Asterisk
/
asterisk
mirror of https://github.com/asterisk/asterisk
1
0
Fork 0
Code Issues Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '2749721791'
${ noResults }
asterisk/channels/misdn/isdn_lib.c

4822 lines
109 KiB
Raw Blame History

/*
* Chan_Misdn -- Channel Driver for Asterisk
*
* Interface to mISDN
*
* Copyright (C) 2004, Christian Richter
*
* Christian Richter <crich@beronet.com>
*
* This program is free software, distributed under the terms of
* the GNU General Public License
*/
/*! \file
* \brief Interface to mISDN
* \author Christian Richter <crich@beronet.com>
*/
/*** MODULEINFO
<support_level>extended</support_level>
***/
#include <syslog.h>
#include <sys/time.h>
#include <mISDNuser/isdn_debug.h>
#include "isdn_lib_intern.h"
#include "isdn_lib.h"
enum event_response_e (*cb_event)(enum event_e event, struct misdn_bchannel *bc, void *user_data);
void (*cb_log)(int level, int port, char *tmpl, ...)
__attribute__ ((format (printf, 3, 4)));
int (*cb_jb_empty)(struct misdn_bchannel *bc, char *buffer, int len);
/*
* Define ARRAY_LEN() because I cannot
* #include "asterisk/utils.h"
*/
#define ARRAY_LEN(a) (sizeof(a) / sizeof(a[0]))
#include "asterisk/causes.h"
void misdn_join_conf(struct misdn_bchannel *bc, int conf_id);
void misdn_split_conf(struct misdn_bchannel *bc, int conf_id);
int misdn_lib_get_l2_up(struct misdn_stack *stack);
struct misdn_stack *get_misdn_stack(void);
int misdn_lib_port_is_pri(int port)
{
struct misdn_stack *stack=get_misdn_stack();
for ( ; stack; stack=stack->next) {
if (stack->port == port) {
return stack->pri;
}
}
return -1;
}
int misdn_lib_port_is_nt(int port)
{
struct misdn_stack *stack=get_misdn_stack();
for ( ; stack; stack=stack->next) {
if (stack->port == port) {
return stack->nt;
}
}
return -1;
}
void misdn_make_dummy(struct misdn_bchannel *dummybc, int port, int l3id, int nt, int channel)
{
memset (dummybc,0,sizeof(struct misdn_bchannel));
dummybc->port=port;
if (l3id==0)
dummybc->l3_id = MISDN_ID_DUMMY;
else
dummybc->l3_id=l3id;
dummybc->nt=nt;
dummybc->dummy=1;
dummybc->channel=channel;
}
int misdn_lib_port_block(int port)
{
struct misdn_stack *stack=get_misdn_stack();
for ( ; stack; stack=stack->next) {
if (stack->port == port) {
stack->blocked=1;
return 0;
}
}
return -1;
}
int misdn_lib_port_unblock(int port)
{
struct misdn_stack *stack=get_misdn_stack();
for ( ; stack; stack=stack->next) {
if (stack->port == port) {
stack->blocked=0;
return 0;
}
}
return -1;
}
int misdn_lib_is_port_blocked(int port)
{
struct misdn_stack *stack=get_misdn_stack();
for ( ; stack; stack=stack->next) {
if (stack->port == port) {
return stack->blocked;
}
}
return -1;
}
int misdn_lib_is_ptp(int port)
{
struct misdn_stack *stack=get_misdn_stack();
for ( ; stack; stack=stack->next) {
if (stack->port == port) return stack->ptp;
}
return -1;
}
int misdn_lib_get_maxchans(int port)
{
struct misdn_stack *stack=get_misdn_stack();
for ( ; stack; stack=stack->next) {
if (stack->port == port) {
if (stack->pri)
return 30;
else
return 2;
}
}
return -1;
}
struct misdn_stack *get_stack_by_bc(struct misdn_bchannel *bc)
{
struct misdn_stack *stack = get_misdn_stack();
if (!bc)
return NULL;
for ( ; stack; stack = stack->next) {
if (bc->port == stack->port)
return stack;
}
return NULL;
}
void get_show_stack_details(int port, char *buf)
{
struct misdn_stack *stack = get_misdn_stack();
for (; stack; stack = stack->next) {
if (stack->port == port) {
break;
}
}
if (stack) {
sprintf(buf, "* Port %2d Type %s Prot. %s L2Link %s L1Link:%s Blocked:%d",
stack->port,
stack->nt ? "NT" : "TE",
stack->ptp ? "PTP" : "PMP",
(stack->nt && !stack->ptp) ? "UNKN" : stack->l2link ? "UP " : "DOWN",
stack->l1link ? "UP " : "DOWN",
stack->blocked);
} else {
buf[0] = 0;
}
}
static int nt_err_cnt =0 ;
enum global_states {
MISDN_INITIALIZING,
MISDN_INITIALIZED
} ;
static enum global_states global_state=MISDN_INITIALIZING;
#include <mISDNuser/net_l2.h>
#include <mISDNuser/tone.h>
#include <unistd.h>
#include <semaphore.h>
#include <pthread.h>
#include <signal.h>
#include "isdn_lib.h"
struct misdn_lib {
/*! \brief mISDN device handle returned by mISDN_open() */
int midev;
pthread_t event_thread;
pthread_t event_handler_thread;
void *user_data;
msg_queue_t activatequeue;
sem_t new_msg;
struct misdn_stack *stack_list;
} ;
#ifndef ECHOCAN_ON
#define ECHOCAN_ON 123
#define ECHOCAN_OFF 124
#endif
#define MISDN_DEBUG 0
void misdn_tx_jitter(struct misdn_bchannel *bc, int len);
struct misdn_bchannel *find_bc_by_l3id(struct misdn_stack *stack, unsigned long l3id);
int manager_isdn_handler(iframe_t *frm ,msg_t *msg);
int misdn_lib_port_restart(int port);
int misdn_lib_pid_restart(int pid);
extern struct isdn_msg msgs_g[];
#define ISDN_PID_L3_B_USER 0x430000ff
