} else if (!strncmp(interface, "contr", 5)) {
controller = atoi(interface + 5);
cc_verbose(1, 1, VERBOSE_PREFIX_4 "capi request controller = %d\n",
controller);
} else {
cc_verbose(1, 1, VERBOSE_PREFIX_4 "capi request for interface '%s'\n",
interface);
}
cc_mutex_lock(&iflock);
for (i = iflist; (i && notfound); i = i->next) {
if ((i->owner) || (i->channeltype != CAPI_CHANNELTYPE_B)) {
/* if already in use or no real channel */
continue;
}
/* unused channel */
if (controller) {
/* DIAL(CAPI/contrX/...) */
if (i->controller != controller) {
/* keep on running! */
continue;
}
} else {
/* DIAL(CAPI/gX/...) */
if ((interface[0] == 'g') && (!(i->group & capigroup))) {
/* keep on running! */
continue;
}
/* DIAL(CAPI/<interface-name>/...) */
if ((interface[0] != 'g') && (strcmp(interface, i->name))) {
/* keep on running! */
continue;
}
}
/* when we come here, we found a free controller match */
cc_copy_string(i->dnid, dest, sizeof(i->dnid));
tmp = capi_new(i, AST_STATE_RESERVED);
if (!tmp) {
cc_log(LOG_ERROR, "cannot create new capi channel\n");
interface_cleanup(i);
}
i->PLCI = 0;
i->outgoing = 1; /* this is an outgoing line */
cc_mutex_unlock(&iflock);
return tmp;
}
cc_mutex_unlock(&iflock);
cc_verbose(2, 0, VERBOSE_PREFIX_3 "didn't find capi device for interface '%s'\n",
interface);
*cause = AST_CAUSE_REQUESTED_CHAN_UNAVAIL;
return NULL;
}
/*
* fill out fax conf struct
*/
static void setup_b3_fax_config(B3_PROTO_FAXG3 *b3conf, int fax_format, char *stationid, char *headline)
{
int len1;
int len2;
cc_verbose(3, 1, VERBOSE_PREFIX_3 "Setup fax b3conf fmt=%d, stationid='%s' headline='%s'\n",
fax_format, stationid, headline);
b3conf->resolution = 0;
b3conf->format = (unsigned short)fax_format;
len1 = strlen(stationid);
b3conf->Infos[0] = (unsigned char)len1;
strcpy((char *)&b3conf->Infos[1], stationid);
len2 = strlen(headline);
b3conf->Infos[len1 + 1] = (unsigned char)len2;
strcpy((char *)&b3conf->Infos[len1 + 2], headline);
b3conf->len = (unsigned char)(2 * sizeof(unsigned short) + len1 + len2 + 2);
return;
}
/*
* change b protocol to fax
*/
static void capi_change_bchan_fax(struct ast_channel *c, B3_PROTO_FAXG3 *b3conf)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
i->isdnstate |= CAPI_ISDN_STATE_B3_SELECT;
cc_disconnect_b3(i, 1);
cc_select_b(i, (_cstruct)b3conf);
return;
}
/*
* capicommand 'receivefax'
*/
static int pbx_capi_receive_fax(struct ast_channel *c, char *data)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
int res = 0;
char *filename, *stationid, *headline;
B3_PROTO_FAXG3 b3conf;
char buffer[CAPI_MAX_STRING];
if (!data) { /* no data implies no filename or anything is present */
cc_log(LOG_WARNING, "capi receivefax requires a filename\n");
return -1;
}
filename = strsep(&data, "|");
stationid = strsep(&data, "|");
headline = data;
if (!stationid)
stationid = emptyid;
if (!headline)
headline = emptyid;
capi_wait_for_answered(i);
i->FaxState &= ~CAPI_FAX_STATE_CONN;
if ((i->fFax = fopen(filename, "wb")) == NULL) {
cc_log(LOG_WARNING, "can't create fax output file (%s)\n", strerror(errno));
return -1;
}
i->FaxState |= CAPI_FAX_STATE_ACTIVE;
setup_b3_fax_config(&b3conf, FAX_SFF_FORMAT, stationid, headline);
i->bproto = CC_BPROTO_FAXG3;
switch (i->state) {
case CAPI_STATE_ALERTING:
case CAPI_STATE_DID:
case CAPI_STATE_INCALL:
capi_send_answer(c, (_cstruct)&b3conf);
break;
case CAPI_STATE_CONNECTED:
capi_change_bchan_fax(c, &b3conf);
break;
default:
i->FaxState &= ~CAPI_FAX_STATE_ACTIVE;
cc_log(LOG_WARNING, "capi receive fax in wrong state (%d)\n",
i->state);
return -1;
}
while (capi_tell_fax_finish(i)) {
if (ast_safe_sleep_conditional(c, 1000, capi_tell_fax_finish, i) != 0) {
/* we got a hangup */
cc_verbose(3, 1,
VERBOSE_PREFIX_3 "capi receivefax: hangup.\n");
break;
}
}
cc_mutex_lock(&i->lock);
res = (i->FaxState & CAPI_FAX_STATE_ERROR) ? 1 : 0;
i->FaxState &= ~(CAPI_FAX_STATE_ACTIVE | CAPI_FAX_STATE_ERROR);
/* if the file has zero length */
if (ftell(i->fFax) == 0L) {
res = 1;
}
cc_verbose(2, 1, VERBOSE_PREFIX_3 "Closing fax file...\n");
fclose(i->fFax);
i->fFax = NULL;
cc_mutex_unlock(&i->lock);
if (res != 0) {
cc_verbose(2, 0,
VERBOSE_PREFIX_1 "capi receivefax: fax receive failed reason=0x%04x reasonB3=0x%04x\n",
i->reason, i->reasonb3);
unlink(filename);
} else {
cc_verbose(2, 0,
VERBOSE_PREFIX_1 "capi receivefax: fax receive successful.\n");
}
snprintf(buffer, CAPI_MAX_STRING-1, "%d", res);
pbx_builtin_setvar_helper(c, "FAXSTATUS", buffer);
return 0;
}
/*
* capicommand 'sendfax'
*/
static int pbx_capi_send_fax(struct ast_channel *c, char *data)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
int res = 0;
char *filename, *stationid, *headline;
B3_PROTO_FAXG3 b3conf;
char buffer[CAPI_MAX_STRING];
if (!data) { /* no data implies no filename or anything is present */
cc_log(LOG_WARNING, "capi sendfax requires a filename\n");
return -1;
}
filename = strsep(&data, "|");
stationid = strsep(&data, "|");
headline = data;
if (!stationid)
stationid = emptyid;
if (!headline)
headline = emptyid;
capi_wait_for_answered(i);
if ((i->fFax = fopen(filename, "rb")) == NULL) {
cc_log(LOG_WARNING, "can't open fax file (%s)\n", strerror(errno));
return -1;
}
i->FaxState |= (CAPI_FAX_STATE_ACTIVE | CAPI_FAX_STATE_SENDMODE);
setup_b3_fax_config(&b3conf, FAX_SFF_FORMAT, stationid, headline);
i->bproto = CC_BPROTO_FAXG3;
switch (i->state) {
case CAPI_STATE_ALERTING:
case CAPI_STATE_DID:
case CAPI_STATE_INCALL:
capi_send_answer(c, (_cstruct)&b3conf);
break;
case CAPI_STATE_CONNECTED:
capi_change_bchan_fax(c, &b3conf);
break;
default:
i->FaxState &= ~CAPI_FAX_STATE_ACTIVE;
cc_log(LOG_WARNING, "capi send fax in wrong state (%d)\n",
i->state);
return -1;
}
while (capi_tell_fax_finish(i)) {
if (ast_safe_sleep_conditional(c, 1000, capi_tell_fax_finish, i) != 0) {
/* we got a hangup */
cc_verbose(3, 1,
VERBOSE_PREFIX_3 "capi sendfax: hangup.\n");
break;
}
}
cc_mutex_lock(&i->lock);
res = (i->FaxState & CAPI_FAX_STATE_ERROR) ? 1 : 0;
i->FaxState &= ~(CAPI_FAX_STATE_ACTIVE | CAPI_FAX_STATE_ERROR);
cc_verbose(2, 1, VERBOSE_PREFIX_3 "Closing fax file...\n");
fclose(i->fFax);
i->fFax = NULL;
cc_mutex_unlock(&i->lock);
if (res != 0) {
cc_verbose(2, 0,
VERBOSE_PREFIX_1 "capi sendfax: fax send failed reason=0x%04x reasonB3=0x%04x\n",
i->reason, i->reasonb3);
} else {
cc_verbose(2, 0,
VERBOSE_PREFIX_1 "capi sendfax: fax sent successful.\n");
}
snprintf(buffer, CAPI_MAX_STRING-1, "%d", res);
pbx_builtin_setvar_helper(c, "FAXSTATUS", buffer);
return 0;
}
/*
* Fax guard tone -- Handle and return NULL
*/
static void capi_handle_dtmf_fax(struct capi_pvt *i)
{
struct ast_channel *c = i->owner;
if (!c) {
cc_log(LOG_ERROR, "No channel!\n");
return;
}
if (i->FaxState & CAPI_FAX_STATE_HANDLED) {
cc_log(LOG_DEBUG, "Fax already handled\n");
return;
}
i->FaxState |= CAPI_FAX_STATE_HANDLED;
if (((i->outgoing == 1) && (!(i->FaxState & CAPI_FAX_DETECT_OUTGOING))) ||
((i->outgoing == 0) && (!(i->FaxState & CAPI_FAX_DETECT_INCOMING)))) {
cc_verbose(3, 0, VERBOSE_PREFIX_3 "%s: Fax detected, but not configured for redirection\n",
i->vname);
return;
}
if (!strcmp(c->exten, "fax")) {
cc_log(LOG_DEBUG, "Already in a fax extension, not redirecting\n");
return;
}
if (!ast_exists_extension(c, c->context, "fax", 1, i->cid)) {
cc_verbose(3, 0, VERBOSE_PREFIX_3 "Fax tone detected, but no fax extension for %s\n", c->name);
return;
}
cc_verbose(2, 0, VERBOSE_PREFIX_3 "%s: Redirecting %s to fax extension\n",
i->vname, c->name);
/* Save the DID/DNIS when we transfer the fax call to a "fax" extension */
pbx_builtin_setvar_helper(c, "FAXEXTEN", c->exten);
if (ast_async_goto(c, c->context, "fax", 1))
cc_log(LOG_WARNING, "Failed to async goto '%s' into fax of '%s'\n", c->name, c->context);
return;
}
/*
* find the interface (pvt) the PLCI belongs to
*/
static struct capi_pvt *find_interface_by_plci(unsigned int plci)
{
struct capi_pvt *i;
if (plci == 0)
return NULL;
cc_mutex_lock(&iflock);
for (i = iflist; i; i = i->next) {
if (i->PLCI == plci)
break;
}
cc_mutex_unlock(&iflock);
return i;
}
/*
* find the interface (pvt) the messagenumber belongs to
*/
static struct capi_pvt *find_interface_by_msgnum(unsigned short msgnum)
{
struct capi_pvt *i;
if (msgnum == 0x0000)
return NULL;
cc_mutex_lock(&iflock);
for (i = iflist; i; i = i->next) {
if ((i->PLCI == 0) && (i->MessageNumber == msgnum))
break;
}
cc_mutex_unlock(&iflock);
return i;
}
/*
* see if did matches
*/
static int search_did(struct ast_channel *c)
{
/*
* Returns
* -1 = Failure
* 0 = Match
* 1 = possible match
*/
struct capi_pvt *i = CC_CHANNEL_PVT(c);
char *exten;
if (!strlen(i->dnid) && (i->immediate)) {
exten = "s";
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: %s: %s matches in context %s for immediate\n",
i->vname, c->name, exten, c->context);
} else {
if (strlen(i->dnid) < strlen(i->incomingmsn))
return 0;
exten = i->dnid;
}
if (ast_exists_extension(NULL, c->context, exten, 1, i->cid)) {
c->priority = 1;
cc_copy_string(c->exten, exten, sizeof(c->exten));
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: %s: %s matches in context %s\n",
i->vname, c->name, exten, c->context);
return 0;
}
if (ast_canmatch_extension(NULL, c->context, exten, 1, i->cid)) {
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: %s: %s would possibly match in context %s\n",
i->vname, c->name, exten, c->context);
return 1;
}
return -1;
}
/*
* Progress Indicator
*/
static void handle_progress_indicator(_cmsg *CMSG, unsigned int PLCI, struct capi_pvt *i)
{
if (INFO_IND_INFOELEMENT(CMSG)[0] < 2) {
cc_verbose(3, 1, VERBOSE_PREFIX_4 "%s: Progress description missing\n",
i->vname);
return;
}
switch(INFO_IND_INFOELEMENT(CMSG)[2] & 0x7f) {
case 0x01:
cc_verbose(4, 1, VERBOSE_PREFIX_4 "%s: Not end-to-end ISDN\n",
i->vname);
break;
case 0x02:
cc_verbose(4, 1, VERBOSE_PREFIX_4 "%s: Destination is non ISDN\n",
i->vname);
i->calledPartyIsISDN = 0;
break;
case 0x03:
cc_verbose(4, 1, VERBOSE_PREFIX_4 "%s: Origination is non ISDN\n",
i->vname);
break;
case 0x04:
cc_verbose(4, 1, VERBOSE_PREFIX_4 "%s: Call returned to ISDN\n",
i->vname);
break;
case 0x05:
cc_verbose(4, 1, VERBOSE_PREFIX_4 "%s: Interworking occured\n",
i->vname);
break;
case 0x08:
cc_verbose(4, 1, VERBOSE_PREFIX_4 "%s: In-band information available\n",
i->vname);
break;
default:
cc_verbose(3, 1, VERBOSE_PREFIX_4 "%s: Unknown progress description %02x\n",
i->vname, INFO_IND_INFOELEMENT(CMSG)[2]);
}
send_progress(i);
return;
}
/*
* if the dnid matches, start the pbx
*/
static void start_pbx_on_match(struct capi_pvt *i, unsigned int PLCI, _cword MessageNumber)
{
struct ast_channel *c;
_cmsg CMSG2;
c = i->owner;
if ((i->isdnstate & CAPI_ISDN_STATE_PBX_DONT)) {
/* we already found non-match here */
return;
}
if ((i->isdnstate & CAPI_ISDN_STATE_PBX)) {
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: pbx already started on channel %s\n",
i->vname, c->name);
return;
}
/* check for internal pickup extension first */
if (!strcmp(i->dnid, ast_pickup_ext())) {
i->isdnstate |= CAPI_ISDN_STATE_PBX;
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: Pickup extension '%s' found.\n",
i->vname, i->dnid);
cc_copy_string(c->exten, i->dnid, sizeof(c->exten));
pbx_capi_alert(c);
capi_channel_task(c, CAPI_CHANNEL_TASK_PICKUP);
return;
}
switch(search_did(i->owner)) {
case 0: /* match */
i->isdnstate |= CAPI_ISDN_STATE_PBX;
ast_setstate(c, AST_STATE_RING);
if (ast_pbx_start(i->owner)) {
cc_log(LOG_ERROR, "%s: Unable to start pbx on channel!\n",
i->vname);
capi_channel_task(c, CAPI_CHANNEL_TASK_HANGUP);
} else {
cc_verbose(2, 1, VERBOSE_PREFIX_2 "Started pbx on channel %s\n",
c->name);
}
break;
case 1:
/* would possibly match */
if (i->isdnmode == CAPI_ISDNMODE_DID)
break;
/* fall through for MSN mode, because there won't be a longer msn */
case -1:
default:
/* doesn't match */
i->isdnstate |= CAPI_ISDN_STATE_PBX_DONT; /* don't try again */
cc_log(LOG_NOTICE, "%s: did not find exten for '%s', ignoring call.\n",
i->vname, i->dnid);
CONNECT_RESP_HEADER(&CMSG2, capi_ApplID, MessageNumber, 0);
CONNECT_RESP_PLCI(&CMSG2) = PLCI;
CONNECT_RESP_REJECT(&CMSG2) = 1; /* ignore */
_capi_put_cmsg(&CMSG2);
}
return;
}
/*
* Called Party Number via INFO_IND
*/
static void capidev_handle_did_digits(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
char *did;
struct ast_frame fr = { AST_FRAME_NULL, };
int a;
if (!i->owner) {
cc_log(LOG_ERROR, "No channel for interface!\n");
return;
}
if (i->state != CAPI_STATE_DID) {
cc_verbose(4, 1, VERBOSE_PREFIX_4 "%s: INFO_IND DID digits not used in this state.\n",
i->vname);
return;
}
did = capi_number(INFO_IND_INFOELEMENT(CMSG), 1);
if ((!(i->isdnstate & CAPI_ISDN_STATE_DID)) &&
(strlen(i->dnid) && !strcasecmp(i->dnid, did))) {
did = NULL;
}
if ((did) && (strlen(i->dnid) < (sizeof(i->dnid) - 1)))
strcat(i->dnid, did);
i->isdnstate |= CAPI_ISDN_STATE_DID;
update_channel_name(i);
if (i->owner->pbx != NULL) {
/* we are already in pbx, so we send the digits as dtmf */
for (a = 0; a < strlen(did); a++) {
fr.frametype = AST_FRAME_DTMF;
fr.subclass = did[a];
local_queue_frame(i, &fr);
}
return;
}
start_pbx_on_match(i, PLCI, HEADER_MSGNUM(CMSG));
return;
}
/*
* send control according to cause code
*/
static void queue_cause_control(struct capi_pvt *i, int control)
{
struct ast_frame fr = { AST_FRAME_CONTROL, AST_CONTROL_HANGUP, };
if ((i->owner) && (control)) {
int cause = i->owner->hangupcause;
if (cause == AST_CAUSE_NORMAL_CIRCUIT_CONGESTION) {
fr.subclass = AST_CONTROL_CONGESTION;
} else if ((cause != AST_CAUSE_NO_USER_RESPONSE) &&
(cause != AST_CAUSE_NO_ANSWER)) {
/* not NOANSWER */
fr.subclass = AST_CONTROL_BUSY;
}
}
local_queue_frame(i, &fr);
return;
}
/*
* Disconnect via INFO_IND
*/
static void capidev_handle_info_disconnect(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
_cmsg CMSG2;
i->isdnstate |= CAPI_ISDN_STATE_DISCONNECT;
if ((i->isdnstate & CAPI_ISDN_STATE_ECT)) {
cc_verbose(4, 1, VERBOSE_PREFIX_3 "%s: Disconnect ECT call\n",
i->vname);
/* we do nothing, just wait for DISCONNECT_IND */
return;
}
if (PLCI == i->onholdPLCI) {
cc_verbose(4, 1, VERBOSE_PREFIX_3 "%s: Disconnect onhold call\n",
i->vname);
/* the caller onhold hung up (or ECTed away) */
/* send a disconnect_req , we cannot hangup the channel here!!! */
DISCONNECT_REQ_HEADER(&CMSG2, capi_ApplID, get_capi_MessageNumber(), 0);
DISCONNECT_REQ_PLCI(&CMSG2) = i->onholdPLCI;
_capi_put_cmsg(&CMSG2);
return;
}
/* case 1: B3 on success or no B3 at all */
if ((i->doB3 != CAPI_B3_ALWAYS) && (i->outgoing == 1)) {
cc_verbose(4, 1, VERBOSE_PREFIX_3 "%s: Disconnect case 1\n",
i->vname);
if (i->state == CAPI_STATE_CONNECTED)
queue_cause_control(i, 0);
else
queue_cause_control(i, 1);
return;
}
/* case 2: we are doing B3, and receive the 0x8045 after a successful call */
if ((i->doB3 != CAPI_B3_DONT) &&
(i->state == CAPI_STATE_CONNECTED) && (i->outgoing == 1)) {
cc_verbose(4, 1, VERBOSE_PREFIX_3 "%s: Disconnect case 2\n",
i->vname);
queue_cause_control(i, 1);
return;
}
/*
* case 3: this channel is an incoming channel! the user hung up!