#define ISDN_PID_L4_B_USER 0x440000ff
/* #define MISDN_IBUF_SIZE 1024 */
#define MISDN_IBUF_SIZE 512
/* Fine Tuning of Inband Signalling time */
#define TONE_ALERT_CNT 41 /* 1 Sec */
#define TONE_ALERT_SILENCE_CNT 200 /* 4 Sec */
#define TONE_BUSY_CNT 20 /* ? */
#define TONE_BUSY_SILENCE_CNT 48 /* ? */
static int entity;
static struct misdn_lib *glob_mgr;
static char tone_425_flip[TONE_425_SIZE];
static char tone_silence_flip[TONE_SILENCE_SIZE];
static void misdn_lib_isdn_event_catcher(void *arg);
static int handle_event_nt(void *dat, void *arg);
void stack_holder_add(struct misdn_stack *stack, struct misdn_bchannel *holder);
void stack_holder_remove(struct misdn_stack *stack, struct misdn_bchannel *holder);
struct misdn_bchannel *stack_holder_find(struct misdn_stack *stack, unsigned long l3id);
/* from isdn_lib.h */
/* user iface */
void te_lib_destroy(int midev) ;
struct misdn_bchannel *manager_find_bc_by_pid(int pid);
void manager_ph_control_block(struct misdn_bchannel *bc, int c1, void *c2, int c2_len);
void manager_clean_bc(struct misdn_bchannel *bc );
void manager_bchannel_setup (struct misdn_bchannel *bc);
void manager_bchannel_cleanup (struct misdn_bchannel *bc);
void ec_chunk( struct misdn_bchannel *bc, unsigned char *rxchunk, unsigned char *txchunk, int chunk_size);
/* end */
int bchdev_echocancel_activate(struct misdn_bchannel* dev);
void bchdev_echocancel_deactivate(struct misdn_bchannel* dev);
/* end */
static char *bearer2str(int cap) {
static char *bearers[]={
"Speech",
"Audio 3.1k",
"Unres Digital",
"Res Digital",
"Unknown Bearer"
};
switch (cap) {
case INFO_CAPABILITY_SPEECH:
return bearers[0];
break;
case INFO_CAPABILITY_AUDIO_3_1K:
return bearers[1];
break;
case INFO_CAPABILITY_DIGITAL_UNRESTRICTED:
return bearers[2];
break;
case INFO_CAPABILITY_DIGITAL_RESTRICTED:
return bearers[3];
break;
default:
return bearers[4];
break;
}
}
static char flip_table[256];
static void init_flip_bits(void)
{
int i,k;
for (i = 0 ; i < 256 ; i++) {
unsigned char sample = 0 ;
for (k = 0; k<8; k++) {
if ( i & 1 << k ) sample |= 0x80 >> k;
}
flip_table[i] = sample;
}
}
static char * flip_buf_bits ( char * buf , int len)
{
int i;
char * start = buf;
for (i = 0 ; i < len; i++) {
buf[i] = flip_table[(unsigned char)buf[i]];
}
return start;
}
static msg_t *create_l2msg(int prim, int dinfo, int size) /* NT only */
{
int i = 0;
msg_t *dmsg;
while(i < 10)
{
dmsg = prep_l3data_msg(prim, dinfo, size, 256, NULL);
if (dmsg)
return(dmsg);
if (!i)
printf("cannot allocate memory, trying again...\n");
i++;
usleep(300000);
}
printf("cannot allocate memory, system overloaded.\n");
exit(-1);
}
msg_t *create_l3msg(int prim, int mt, int dinfo, int size, int ntmode)
{
int i = 0;
msg_t *dmsg;
Q931_info_t *qi;
iframe_t *frm;
if (!ntmode)
size = sizeof(Q931_info_t)+2;
while(i < 10) {
if (ntmode) {
dmsg = prep_l3data_msg(prim, dinfo, size, 256, NULL);
if (dmsg) {
return(dmsg);
}
} else {
dmsg = alloc_msg(size+256+mISDN_HEADER_LEN+DEFAULT_HEADROOM);
if (dmsg)
{
memset(msg_put(dmsg,size+mISDN_HEADER_LEN), 0, size+mISDN_HEADER_LEN);
frm = (iframe_t *)dmsg->data;
frm->prim = prim;
frm->dinfo = dinfo;
qi = (Q931_info_t *)(dmsg->data + mISDN_HEADER_LEN);
qi->type = mt;
return(dmsg);
}
}
if (!i) printf("cannot allocate memory, trying again...\n");
i++;
usleep(300000);
}
printf("cannot allocate memory, system overloaded.\n");
exit(-1);
}
static int send_msg (int midev, struct misdn_bchannel *bc, msg_t *dmsg)
{
iframe_t *frm = (iframe_t *)dmsg->data;
struct misdn_stack *stack=get_stack_by_bc(bc);
if (!stack) {
cb_log(0,bc->port,"send_msg: IEK!! no stack\n ");
return -1;
}
frm->addr = (stack->upper_id | FLG_MSG_DOWN);
frm->dinfo = bc->l3_id;
frm->len = (dmsg->len) - mISDN_HEADER_LEN;
cb_log(4,stack->port,"Sending msg, prim:%x addr:%x dinfo:%x\n",frm->prim,frm->addr,frm->dinfo);
mISDN_write(midev, dmsg->data, dmsg->len, TIMEOUT_1SEC);
free_msg(dmsg);
return 0;
}
static int mypid=1;
int misdn_cap_is_speech(int cap)
/** Poor mans version **/
{
if ( (cap != INFO_CAPABILITY_DIGITAL_UNRESTRICTED) &&
(cap != INFO_CAPABILITY_DIGITAL_RESTRICTED) ) return 1;
return 0;
}
int misdn_inband_avail(struct misdn_bchannel *bc)
{
if (!bc->early_bconnect) {
/* We have opted to never receive any available inband recorded messages */
return 0;
}
switch (bc->progress_indicator) {
case INFO_PI_INBAND_AVAILABLE:
case INFO_PI_CALL_NOT_E2E_ISDN:
case INFO_PI_CALLED_NOT_ISDN:
return 1;
default:
return 0;
}
return 0;
}
static void dump_chan_list(struct misdn_stack *stack)
{
int i;
for (i = 0; i <= stack->b_num; ++i) {
cb_log(6, stack->port, "Idx:%d stack->cchan:%d in_use:%d Chan:%d\n",
i, stack->channels[i], stack->bc[i].in_use, i + 1);
}
#if defined(AST_MISDN_ENHANCEMENTS)
for (i = MAX_BCHANS + 1; i < ARRAY_LEN(stack->bc); ++i) {
if (stack->bc[i].in_use) {
cb_log(6, stack->port, "Idx:%d stack->cchan:%d REGISTER Chan:%d in_use\n",
i, stack->channels[i], i + 1);
}
}
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
}
void misdn_dump_chanlist(void)
{
struct misdn_stack *stack=get_misdn_stack();
for ( ; stack; stack=stack->next) {
dump_chan_list(stack);
}
}
static int set_chan_in_stack(struct misdn_stack *stack, int channel)
{
cb_log(4,stack->port,"set_chan_in_stack: %d\n",channel);
dump_chan_list(stack);
if (1 <= channel && channel <= ARRAY_LEN(stack->channels)) {
if (!stack->channels[channel-1])
stack->channels[channel-1] = 1;
else {
cb_log(4,stack->port,"channel already in use:%d\n", channel );
return -1;
}
} else {
cb_log(0,stack->port,"couldn't set channel %d in\n", channel );
return -1;
}
return 0;
}
static int find_free_chan_in_stack(struct misdn_stack *stack, struct misdn_bchannel *bc, int channel, int dec)
{
int i;
int chan = 0;
int bnums;
if (bc->channel_found) {
return 0;
}
bc->channel_found = 1;
#if defined(AST_MISDN_ENHANCEMENTS)
if (bc->is_register_pool) {
pthread_mutex_lock(&stack->st_lock);
for (i = MAX_BCHANS + 1; i < ARRAY_LEN(stack->channels); ++i) {
if (!stack->channels[i]) {
chan = i + 1;
cb_log(3, stack->port, " --> found REGISTER chan: %d\n", chan);
break;
}
}
} else
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
{
cb_log(5, stack->port, "find_free_chan: req_chan:%d\n", channel);
if (channel < 0 || channel > MAX_BCHANS) {
cb_log(0, stack->port, " !! out of bound call to find_free_chan_in_stack! (ch:%d)\n", channel);
return 0;
}
--channel;
pthread_mutex_lock(&stack->st_lock);
bnums = stack->pri ? stack->b_num : stack->b_num - 1;
if (dec) {
for (i = bnums; i >= 0; --i) {
if (i != 15 && (channel < 0 || i == channel)) { /* skip E1 D channel ;) and work with chan preselection */
if (!stack->channels[i]) {
chan = i + 1;
cb_log(3, stack->port, " --> found chan%s: %d\n", channel >= 0 ? " (preselected)" : "", chan);
break;
}
}
}
} else {
for (i = 0; i <= bnums; ++i) {
if (i != 15 && (channel < 0 || i == channel)) { /* skip E1 D channel ;) and work with chan preselection */
if (!stack->channels[i]) {
chan = i + 1;
cb_log(3, stack->port, " --> found chan%s: %d\n", channel >= 0 ? " (preselected)" : "", chan);
break;
}
}
}
}
}
if (!chan) {
pthread_mutex_unlock(&stack->st_lock);
cb_log(1, stack->port, " !! NO FREE CHAN IN STACK\n");
dump_chan_list(stack);
bc->out_cause = AST_CAUSE_NORMAL_CIRCUIT_CONGESTION;
return -1;
}
if (set_chan_in_stack(stack, chan) < 0) {
pthread_mutex_unlock(&stack->st_lock);
cb_log(0, stack->port, "Channel Already in use:%d\n", chan);
bc->out_cause = AST_CAUSE_REQUESTED_CHAN_UNAVAIL;
return -1;
}
pthread_mutex_unlock(&stack->st_lock);
bc->channel = chan;
return 0;
}
/*!
* \internal
* \brief Release a B channel to the allocation pool.
*
* \param stack Which port stack B channel belongs.
* \param channel B channel to release. (Range 1-MAX_BCHANS representing B1-Bn)
*
* \return Nothing
*
* \note
* Must be called after clean_up_bc() to make sure that the media stream is
* no longer connected.
*/
static void empty_chan_in_stack(struct misdn_stack *stack, int channel)
{
if (channel < 1 || ARRAY_LEN(stack->channels) < channel) {
cb_log(0, stack->port, "empty_chan_in_stack: cannot empty channel %d\n", channel);
return;
}
cb_log(4, stack->port, "empty_chan_in_stack: %d\n", channel);
stack->channels[channel - 1] = 0;
dump_chan_list(stack);
}
char *bc_state2str(enum bchannel_state state) {
int i;
struct bchan_state_s {
char *n;
enum bchannel_state s;
} states[] = {
{"BCHAN_CLEANED", BCHAN_CLEANED },
{"BCHAN_EMPTY", BCHAN_EMPTY},
{"BCHAN_ACTIVATED", BCHAN_ACTIVATED},
{"BCHAN_BRIDGED", BCHAN_BRIDGED},
{"BCHAN_RELEASE", BCHAN_RELEASE},
{"BCHAN_ERROR", BCHAN_ERROR}
};
for (i=0; i< sizeof(states)/sizeof(struct bchan_state_s); i++)
if ( states[i].s == state)
return states[i].n;
return "UNKNOWN";
}
void bc_state_change(struct misdn_bchannel *bc, enum bchannel_state state)
{
cb_log(5,bc->port,"BC_STATE_CHANGE: l3id:%x from:%s to:%s\n",
bc->l3_id,
bc_state2str(bc->bc_state),
bc_state2str(state) );
switch (state) {
case BCHAN_ACTIVATED:
if (bc->next_bc_state == BCHAN_BRIDGED) {
misdn_join_conf(bc, bc->conf_id);
bc->next_bc_state = BCHAN_EMPTY;
return;
}
default:
bc->bc_state=state;
break;
}
}
static void bc_next_state_change(struct misdn_bchannel *bc, enum bchannel_state state)
{
cb_log(5,bc->port,"BC_NEXT_STATE_CHANGE: from:%s to:%s\n",
bc_state2str(bc->next_bc_state),
bc_state2str(state) );
bc->next_bc_state=state;
}
/*!
* \internal
* \brief Empty the B channel record of most call data.
*
* \param bc B channel record to empty of most call data.
*
* \return Nothing
*
* \note
* Sets the last_used time and must be called before clearing bc->in_use.