* it is much better to hangup now instead of waiting for a timeout and
* network caused DISCONNECT_IND!
*/
if (i->outgoing == 0) {
cc_verbose(4, 1, VERBOSE_PREFIX_3 "%s: Disconnect case 3\n",
i->vname);
if (i->FaxState & CAPI_FAX_STATE_ACTIVE) {
/* in fax mode, we just hangup */
DISCONNECT_REQ_HEADER(&CMSG2, capi_ApplID, get_capi_MessageNumber(), 0);
DISCONNECT_REQ_PLCI(&CMSG2) = i->PLCI;
_capi_put_cmsg(&CMSG2);
return;
}
queue_cause_control(i, 0);
return;
}
/* case 4 (a.k.a. the italian case): B3 always. call is unsuccessful */
if ((i->doB3 == CAPI_B3_ALWAYS) && (i->outgoing == 1)) {
cc_verbose(4, 1, VERBOSE_PREFIX_3 "%s: Disconnect case 4\n",
i->vname);
if ((i->state == CAPI_STATE_CONNECTED) &&
(i->isdnstate & CAPI_ISDN_STATE_B3_UP)) {
queue_cause_control(i, 1);
return;
}
/* wait for the 0x001e (PROGRESS), play audio and wait for a timeout from the network */
return;
}
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: Other case DISCONNECT INFO_IND\n",
i->vname);
return;
}
/*
* incoming call SETUP
*/
static void capidev_handle_setup_element(_cmsg *CMSG, unsigned int PLCI, struct capi_pvt *i)
{
if ((i->isdnstate & CAPI_ISDN_STATE_SETUP)) {
cc_verbose(3, 1, VERBOSE_PREFIX_4 "%s: IE SETUP / SENDING-COMPLETE already received.\n",
i->vname);
return;
}
i->isdnstate |= CAPI_ISDN_STATE_SETUP;
if (!i->owner) {
cc_log(LOG_ERROR, "No channel for interface!\n");
return;
}
if (i->isdnmode == CAPI_ISDNMODE_DID) {
if (!strlen(i->dnid) && (i->immediate)) {
start_pbx_on_match(i, PLCI, HEADER_MSGNUM(CMSG));
}
} else {
start_pbx_on_match(i, PLCI, HEADER_MSGNUM(CMSG));
}
return;
}
/*
* CAPI INFO_IND
*/
static void capidev_handle_info_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
_cmsg CMSG2;
struct ast_frame fr = { AST_FRAME_NULL, };
char *p = NULL;
int val = 0;
INFO_RESP_HEADER(&CMSG2, capi_ApplID, HEADER_MSGNUM(CMSG), PLCI);
_capi_put_cmsg(&CMSG2);
return_on_no_interface("INFO_IND");
switch(INFO_IND_INFONUMBER(CMSG)) {
case 0x0008: /* Cause */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element CAUSE %02x %02x\n",
i->vname, INFO_IND_INFOELEMENT(CMSG)[1], INFO_IND_INFOELEMENT(CMSG)[2]);
if (i->owner) {
i->owner->hangupcause = INFO_IND_INFOELEMENT(CMSG)[2] & 0x7f;
}
break;
case 0x0014: /* Call State */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element CALL STATE %02x\n",
i->vname, INFO_IND_INFOELEMENT(CMSG)[1]);
break;
case 0x0018: /* Channel Identification */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element CHANNEL IDENTIFICATION %02x\n",
i->vname, INFO_IND_INFOELEMENT(CMSG)[1]);
break;
case 0x001c: /* Facility Q.932 */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element FACILITY\n",
i->vname);
break;
case 0x001e: /* Progress Indicator */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element PI %02x %02x\n",
i->vname, INFO_IND_INFOELEMENT(CMSG)[1], INFO_IND_INFOELEMENT(CMSG)[2]);
handle_progress_indicator(CMSG, PLCI, i);
break;
case 0x0027: { /* Notification Indicator */
char *desc = "?";
if (INFO_IND_INFOELEMENT(CMSG)[0] > 0) {
switch (INFO_IND_INFOELEMENT(CMSG)[1]) {
case 0:
desc = "User suspended";
break;
case 1:
desc = "User resumed";
break;
case 2:
desc = "Bearer service changed";
break;
case 0xf9:
desc = "User put on hold";
break;
case 0xfa:
desc = "User retrieved from hold";
break;
}
}
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element NOTIFICATION INDICATOR '%s' (0x%02x)\n",
i->vname, desc, INFO_IND_INFOELEMENT(CMSG)[1]);
break;
}
case 0x0028: /* DSP */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element DSP\n",
i->vname);
break;
case 0x0029: /* Date/Time */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element Date/Time %02d/%02d/%02d %02d:%02d\n",
i->vname,
INFO_IND_INFOELEMENT(CMSG)[1], INFO_IND_INFOELEMENT(CMSG)[2],
INFO_IND_INFOELEMENT(CMSG)[3], INFO_IND_INFOELEMENT(CMSG)[4],
INFO_IND_INFOELEMENT(CMSG)[5]);
break;
case 0x0070: /* Called Party Number */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element CALLED PARTY NUMBER\n",
i->vname);
capidev_handle_did_digits(CMSG, PLCI, NCCI, i);
break;
case 0x0074: /* Redirecting Number */
p = capi_number(INFO_IND_INFOELEMENT(CMSG), 3);
if (INFO_IND_INFOELEMENT(CMSG)[0] > 2) {
val = INFO_IND_INFOELEMENT(CMSG)[3] & 0x0f;
}
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element REDIRECTING NUMBER '%s' Reason=0x%02x\n",
i->vname, p, val);
if (i->owner) {
char reasonbuf[16];
snprintf(reasonbuf, sizeof(reasonbuf) - 1, "%d", val);
pbx_builtin_setvar_helper(i->owner, "REDIRECTINGNUMBER", p);
pbx_builtin_setvar_helper(i->owner, "REDIRECTREASON", reasonbuf);
if (i->owner->cid.cid_rdnis) {
free(i->owner->cid.cid_rdnis);
}
i->owner->cid.cid_rdnis = strdup(p);
}
break;
case 0x00a1: /* Sending Complete */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element Sending Complete\n",
i->vname);
capidev_handle_setup_element(CMSG, PLCI, i);
break;
case 0x4000: /* CHARGE in UNITS */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element CHARGE in UNITS\n",
i->vname);
break;
case 0x4001: /* CHARGE in CURRENCY */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element CHARGE in CURRENCY\n",
i->vname);
break;
case 0x8001: /* ALERTING */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element ALERTING\n",
i->vname);
send_progress(i);
fr.frametype = AST_FRAME_CONTROL;
fr.subclass = AST_CONTROL_RINGING;
local_queue_frame(i, &fr);
if (i->owner)
ast_setstate(i->owner, AST_STATE_RINGING);
break;
case 0x8002: /* CALL PROCEEDING */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element CALL PROCEEDING\n",
i->vname);
fr.frametype = AST_FRAME_CONTROL;
fr.subclass = AST_CONTROL_PROCEEDING;
local_queue_frame(i, &fr);
break;
case 0x8003: /* PROGRESS */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element PROGRESS\n",
i->vname);
/*
* rain - some networks will indicate a USER BUSY cause, send
* PROGRESS message, and then send audio for a busy signal for
* a moment before dropping the line. This delays sending the
* busy to the end user, so we explicitly check for it here.
*
* FIXME: should have better CAUSE handling so that we can
* distinguish things like status responses and invalid IE
* content messages (from bad SetCallerID) from errors actually
* related to the call setup; then, we could always abort if we
* get a PROGRESS with a hangupcause set (safer?)
*/
if (i->doB3 == CAPI_B3_DONT) {
if ((i->owner) &&
(i->owner->hangupcause == AST_CAUSE_USER_BUSY)) {
queue_cause_control(i, 1);
break;
}
}
send_progress(i);
break;
case 0x8005: /* SETUP */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element SETUP\n",
i->vname);
capidev_handle_setup_element(CMSG, PLCI, i);
break;
case 0x8007: /* CONNECT */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element CONNECT\n",
i->vname);
break;
case 0x800d: /* SETUP ACK */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element SETUP ACK\n",
i->vname);
i->isdnstate |= CAPI_ISDN_STATE_SETUP_ACK;
/* if some digits of initial CONNECT_REQ are left to dial */
if (strlen(i->overlapdigits)) {
capi_send_info_digits(i, i->overlapdigits,
strlen(i->overlapdigits));
i->overlapdigits[0] = 0;
i->doOverlap = 0;
}
break;
case 0x800f: /* CONNECT ACK */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element CONNECT ACK\n",
i->vname);
break;
case 0x8045: /* DISCONNECT */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element DISCONNECT\n",
i->vname);
capidev_handle_info_disconnect(CMSG, PLCI, NCCI, i);
break;
case 0x804d: /* RELEASE */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element RELEASE\n",
i->vname);
break;
case 0x805a: /* RELEASE COMPLETE */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element RELEASE COMPLETE\n",
i->vname);
break;
case 0x8062: /* FACILITY */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element FACILITY\n",
i->vname);
break;
case 0x806e: /* NOTIFY */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element NOTIFY\n",
i->vname);
break;
case 0x807b: /* INFORMATION */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element INFORMATION\n",
i->vname);
break;
case 0x807d: /* STATUS */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: info element STATUS\n",
i->vname);
break;
default:
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: unhandled INFO_IND %#x (PLCI=%#x)\n",
i->vname, INFO_IND_INFONUMBER(CMSG), PLCI);
break;
}
return;
}
/*
* CAPI FACILITY_IND
*/
static void capidev_handle_facility_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
_cmsg CMSG2;
struct ast_frame fr = { AST_FRAME_NULL, };
char dtmf;
unsigned dtmflen;
unsigned dtmfpos = 0;
FACILITY_RESP_HEADER(&CMSG2, capi_ApplID, HEADER_MSGNUM(CMSG), PLCI);
FACILITY_RESP_FACILITYSELECTOR(&CMSG2) = FACILITY_IND_FACILITYSELECTOR(CMSG);
FACILITY_RESP_FACILITYRESPONSEPARAMETERS(&CMSG2) = FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG);
_capi_put_cmsg(&CMSG2);
return_on_no_interface("FACILITY_IND");
if (FACILITY_IND_FACILITYSELECTOR(CMSG) == FACILITYSELECTOR_LINE_INTERCONNECT) {
/* line interconnect */
if ((FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[1] == 0x01) &&
(FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[2] == 0x00)) {
cc_verbose(3, 0, VERBOSE_PREFIX_3 "%s: Line Interconnect activated\n",
i->vname);
}
if ((FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[1] == 0x02) &&
(FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[2] == 0x00) &&
(FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[0] > 8)) {
show_capi_info(i, read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[8]));
}
}
if (FACILITY_IND_FACILITYSELECTOR(CMSG) == FACILITYSELECTOR_DTMF) {
/* DTMF received */
if (FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[0] != (0xff)) {
dtmflen = FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[0];
FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG) += 1;
} else {
dtmflen = read_capi_word(FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG) + 1);
FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG) += 3;
}
while (dtmflen) {
dtmf = (FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG))[dtmfpos];
cc_verbose(1, 1, VERBOSE_PREFIX_4 "%s: c_dtmf = %c\n",
i->vname, dtmf);
if ((!(i->ntmode)) || (i->state == CAPI_STATE_CONNECTED)) {
if ((dtmf == 'X') || (dtmf == 'Y')) {
capi_handle_dtmf_fax(i);
} else {
fr.frametype = AST_FRAME_DTMF;
fr.subclass = dtmf;
local_queue_frame(i, &fr);
}
}
dtmflen--;
dtmfpos++;
}
}
if (FACILITY_IND_FACILITYSELECTOR(CMSG) == FACILITYSELECTOR_SUPPLEMENTARY) {
/* supplementary sservices */
/* ECT */
if ( (FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[1] == 0x6) &&
(FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[3] == 0x2) ) {
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: PLCI=%#x ECT Reason=0x%02x%02x\n",
i->vname, PLCI,
FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[5],
FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]);
show_capi_info(i, read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]));
}
/* 3PTY */
if ( (FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[1] == 0x7) &&
(FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[3] == 0x2) ) {
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: PLCI=%#x 3PTY Reason=0x%02x%02x\n",
i->vname, PLCI,
FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[5],
FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]);
show_capi_info(i, read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]));
}
/* RETRIEVE */
if ( (FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[1] == 0x3) &&
(FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[3] == 0x2) ) {
if ((FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[5] != 0) ||
(FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4] != 0)) {
cc_log(LOG_WARNING, "%s: unable to retrieve PLCI=%#x, REASON = 0x%02x%02x\n",
i->vname, PLCI,
FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[5],
FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]);
show_capi_info(i, read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]));
} else {
/* reason != 0x0000 == problem */
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);
}
}
/* HOLD */
if ( (FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[1] == 0x2) &&
(FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[3] == 0x2) ) {
if ((FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[5] != 0) ||
(FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4] != 0)) {
/* reason != 0x0000 == problem */
i->onholdPLCI = 0;
cc_log(LOG_WARNING, "%s: unable to put PLCI=%#x onhold, REASON = 0x%02x%02x, maybe you need to subscribe for this...\n",
i->vname, PLCI,
FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[5],
FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]);