*/
static void empty_bc(struct misdn_bchannel *bc)
{
bc->caller.presentation = 0; /* allowed */
bc->caller.number_plan = NUMPLAN_ISDN;
bc->caller.number_type = NUMTYPE_UNKNOWN;
bc->caller.name[0] = 0;
bc->caller.number[0] = 0;
bc->caller.subaddress[0] = 0;
bc->connected.presentation = 0; /* allowed */
bc->connected.number_plan = NUMPLAN_ISDN;
bc->connected.number_type = NUMTYPE_UNKNOWN;
bc->connected.name[0] = 0;
bc->connected.number[0] = 0;
bc->connected.subaddress[0] = 0;
bc->redirecting.from.presentation = 0; /* allowed */
bc->redirecting.from.number_plan = NUMPLAN_ISDN;
bc->redirecting.from.number_type = NUMTYPE_UNKNOWN;
bc->redirecting.from.name[0] = 0;
bc->redirecting.from.number[0] = 0;
bc->redirecting.from.subaddress[0] = 0;
bc->redirecting.to.presentation = 0; /* allowed */
bc->redirecting.to.number_plan = NUMPLAN_ISDN;
bc->redirecting.to.number_type = NUMTYPE_UNKNOWN;
bc->redirecting.to.name[0] = 0;
bc->redirecting.to.number[0] = 0;
bc->redirecting.to.subaddress[0] = 0;
bc->redirecting.reason = mISDN_REDIRECTING_REASON_UNKNOWN;
bc->redirecting.count = 0;
bc->redirecting.to_changed = 0;
bc->dummy=0;
bc->bframe_len=0;
bc->cw= 0;
bc->dec=0;
bc->channel = 0;
bc->sending_complete = 0;
bc->restart_channel=0;
bc->conf_id = 0;
bc->need_more_infos = 0;
bc->send_dtmf=0;
bc->nodsp=0;
bc->nojitter=0;
bc->time_usec=0;
bc->rxgain=0;
bc->txgain=0;
bc->crypt=0;
bc->curptx=0; bc->curprx=0;
bc->crypt_key[0] = 0;
bc->generate_tone=0;
bc->tone_cnt=0;
bc->active = 0;
bc->early_bconnect = 1;
#ifdef MISDN_1_2
*bc->pipeline = 0;
#else
bc->ec_enable = 0;
bc->ec_deftaps = 128;
#endif
bc->AOCD_need_export = 0;
bc->orig=0;
bc->cause = AST_CAUSE_NORMAL_CLEARING;
bc->out_cause = AST_CAUSE_NORMAL_CLEARING;
bc->display_connected = 0; /* none */
bc->display_setup = 0; /* none */
bc->outgoing_colp = 0;/* pass */
bc->presentation = 0; /* allowed */
bc->set_presentation = 0;
bc->notify_description_code = mISDN_NOTIFY_CODE_INVALID;
bc->progress_coding=0;
bc->progress_location=0;
bc->progress_indicator=0;
#if defined(AST_MISDN_ENHANCEMENTS)
bc->div_leg_3_rx_wanted = 0;
bc->div_leg_3_tx_pending = 0;
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
/** Set Default Bearer Caps **/
bc->capability=INFO_CAPABILITY_SPEECH;
bc->law=INFO_CODEC_ALAW;
bc->mode=0;
bc->rate=0x10;
bc->user1=0;
bc->urate=0;
bc->hdlc=0;
bc->dialed.number_plan = NUMPLAN_ISDN;
bc->dialed.number_type = NUMTYPE_UNKNOWN;
bc->dialed.number[0] = 0;
bc->dialed.subaddress[0] = 0;
bc->info_dad[0] = 0;
bc->display[0] = 0;
bc->infos_pending[0] = 0;
bc->uu[0]=0;
bc->uulen=0;
bc->fac_in.Function = Fac_None;
bc->fac_out.Function = Fac_None;
bc->te_choose_channel = 0;
bc->channel_found= 0;
gettimeofday(&bc->last_used, NULL);
}
static int clean_up_bc(struct misdn_bchannel *bc)
{
int ret=0;
unsigned char buff[32];
struct misdn_stack * stack;
cb_log(3, bc->port, "$$$ CLEANUP CALLED pid:%d\n", bc->pid);
stack=get_stack_by_bc(bc);
if (!stack) return -1;
switch (bc->bc_state ) {
case BCHAN_CLEANED:
cb_log(5, stack->port, "$$$ Already cleaned up bc with stid :%x\n", bc->b_stid);
return -1;
default:
break;
}
cb_log(2, stack->port, "$$$ Cleaning up bc with stid :%x pid:%d\n", bc->b_stid, bc->pid);
manager_ec_disable(bc);
manager_bchannel_deactivate(bc);
mISDN_write_frame(stack->midev, buff, bc->layer_id|FLG_MSG_TARGET|FLG_MSG_DOWN, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
bc->b_stid = 0;
bc_state_change(bc, BCHAN_CLEANED);
return ret;
}
static void clear_l3(struct misdn_stack *stack)
{
int i;
if (global_state == MISDN_INITIALIZED) {
for (i = 0; i <= stack->b_num; ++i) {
cb_event(EVENT_CLEANUP, &stack->bc[i], NULL);
empty_bc(&stack->bc[i]);
clean_up_bc(&stack->bc[i]);
empty_chan_in_stack(stack, i + 1);
stack->bc[i].in_use = 0;
}
#if defined(AST_MISDN_ENHANCEMENTS)
for (i = MAX_BCHANS + 1; i < ARRAY_LEN(stack->bc); ++i) {
empty_bc(&stack->bc[i]);
empty_chan_in_stack(stack, i + 1);
stack->bc[i].in_use = 0;
}
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
}
}
static int new_te_id = 0;
static int misdn_lib_get_l1_down(struct misdn_stack *stack)
{
/* Pull Up L1 */
iframe_t act;
act.prim = PH_DEACTIVATE | REQUEST;
act.addr = stack->upper_id | FLG_MSG_DOWN;
act.dinfo = 0;
act.len = 0;
cb_log(1, stack->port, "SENDING PH_DEACTIVATE | REQ\n");
return mISDN_write(stack->midev, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
}
static int misdn_lib_get_l2_down(struct misdn_stack *stack)
{
if (stack->ptp && stack->nt) {
msg_t *dmsg;
/* L2 */
dmsg = create_l2msg(DL_RELEASE| REQUEST, 0, 0);
pthread_mutex_lock(&stack->nstlock);
if (stack->nst.manager_l3(&stack->nst, dmsg))
free_msg(dmsg);
pthread_mutex_unlock(&stack->nstlock);
} else if (!stack->nt) {
iframe_t act;
act.prim = DL_RELEASE| REQUEST;
act.addr = (stack->upper_id |FLG_MSG_DOWN) ;
act.dinfo = 0;
act.len = 0;
return mISDN_write(stack->midev, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
}
/* cannot deestablish L2 for NT PTMP to unknown TE TEIs */
return 0;
}
static int misdn_lib_get_l1_up(struct misdn_stack *stack)
{
/* Pull Up L1 */
iframe_t act;
act.prim = PH_ACTIVATE | REQUEST;
act.addr = stack->upper_id | FLG_MSG_DOWN;