show_capi_info(i, read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]));
} 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);
}
}
}
return;
}
/*
* CAPI DATA_B3_IND
*/
static void capidev_handle_data_b3_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
_cmsg CMSG2;
struct ast_channel *chan;
struct ast_frame fr = { AST_FRAME_NULL, };
unsigned char *b3buf = NULL;
int b3len = 0;
int j;
int rxavg = 0;
int txavg = 0;
int rtpoffset = 0;
if (i != NULL) {
if ((i->isdnstate & CAPI_ISDN_STATE_RTP)) rtpoffset = RTP_HEADER_SIZE;
b3len = DATA_B3_IND_DATALENGTH(CMSG);
b3buf = &(i->rec_buffer[AST_FRIENDLY_OFFSET - rtpoffset]);
memcpy(b3buf, (char *)DATA_B3_IND_DATA(CMSG), b3len);
}
/* send a DATA_B3_RESP very quickly to free the buffer in capi */
DATA_B3_RESP_HEADER(&CMSG2, capi_ApplID, HEADER_MSGNUM(CMSG), 0);
DATA_B3_RESP_NCCI(&CMSG2) = NCCI;
DATA_B3_RESP_DATAHANDLE(&CMSG2) = DATA_B3_IND_DATAHANDLE(CMSG);
_capi_put_cmsg(&CMSG2);
return_on_no_interface("DATA_B3_IND");
chan = i->owner;
if (i->fFax) {
/* we are in fax mode and have a file open */
cc_verbose(6, 1, VERBOSE_PREFIX_3 "%s: DATA_B3_IND (len=%d) Fax\n",
i->vname, b3len);
if ((!(i->FaxState & CAPI_FAX_STATE_SENDMODE)) &&
(i->FaxState & CAPI_FAX_STATE_CONN)) {
if (fwrite(b3buf, 1, b3len, i->fFax) != b3len)
cc_log(LOG_WARNING, "%s : error writing output file (%s)\n",
i->vname, strerror(errno));
}
#ifndef CC_AST_HAS_VERSION_1_4
fr.frametype = AST_FRAME_CONTROL;
fr.subclass = AST_CONTROL_PROGRESS;
local_queue_frame(i, &fr);
#endif
return;
}
if (((i->isdnstate &
(CAPI_ISDN_STATE_B3_CHANGE | CAPI_ISDN_STATE_LI | CAPI_ISDN_STATE_HANGUP))) ||
(i->state == CAPI_STATE_DISCONNECTING)) {
/* drop voice frames when we don't want them */
return;
}
if ((i->isdnstate & CAPI_ISDN_STATE_RTP)) {
struct ast_frame *f = capi_read_rtp(i, b3buf, b3len);
if (f)
local_queue_frame(i, f);
return;
}
if (i->B3q < (((CAPI_MAX_B3_BLOCKS - 1) * CAPI_MAX_B3_BLOCK_SIZE) + 1)) {
i->B3q += b3len;
}
if ((i->doES == 1) && (!tcap_is_digital(chan->transfercapability))) {
for (j = 0; j < b3len; j++) {
*(b3buf + j) = reversebits[*(b3buf + j)];
if (capi_capability == AST_FORMAT_ULAW) {
rxavg += abs(capiULAW2INT[ reversebits[*(b3buf + j)]]);
} else {
rxavg += abs(capiALAW2INT[ reversebits[*(b3buf + j)]]);
}
}
rxavg = rxavg / j;
for (j = 0; j < ECHO_EFFECTIVE_TX_COUNT; j++) {
txavg += i->txavg[j];
}
txavg = txavg / j;
if ( (txavg / ECHO_TXRX_RATIO) > rxavg) {
if (capi_capability == AST_FORMAT_ULAW) {
memset(b3buf, 255, b3len);
} else {
memset(b3buf, 85, b3len);
}
cc_verbose(6, 1, VERBOSE_PREFIX_3 "%s: SUPPRESSING ECHO rx=%d, tx=%d\n",
i->vname, rxavg, txavg);
}
} else {
if ((i->rxgain == 1.0) || (tcap_is_digital(chan->transfercapability))) {
for (j = 0; j < b3len; j++) {
*(b3buf + j) = reversebits[*(b3buf + j)];
}
} else {
for (j = 0; j < b3len; j++) {
*(b3buf + j) = reversebits[i->g.rxgains[*(b3buf + j)]];
}
}
}
fr.frametype = AST_FRAME_VOICE;
fr.subclass = capi_capability;
fr.data = b3buf;
fr.datalen = b3len;
fr.samples = b3len;
fr.offset = AST_FRIENDLY_OFFSET;
fr.mallocd = 0;
fr.delivery = ast_tv(0,0);
fr.src = NULL;
cc_verbose(8, 1, VERBOSE_PREFIX_3 "%s: DATA_B3_IND (len=%d) fr.datalen=%d fr.subclass=%d\n",
i->vname, b3len, fr.datalen, fr.subclass);
local_queue_frame(i, &fr);
return;
}
/*
* signal 'answer' to PBX
*/
static void capi_signal_answer(struct capi_pvt *i)
{
struct ast_frame fr = { AST_FRAME_CONTROL, AST_CONTROL_ANSWER, };
if (i->outgoing == 1) {
local_queue_frame(i, &fr);
}
}
/*
* send the next data
*/
static void capidev_send_faxdata(struct capi_pvt *i)
{
#ifndef CC_AST_HAS_VERSION_1_4
struct ast_frame fr = { AST_FRAME_CONTROL, AST_CONTROL_PROGRESS, };
#endif
unsigned char faxdata[CAPI_MAX_B3_BLOCK_SIZE];
size_t len;
_cmsg CMSG;
if (i->state == CAPI_STATE_DISCONNECTING) {
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: send_faxdata in DISCONNECTING.\n",
i->vname);
return;
}
if ((i->fFax) && (!(feof(i->fFax)))) {
len = fread(faxdata, 1, CAPI_MAX_B3_BLOCK_SIZE, i->fFax);
if (len > 0) {
DATA_B3_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
DATA_B3_REQ_NCCI(&CMSG) = i->NCCI;
DATA_B3_REQ_DATALENGTH(&CMSG) = len;
DATA_B3_REQ_FLAGS(&CMSG) = 0;
DATA_B3_REQ_DATAHANDLE(&CMSG) = i->send_buffer_handle;
DATA_B3_REQ_DATA(&CMSG) = faxdata;
i->send_buffer_handle++;
cc_verbose(5, 1, VERBOSE_PREFIX_3 "%s: send %d fax bytes.\n",
i->vname, len);
_capi_put_cmsg(&CMSG);
#ifndef CC_AST_HAS_VERSION_1_4
local_queue_frame(i, &fr);
#endif
return;
}
}
/* finished send fax, so we hangup */
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: completed faxsend.\n",
i->vname);
DISCONNECT_B3_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
DISCONNECT_B3_REQ_NCCI(&CMSG) = i->NCCI;
_capi_put_cmsg(&CMSG);
}
/*
* CAPI MANUFACTURER_IND
*/
static void capidev_handle_manufacturer_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
_cmsg CMSG2;
MANUFACTURER_RESP_HEADER(&CMSG2, capi_ApplID, HEADER_MSGNUM(CMSG), 0);
MANUFACTURER_RESP_CONTROLLER(&CMSG2) = MANUFACTURER_IND_CONTROLLER(CMSG);
MANUFACTURER_RESP_MANUID(&CMSG2) = MANUFACTURER_IND_MANUID(CMSG);
_capi_put_cmsg(&CMSG2);
return_on_no_interface("MANUFACTURER_IND");
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: Ignored MANUFACTURER_IND Id=0x%x \n",
i->vname, MANUFACTURER_IND_MANUID(CMSG));
return;
}
/*
* CAPI CONNECT_ACTIVE_IND
*/
static void capidev_handle_connect_active_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
_cmsg CMSG2;
CONNECT_ACTIVE_RESP_HEADER(&CMSG2, capi_ApplID, HEADER_MSGNUM(CMSG), 0);
CONNECT_ACTIVE_RESP_PLCI(&CMSG2) = PLCI;
_capi_put_cmsg(&CMSG2);
return_on_no_interface("CONNECT_ACTIVE_IND");
if (i->state == CAPI_STATE_DISCONNECTING) {
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: CONNECT_ACTIVE in DISCONNECTING.\n",
i->vname);
return;
}
i->state = CAPI_STATE_CONNECTED;
if ((i->FaxState & CAPI_FAX_STATE_SENDMODE)) {
cc_start_b3(i);
return;
}
if ((i->owner) && (i->FaxState & CAPI_FAX_STATE_ACTIVE)) {
ast_setstate(i->owner, AST_STATE_UP);
if (i->owner->cdr)
ast_cdr_answer(i->owner->cdr);
return;
}
/* normal processing */
if (!(i->isdnstate & CAPI_ISDN_STATE_B3_UP)) {
/* send a CONNECT_B3_REQ */
if (i->outgoing == 1) {
/* outgoing call */
cc_start_b3(i);
} else {
/* incoming call */
/* RESP already sent ... wait for CONNECT_B3_IND */
}
} else {
capi_signal_answer(i);
}
return;
}
/*
* CAPI CONNECT_B3_ACTIVE_IND
*/
static void capidev_handle_connect_b3_active_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
_cmsg CMSG2;
/* then send a CONNECT_B3_ACTIVE_RESP */
CONNECT_B3_ACTIVE_RESP_HEADER(&CMSG2, capi_ApplID, HEADER_MSGNUM(CMSG), 0);
CONNECT_B3_ACTIVE_RESP_NCCI(&CMSG2) = NCCI;
_capi_put_cmsg(&CMSG2);
return_on_no_interface("CONNECT_ACTIVE_B3_IND");
capi_controllers[i->controller]->nfreebchannels--;
if (i->state == CAPI_STATE_DISCONNECTING) {
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: CONNECT_B3_ACTIVE_IND during disconnect for NCCI %#x\n",
i->vname, NCCI);
return;
}
i->isdnstate |= CAPI_ISDN_STATE_B3_UP;
i->isdnstate &= ~CAPI_ISDN_STATE_B3_PEND;
if (i->bproto == CC_BPROTO_RTP) {
i->isdnstate |= CAPI_ISDN_STATE_RTP;
} else {
i->isdnstate &= ~CAPI_ISDN_STATE_RTP;
i->B3q = (CAPI_MAX_B3_BLOCK_SIZE * 3);
}
if ((i->FaxState & CAPI_FAX_STATE_SENDMODE)) {
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: Start sending fax.\n",
i->vname);
capidev_send_faxdata(i);
}
if ((i->isdnstate & CAPI_ISDN_STATE_B3_CHANGE)) {
i->isdnstate &= ~CAPI_ISDN_STATE_B3_CHANGE;
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: B3 protocol changed.\n",
i->vname);
return;
}
if (!i->owner) {
cc_log(LOG_ERROR, "%s: No channel for interface!\n",
i->vname);
return;
}
if (i->FaxState & CAPI_FAX_STATE_ACTIVE) {
i->FaxState |= CAPI_FAX_STATE_CONN;
cc_verbose(3, 1, VERBOSE_PREFIX_3 "%s: Fax connection, no EC/DTMF\n",
i->vname);
} else {
capi_echo_canceller(i->owner, EC_FUNCTION_ENABLE);
capi_detect_dtmf(i->owner, 1);
}
if (i->state == CAPI_STATE_CONNECTED) {
capi_signal_answer(i);
}
return;
}
/*
* CAPI DISCONNECT_B3_IND
*/
static void capidev_handle_disconnect_b3_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
_cmsg CMSG2;
DISCONNECT_B3_RESP_HEADER(&CMSG2, capi_ApplID, HEADER_MSGNUM(CMSG), 0);
DISCONNECT_B3_RESP_NCCI(&CMSG2) = NCCI;
_capi_put_cmsg(&CMSG2);
return_on_no_interface("DISCONNECT_B3_IND");
i->isdnstate &= ~(CAPI_ISDN_STATE_B3_UP | CAPI_ISDN_STATE_B3_PEND);
i->reasonb3 = DISCONNECT_B3_IND_REASON_B3(CMSG);
i->NCCI = 0;
if ((i->FaxState & CAPI_FAX_STATE_ACTIVE) && (i->owner)) {
char buffer[CAPI_MAX_STRING];
char *infostring;
unsigned char *ncpi = (unsigned char *)DISCONNECT_B3_IND_NCPI(CMSG);
/* if we have fax infos, set them as variables */
snprintf(buffer, CAPI_MAX_STRING-1, "%d", i->reasonb3);
pbx_builtin_setvar_helper(i->owner, "FAXREASON", buffer);
if (i->reasonb3 == 0) {
pbx_builtin_setvar_helper(i->owner, "FAXREASONTEXT", "OK");
} else if ((infostring = capi_info_string(i->reasonb3)) != NULL) {
pbx_builtin_setvar_helper(i->owner, "FAXREASONTEXT", infostring);
} else {
pbx_builtin_setvar_helper(i->owner, "FAXREASONTEXT", "");
}
if (ncpi) {
snprintf(buffer, CAPI_MAX_STRING-1, "%d", read_capi_word(&ncpi[1]));
pbx_builtin_setvar_helper(i->owner, "FAXRATE", buffer);
snprintf(buffer, CAPI_MAX_STRING-1, "%d", read_capi_word(&ncpi[3]));
pbx_builtin_setvar_helper(i->owner, "FAXRESOLUTION", buffer);
snprintf(buffer, CAPI_MAX_STRING-1, "%d", read_capi_word(&ncpi[5]));
pbx_builtin_setvar_helper(i->owner, "FAXFORMAT", buffer);
snprintf(buffer, CAPI_MAX_STRING-1, "%d", read_capi_word(&ncpi[7]));
pbx_builtin_setvar_helper(i->owner, "FAXPAGES", buffer);
memcpy(buffer, &ncpi[10], ncpi[9]);
buffer[ncpi[9]] = 0;
pbx_builtin_setvar_helper(i->owner, "FAXID", buffer);
}
}
if ((i->state == CAPI_STATE_DISCONNECTING) ||
((!(i->isdnstate & CAPI_ISDN_STATE_B3_SELECT)) &&
(i->FaxState & CAPI_FAX_STATE_SENDMODE))) {
/* active disconnect */
DISCONNECT_REQ_HEADER(&CMSG2, capi_ApplID, get_capi_MessageNumber(), 0);
DISCONNECT_REQ_PLCI(&CMSG2) = PLCI;
_capi_put_cmsg(&CMSG2);
}
capi_controllers[i->controller]->nfreebchannels++;
}
/*
* CAPI CONNECT_B3_IND
*/
static void capidev_handle_connect_b3_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
_cmsg CMSG2;
/* then send a CONNECT_B3_RESP */
CONNECT_B3_RESP_HEADER(&CMSG2, capi_ApplID, HEADER_MSGNUM(CMSG), 0);
CONNECT_B3_RESP_NCCI(&CMSG2) = NCCI;
CONNECT_B3_RESP_REJECT(&CMSG2) = 0;
CONNECT_B3_RESP_NCPI(&CMSG2) = capi_rtp_ncpi(i);
_capi_put_cmsg(&CMSG2);
return_on_no_interface("CONNECT_B3_IND");
i->NCCI = NCCI;
return;
}
/*
* CAPI DISCONNECT_IND
*/
static void capidev_handle_disconnect_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
_cmsg CMSG2;
struct ast_frame fr = { AST_FRAME_CONTROL, AST_CONTROL_HANGUP, };
int state;
DISCONNECT_RESP_HEADER(&CMSG2, capi_ApplID, HEADER_MSGNUM(CMSG) , 0);
DISCONNECT_RESP_PLCI(&CMSG2) = PLCI;
_capi_put_cmsg(&CMSG2);
show_capi_info(i, DISCONNECT_IND_REASON(CMSG));
return_on_no_interface("DISCONNECT_IND");
state = i->state;
i->state = CAPI_STATE_DISCONNECTED;
i->reason = DISCONNECT_IND_REASON(CMSG);
if ((i->owner) && (i->owner->hangupcause == 0)) {
/* set hangupcause, in case there is no
* "cause" information element:
*/
i->owner->hangupcause =
((i->reason & 0xFF00) == 0x3400) ?
i->reason & 0x7F : AST_CAUSE_NORMAL_CLEARING;
}
if (i->FaxState & CAPI_FAX_STATE_ACTIVE) {
/* in capiFax */
switch (i->reason) {
case 0x3400:
case 0x3490:
case 0x349f:
if (i->reasonb3 != 0)
i->FaxState |= CAPI_FAX_STATE_ERROR;
break;
default:
i->FaxState |= CAPI_FAX_STATE_ERROR;
}
i->FaxState &= ~CAPI_FAX_STATE_ACTIVE;
}
if ((i->owner) &&
((state == CAPI_STATE_DID) || (state == CAPI_STATE_INCALL)) &&
(!(i->isdnstate & CAPI_ISDN_STATE_PBX))) {
/* the pbx was not started yet */
cc_verbose(4, 1, VERBOSE_PREFIX_3 "%s: DISCONNECT_IND on incoming without pbx, doing hangup.\n",
i->vname);
capi_channel_task(i->owner, CAPI_CHANNEL_TASK_HANGUP);
return;
}
if (DISCONNECT_IND_REASON(CMSG) == 0x34a2) {
fr.subclass = AST_CONTROL_CONGESTION;
}
if (state == CAPI_STATE_DISCONNECTING) {
interface_cleanup(i);
} else {
local_queue_frame(i, &fr);
/* PLCI is now removed, make sure it doesn't match with new one */
i->PLCI = 0xdead0000;
}
return;
}
/*
* CAPI CONNECT_IND
*/
static void capidev_handle_connect_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt **interface)
{
struct capi_pvt *i;
_cmsg CMSG2;
char *DNID;
char *CID;
int callernplan = 0, callednplan = 0;
int controller = 0;
char *msn;
char buffer[CAPI_MAX_STRING];
char buffer_r[CAPI_MAX_STRING];
char *buffer_rp = buffer_r;
char *magicmsn = "*\0";
char *emptydnid = "\0";
int callpres = 0;
char bchannelinfo[2] = { '0', 0 };
if (*interface) {
/* chan_capi does not support
* double connect indications !
* (This is used to update
* telephone numbers and
* other information)
*/
return;
}
DNID = capi_number(CONNECT_IND_CALLEDPARTYNUMBER(CMSG), 1);
if (!DNID) {
DNID = emptydnid;
}
if (CONNECT_IND_CALLEDPARTYNUMBER(CMSG)[0] > 1) {
callednplan = (CONNECT_IND_CALLEDPARTYNUMBER(CMSG)[1] & 0x7f);
}
CID = capi_number(CONNECT_IND_CALLINGPARTYNUMBER(CMSG), 2);
if (CONNECT_IND_CALLINGPARTYNUMBER(CMSG)[0] > 1) {
callernplan = (CONNECT_IND_CALLINGPARTYNUMBER(CMSG)[1] & 0x7f);
callpres = (CONNECT_IND_CALLINGPARTYNUMBER(CMSG)[2] & 0x63);
}
controller = PLCI & 0xff;
cc_verbose(1, 1, VERBOSE_PREFIX_3 "CONNECT_IND (PLCI=%#x,DID=%s,CID=%s,CIP=%#x,CONTROLLER=%#x)\n",
PLCI, DNID, CID, CONNECT_IND_CIPVALUE(CMSG), controller);
if (CONNECT_IND_BCHANNELINFORMATION(CMSG)) {
bchannelinfo[0] = CONNECT_IND_BCHANNELINFORMATION(CMSG)[1] + '0';
}
/* well...somebody is calling us. let's set up a channel */
cc_mutex_lock(&iflock);
for (i = iflist; i; i = i->next) {
if (i->owner) {
/* has already owner */
continue;
}
if (i->controller != controller) {
continue;
}
if (i->channeltype == CAPI_CHANNELTYPE_B) {
if (bchannelinfo[0] != '0')
continue;
} else {
if (bchannelinfo[0] == '0')
continue;
}
cc_copy_string(buffer, i->incomingmsn, sizeof(buffer));
for (msn = strtok_r(buffer, ",", &buffer_rp); msn; msn = strtok_r(NULL, ",", &buffer_rp)) {
if (!strlen(DNID)) {
/* if no DNID, only accept if '*' was specified */
if (strncasecmp(msn, magicmsn, strlen(msn))) {
continue;
}
cc_copy_string(i->dnid, emptydnid, sizeof(i->dnid));
} else {
/* make sure the number match exactly or may match on ptp mode */
cc_verbose(4, 1, VERBOSE_PREFIX_4 "%s: msn='%s' DNID='%s' %s\n",
i->vname, msn, DNID,
(i->isdnmode == CAPI_ISDNMODE_MSN)?"MSN":"DID");
if ((strcasecmp(msn, DNID)) &&
((i->isdnmode == CAPI_ISDNMODE_MSN) ||
(strlen(msn) >= strlen(DNID)) ||
(strncasecmp(msn, DNID, strlen(msn)))) &&
(strncasecmp(msn, magicmsn, strlen(msn)))) {
continue;
}
cc_copy_string(i->dnid, DNID, sizeof(i->dnid));
}
if (CID != NULL) {
if ((callernplan & 0x70) == CAPI_ETSI_NPLAN_NATIONAL)
snprintf(i->cid, (sizeof(i->cid)-1), "%s%s%s",
i->prefix, capi_national_prefix, CID);
else if ((callernplan & 0x70) == CAPI_ETSI_NPLAN_INTERNAT)
snprintf(i->cid, (sizeof(i->cid)-1), "%s%s%s",
i->prefix, capi_international_prefix, CID);
else
snprintf(i->cid, (sizeof(i->cid)-1), "%s%s",
i->prefix, CID);
} else {
cc_copy_string(i->cid, emptyid, sizeof(i->cid));
}
i->cip = CONNECT_IND_CIPVALUE(CMSG);
i->PLCI = PLCI;
i->MessageNumber = HEADER_MSGNUM(CMSG);
i->cid_ton = callernplan;
capi_new(i, AST_STATE_DOWN);
if (i->isdnmode == CAPI_ISDNMODE_DID) {
i->state = CAPI_STATE_DID;
} else {
i->state = CAPI_STATE_INCALL;
}
if (!i->owner) {
interface_cleanup(i);
break;
}
i->owner->transfercapability = cip2tcap(i->cip);
if (tcap_is_digital(i->owner->transfercapability)) {
i->bproto = CC_BPROTO_TRANSPARENT;
}
i->owner->cid.cid_pres = callpres;
cc_verbose(3, 0, VERBOSE_PREFIX_2 "%s: Incoming call '%s' -> '%s'\n",
i->vname, i->cid, i->dnid);
*interface = i;
cc_mutex_unlock(&iflock);
cc_mutex_lock(&i->lock);
pbx_builtin_setvar_helper(i->owner, "TRANSFERCAPABILITY", transfercapability2str(i->owner->transfercapability));
pbx_builtin_setvar_helper(i->owner, "BCHANNELINFO", bchannelinfo);
sprintf(buffer, "%d", callednplan);
pbx_builtin_setvar_helper(i->owner, "CALLEDTON", buffer);
/*
pbx_builtin_setvar_helper(i->owner, "CALLINGSUBADDRESS",
CONNECT_IND_CALLINGPARTYSUBADDRESS(CMSG));
pbx_builtin_setvar_helper(i->owner, "CALLEDSUBADDRESS",
CONNECT_IND_CALLEDPARTYSUBADDRESS(CMSG));
pbx_builtin_setvar_helper(i->owner, "USERUSERINFO",
CONNECT_IND_USERUSERDATA(CMSG));
*/
/* TODO : set some more variables on incoming call */
/*
pbx_builtin_setvar_helper(i->owner, "ANI2", buffer);
pbx_builtin_setvar_helper(i->owner, "SECONDCALLERID", buffer);
*/
if (i->qsigfeat != QSIG_DISABLED) {
cc_qsig_handle_capiind(CONNECT_IND_FACILITYDATAARRAY(CMSG), i);
}
if ((i->isdnmode == CAPI_ISDNMODE_MSN) && (i->immediate)) {
/* if we don't want to wait for SETUP/SENDING-COMPLETE in MSN mode */
start_pbx_on_match(i, PLCI, HEADER_MSGNUM(CMSG));
}
return;
}
}
cc_mutex_unlock(&iflock);
/* obviously we are not called...so tell capi to ignore this call */
if (capidebug) {
cc_log(LOG_WARNING, "did not find device for msn = %s\n", DNID);
}
CONNECT_RESP_HEADER(&CMSG2, capi_ApplID, HEADER_MSGNUM(CMSG), 0);
CONNECT_RESP_PLCI(&CMSG2) = CONNECT_IND_PLCI(CMSG);
CONNECT_RESP_REJECT(&CMSG2) = 1; /* ignore */
_capi_put_cmsg(&CMSG2);
return;
}
/*
* CAPI FACILITY_CONF
*/
static void capidev_handle_facility_confirmation(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i)
{
int selector;
if (i == NULL)
return;
selector = FACILITY_CONF_FACILITYSELECTOR(CMSG);
if (selector == FACILITYSELECTOR_DTMF) {
cc_verbose(2, 1, VERBOSE_PREFIX_4 "%s: DTMF conf(PLCI=%#x)\n",
i->vname, PLCI);
return;
}
if (selector == i->ecSelector) {
if (FACILITY_CONF_INFO(CMSG)) {
cc_verbose(2, 0, VERBOSE_PREFIX_3 "%s: Error setting up echo canceller (PLCI=%#x)\n",
i->vname, PLCI);
return;
}
if (FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[1] == EC_FUNCTION_DISABLE) {
cc_verbose(3, 0, VERBOSE_PREFIX_3 "%s: Echo canceller successfully disabled (PLCI=%#x)\n",
i->vname, PLCI);
} else {
cc_verbose(3, 0, VERBOSE_PREFIX_3 "%s: Echo canceller successfully set up (PLCI=%#x)\n",
i->vname, PLCI);
}
return;
}
if (selector == FACILITYSELECTOR_SUPPLEMENTARY) {
/* HOLD */
if ((FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[1] == 0x2) &&
(FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[2] == 0x0) &&
((FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[4] != 0x0) ||
(FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[5] != 0x0))) {
cc_verbose(2, 0, VERBOSE_PREFIX_3 "%s: Call on hold (PLCI=%#x)\n",
i->vname, PLCI);
}
return;
}
if (selector == FACILITYSELECTOR_LINE_INTERCONNECT) {
if ((FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[1] == 0x1) &&
(FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[2] == 0x0)) {
/* enable */
if (FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[0] > 12) {
show_capi_info(i, read_capi_word(&FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[12]));
}
} else {
/* disable */
if (FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[0] > 12) {
show_capi_info(i, read_capi_word(&FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[12]));
}
}
return;
}
cc_log(LOG_ERROR, "%s: unhandled FACILITY_CONF 0x%x\n",
i->vname, FACILITY_CONF_FACILITYSELECTOR(CMSG));
}
/*
* show error in confirmation
*/
static void show_capi_conf_error(struct capi_pvt *i,
unsigned int PLCI, u_int16_t wInfo,
u_int16_t wCmd)
{
const char *name = channeltype;
if (i)
name = i->vname;
if ((wCmd == CAPI_P_CONF(ALERT)) && (wInfo == 0x0003)) {
/* Alert already sent by another application */
return;
}
if (wInfo == 0x2002) {
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: "
"0x%x (wrong state) PLCI=0x%x "
"Command=%s,0x%04x\n",
name, wInfo, PLCI, capi_command_to_string(wCmd), wCmd);
} else {
cc_log(LOG_WARNING, "%s: conf_error 0x%04x "
"PLCI=0x%x Command=%s,0x%04x\n",
name, wInfo, PLCI, capi_command_to_string(wCmd), wCmd);
}
return;
}
/*
* check special conditions, wake waiting threads and send outstanding commands
* for the given interface
*/
static void capidev_post_handling(struct capi_pvt *i, _cmsg *CMSG)
{
unsigned short capicommand = CAPICMD(CMSG->Command, CMSG->Subcommand);
if ((i->waitevent == CAPI_WAITEVENT_B3_UP) &&
((i->isdnstate & CAPI_ISDN_STATE_B3_UP))) {
i->waitevent = 0;
ast_cond_signal(&i->event_trigger);
cc_verbose(4, 1, "%s: found and signal for b3 up state.\n",
i->vname);
return;
}
if ((i->waitevent == CAPI_WAITEVENT_B3_DOWN) &&
(!(i->isdnstate & (CAPI_ISDN_STATE_B3_UP | CAPI_ISDN_STATE_B3_PEND)))) {
i->waitevent = 0;
ast_cond_signal(&i->event_trigger);
cc_verbose(4, 1, "%s: found and signal for b3 down state.\n",
i->vname);
return;
}
if ((i->waitevent == CAPI_WAITEVENT_ANSWER_FINISH) &&
(i->state != CAPI_STATE_ANSWERING)) {
i->waitevent = 0;
ast_cond_signal(&i->event_trigger);
cc_verbose(4, 1, "%s: found and signal for finished ANSWER state.\n",
i->vname);
return;
}
if (i->waitevent == capicommand) {
i->waitevent = 0;
ast_cond_signal(&i->event_trigger);
cc_verbose(4, 1, "%s: found and signal for %s\n",
i->vname, capi_cmd2str(CMSG->Command, CMSG->Subcommand));
return;
}
}
/*
* handle CAPI msg
*/
static void capidev_handle_msg(_cmsg *CMSG)
{
unsigned int NCCI = HEADER_CID(CMSG);
unsigned int PLCI = (NCCI & 0xffff);
unsigned short wCmd = HEADER_CMD(CMSG);
unsigned short wMsgNum = HEADER_MSGNUM(CMSG);
unsigned short wInfo = 0xffff;
struct capi_pvt *i = find_interface_by_plci(PLCI);
if ((wCmd == CAPI_P_IND(DATA_B3)) ||
(wCmd == CAPI_P_CONF(DATA_B3))) {
cc_verbose(7, 1, "%s\n", capi_cmsg2str(CMSG));
} else {
cc_verbose(4, 1, "%s\n", capi_cmsg2str(CMSG));
}
if (i != NULL)
cc_mutex_lock(&i->lock);
/* main switch table */
switch (wCmd) {
/*
* CAPI indications
*/
case CAPI_P_IND(CONNECT):
capidev_handle_connect_indication(CMSG, PLCI, NCCI, &i);
break;
case CAPI_P_IND(DATA_B3):
capidev_handle_data_b3_indication(CMSG, PLCI, NCCI, i);
break;
case CAPI_P_IND(CONNECT_B3):
capidev_handle_connect_b3_indication(CMSG, PLCI, NCCI, i);
break;
case CAPI_P_IND(CONNECT_B3_ACTIVE):
capidev_handle_connect_b3_active_indication(CMSG, PLCI, NCCI, i);
break;
case CAPI_P_IND(DISCONNECT_B3):
capidev_handle_disconnect_b3_indication(CMSG, PLCI, NCCI, i);
break;
case CAPI_P_IND(DISCONNECT):
capidev_handle_disconnect_indication(CMSG, PLCI, NCCI, i);
break;
case CAPI_P_IND(FACILITY):
capidev_handle_facility_indication(CMSG, PLCI, NCCI, i);
break;
case CAPI_P_IND(INFO):
capidev_handle_info_indication(CMSG, PLCI, NCCI, i);
break;
case CAPI_P_IND(CONNECT_ACTIVE):
capidev_handle_connect_active_indication(CMSG, PLCI, NCCI, i);
break;
case CAPI_P_IND(MANUFACTURER):
capidev_handle_manufacturer_indication(CMSG, PLCI, NCCI, i);
break;
/*
* CAPI confirmations
*/
case CAPI_P_CONF(FACILITY):
wInfo = FACILITY_CONF_INFO(CMSG);
capidev_handle_facility_confirmation(CMSG, PLCI, NCCI, i);
break;
case CAPI_P_CONF(CONNECT):
wInfo = CONNECT_CONF_INFO(CMSG);
if (i) {
cc_log(LOG_ERROR, "CAPI: CONNECT_CONF for already "
"defined interface received\n");
break;
}
i = find_interface_by_msgnum(wMsgNum);
if ((i == NULL) || (!i->owner))
break;
cc_verbose(1, 1, VERBOSE_PREFIX_3 "%s: received CONNECT_CONF PLCI = %#x\n",
i->vname, PLCI);
if (wInfo == 0) {
i->PLCI = PLCI;
} else {
/* error in connect, so set correct state and signal busy */
i->state = CAPI_STATE_DISCONNECTED;
struct ast_frame fr = { AST_FRAME_CONTROL, AST_CONTROL_BUSY, };
local_queue_frame(i, &fr);
}
break;
case CAPI_P_CONF(CONNECT_B3):
wInfo = CONNECT_B3_CONF_INFO(CMSG);
if(i == NULL) break;
if (wInfo == 0) {
i->NCCI = NCCI;
} else {
i->isdnstate &= ~(CAPI_ISDN_STATE_B3_UP | CAPI_ISDN_STATE_B3_PEND);
}
break;
case CAPI_P_CONF(ALERT):
wInfo = ALERT_CONF_INFO(CMSG);
if(i == NULL) break;
if (!i->owner) break;
if ((wInfo & 0xff00) == 0) {
if (i->state != CAPI_STATE_DISCONNECTING) {
i->state = CAPI_STATE_ALERTING;
if (i->owner->_state == AST_STATE_RING) {
i->owner->rings = 1;
}
}
}
break;
case CAPI_P_CONF(SELECT_B_PROTOCOL):
wInfo = SELECT_B_PROTOCOL_CONF_INFO(CMSG);
if(i == NULL) break;