act.dinfo = 0;
act.len = 0;
cb_log(1, stack->port, "SENDING PH_ACTIVATE | REQ\n");
return mISDN_write(stack->midev, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
}
int misdn_lib_get_l2_up(struct misdn_stack *stack)
{
if (stack->ptp && stack->nt) {
msg_t *dmsg;
/* L2 */
dmsg = create_l2msg(DL_ESTABLISH | REQUEST, 0, 0);
pthread_mutex_lock(&stack->nstlock);
if (stack->nst.manager_l3(&stack->nst, dmsg))
free_msg(dmsg);
pthread_mutex_unlock(&stack->nstlock);
} else if (!stack->nt) {
iframe_t act;
act.prim = DL_ESTABLISH | REQUEST;
act.addr = (stack->upper_id |FLG_MSG_DOWN) ;
act.dinfo = 0;
act.len = 0;
return mISDN_write(stack->midev, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
}
/* cannot establish L2 for NT PTMP to unknown TE TEIs */
return 0;
}
static int misdn_lib_get_short_status(struct misdn_stack *stack)
{
iframe_t act;
act.prim = MGR_SHORTSTATUS | REQUEST;
act.addr = (stack->upper_id | MSG_BROADCAST) ;
act.dinfo = SSTATUS_BROADCAST_BIT | SSTATUS_ALL;
act.len = 0;
return mISDN_write(stack->midev, &act, mISDN_HEADER_LEN+act.len, TIMEOUT_1SEC);
}
static int create_process(int midev, struct misdn_bchannel *bc)
{
iframe_t ncr;
int l3_id;
int proc_id;
struct misdn_stack *stack;
stack = get_stack_by_bc(bc);
if (stack->nt) {
if (find_free_chan_in_stack(stack, bc, bc->channel_preselected ? bc->channel : 0, 0) < 0) {
return -1;
}
cb_log(4, stack->port, " --> found channel: %d\n", bc->channel);
for (proc_id = 0; proc_id < MAXPROCS; ++proc_id) {
if (stack->procids[proc_id] == 0) {
break;
}
}
if (proc_id == MAXPROCS) {
cb_log(0, stack->port, "Couldn't Create New ProcId.\n");
return -1;
}
stack->procids[proc_id] = 1;
l3_id = 0xff00 | proc_id;
bc->l3_id = l3_id;
cb_log(3, stack->port, " --> new_l3id %x\n", l3_id);
} else {
if ((stack->pri && stack->ptp) || bc->te_choose_channel) {
/* we know exactly which channels are in use */
if (find_free_chan_in_stack(stack, bc, bc->channel_preselected ? bc->channel : 0, bc->dec) < 0) {
return -1;
}
cb_log(2, stack->port, " --> found channel: %d\n", bc->channel);
} else {
/* other phones could have made a call also on this port (ptmp) */
bc->channel = 0xff;
}
/* if we are in te-mode, we need to create a process first */
if (++new_te_id > 0xffff) {
new_te_id = 0x0001;
}
l3_id = (entity << 16) | new_te_id;
bc->l3_id = l3_id;
cb_log(3, stack->port, "--> new_l3id %x\n", l3_id);
/* send message */
ncr.prim = CC_NEW_CR | REQUEST;
ncr.addr = (stack->upper_id | FLG_MSG_DOWN);
ncr.dinfo = l3_id;
ncr.len = 0;
mISDN_write(midev, &ncr, mISDN_HEADER_LEN + ncr.len, TIMEOUT_1SEC);
}
return l3_id;
}
static int setup_bc(struct misdn_bchannel *bc)
{
unsigned char buff[1025];
int midev;
int channel;
int b_stid;
int i;
mISDN_pid_t pid;
int ret;
struct misdn_stack *stack=get_stack_by_bc(bc);
if (!stack) {
cb_log(0, bc->port, "setup_bc: NO STACK FOUND!!\n");
return -1;
}
midev = stack->midev;
channel = bc->channel - 1 - (bc->channel > 16);
b_stid = stack->b_stids[channel >= 0 ? channel : 0];
switch (bc->bc_state) {
case BCHAN_CLEANED:
break;
default:
cb_log(4, stack->port, "$$$ bc already setup stid :%x (state:%s)\n", b_stid, bc_state2str(bc->bc_state) );
return -1;
}
cb_log(5, stack->port, "$$$ Setting up bc with stid :%x\n", b_stid);
/*check if the b_stid is already initialized*/
for (i=0; i <= stack->b_num; i++) {
if (stack->bc[i].b_stid == b_stid) {
cb_log(0, bc->port, "setup_bc: b_stid:%x already in use !!!\n", b_stid);
return -1;
}
}
if (b_stid <= 0) {
cb_log(0, stack->port," -- Stid <=0 at the moment in channel:%d\n",channel);
bc_state_change(bc,BCHAN_ERROR);
return 1;
}
bc->b_stid = b_stid;
{
layer_info_t li;
memset(&li, 0, sizeof(li));
li.object_id = -1;
li.extentions = 0;
li.st = bc->b_stid; /* given idx */
#define MISDN_DSP
#ifndef MISDN_DSP
bc->nodsp=1;
#endif
if ( bc->hdlc || bc->nodsp) {
cb_log(4, stack->port,"setup_bc: without dsp\n");
{
int l = sizeof(li.name);
strncpy(li.name, "B L3", l);
li.name[l-1] = 0;
}
li.pid.layermask = ISDN_LAYER((3));
li.pid.protocol[3] = ISDN_PID_L3_B_USER;
bc->layer=3;
} else {
cb_log(4, stack->port,"setup_bc: with dsp\n");
{
int l = sizeof(li.name);
strncpy(li.name, "B L4", l);
li.name[l-1] = 0;
}
li.pid.layermask = ISDN_LAYER((4));
li.pid.protocol[4] = ISDN_PID_L4_B_USER;
bc->layer=4;
}
ret = mISDN_new_layer(midev, &li);
if (ret ) {
cb_log(0, stack->port,"New Layer Err: %d %s\n",ret,strerror(errno));
bc_state_change(bc,BCHAN_ERROR);
return(-EINVAL);
}
bc->layer_id = li.id;
}
memset(&pid, 0, sizeof(pid));
cb_log(4, stack->port," --> Channel is %d\n", bc->channel);
if (bc->nodsp && !bc->hdlc) {
cb_log(2, stack->port," --> TRANSPARENT Mode (no DSP, no HDLC)\n");
pid.protocol[1] = ISDN_PID_L1_B_64TRANS;
pid.protocol[2] = ISDN_PID_L2_B_TRANS;
pid.protocol[3] = ISDN_PID_L3_B_USER;
pid.layermask = ISDN_LAYER((1)) | ISDN_LAYER((2)) | ISDN_LAYER((3));
} else if ( bc->hdlc ) {
cb_log(2, stack->port," --> HDLC Mode\n");
pid.protocol[1] = ISDN_PID_L1_B_64HDLC ;
pid.protocol[2] = ISDN_PID_L2_B_TRANS ;
pid.protocol[3] = ISDN_PID_L3_B_USER;
pid.layermask = ISDN_LAYER((1)) | ISDN_LAYER((2)) | ISDN_LAYER((3)) ;
} else {
cb_log(2, stack->port," --> TRANSPARENT Mode\n");