if (!wInfo) {
i->isdnstate &= ~CAPI_ISDN_STATE_B3_SELECT;
if ((i->outgoing) && (i->FaxState & CAPI_FAX_STATE_SENDMODE)) {
cc_start_b3(i);
}
if ((i->owner) && (i->FaxState & CAPI_FAX_STATE_ACTIVE)) {
capi_echo_canceller(i->owner, EC_FUNCTION_DISABLE);
capi_detect_dtmf(i->owner, 0);
}
}
break;
case CAPI_P_CONF(DATA_B3):
wInfo = DATA_B3_CONF_INFO(CMSG);
if ((i) && (i->B3q > 0) && (i->isdnstate & CAPI_ISDN_STATE_RTP)) {
i->B3q--;
}
if ((i) && (i->FaxState & CAPI_FAX_STATE_SENDMODE)) {
capidev_send_faxdata(i);
}
break;
case CAPI_P_CONF(DISCONNECT):
wInfo = DISCONNECT_CONF_INFO(CMSG);
break;
case CAPI_P_CONF(DISCONNECT_B3):
wInfo = DISCONNECT_B3_CONF_INFO(CMSG);
break;
case CAPI_P_CONF(LISTEN):
wInfo = LISTEN_CONF_INFO(CMSG);
break;
case CAPI_P_CONF(INFO):
wInfo = INFO_CONF_INFO(CMSG);
break;
default:
cc_log(LOG_ERROR, "CAPI: Command=%s,0x%04x",
capi_command_to_string(wCmd), wCmd);
break;
}
if (wInfo != 0xffff) {
if (wInfo) {
show_capi_conf_error(i, PLCI, wInfo, wCmd);
}
show_capi_info(i, wInfo);
}
if (i == NULL) {
cc_verbose(2, 1, VERBOSE_PREFIX_4
"CAPI: Command=%s,0x%04x: no interface for PLCI="
"%#x, MSGNUM=%#x!\n", capi_command_to_string(wCmd),
wCmd, PLCI, wMsgNum);
} else {
capidev_post_handling(i, CMSG);
cc_mutex_unlock(&i->lock);
}
return;
}
/*
* deflect a call
*/
static int pbx_capi_call_deflect(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
_cmsg CMSG;
char fac[64];
int res = 0;
char *number;
int numberlen;
if (!param) {
cc_log(LOG_WARNING, "capi deflection requires an argument (destination phone number)\n");
return -1;
}
number = strsep(&param, "|");
numberlen = strlen(number);
if (!numberlen) {
cc_log(LOG_WARNING, "capi deflection requires an argument (destination phone number)\n");
return -1;
}
if (numberlen > 35) {
cc_log(LOG_WARNING, "capi deflection does only support phone number up to 35 digits\n");
return -1;
}
if (!(capi_controllers[i->controller]->CD)) {
cc_log(LOG_NOTICE,"%s: CALL DEFLECT for %s not supported by controller.\n",
i->vname, c->name);
return -1;
}
cc_mutex_lock(&i->lock);
if ((i->state != CAPI_STATE_INCALL) &&
(i->state != CAPI_STATE_DID) &&
(i->state != CAPI_STATE_ALERTING)) {
cc_mutex_unlock(&i->lock);
cc_log(LOG_WARNING, "wrong state of call for call deflection\n");
return -1;
}
if (i->state != CAPI_STATE_ALERTING) {
pbx_capi_alert(c);
}
fac[0] = 0x0a + numberlen; /* length */
fac[1] = 0x0d; /* call deflection */
fac[2] = 0x00;
fac[3] = 0x07 + numberlen; /* struct len */
fac[4] = 0x01; /* display of own address allowed */
fac[5] = 0x00;
fac[6] = 0x03 + numberlen;
fac[7] = 0x00; /* type of facility number */
fac[8] = 0x00; /* number plan */
fac[9] = 0x00; /* presentation allowed */
fac[10 + numberlen] = 0x00; /* subaddress len */
memcpy((unsigned char *)fac + 10, number, numberlen);
FACILITY_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(),0);
FACILITY_REQ_PLCI(&CMSG) = i->PLCI;
FACILITY_REQ_FACILITYSELECTOR(&CMSG) = FACILITYSELECTOR_SUPPLEMENTARY;
FACILITY_REQ_FACILITYREQUESTPARAMETER(&CMSG) = (_cstruct)&fac;
_capi_put_cmsg_wait_conf(i, &CMSG);
cc_mutex_unlock(&i->lock);
cc_verbose(2, 1, VERBOSE_PREFIX_3 "%s: sent FACILITY_REQ for CD PLCI = %#x\n",
i->vname, i->PLCI);
return(res);
}
/*
* retrieve a hold on call
*/
static int pbx_capi_retrieve(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
_cmsg CMSG;
char fac[4];
unsigned int plci = 0;
if (c->tech == &capi_tech) {
plci = i->onholdPLCI;
} else {
i = NULL;
}
if (param) {
plci = (unsigned int)strtoul(param, NULL, 0);
cc_mutex_lock(&iflock);
for (i = iflist; i; i = i->next) {
if (i->onholdPLCI == plci)
break;
}
cc_mutex_unlock(&iflock);
if (!i) {
plci = 0;
}
}
if (!i) {
cc_log(LOG_WARNING, "%s is not valid or not on capi hold to retrieve!\n",
c->name);
return 0;
}
if ((i->state != CAPI_STATE_ONHOLD) &&
(i->isdnstate & CAPI_ISDN_STATE_HOLD)) {
int waitcount = 20;
while ((waitcount > 0) && (i->state != CAPI_STATE_ONHOLD)) {
usleep(10000);
waitcount--;
}
}
if ((!plci) || (i->state != CAPI_STATE_ONHOLD)) {
cc_log(LOG_WARNING, "%s: 0x%x is not valid or not on hold to retrieve!\n",
i->vname, plci);
return 0;
}
cc_verbose(2, 1, VERBOSE_PREFIX_4 "%s: using PLCI=%#x for retrieve\n",
i->vname, plci);
if (!(capi_controllers[i->controller]->holdretrieve)) {
cc_log(LOG_NOTICE,"%s: RETRIEVE for %s not supported by controller.\n",
i->vname, c->name);
return -1;
}
fac[0] = 3; /* len */
fac[1] = 0x03; /* retrieve */
fac[2] = 0x00;
fac[3] = 0;
FACILITY_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(),0);
FACILITY_REQ_PLCI(&CMSG) = plci;
FACILITY_REQ_FACILITYSELECTOR(&CMSG) = FACILITYSELECTOR_SUPPLEMENTARY;
FACILITY_REQ_FACILITYREQUESTPARAMETER(&CMSG) = (_cstruct)&fac;
_capi_put_cmsg(&CMSG);
cc_verbose(2, 1, VERBOSE_PREFIX_4 "%s: sent RETRIEVE for PLCI=%#x\n",
i->vname, plci);
i->isdnstate &= ~CAPI_ISDN_STATE_HOLD;
pbx_builtin_setvar_helper(i->owner, "_CALLERHOLDID", NULL);
return 0;
}
/*
* explicit transfer a held call
*/
static int pbx_capi_ect(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
struct capi_pvt *ii = NULL;
_cmsg CMSG;
char fac[8];
const char *id;
unsigned int plci = 0;
if ((id = pbx_builtin_getvar_helper(c, "CALLERHOLDID"))) {
plci = (unsigned int)strtoul(id, NULL, 0);
}
if (param) {
plci = (unsigned int)strtoul(param, NULL, 0);
}
if (!plci) {
cc_log(LOG_WARNING, "%s: No id for ECT !\n", i->vname);
return -1;
}
cc_mutex_lock(&iflock);
for (ii = iflist; ii; ii = ii->next) {
if (ii->onholdPLCI == plci)
break;
}
cc_mutex_unlock(&iflock);
if (!ii) {
cc_log(LOG_WARNING, "%s: 0x%x is not on hold !\n",
i->vname, plci);
return -1;
}
cc_verbose(2, 1, VERBOSE_PREFIX_4 "%s: using PLCI=%#x for ECT\n",
i->vname, plci);
if (!(capi_controllers[i->controller]->ECT)) {
cc_log(LOG_WARNING, "%s: ECT for %s not supported by controller.\n",
i->vname, c->name);
return -1;
}
if (!(ii->isdnstate & CAPI_ISDN_STATE_HOLD)) {
cc_log(LOG_WARNING, "%s: PLCI %#x (%s) is not on hold for ECT\n",
i->vname, plci, ii->vname);
return -1;
}
cc_disconnect_b3(i, 1);
if (i->state != CAPI_STATE_CONNECTED) {
cc_log(LOG_WARNING, "%s: destination not connected for ECT\n",
i->vname);
return -1;
}
fac[0] = 7; /* len */
fac[1] = 0x06; /* ECT (function) */
fac[2] = 0x00;
fac[3] = 4; /* len / sservice specific parameter , cstruct */
write_capi_dword(&(fac[4]), plci);
FACILITY_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
FACILITY_REQ_CONTROLLER(&CMSG) = i->controller;
FACILITY_REQ_PLCI(&CMSG) = plci; /* implicit ECT */
FACILITY_REQ_FACILITYSELECTOR(&CMSG) = FACILITYSELECTOR_SUPPLEMENTARY;
FACILITY_REQ_FACILITYREQUESTPARAMETER(&CMSG) = (_cstruct)&fac;
cc_mutex_lock(&ii->lock);
_capi_put_cmsg_wait_conf(ii, &CMSG);
ii->isdnstate &= ~CAPI_ISDN_STATE_HOLD;
ii->isdnstate |= CAPI_ISDN_STATE_ECT;
i->isdnstate |= CAPI_ISDN_STATE_ECT;
cc_mutex_unlock(&ii->lock);
cc_verbose(2, 1, VERBOSE_PREFIX_4 "%s: sent ECT for PLCI=%#x to PLCI=%#x\n",
i->vname, plci, i->PLCI);
return 0;
}
/*
* hold a call
*/
static int pbx_capi_hold(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
_cmsg CMSG;
char buffer[16];
char fac[4];
/* TODO: support holdtype notify */
if ((i->isdnstate & CAPI_ISDN_STATE_HOLD)) {
cc_log(LOG_NOTICE,"%s: %s already on hold.\n",
i->vname, c->name);
return 0;
}
if (!(i->isdnstate & CAPI_ISDN_STATE_B3_UP)) {
cc_log(LOG_NOTICE,"%s: Cannot put on hold %s while not connected.\n",
i->vname, c->name);
return 0;
}
if (!(capi_controllers[i->controller]->holdretrieve)) {
cc_log(LOG_NOTICE,"%s: HOLD for %s not supported by controller.\n",
i->vname, c->name);
return 0;
}
fac[0] = 3; /* len */
fac[1] = 0x02; /* this is a HOLD up */
fac[2] = 0x00;
fac[3] = 0;
FACILITY_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(),0);
FACILITY_REQ_PLCI(&CMSG) = i->PLCI;
FACILITY_REQ_FACILITYSELECTOR(&CMSG) = FACILITYSELECTOR_SUPPLEMENTARY;
FACILITY_REQ_FACILITYREQUESTPARAMETER(&CMSG) = (_cstruct)&fac;
_capi_put_cmsg(&CMSG);
cc_verbose(2, 1, VERBOSE_PREFIX_4 "%s: sent HOLD for PLCI=%#x\n",
i->vname, i->PLCI);
i->onholdPLCI = i->PLCI;
i->isdnstate |= CAPI_ISDN_STATE_HOLD;
snprintf(buffer, sizeof(buffer) - 1, "%d", i->PLCI);
if (param) {
pbx_builtin_setvar_helper(i->owner, param, buffer);
}
pbx_builtin_setvar_helper(i->owner, "_CALLERHOLDID", buffer);
return 0;
}
/*
* report malicious call
*/
static int pbx_capi_malicious(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
_cmsg CMSG;
char fac[4];
if (!(capi_controllers[i->controller]->MCID)) {
cc_log(LOG_NOTICE, "%s: MCID for %s not supported by controller.\n",
i->vname, c->name);
return -1;
}
fac[0] = 3; /* len */
fac[1] = 0x0e; /* MCID */
fac[2] = 0x00;
fac[3] = 0;
FACILITY_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(),0);
FACILITY_REQ_PLCI(&CMSG) = i->PLCI;
FACILITY_REQ_FACILITYSELECTOR(&CMSG) = FACILITYSELECTOR_SUPPLEMENTARY;
FACILITY_REQ_FACILITYREQUESTPARAMETER(&CMSG) = (_cstruct)&fac;
cc_mutex_lock(&i->lock);
_capi_put_cmsg_wait_conf(i, &CMSG);
cc_mutex_unlock(&i->lock);
cc_verbose(2, 1, VERBOSE_PREFIX_4 "%s: sent MCID for PLCI=%#x\n",
i->vname, i->PLCI);
return 0;
}
/*
* set echo cancel
*/
static int pbx_capi_echocancel(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
if (!param) {
cc_log(LOG_WARNING, "Parameter for echocancel missing.\n");
return -1;
}
if (ast_true(param)) {
i->doEC = 1;
capi_echo_canceller(c, EC_FUNCTION_ENABLE);
} else if (ast_false(param)) {
capi_echo_canceller(c, EC_FUNCTION_DISABLE);
i->doEC = 0;
} else {
cc_log(LOG_WARNING, "Parameter for echocancel invalid.\n");
return -1;
}
cc_verbose(2, 0, VERBOSE_PREFIX_4 "%s: echocancel switched %s\n",
i->vname, i->doEC ? "ON":"OFF");
return 0;
}
/*
* set echo squelch
*/
static int pbx_capi_echosquelch(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
if (!param) {
cc_log(LOG_WARNING, "Parameter for echosquelch missing.\n");
return -1;
}
if (ast_true(param)) {
i->doES = 1;
} else if (ast_false(param)) {
i->doES = 0;
} else {
cc_log(LOG_WARNING, "Parameter for echosquelch invalid.\n");
return -1;
}
cc_verbose(2, 0, VERBOSE_PREFIX_4 "%s: echosquelch switched %s\n",
i->vname, i->doES ? "ON":"OFF");
return 0;
}
/*
* set holdtype
*/
static int pbx_capi_holdtype(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
if (!param) {
cc_log(LOG_WARNING, "Parameter for holdtype missing.\n");
return -1;
}
if (!strcasecmp(param, "hold")) {
i->doholdtype = CC_HOLDTYPE_HOLD;
} else if (!strcasecmp(param, "notify")) {
i->doholdtype = CC_HOLDTYPE_NOTIFY;
} else if (!strcasecmp(param, "local")) {
i->doholdtype = CC_HOLDTYPE_LOCAL;
} else {
cc_log(LOG_WARNING, "Parameter for holdtype invalid.\n");
return -1;
}
cc_verbose(2, 0, VERBOSE_PREFIX_4 "%s: holdtype switched to %s\n",
i->vname, param);
return 0;
}
/*
* set early-B3 (progress) for incoming connections
* (only for NT mode)
*/
static int pbx_capi_signal_progress(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
if ((i->state != CAPI_STATE_DID) && (i->state != CAPI_STATE_INCALL)) {
cc_log(LOG_DEBUG, "wrong channel state to signal PROGRESS\n");
return 0;
}
if (!(i->ntmode)) {
cc_log(LOG_WARNING, "PROGRESS sending for non NT-mode not possible\n");
return 0;
}
if ((i->isdnstate & CAPI_ISDN_STATE_B3_UP)) {
cc_verbose(4, 1, VERBOSE_PREFIX_4 "%s: signal_progress in NT: B-channel already up\n",
i->vname);
return 0;
}
cc_select_b(i, NULL);
return 0;
}
/*
* Initiate a Three-Party-Conference (3PTY) with one active and one
* held call
*/
static int pbx_capi_3pty_begin(struct ast_channel *c, char *param)
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
struct capi_pvt *ii = NULL;
_cmsg CMSG;
char fac[8];
const char *id;
unsigned int plci = 0;
if ((id = pbx_builtin_getvar_helper(c, "CALLERHOLDID"))) {
plci = (unsigned int)strtoul(id, NULL, 0);
}
if (param) {
plci = (unsigned int)strtoul(param, NULL, 0);
}
if (!plci) {
cc_log(LOG_WARNING, "%s: No id for 3PTY !\n", i->vname);
return -1;
}
cc_mutex_lock(&iflock);
for (ii = iflist; ii; ii = ii->next) {
if (ii->onholdPLCI == plci)
break;
}
cc_mutex_unlock(&iflock);
if (!ii) {
cc_log(LOG_WARNING, "%s: 0x%x is not on hold !\n",
i->vname, plci);
return -1;
}
cc_verbose(2, 1, VERBOSE_PREFIX_4 "%s: using PLCI=%#x for 3PTY\n",
i->vname, plci);
if (!(ii->isdnstate & CAPI_ISDN_STATE_HOLD)) {
cc_log(LOG_WARNING, "%s: PLCI %#x (%s) is not on hold for 3PTY\n",
i->vname, plci, ii->vname);
return -1;
}
if (!(i->isdnstate & CAPI_ISDN_STATE_B3_UP)) {
cc_log(LOG_NOTICE,"%s: Cannot initiate conference %s while not connected.\n",
i->vname, c->name);
return 0;
}
if (!(capi_controllers[i->controller]->threePTY)) {
cc_log(LOG_NOTICE,"%s: 3PTY for %s not supported by controller.\n",
i->vname, c->name);
return 0;
}
fac[0] = 7; /* len */
fac[1] = 0x07; /* this is a 3PTY Begin */
fac[2] = 0x00;
fac[3] = 4; /* length of PLCI parameter (DWORD) */
write_capi_dword(&(fac[4]), plci);
FACILITY_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
FACILITY_REQ_CONTROLLER(&CMSG) = i->controller;
FACILITY_REQ_PLCI(&CMSG) = plci; /* implicit 3PTY */
FACILITY_REQ_FACILITYSELECTOR(&CMSG) = FACILITYSELECTOR_SUPPLEMENTARY;
FACILITY_REQ_FACILITYREQUESTPARAMETER(&CMSG) = (_cstruct)&fac;
cc_mutex_lock(&ii->lock);
_capi_put_cmsg_wait_conf(ii, &CMSG);
ii->isdnstate &= ~CAPI_ISDN_STATE_HOLD;
ii->isdnstate |= CAPI_ISDN_STATE_3PTY;
i->isdnstate |= CAPI_ISDN_STATE_3PTY;
cc_mutex_unlock(&ii->lock);
cc_verbose(2, 1, VERBOSE_PREFIX_4 "%s: sent 3PTY for PLCI=%#x to PLCI=%#x\n",
i->vname, plci, i->PLCI);
return 0;
}
/*
* struct of capi commands
*/
static struct capicommands_s {
char *cmdname;
int (*cmd)(struct ast_channel *, char *);
int capionly;
} capicommands[] = {
{ "progress", pbx_capi_signal_progress, 1 },
{ "deflect", pbx_capi_call_deflect, 1 },
{ "receivefax", pbx_capi_receive_fax, 1 },
{ "sendfax", pbx_capi_send_fax, 1 },
{ "echosquelch", pbx_capi_echosquelch, 1 },
{ "echocancel", pbx_capi_echocancel, 1 },
{ "malicious", pbx_capi_malicious, 1 },
{ "hold", pbx_capi_hold, 1 },
{ "holdtype", pbx_capi_holdtype, 1 },
{ "retrieve", pbx_capi_retrieve, 0 },
{ "ect", pbx_capi_ect, 1 },
{ "3pty_begin", pbx_capi_3pty_begin, 1 },
{ NULL, NULL, 0 }
};
/*
* capi command interface
*/
static int pbx_capicommand_exec(struct ast_channel *chan, void *data)
{
int res = 0;
#ifdef CC_AST_HAS_VERSION_1_4
struct ast_module_user *u;
#else
struct localuser *u;
#endif
char *s;
char *stringp;
char *command, *params;
struct capicommands_s *capicmd = &capicommands[0];
if (!data) {
cc_log(LOG_WARNING, "capiCommand requires arguments\n");
return -1;
}
#ifdef CC_AST_HAS_VERSION_1_4
u = ast_module_user_add(chan);
#else
LOCAL_USER_ADD(u);
#endif
s = ast_strdupa(data);
stringp = s;
command = strsep(&stringp, "|");
params = stringp;
cc_verbose(2, 1, VERBOSE_PREFIX_3 "capiCommand: '%s' '%s'\n",
command, params);
while(capicmd->cmd) {
if (!strcasecmp(capicmd->cmdname, command))
break;
capicmd++;
}
if (!capicmd->cmd) {
#ifdef CC_AST_HAS_VERSION_1_4
ast_module_user_remove(u);
#else
LOCAL_USER_REMOVE(u);
#endif
cc_log(LOG_WARNING, "Unknown command '%s' for capiCommand\n",
command);
return -1;
}
if ((capicmd->capionly) && (chan->tech != &capi_tech)) {
#ifdef CC_AST_HAS_VERSION_1_4
ast_module_user_remove(u);
#else
LOCAL_USER_REMOVE(u);
#endif
cc_log(LOG_WARNING, "capiCommand works on CAPI channels only, check your extensions.conf!\n");
return -1;
}
res = (capicmd->cmd)(chan, params);
#ifdef CC_AST_HAS_VERSION_1_4
ast_module_user_remove(u);
#else
LOCAL_USER_REMOVE(u);
#endif
return(res);
}
/*
* we don't support own indications
*/
#ifdef CC_AST_HAS_INDICATE_DATA
static int pbx_capi_indicate(struct ast_channel *c, int condition, const void *data, size_t datalen)
#else
static int pbx_capi_indicate(struct ast_channel *c, int condition)
#endif
{
struct capi_pvt *i = CC_CHANNEL_PVT(c);
_cmsg CMSG;
int ret = -1;
if (i == NULL) {
return -1;
}
cc_mutex_lock(&i->lock);
switch (condition) {
case AST_CONTROL_RINGING:
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: Requested RINGING-Indication for %s\n",
i->vname, c->name);
/* TODO somehow enable unhold on ringing, but when wanted only */
/*
if (i->isdnstate & CAPI_ISDN_STATE_HOLD)
pbx_capi_retrieve(c, NULL);
*/
if (i->ntmode) {
if ((i->isdnstate & CAPI_ISDN_STATE_B3_UP)) {
ret = 0;
}
pbx_capi_signal_progress(c, NULL);
pbx_capi_alert(c);
} else {
ret = pbx_capi_alert(c);
}
break;
case AST_CONTROL_BUSY:
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: Requested BUSY-Indication for %s\n",
i->vname, c->name);
if ((i->state == CAPI_STATE_ALERTING) ||
(i->state == CAPI_STATE_DID) || (i->state == CAPI_STATE_INCALL)) {
CONNECT_RESP_HEADER(&CMSG, capi_ApplID, i->MessageNumber, 0);
CONNECT_RESP_PLCI(&CMSG) = i->PLCI;
CONNECT_RESP_REJECT(&CMSG) = 3;
_capi_put_cmsg(&CMSG);
ret = 0;
}
if ((i->isdnstate & CAPI_ISDN_STATE_HOLD))
pbx_capi_retrieve(c, NULL);
break;
case AST_CONTROL_CONGESTION:
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: Requested CONGESTION-Indication for %s\n",
i->vname, c->name);
if ((i->state == CAPI_STATE_ALERTING) ||
(i->state == CAPI_STATE_DID) || (i->state == CAPI_STATE_INCALL)) {
CONNECT_RESP_HEADER(&CMSG, capi_ApplID, i->MessageNumber, 0);
CONNECT_RESP_PLCI(&CMSG) = i->PLCI;
CONNECT_RESP_REJECT(&CMSG) = 4;
_capi_put_cmsg(&CMSG);
ret = 0;
}
if ((i->isdnstate & CAPI_ISDN_STATE_HOLD))
pbx_capi_retrieve(c, NULL);
break;
case AST_CONTROL_PROGRESS:
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: Requested PROGRESS-Indication for %s\n",
i->vname, c->name);
if (i->ntmode) pbx_capi_signal_progress(c, NULL);
break;
case AST_CONTROL_PROCEEDING:
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: Requested PROCEEDING-Indication for %s\n",
i->vname, c->name);
if (i->ntmode) pbx_capi_signal_progress(c, NULL);
break;
case AST_CONTROL_HOLD:
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: Requested HOLD-Indication for %s\n",
i->vname, c->name);
if (i->doholdtype != CC_HOLDTYPE_LOCAL) {
ret = pbx_capi_hold(c, NULL);
}
#ifdef CC_AST_HAS_VERSION_1_4
else {
ast_moh_start(c, data, i->mohinterpret);
}
#endif
break;
case AST_CONTROL_UNHOLD:
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: Requested UNHOLD-Indication for %s\n",
i->vname, c->name);
if (i->doholdtype != CC_HOLDTYPE_LOCAL) {
ret = pbx_capi_retrieve(c, NULL);
}
#ifdef CC_AST_HAS_VERSION_1_4
else {
ast_moh_stop(c);
}
#endif
break;
case -1: /* stop indications */
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: Requested Indication-STOP for %s\n",
i->vname, c->name);
if ((i->isdnstate & CAPI_ISDN_STATE_HOLD))
pbx_capi_retrieve(c, NULL);
break;
default:
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: Requested unknown Indication %d for %s\n",
i->vname, condition, c->name);
break;
}
cc_mutex_unlock(&i->lock);
return(ret);
}
/*
* PBX wants to know the state for a specific device
*/
static int pbx_capi_devicestate(void *data)
{
int res = AST_DEVICE_UNKNOWN;
if (!data) {
cc_verbose(3, 1, VERBOSE_PREFIX_2 "No data for capi_devicestate\n");
return res;
}
cc_verbose(3, 1, VERBOSE_PREFIX_4 "CAPI devicestate requested for %s\n",
(char *)data);
return res;
}
static void capi_do_channel_task(void)
{
if (chan_for_task == NULL)
return;
switch(channel_task) {
case CAPI_CHANNEL_TASK_HANGUP:
/* deferred (out of lock) hangup */
ast_hangup(chan_for_task);
break;
case CAPI_CHANNEL_TASK_SOFTHANGUP:
/* deferred (out of lock) soft-hangup */
ast_softhangup(chan_for_task, AST_SOFTHANGUP_DEV);
break;
case CAPI_CHANNEL_TASK_PICKUP:
if (ast_pickup_call(chan_for_task)) {
cc_verbose(3, 1, VERBOSE_PREFIX_2 "%s: Pickup not possible.\n",
chan_for_task->name);
}
ast_hangup(chan_for_task);
break;
default:
/* nothing to do */
break;
}
chan_for_task = NULL;
channel_task = CAPI_CHANNEL_TASK_NONE;
}
/*
* module stuff, monitor...
*/
static void *capidev_loop(void *data)
{
unsigned int Info;
_cmsg monCMSG;
for (/* for ever */;;) {
switch(Info = capidev_check_wait_get_cmsg(&monCMSG)) {
case 0x0000:
capidev_handle_msg(&monCMSG);
capi_do_channel_task();
break;
case 0x1104:
/* CAPI queue is empty */
break;
case 0x1101:
/* The application ID is no longer valid.
* This error is fatal, and "chan_capi"
* should restart.
*/
cc_log(LOG_ERROR, "CAPI reports application ID no longer valid, PANIC\n");
return NULL;
default:
/* something is wrong! */
break;
} /* switch */
} /* for */
/* never reached */
return NULL;
}
/*
* GAIN
*/
static void capi_gains(struct cc_capi_gains *g, float rxgain, float txgain)
{
int i = 0;
int x = 0;
if (rxgain != 1.0) {
for (i = 0; i < 256; i++) {
if (capi_capability == AST_FORMAT_ULAW) {
x = (int)(((float)capiULAW2INT[i]) * rxgain);
} else {
x = (int)(((float)capiALAW2INT[i]) * rxgain);
}
if (x > 32767)
x = 32767;
if (x < -32767)
x = -32767;
if (capi_capability == AST_FORMAT_ULAW) {
g->rxgains[i] = capi_int2ulaw(x);
} else {
g->rxgains[i] = capi_int2alaw(x);
}
}
}
if (txgain != 1.0) {
for (i = 0; i < 256; i++) {
if (capi_capability == AST_FORMAT_ULAW) {
x = (int)(((float)capiULAW2INT[i]) * txgain);
} else {
x = (int)(((float)capiALAW2INT[i]) * txgain);
}
if (x > 32767)
x = 32767;
if (x < -32767)
x = -32767;
if (capi_capability == AST_FORMAT_ULAW) {
g->txgains[i] = capi_int2ulaw(x);
} else {
g->txgains[i] = capi_int2alaw(x);
}
}
}
}
/*
* create new interface
*/
int mkif(struct cc_capi_conf *conf)
{
struct capi_pvt *tmp;
int i = 0;
u_int16_t unit;
for (i = 0; i <= conf->devices; i++) {
tmp = malloc(sizeof(struct capi_pvt));
if (!tmp) {
return -1;
}
memset(tmp, 0, sizeof(struct capi_pvt));
tmp->readerfd = -1;
tmp->writerfd = -1;
cc_mutex_init(&tmp->lock);
ast_cond_init(&tmp->event_trigger, NULL);
if (i == 0) {
snprintf(tmp->name, sizeof(tmp->name) - 1, "%s-pseudo-D", conf->name);
tmp->channeltype = CAPI_CHANNELTYPE_D;
} else {
cc_copy_string(tmp->name, conf->name, sizeof(tmp->name));
tmp->channeltype = CAPI_CHANNELTYPE_B;
}
snprintf(tmp->vname, sizeof(tmp->vname) - 1, "%s#%02d", conf->name, i);
cc_copy_string(tmp->context, conf->context, sizeof(tmp->context));
cc_copy_string(tmp->incomingmsn, conf->incomingmsn, sizeof(tmp->incomingmsn));
cc_copy_string(tmp->defaultcid, conf->defaultcid, sizeof(tmp->defaultcid));
cc_copy_string(tmp->prefix, conf->prefix, sizeof(tmp->prefix));
cc_copy_string(tmp->accountcode, conf->accountcode, sizeof(tmp->accountcode));
cc_copy_string(tmp->language, conf->language, sizeof(tmp->language));
#ifdef CC_AST_HAS_VERSION_1_4
cc_copy_string(tmp->mohinterpret, conf->mohinterpret, sizeof(tmp->mohinterpret));
memcpy(&tmp->jbconf, &conf->jbconf, sizeof(struct ast_jb_conf));
#endif
unit = atoi(conf->controllerstr);
/* There is no reason not to
* allow controller 0 !