pid.protocol[1] = ISDN_PID_L1_B_64TRANS;
pid.protocol[2] = ISDN_PID_L2_B_TRANS;
pid.protocol[3] = ISDN_PID_L3_B_DSP;
pid.protocol[4] = ISDN_PID_L4_B_USER;
pid.layermask = ISDN_LAYER((1)) | ISDN_LAYER((2)) | ISDN_LAYER((3)) | ISDN_LAYER((4));
}
ret = mISDN_set_stack(midev, bc->b_stid, &pid);
if (ret){
cb_log(0, stack->port,"$$$ Set Stack Err: %d %s\n",ret,strerror(errno));
mISDN_write_frame(midev, buff, bc->layer_id, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
bc_state_change(bc,BCHAN_ERROR);
cb_event(EVENT_BCHAN_ERROR, bc, glob_mgr->user_data);
return(-EINVAL);
}
ret = mISDN_get_setstack_ind(midev, bc->layer_id);
if (ret) {
cb_log(0, stack->port,"$$$ Set StackIND Err: %d %s\n",ret,strerror(errno));
mISDN_write_frame(midev, buff, bc->layer_id, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
bc_state_change(bc,BCHAN_ERROR);
cb_event(EVENT_BCHAN_ERROR, bc, glob_mgr->user_data);
return(-EINVAL);
}
ret = mISDN_get_layerid(midev, bc->b_stid, bc->layer) ;
bc->addr = ret>0? ret : 0;
if (!bc->addr) {
cb_log(0, stack->port,"$$$ Get Layerid Err: %d %s\n",ret,strerror(errno));
mISDN_write_frame(midev, buff, bc->layer_id, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
bc_state_change(bc,BCHAN_ERROR);
cb_event(EVENT_BCHAN_ERROR, bc, glob_mgr->user_data);
return (-EINVAL);
}
manager_bchannel_activate(bc);
bc_state_change(bc,BCHAN_ACTIVATED);
return 0;
}
/** IFACE **/
static int init_bc(struct misdn_stack *stack, struct misdn_bchannel *bc, int midev, int port, int bidx)
{
if (!bc) {
return -1;
}
cb_log(8, port, "Init.BC %d.\n",bidx);
bc->send_lock = malloc(sizeof(struct send_lock)); /* XXX BUG! memory leak never freed */
if (!bc->send_lock) {
return -1;
}
pthread_mutex_init(&bc->send_lock->lock, NULL);
empty_bc(bc);
bc->port=stack->port;
bc_state_change(bc, BCHAN_CLEANED);
bc->nt=stack->nt?1:0;
bc->pri=stack->pri;
{
ibuffer_t* ibuf= init_ibuffer(MISDN_IBUF_SIZE);
if (!ibuf) return -1;
clear_ibuffer( ibuf);
ibuf->rsem=malloc(sizeof(sem_t));
if (!ibuf->rsem) {
return -1;
}
bc->astbuf=ibuf;
if (sem_init(ibuf->rsem,1,0)<0)
sem_init(ibuf->rsem,0,0);
}
#if 0 /* This code does not seem to do anything useful */
if (bidx <= stack->b_num) {
unsigned char buff[1025];
iframe_t *frm = (iframe_t *) buff;
stack_info_t *stinf;
int ret;
ret = mISDN_get_stack_info(midev, stack->port, buff, sizeof(buff));
if (ret < 0) {
cb_log(0, port, "%s: Cannot get stack info for this port. (ret=%d)\n", __FUNCTION__, ret);
return -1;
}
stinf = (stack_info_t *)&frm->data.p;
cb_log(8, port, " --> Child %x\n",stinf->child[bidx]);
}
#endif
return 0;
}
static struct misdn_stack *stack_init(int midev, int port, int ptp)
{
int ret;
unsigned char buff[1025];
iframe_t *frm = (iframe_t *)buff;
stack_info_t *stinf;
struct misdn_stack *stack;
int i;
layer_info_t li;
stack = calloc(1, sizeof(struct misdn_stack));
if (!stack) {
return NULL;
}
cb_log(8, port, "Init. Stack.\n");
stack->port=port;
stack->midev=midev;
stack->ptp=ptp;
stack->holding=NULL;
stack->pri=0;
msg_queue_init(&stack->downqueue);
pthread_mutex_init(&stack->st_lock, NULL);
/* query port's requirements */
ret = mISDN_get_stack_info(midev, port, buff, sizeof(buff));
if (ret < 0) {
cb_log(0, port, "%s: Cannot get stack info for this port. (ret=%d)\n", __FUNCTION__, ret);
free(stack);
return(NULL);
}
stinf = (stack_info_t *)&frm->data.p;
stack->d_stid = stinf->id;
stack->b_num = stinf->childcnt;
for (i=0; i<=stinf->childcnt; i++)
stack->b_stids[i] = stinf->child[i];
switch(stinf->pid.protocol[0] & ~ISDN_PID_FEATURE_MASK) {
case ISDN_PID_L0_TE_S0:
cb_log(8, port, "TE Stack\n");
stack->nt=0;
break;
case ISDN_PID_L0_NT_S0:
cb_log(8, port, "NT Stack\n");
stack->nt=1;
break;
case ISDN_PID_L0_TE_E1:
cb_log(8, port, "TE S2M Stack\n");
stack->nt=0;
stack->pri=1;
break;
case ISDN_PID_L0_NT_E1:
cb_log(8, port, "NT S2M Stack\n");
stack->nt=1;
stack->pri=1;
break;
default:
cb_log(0, port, "this is a unknown port type 0x%08x\n", stinf->pid.protocol[0]);
}
if (!stack->nt) {
if (stinf->pid.protocol[2] & ISDN_PID_L2_DF_PTP ) {
stack->ptp = 1;
} else {
stack->ptp = 0;
}
}
{
int ret;
int nt=stack->nt;
memset(&li, 0, sizeof(li));
{
int l = sizeof(li.name);
strncpy(li.name,nt?"net l2":"user l4", l);
li.name[l-1] = 0;
}
li.object_id = -1;
li.extentions = 0;
li.pid.protocol[nt?2:4] = nt?ISDN_PID_L2_LAPD_NET:ISDN_PID_L4_CAPI20;
li.pid.layermask = ISDN_LAYER((nt?2:4));
li.st = stack->d_stid;
ret = mISDN_new_layer(midev, &li);
if (ret) {
cb_log(0, port, "%s: Cannot add layer %d to this port.\n", __FUNCTION__, nt?2:4);
free(stack);
return(NULL);
}
ret = mISDN_register_layer(midev, stack->d_stid, li.id);
if (ret)
{
cb_log(0,port,"Cannot register layer %d of this port.\n", nt?2:4);
free(stack);
return(NULL);
}
stack->lower_id = mISDN_get_layerid(midev, stack->d_stid, nt?1:3);
if (stack->lower_id < 0) {
cb_log(0, port, "%s: Cannot get layer(%d) id of this port.\n", __FUNCTION__, nt?1:3);
free(stack);
return(NULL);
}
stack->upper_id = mISDN_get_layerid(midev, stack->d_stid, nt?2:4);
if (stack->upper_id < 0) {
cb_log(0, port, "%s: Cannot get layer(%d) id of this port.\n", __FUNCTION__, nt?2:4);
free(stack);
return(NULL);
}
/* create nst (nt-mode only) */