*
* Hide problem from user:
*/
if (unit == 0) {
/* The ISDN4BSD kernel will modulo
* the controller number by
* "capi_num_controllers", so this
* is equivalent to "0":
*/
unit = capi_num_controllers;
}
if (unit > capi_num_controllers){
free(tmp);
cc_verbose(2, 0, VERBOSE_PREFIX_3 "controller %d invalid, ignoring interface.\n",
unit);
return 0;
}
/* always range check user input */
if (unit > CAPI_MAX_CONTROLLERS)
unit = CAPI_MAX_CONTROLLERS;
tmp->controller = unit;
capi_used_controllers |= (1 << unit);
tmp->doEC = conf->echocancel;
tmp->doEC_global = conf->echocancel;
tmp->ecOption = conf->ecoption;
if (conf->ecnlp) tmp->ecOption |= 0x01; /* bit 0 of ec-option is NLP */
tmp->ecTail = conf->ectail;
tmp->isdnmode = conf->isdnmode;
tmp->ntmode = conf->ntmode;
tmp->ES = conf->es;
tmp->callgroup = conf->callgroup;
tmp->pickupgroup = conf->pickupgroup;
tmp->group = conf->group;
tmp->amaflags = conf->amaflags;
tmp->immediate = conf->immediate;
tmp->holdtype = conf->holdtype;
tmp->ecSelector = conf->ecSelector;
tmp->bridge = conf->bridge;
tmp->FaxState = conf->faxsetting;
tmp->smoother = ast_smoother_new(CAPI_MAX_B3_BLOCK_SIZE);
tmp->rxgain = conf->rxgain;
tmp->txgain = conf->txgain;
capi_gains(&tmp->g, conf->rxgain, conf->txgain);
tmp->doDTMF = conf->softdtmf;
tmp->capability = conf->capability;
tmp->qsigfeat = conf->qsigfeat;
tmp->next = iflist; /* prepend */
iflist = tmp;
cc_verbose(2, 0, VERBOSE_PREFIX_3 "capi %c %s (%s:%s) contr=%d devs=%d EC=%d,opt=%d,tail=%d\n",
(tmp->channeltype == CAPI_CHANNELTYPE_B)? 'B' : 'D',
tmp->vname, tmp->incomingmsn, tmp->context, tmp->controller,
conf->devices, tmp->doEC, tmp->ecOption, tmp->ecTail);
}
return 0;
}
/*
* eval supported services
*/
static void supported_sservices(struct cc_capi_controller *cp)
{
MESSAGE_EXCHANGE_ERROR error;
_cmsg CMSG, CMSG2;
struct timeval tv;
unsigned char fac[20];
unsigned int services;
memset(fac, 0, sizeof(fac));
FACILITY_REQ_HEADER(&CMSG, capi_ApplID, get_capi_MessageNumber(), 0);
FACILITY_REQ_CONTROLLER(&CMSG) = cp->controller;
FACILITY_REQ_FACILITYSELECTOR(&CMSG) = FACILITYSELECTOR_SUPPLEMENTARY;
fac[0] = 3;
FACILITY_REQ_FACILITYREQUESTPARAMETER(&CMSG) = (_cstruct)&fac;
_capi_put_cmsg(&CMSG);
tv.tv_sec = 1;
tv.tv_usec = 0;
for (/* for ever */;;) {
error = capi20_waitformessage(capi_ApplID, &tv);
error = capi_get_cmsg(&CMSG2, capi_ApplID);
if (error == 0) {
if (IS_FACILITY_CONF(&CMSG2)) {
cc_verbose(5, 0, VERBOSE_PREFIX_4 "FACILITY_CONF INFO = %#x\n",
FACILITY_CONF_INFO(&CMSG2));
break;
}
}
}
/* parse supported sservices */
if (FACILITY_CONF_FACILITYSELECTOR(&CMSG2) != FACILITYSELECTOR_SUPPLEMENTARY) {
cc_log(LOG_NOTICE, "unexpected FACILITY_SELECTOR = %#x\n",
FACILITY_CONF_FACILITYSELECTOR(&CMSG2));
return;
}
if (FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(&CMSG2)[4] != 0) {
cc_log(LOG_NOTICE, "supplementary services info = %#x\n",
(short)FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(&CMSG2)[1]);
return;
}
services = read_capi_dword(&(FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(&CMSG2)[6]));
cc_verbose(3, 0, VERBOSE_PREFIX_4 "supplementary services : 0x%08x\n",
services);
/* success, so set the features we have */
cc_verbose(3, 0, VERBOSE_PREFIX_4 " ");
if (services & 0x0001) {
cp->holdretrieve = 1;
cc_verbose(3, 0, "HOLD/RETRIEVE ");
}
if (services & 0x0002) {
cp->terminalportability = 1;
cc_verbose(3, 0, "TERMINAL-PORTABILITY ");
}
if (services & 0x0004) {
cp->ECT = 1;
cc_verbose(3, 0, "ECT ");
}
if (services & 0x0008) {
cp->threePTY = 1;
cc_verbose(3, 0, "3PTY ");
}
if (services & 0x0010) {
cp->CF = 1;
cc_verbose(3, 0, "CF ");
}
if (services & 0x0020) {
cp->CD = 1;
cc_verbose(3, 0, "CD ");
}
if (services & 0x0040) {
cp->MCID = 1;
cc_verbose(3, 0, "MCID ");
}
if (services & 0x0080) {
cp->CCBS = 1;
cc_verbose(3, 0, "CCBS ");
}
if (services & 0x0100) {
cp->MWI = 1;
cc_verbose(3, 0, "MWI ");
}
if (services & 0x0200) {
cp->CCNR = 1;
cc_verbose(3, 0, "CCNR ");
}
if (services & 0x0400) {
cp->CONF = 1;
cc_verbose(3, 0, "CONF");
}
cc_verbose(3, 0, "\n");
return;
}
/*
* helper functions to convert conf value to string
*/
static char *show_bproto(int bproto)
{
switch(bproto) {
case CC_BPROTO_TRANSPARENT:
return "trans";
case CC_BPROTO_FAXG3:
return " fax ";
case CC_BPROTO_RTP:
return " rtp ";
}
return " ??? ";
}
static char *show_state(int state)
{
switch(state) {
case CAPI_STATE_ALERTING:
return "Ring ";
case CAPI_STATE_CONNECTED:
return "Conn ";
case CAPI_STATE_DISCONNECTING:
return "discP";
case CAPI_STATE_DISCONNECTED:
return "Disc ";
case CAPI_STATE_CONNECTPENDING:
return "Dial ";
case CAPI_STATE_ANSWERING:
return "Answ ";
case CAPI_STATE_DID:
return "DIDin";
case CAPI_STATE_INCALL:
return "icall";
case CAPI_STATE_ONHOLD:
return "Hold ";
}
return "-----";
}
static char *show_isdnstate(unsigned int isdnstate, char *str)
{
str[0] = '\0';
if (isdnstate & CAPI_ISDN_STATE_PBX)
strcat(str, "*");
if (isdnstate & CAPI_ISDN_STATE_LI)
strcat(str, "G");
if (isdnstate & CAPI_ISDN_STATE_B3_UP)
strcat(str, "B");
if (isdnstate & CAPI_ISDN_STATE_B3_PEND)
strcat(str, "b");
if (isdnstate & CAPI_ISDN_STATE_PROGRESS)
strcat(str, "P");
if (isdnstate & CAPI_ISDN_STATE_HOLD)
strcat(str, "H");
if (isdnstate & CAPI_ISDN_STATE_ECT)
strcat(str, "T");
if (isdnstate & CAPI_ISDN_STATE_3PTY)
strcat(str, "3");
if (isdnstate & (CAPI_ISDN_STATE_SETUP | CAPI_ISDN_STATE_SETUP_ACK))
strcat(str, "S");
return str;
}
/*
* do command capi show channels
*/
static int pbxcli_capi_show_channels(int fd, int argc, char *argv[])
{
struct capi_pvt *i;
char iochar;
char i_state[80];
char b3q[16];
if (argc != 3)
return RESULT_SHOWUSAGE;
ast_cli(fd, "CAPI B-channel information:\n");
ast_cli(fd, "Line-Name NTmode state i/o bproto isdnstate ton number\n");
ast_cli(fd, "----------------------------------------------------------------\n");
cc_mutex_lock(&iflock);
for (i = iflist; i; i = i->next) {
if (i->channeltype != CAPI_CHANNELTYPE_B)
continue;
if ((i->state == 0) || (i->state == CAPI_STATE_DISCONNECTED))
iochar = '-';
else if (i->outgoing)
iochar = 'O';
else
iochar = 'I';
if (capidebug)
snprintf(b3q, sizeof(b3q), " B3q=%d", i->B3q);
else
b3q[0] = '\0';
ast_cli(fd,
"%-16s %s %s %c %s %-10s 0x%02x '%s'->'%s'%s\n",
i->vname,
i->ntmode ? "yes":"no ",
show_state(i->state),
iochar,
show_bproto(i->bproto),
show_isdnstate(i->isdnstate, i_state),
i->cid_ton,
i->cid,
i->dnid,
b3q
);
}
cc_mutex_unlock(&iflock);
return RESULT_SUCCESS;
}
/*
* do command capi info
*/
static int pbxcli_capi_info(int fd, int argc, char *argv[])
{
int i = 0;
if (argc != 2)
return RESULT_SHOWUSAGE;
for (i = 1; i <= capi_num_controllers; i++) {
if (capi_controllers[i] != NULL) {
ast_cli(fd, "Contr%d: %d B channels total, %d B channels free.\n",
i, capi_controllers[i]->nbchannels,
capi_controllers[i]->nfreebchannels);
}
}
return RESULT_SUCCESS;
}
/*
* enable debugging
*/
static int pbxcli_capi_do_debug(int fd, int argc, char *argv[])
{
if (argc != 2)
return RESULT_SHOWUSAGE;
capidebug = 1;
ast_cli(fd, "CAPI Debugging Enabled\n");
return RESULT_SUCCESS;
}
/*
* disable debugging
*/
static int pbxcli_capi_no_debug(int fd, int argc, char *argv[])
{
if (argc != 3)
return RESULT_SHOWUSAGE;
capidebug = 0;
ast_cli(fd, "CAPI Debugging Disabled\n");
return RESULT_SUCCESS;
}
/*
* usages
*/
static char info_usage[] =
"Usage: capi info\n"
" Show info about B channels on controllers.\n";
static char show_channels_usage[] =
"Usage: capi show channels\n"
" Show info about B channels.\n";
static char debug_usage[] =
"Usage: capi debug\n"
" Enables dumping of CAPI packets for debugging purposes\n";
static char no_debug_usage[] =
"Usage: capi no debug\n"
" Disables dumping of CAPI packets for debugging purposes\n";
/*
* define commands
*/
static struct ast_cli_entry cli_info =
{ { "capi", "info", NULL }, pbxcli_capi_info, "Show CAPI info", info_usage };
static struct ast_cli_entry cli_show_channels =
{ { "capi", "show", "channels", NULL }, pbxcli_capi_show_channels, "Show B-channel info", show_channels_usage };
static struct ast_cli_entry cli_debug =
{ { "capi", "debug", NULL }, pbxcli_capi_do_debug, "Enable CAPI debugging", debug_usage };
static struct ast_cli_entry cli_no_debug =
{ { "capi", "no", "debug", NULL }, pbxcli_capi_no_debug, "Disable CAPI debugging", no_debug_usage };
static const struct ast_channel_tech capi_tech = {
.type = channeltype,
.description = tdesc,
.capabilities = AST_FORMAT_ALAW,
.requester = pbx_capi_request,
#ifdef CC_AST_HAS_VERSION_1_4
.send_digit_begin = pbx_capi_send_digit_begin,
.send_digit_end = pbx_capi_send_digit,
#else
.send_digit = pbx_capi_send_digit,
#endif
.send_text = NULL,
.call = pbx_capi_call,
.hangup = pbx_capi_hangup,
.answer = pbx_capi_answer,
.read = pbx_capi_read,
.write = pbx_capi_write,
.bridge = pbx_capi_bridge,
.exception = NULL,
.indicate = pbx_capi_indicate,
.fixup = pbx_capi_fixup,
.setoption = NULL,
.devicestate = pbx_capi_devicestate,
};
/*
* register at CAPI interface
*/
static int cc_register_capi(unsigned blocksize, unsigned connections)
{
u_int16_t error = 0;
if (capi_ApplID != CAPI_APPLID_UNUSED) {
if (capi20_release(capi_ApplID) != 0)
cc_log(LOG_WARNING,"Unable to unregister from CAPI!\n");
}
cc_verbose(3, 0, VERBOSE_PREFIX_3 "Registering at CAPI "
"(blocksize=%d maxlogicalchannels)\n", blocksize, connections);
#if (CAPI_OS_HINT == 2)
error = capi20_register(connections, CAPI_MAX_B3_BLOCKS,
blocksize, &capi_ApplID, CAPI_STACK_VERSION);
#else
error = capi20_register(connections, CAPI_MAX_B3_BLOCKS,
blocksize, &capi_ApplID);
#endif
if (error != 0) {
capi_ApplID = CAPI_APPLID_UNUSED;
cc_log(LOG_NOTICE,"unable to register application at CAPI!\n");
return -1;
}
return 0;
}
/*
* init capi stuff
*/
static int cc_init_capi(void)
{
#if (CAPI_OS_HINT == 1)
CAPIProfileBuffer_t profile;
#else
struct cc_capi_profile profile;
#endif
struct cc_capi_controller *cp;
int controller;
unsigned int privateoptions;
if (capi20_isinstalled() != 0) {
cc_log(LOG_WARNING, "CAPI not installed, CAPI disabled!\n");
return -1;
}
if (cc_register_capi(CAPI_MAX_B3_BLOCK_SIZE, 2))
return -1;
#if (CAPI_OS_HINT == 1)
if (capi20_get_profile(0, &profile) != 0) {
#elif (CAPI_OS_HINT == 2)
if (capi20_get_profile(0, &profile, sizeof(profile)) != 0) {
#else
if (capi20_get_profile(0, (unsigned char *)&profile) != 0) {
#endif
cc_log(LOG_NOTICE,"unable to get CAPI profile!\n");
return -1;
}
#if (CAPI_OS_HINT == 1)
capi_num_controllers = profile.wCtlr;
#else
capi_num_controllers = profile.ncontrollers;
#endif
cc_verbose(3, 0, VERBOSE_PREFIX_2 "This box has %d capi controller(s).\n",
capi_num_controllers);
for (controller = 1 ;controller <= capi_num_controllers; controller++) {
memset(&profile, 0, sizeof(profile));
#if (CAPI_OS_HINT == 1)
capi20_get_profile(controller, &profile);
#elif (CAPI_OS_HINT == 2)
capi20_get_profile(controller, &profile, sizeof(profile));
#else
capi20_get_profile(controller, (unsigned char *)&profile);
#endif
cp = malloc(sizeof(struct cc_capi_controller));
if (!cp) {
cc_log(LOG_ERROR, "Error allocating memory for struct cc_capi_controller\n");
return -1;
}
memset(cp, 0, sizeof(struct cc_capi_controller));
cp->controller = controller;
#if (CAPI_OS_HINT == 1)
cp->nbchannels = profile.wNumBChannels;
cp->nfreebchannels = profile.wNumBChannels;
if (profile.dwGlobalOptions & CAPI_PROFILE_DTMF_SUPPORT) {
#else
cp->nbchannels = profile.nbchannels;
cp->nfreebchannels = profile.nbchannels;
if (profile.globaloptions & 0x08) {
#endif
cc_verbose(3, 0, VERBOSE_PREFIX_3 "CAPI/contr%d supports DTMF\n",
controller);
cp->dtmf = 1;
}
#if (CAPI_OS_HINT == 1)
if (profile.dwGlobalOptions & 0x01) {
#else
if (profile.globaloptions2 & 0x01) {
#endif
cc_verbose(3, 0, VERBOSE_PREFIX_3 "CAPI/contr%d supports broadband (or old echo-cancel)\n",
controller);
cp->broadband = 1;
}
#if (CAPI_OS_HINT == 1)
if (profile.dwGlobalOptions & CAPI_PROFILE_ECHO_CANCELLATION) {
#else
if (profile.globaloptions2 & 0x02) {
#endif
cc_verbose(3, 0, VERBOSE_PREFIX_3 "CAPI/contr%d supports echo cancellation\n",
controller);
cp->echocancel = 1;
}
#if (CAPI_OS_HINT == 1)
if (profile.dwGlobalOptions & CAPI_PROFILE_SUPPLEMENTARY_SERVICES) {
#else
if (profile.globaloptions & 0x10) {
#endif
cp->sservices = 1;
}
#if (CAPI_OS_HINT == 1)
if (profile.dwGlobalOptions & 0x80) {
#else
if (profile.globaloptions & 0x80) {
#endif
cc_verbose(3, 0, VERBOSE_PREFIX_3 "CAPI/contr%d supports line interconnect\n",
controller);
cp->lineinterconnect = 1;
}
if (cp->sservices == 1) {
cc_verbose(3, 0, VERBOSE_PREFIX_3 "CAPI/contr%d supports supplementary services\n",
controller);
supported_sservices(cp);
}
/* New profile options for e.g. RTP with Eicon DIVA */
privateoptions = read_capi_dword(&profile.manufacturer[0]);
cc_verbose(3, 0, VERBOSE_PREFIX_3 "CAPI/contr%d private options=0x%08x\n",
controller, privateoptions);
if (privateoptions & 0x02) {
cc_verbose(3, 0, VERBOSE_PREFIX_4 "VoIP/RTP is supported\n");
voice_over_ip_profile(cp);
}
if (privateoptions & 0x04) {
cc_verbose(3, 0, VERBOSE_PREFIX_4 "T.38 is supported (not implemented yet)\n");
}
capi_controllers[controller] = cp;
}
return 0;
}
/*
* final capi init
*/
static int cc_post_init_capi(void)
{
struct capi_pvt *i;
int controller;
unsigned error;
int rtp_ext_size = 0;
unsigned needchannels = 0;
for (i = iflist; i && !rtp_ext_size; i = i->next) {
/* if at least one line wants RTP, we need to re-register with
bigger block size for RTP-header */
if (capi_controllers[i->controller]->rtpcodec & i->capability) {
cc_verbose(3, 0, VERBOSE_PREFIX_4 "at least one CAPI controller wants RTP.\n");
rtp_ext_size = RTP_HEADER_SIZE;
}
}
for (controller = 1; controller <= capi_num_controllers; controller++) {
if (capi_controllers[controller] != NULL) {
needchannels += (capi_controllers[controller]->nbchannels + 1);
}
}
if (cc_register_capi(CAPI_MAX_B3_BLOCK_SIZE + rtp_ext_size, needchannels))
return -1;
for (controller = 1; controller <= capi_num_controllers; controller++) {
if (capi_used_controllers & (1 << controller)) {
if ((error = ListenOnController(ALL_SERVICES, controller)) != 0) {
cc_log(LOG_ERROR,"Unable to listen on contr%d (error=0x%x)\n",
controller, error);
} else {
cc_verbose(2, 0, VERBOSE_PREFIX_3 "listening on contr%d CIPmask = %#x\n",
controller, ALL_SERVICES);
}
} else {
cc_log(LOG_NOTICE, "Unused contr%d\n",controller);
}
}
return 0;
}
/*
* build the interface according to configs
*/
static int conf_interface(struct cc_capi_conf *conf, struct ast_variable *v)
{
int y;
#define CONF_STRING(var, token) \
if (!strcasecmp(v->name, token)) { \
cc_copy_string(var, v->value, sizeof(var)); \
continue; \
} else
#define CONF_INTEGER(var, token) \
if (!strcasecmp(v->name, token)) { \
var = atoi(v->value); \
continue; \
} else
#define CONF_TRUE(var, token, val) \
if (!strcasecmp(v->name, token)) { \
if (ast_true(v->value)) \
var = val; \
continue; \
} else
for (; v; v = v->next) {
#ifdef CC_AST_HAS_VERSION_1_4
/* handle jb conf */
if (!ast_jb_read_conf(&conf->jbconf, v->name, v->value)) {
continue;
}
CONF_STRING(conf->mohinterpret, "mohinterpret")
#endif
CONF_INTEGER(conf->devices, "devices")
CONF_STRING(conf->context, "context")
CONF_STRING(conf->incomingmsn, "incomingmsn")
CONF_STRING(conf->defaultcid, "defaultcid")
CONF_STRING(conf->controllerstr, "controller")
CONF_STRING(conf->prefix, "prefix")
CONF_STRING(conf->accountcode, "accountcode")
CONF_STRING(conf->language, "language")
if (!strcasecmp(v->name, "softdtmf")) {
if ((!conf->softdtmf) && (ast_true(v->value))) {
conf->softdtmf = 1;
}
continue;
} else
CONF_TRUE(conf->softdtmf, "relaxdtmf", 2)
if (!strcasecmp(v->name, "holdtype")) {
if (!strcasecmp(v->value, "hold")) {
conf->holdtype = CC_HOLDTYPE_HOLD;
} else if (!strcasecmp(v->value, "notify")) {
conf->holdtype = CC_HOLDTYPE_NOTIFY;
} else {
conf->holdtype = CC_HOLDTYPE_LOCAL;
}
continue;
} else
CONF_TRUE(conf->immediate, "immediate", 1)
CONF_TRUE(conf->es, "echosquelch", 1)
CONF_TRUE(conf->bridge, "bridge", 1)
CONF_TRUE(conf->ntmode, "ntmode", 1)
CONF_INTEGER(conf->qsigfeat, "qsig")
if (!strcasecmp(v->name, "callgroup")) {
conf->callgroup = ast_get_group(v->value);
continue;
} else
if (!strcasecmp(v->name, "pickupgroup")) {
conf->pickupgroup = ast_get_group(v->value);
continue;
} else
if (!strcasecmp(v->name, "group")) {
conf->group = ast_get_group(v->value);
continue;
} else
if (!strcasecmp(v->name, "amaflags")) {
y = ast_cdr_amaflags2int(v->value);
if (y < 0) {
ast_log(LOG_WARNING, "Invalid AMA flags: %s at line %d\n",
v->value, v->lineno);
} else {
conf->amaflags = y;
}
} else
if (!strcasecmp(v->name, "rxgain")) {
if (sscanf(v->value, "%f", &conf->rxgain) != 1) {
cc_log(LOG_ERROR,"invalid rxgain\n");
}
continue;
} else
if (!strcasecmp(v->name, "txgain")) {
if (sscanf(v->value, "%f", &conf->txgain) != 1) {
cc_log(LOG_ERROR, "invalid txgain\n");
}
continue;
} else
if (!strcasecmp(v->name, "echocancelold")) {
if (ast_true(v->value)) {
conf->ecSelector = 6;
}
continue;
} else
if (!strcasecmp(v->name, "faxdetect")) {
if (!strcasecmp(v->value, "incoming")) {
conf->faxsetting |= CAPI_FAX_DETECT_INCOMING;
conf->faxsetting &= ~CAPI_FAX_DETECT_OUTGOING;
} else if (!strcasecmp(v->value, "outgoing")) {
conf->faxsetting |= CAPI_FAX_DETECT_OUTGOING;
conf->faxsetting &= ~CAPI_FAX_DETECT_INCOMING;
} else if (!strcasecmp(v->value, "both") || ast_true(v->value))
conf->faxsetting |= (CAPI_FAX_DETECT_OUTGOING | CAPI_FAX_DETECT_INCOMING);
else
conf->faxsetting &= ~(CAPI_FAX_DETECT_OUTGOING | CAPI_FAX_DETECT_INCOMING);
} else
if (!strcasecmp(v->name, "echocancel")) {
if (ast_true(v->value)) {
conf->echocancel = 1;
conf->ecoption = EC_OPTION_DISABLE_G165;
}
else if (ast_false(v->value)) {
conf->echocancel = 0;
conf->ecoption = 0;
}
else if (!strcasecmp(v->value, "g165") || !strcasecmp(v->value, "g.165")) {
conf->echocancel = 1;
conf->ecoption = EC_OPTION_DISABLE_G165;
}
else if (!strcasecmp(v->value, "g164") || !strcasecmp(v->value, "g.164")) {
conf->echocancel = 1;
conf->ecoption = EC_OPTION_DISABLE_G164_OR_G165;
}
else if (!strcasecmp(v->value, "force")) {
conf->echocancel = 1;
conf->ecoption = EC_OPTION_DISABLE_NEVER;
}
else {
cc_log(LOG_ERROR,"Unknown echocancel parameter \"%s\" -- ignoring\n",v->value);
}
continue;
} else
CONF_TRUE(conf->ecnlp, "echocancelnlp", 1)
if (!strcasecmp(v->name, "echotail")) {
conf->ectail = atoi(v->value);
if (conf->ectail > 255) {
conf->ectail = 255;
}
continue;
} else
if (!strcasecmp(v->name, "isdnmode")) {
if (!strcasecmp(v->value, "did"))
conf->isdnmode = CAPI_ISDNMODE_DID;
else if (!strcasecmp(v->value, "msn"))
conf->isdnmode = CAPI_ISDNMODE_MSN;
else
cc_log(LOG_ERROR,"Unknown isdnmode parameter \"%s\" -- ignoring\n",
v->value);
} else
if (!strcasecmp(v->name, "allow")) {
ast_parse_allow_disallow(&conf->prefs, &conf->capability, v->value, 1);
} else
if (!strcasecmp(v->name, "disallow")) {
ast_parse_allow_disallow(&conf->prefs, &conf->capability, v->value, 0);
}
}
#undef CONF_STRING
#undef CONF_INTEGER
#undef CONF_TRUE
return 0;
}
/*
* load the config
*/
static int capi_eval_config(struct ast_config *cfg)
{
struct cc_capi_conf conf;
struct ast_variable *v;
char *cat = NULL;
float rxgain = 1.0;
float txgain = 1.0;
/* prefix defaults */
cc_copy_string(capi_national_prefix, CAPI_NATIONAL_PREF, sizeof(capi_national_prefix));
cc_copy_string(capi_international_prefix, CAPI_INTERNAT_PREF, sizeof(capi_international_prefix));
#ifdef CC_AST_HAS_VERSION_1_4
/* Copy the default jb config over global_jbconf */
memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
#endif
/* read the general section */
for (v = ast_variable_browse(cfg, "general"); v; v = v->next) {
#ifdef CC_AST_HAS_VERSION_1_4
/* handle global jb conf */
if (!ast_jb_read_conf(&global_jbconf, v->name, v->value)) {
continue;
}
if (!strcasecmp(v->name, "mohinterpret")) {
cc_copy_string(global_mohinterpret, v->value, sizeof(global_mohinterpret));
} else
#endif
if (!strcasecmp(v->name, "nationalprefix")) {
cc_copy_string(capi_national_prefix, v->value, sizeof(capi_national_prefix));
} else if (!strcasecmp(v->name, "internationalprefix")) {
cc_copy_string(capi_international_prefix, v->value, sizeof(capi_international_prefix));
} else if (!strcasecmp(v->name, "language")) {
cc_copy_string(default_language, v->value, sizeof(default_language));
} else if (!strcasecmp(v->name, "rxgain")) {
if (sscanf(v->value,"%f",&rxgain) != 1) {
cc_log(LOG_ERROR,"invalid rxgain\n");
}
} else if (!strcasecmp(v->name, "txgain")) {
if (sscanf(v->value,"%f",&txgain) != 1) {
cc_log(LOG_ERROR,"invalid txgain\n");
}
} else if (!strcasecmp(v->name, "ulaw")) {
if (ast_true(v->value)) {
capi_capability = AST_FORMAT_ULAW;
}
}
}
/* go through all other sections, which are our interfaces */
for (cat = ast_category_browse(cfg, NULL); cat; cat = ast_category_browse(cfg, cat)) {
if (!strcasecmp(cat, "general"))
continue;
if (!strcasecmp(cat, "interfaces")) {
cc_log(LOG_WARNING, "Config file syntax has changed! Don't use 'interfaces'\n");
return -1;
}
cc_verbose(4, 0, VERBOSE_PREFIX_2 "Reading config for %s\n",
cat);
/* init the conf struct */
memset(&conf, 0, sizeof(conf));
conf.rxgain = rxgain;
conf.txgain = txgain;
conf.ecoption = EC_OPTION_DISABLE_G165;
conf.ectail = EC_DEFAULT_TAIL;
conf.ecSelector = FACILITYSELECTOR_ECHO_CANCEL;
cc_copy_string(conf.name, cat, sizeof(conf.name));
cc_copy_string(conf.language, default_language, sizeof(conf.language));
#ifdef CC_AST_HAS_VERSION_1_4
cc_copy_string(conf.mohinterpret, global_mohinterpret, sizeof(conf.mohinterpret));
/* Copy the global jb config into interface conf */
memcpy(&conf.jbconf, &global_jbconf, sizeof(struct ast_jb_conf));
#endif
if (conf_interface(&conf, ast_variable_browse(cfg, cat))) {
cc_log(LOG_ERROR, "Error interface config.\n");
return -1;
}
if (mkif(&conf)) {
cc_log(LOG_ERROR,"Error creating interface list\n");
return -1;
}
}
return 0;
}
#ifdef CC_AST_HAS_VERSION_1_4
static int reload(void)
{
cc_log(LOG_WARNING, "config reload is not supported yet.\n");
return 0;
}
#endif
/*
* unload the module
*/
#ifdef CC_AST_HAS_VERSION_1_4
static
#endif
int unload_module(void)
{
struct capi_pvt *i, *itmp;
int controller;
ast_unregister_application(commandapp);
ast_cli_unregister(&cli_info);
ast_cli_unregister(&cli_show_channels);
ast_cli_unregister(&cli_debug);
ast_cli_unregister(&cli_no_debug);
#ifdef CC_AST_HAS_VERSION_1_4
ast_module_user_hangup_all();
#endif
if (monitor_thread != (pthread_t)(0-1)) {
pthread_cancel(monitor_thread);
pthread_kill(monitor_thread, SIGURG);
pthread_join(monitor_thread, NULL);
}
cc_mutex_lock(&iflock);
if (capi_ApplID != CAPI_APPLID_UNUSED) {
if (capi20_release(capi_ApplID) != 0)
cc_log(LOG_WARNING,"Unable to unregister from CAPI!\n");
}
for (controller = 1; controller <= capi_num_controllers; controller++) {
if (capi_used_controllers & (1 << controller)) {
if (capi_controllers[controller])
free(capi_controllers[controller]);
}
}
i = iflist;
while (i) {
if (i->owner)
cc_log(LOG_WARNING, "On unload, interface still has owner.\n");
if (i->smoother)
ast_smoother_free(i->smoother);
cc_mutex_destroy(&i->lock);
ast_cond_destroy(&i->event_trigger);
itmp = i;
i = i->next;
free(itmp);
}
cc_mutex_unlock(&iflock);
ast_channel_unregister(&capi_tech);
return 0;
}
/*
* main: load the module
*/
#ifdef CC_AST_HAS_VERSION_1_4
static
#endif
int load_module(void)
{
struct ast_config *cfg;
char *config = "capi.conf";
int res = 0;
cfg = ast_config_load(config);
/* We *must* have a config file otherwise stop immediately, well no */
if (!cfg) {
cc_log(LOG_ERROR, "Unable to load config %s, CAPI disabled\n", config);
return 0;
}
if (cc_mutex_lock(&iflock)) {
cc_log(LOG_ERROR, "Unable to lock interface list???\n");
return -1;
}
if ((res = cc_init_capi()) != 0) {
cc_mutex_unlock(&iflock);
return(res);
}
res = capi_eval_config(cfg);
ast_config_destroy(cfg);
if (res != 0) {
cc_mutex_unlock(&iflock);
return(res);
}
if ((res = cc_post_init_capi()) != 0) {
cc_mutex_unlock(&iflock);
unload_module();
return(res);
}
cc_mutex_unlock(&iflock);
if (ast_channel_register(&capi_tech)) {
cc_log(LOG_ERROR, "Unable to register channel class %s\n", channeltype);
unload_module();
return -1;
}
ast_cli_register(&cli_info);
ast_cli_register(&cli_show_channels);
ast_cli_register(&cli_debug);
ast_cli_register(&cli_no_debug);
ast_register_application(commandapp, pbx_capicommand_exec, commandsynopsis, commandtdesc);
if (ast_pthread_create(&monitor_thread, NULL, capidev_loop, NULL) < 0) {
monitor_thread = (pthread_t)(0-1);
cc_log(LOG_ERROR, "Unable to start monitor thread!\n");
return -1;
}
return 0;
}
#ifdef CC_AST_HAS_VERSION_1_4
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, tdesc,
.load = load_module,
.unload = unload_module,
.reload = reload,
);
#else
int usecount()
{
int res;
cc_mutex_lock(&usecnt_lock);
res = usecnt;
cc_mutex_unlock(&usecnt_lock);
return res;
}
char *description()
{
return ccdesc;
}
#ifndef PBX_IS_OPBX
char *key()
{
return ASTERISK_GPL_KEY;
}
#endif
#endif /* CC_AST_HAS_VERSION_1_4 */
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