if (nt) {
memset(&stack->nst, 0, sizeof(net_stack_t));
memset(&stack->mgr, 0, sizeof(manager_t));
stack->mgr.nst = &stack->nst;
stack->nst.manager = &stack->mgr;
stack->nst.l3_manager = handle_event_nt;
stack->nst.device = midev;
stack->nst.cardnr = port;
stack->nst.d_stid = stack->d_stid;
stack->nst.feature = FEATURE_NET_HOLD;
if (stack->ptp)
stack->nst.feature |= FEATURE_NET_PTP;
if (stack->pri)
stack->nst.feature |= FEATURE_NET_CRLEN2 | FEATURE_NET_EXTCID;
stack->nst.l1_id = stack->lower_id; /* never used */
stack->nst.l2_id = stack->upper_id;
msg_queue_init(&stack->nst.down_queue);
pthread_mutex_init(&stack->nstlock, NULL);
Isdnl2Init(&stack->nst);
Isdnl3Init(&stack->nst);
}
stack->l1link=0;
stack->l2link=0;
#if 0
if (!stack->nt) {
misdn_lib_get_short_status(stack);
} else {
misdn_lib_get_l1_up(stack);
if (!stack->ptp) misdn_lib_get_l1_up(stack);
misdn_lib_get_l2_up(stack);
}
#endif
misdn_lib_get_short_status(stack);
misdn_lib_get_l1_up(stack);
/* handle_l1 will start L2 for NT. */
if (!stack->nt) {
misdn_lib_get_l2_up(stack);
}
}
cb_log(8, port, "stack_init: lowerId:%x upperId:%x\n", stack->lower_id, stack->upper_id);
return stack;
}
static void stack_destroy(struct misdn_stack *stack)
{
char buf[1024];
if (!stack) return;
if (stack->nt) {
pthread_mutex_destroy(&stack->nstlock);
cleanup_Isdnl2(&stack->nst);
cleanup_Isdnl3(&stack->nst);
}
if (stack->upper_id)
mISDN_write_frame(stack->midev, buf, stack->upper_id, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
pthread_mutex_destroy(&stack->st_lock);
}
static struct misdn_stack * find_stack_by_addr(int addr)
{
struct misdn_stack *stack;
for (stack = glob_mgr->stack_list; stack; stack = stack->next) {
if ((stack->upper_id & STACK_ID_MASK) == (addr & STACK_ID_MASK)) {
/* Found the stack */
break;
}
}
return stack;
}
static struct misdn_stack *find_stack_by_port(int port)
{
struct misdn_stack *stack;
for (stack = glob_mgr->stack_list; stack; stack = stack->next) {
if (stack->port == port) {
/* Found the stack */
break;
}
}
return stack;
}
static struct misdn_stack *find_stack_by_mgr(manager_t *mgr_nt)
{
struct misdn_stack *stack;
for (stack = glob_mgr->stack_list; stack; stack = stack->next) {
if (&stack->mgr == mgr_nt) {
/* Found the stack */
break;
}
}
return stack;
}
static struct misdn_bchannel *find_bc_by_masked_l3id(struct misdn_stack *stack, unsigned long l3id, unsigned long mask)
{
int i;
for (i = 0; i <= stack->b_num; ++i) {
if (stack->bc[i].in_use && (stack->bc[i].l3_id & mask) == (l3id & mask)) {
return &stack->bc[i];
}
}
#if defined(AST_MISDN_ENHANCEMENTS)
/* Search the B channel records for a REGISTER signaling link. */
for (i = MAX_BCHANS + 1; i < ARRAY_LEN(stack->bc); ++i) {
if (stack->bc[i].in_use && (stack->bc[i].l3_id & mask) == (l3id & mask)) {
return &stack->bc[i];
}
}
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
return stack_holder_find(stack, l3id);
}
struct misdn_bchannel *find_bc_by_l3id(struct misdn_stack *stack, unsigned long l3id)
{
int i;
for (i = 0; i <= stack->b_num; ++i) {
if (stack->bc[i].in_use && stack->bc[i].l3_id == l3id) {
return &stack->bc[i];
}
}
#if defined(AST_MISDN_ENHANCEMENTS)
/* Search the B channel records for a REGISTER signaling link. */
for (i = MAX_BCHANS + 1; i < ARRAY_LEN(stack->bc); ++i) {
if (stack->bc[i].in_use && stack->bc[i].l3_id == l3id) {
return &stack->bc[i];
}
}
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
return stack_holder_find(stack, l3id);
}
static struct misdn_bchannel *find_bc_by_addr(unsigned long addr)
{
struct misdn_stack *stack;
int i;
for (stack = glob_mgr->stack_list; stack; stack = stack->next) {
for (i = 0; i <= stack->b_num; i++) {
if (stack->bc[i].in_use
&& ((stack->bc[i].addr & STACK_ID_MASK) == (addr & STACK_ID_MASK)
|| stack->bc[i].layer_id == addr)) {
return &stack->bc[i];
}
}
}
return NULL;
}
static struct misdn_bchannel *find_bc_by_confid(unsigned long confid)
{
struct misdn_stack *stack;
int i;
for (stack = glob_mgr->stack_list; stack; stack = stack->next) {
for (i = 0; i <= stack->b_num; i++) {
if (stack->bc[i].in_use && stack->bc[i].conf_id == confid) {
return &stack->bc[i];
}
}
}
return NULL;
}
static int handle_event_te(struct misdn_bchannel *bc, enum event_e event, iframe_t *frm)
{
struct misdn_stack *stack=get_stack_by_bc(bc);
switch (event) {
case EVENT_CONNECT_ACKNOWLEDGE:
setup_bc(bc);
if ( *bc->crypt_key ) {
cb_log(4, stack->port,
"ENABLING BLOWFISH channel:%d caller%d:\"%s\" <%s> dialed%d:%s\n",
bc->channel,
bc->caller.number_type,
bc->caller.name,
bc->caller.number,
bc->dialed.number_type,
bc->dialed.number);
manager_ph_control_block(bc, BF_ENABLE_KEY, bc->crypt_key, strlen(bc->crypt_key) );
}
if (misdn_cap_is_speech(bc->capability)) {
if ( !bc->nodsp) manager_ph_control(bc, DTMF_TONE_START, 0);
manager_ec_enable(bc);
if ( bc->txgain != 0 ) {
cb_log(4, stack->port, "--> Changing txgain to %d\n", bc->txgain);
manager_ph_control(bc, VOL_CHANGE_TX, bc->txgain);
}
if ( bc->rxgain != 0 ) {
cb_log(4, stack->port, "--> Changing rxgain to %d\n", bc->rxgain);
manager_ph_control(bc, VOL_CHANGE_RX, bc->rxgain);
}
}
break;
case EVENT_CONNECT:
if ( *bc->crypt_key ) {
cb_log(4, stack->port,
"ENABLING BLOWFISH channel:%d caller%d:\"%s\" <%s> dialed%d:%s\n",
bc->channel,
bc->caller.number_type,
bc->caller.name,
bc->caller.number,
bc->dialed.number_type,
bc->dialed.number);
manager_ph_control_block(bc, BF_ENABLE_KEY, bc->crypt_key, strlen(bc->crypt_key) );
}
case EVENT_ALERTING:
case EVENT_PROGRESS:
case EVENT_PROCEEDING:
case EVENT_SETUP_ACKNOWLEDGE:
case EVENT_SETUP:
{
if (bc->channel == 0xff || bc->channel<=0)
bc->channel=0;
if (find_free_chan_in_stack(stack, bc, bc->channel, 0)<0){
if (!stack->pri && !stack->ptp) {
bc->cw=1;
break;
}
if (!bc->channel) {
cb_log(0, stack->port, "Any Channel Requested, but we have no more!!\n");
} else {
cb_log(0, stack->port,
"Requested Channel Already in Use releasing this call with cause %d!!!!\n",
bc->out_cause);
}
/* when the channel is already in use, we can't
* simply clear it, we need to make sure that
* it will still be marked as in_use in the
* available channels list.*/
bc->channel=0;
misdn_lib_send_event(bc,EVENT_RELEASE_COMPLETE);
return -1;
}
if (event != EVENT_SETUP) {
setup_bc(bc);
}
break;
}
case EVENT_RELEASE_COMPLETE:
case EVENT_RELEASE:
break;
default:
break;
}
return 0;
}
static int handle_cr ( struct misdn_stack *stack, iframe_t *frm)
{
struct misdn_bchannel dummybc;
struct misdn_bchannel *bc;
int channel;
if (!stack) return -1;
switch (frm->prim) {
case CC_NEW_CR|INDICATION:
cb_log(7, stack->port, " --> lib: NEW_CR Ind with l3id:%x on this port.\n",frm->dinfo);
bc = misdn_lib_get_free_bc(stack->port, 0, 1, 0);
if (!bc) {
cb_log(0, stack->port, " --> !! lib: No free channel!\n");
return -1;
}
cb_log(7, stack->port, " --> new_process: New L3Id: %x\n",frm->dinfo);
bc->l3_id=frm->dinfo;
return 1;
case CC_NEW_CR|CONFIRM:
return 1;
case CC_NEW_CR|REQUEST:
return 1;
case CC_RELEASE_CR|REQUEST:
return 1;
case CC_RELEASE_CR|CONFIRM:
break;
case CC_RELEASE_CR|INDICATION:
cb_log(4, stack->port, " --> lib: RELEASE_CR Ind with l3id:%x\n", frm->dinfo);
bc = find_bc_by_l3id(stack, frm->dinfo);
if (!bc) {
cb_log(4, stack->port, " --> Didn't find BC so temporarily creating dummy BC (l3id:%x) on this port.\n", frm->dinfo);
misdn_make_dummy(&dummybc, stack->port, frm->dinfo, stack->nt, 0);
bc = &dummybc;
}
channel = bc->channel;
cb_log(4, stack->port, " --> lib: CLEANING UP l3id: %x\n", frm->dinfo);
/* bc->pid = 0; */
bc->need_disconnect = 0;
bc->need_release = 0;
bc->need_release_complete = 0;
cb_event(EVENT_CLEANUP, bc, glob_mgr->user_data);
empty_bc(bc);
clean_up_bc(bc);
if (channel > 0)
empty_chan_in_stack(stack, channel);
bc->in_use = 0;
dump_chan_list(stack);
if (bc->stack_holder) {
cb_log(4, stack->port, "REMOVING Holder\n");
stack_holder_remove(stack, bc);
free(bc);
}
return 1;
default:
break;
}
return 0;
}
/* Empties bc if it's reserved (no SETUP out yet) */
void misdn_lib_release(struct misdn_bchannel *bc)
{
int channel;
struct misdn_stack *stack=get_stack_by_bc(bc);
if (!stack) {
cb_log(1,0,"misdn_release: No Stack found\n");
return;
}
channel = bc->channel;
empty_bc(bc);
clean_up_bc(bc);
if (channel > 0) {
empty_chan_in_stack(stack, channel);
}
bc->in_use=0;
}
int misdn_lib_get_port_up (int port)
{ /* Pull Up L1 */
struct misdn_stack *stack;
for (stack=glob_mgr->stack_list;
stack;
stack=stack->next) {
if (stack->port == port) {
if (!stack->l1link)
misdn_lib_get_l1_up(stack);
/* handle_l1 will start L2 for NT. */
if (!stack->l2link && !stack->nt) {
misdn_lib_get_l2_up(stack);
}
return 0;
}
}
return 0;
}
int misdn_lib_get_port_down (int port)
{ /* Pull Down L1 */
struct misdn_stack *stack;
for (stack=glob_mgr->stack_list;
stack;
stack=stack->next) {
if (stack->port == port) {
if (stack->l2link)
misdn_lib_get_l2_down(stack);
misdn_lib_get_l1_down(stack);
return 0;
}
}
return 0;
}
int misdn_lib_port_up(int port, int check)
{
struct misdn_stack *stack;
for (stack=glob_mgr->stack_list;
stack;
stack=stack->next) {
if (stack->port == port) {
if (stack->blocked) {
cb_log(0,port, "Port Blocked:%d L2:%d L1:%d\n", stack->blocked, stack->l2link, stack->l1link);
return -1;
}
if (stack->ptp ) {
if (stack->l1link && stack->l2link) {
return 1;
} else {
cb_log(1,port, "Port Down L2:%d L1:%d\n",
stack->l2link, stack->l1link);
return 0;
}
} else {
if ( !check || stack->l1link )
return 1;
else {
cb_log(1,port, "Port down PMP\n");
return 0;
}
}
}
}
return -1;
}
static int release_cr(struct misdn_stack *stack, mISDNuser_head_t *hh)
{
struct misdn_bchannel *bc=find_bc_by_l3id(stack, hh->dinfo);
struct misdn_bchannel dummybc;
iframe_t frm; /* fake te frm to remove callref from global callreflist */
frm.dinfo = hh->dinfo;
frm.addr=stack->upper_id | FLG_MSG_DOWN;
frm.prim = CC_RELEASE_CR|INDICATION;
cb_log(4, stack->port, " --> CC_RELEASE_CR: Faking Release_cr for %x l3id:%x\n",frm.addr, frm.dinfo);
/** removing procid **/
if (!bc) {
cb_log(4, stack->port, " --> Didn't find BC so temporarily creating dummy BC (l3id:%x) on this port.\n", hh->dinfo);
misdn_make_dummy(&dummybc, stack->port, hh->dinfo, stack->nt, 0);
bc=&dummybc;
}
if ((bc->l3_id & 0xff00) == 0xff00) {
cb_log(4, stack->port, " --> Removing Process Id:%x on this port.\n", bc->l3_id & 0xff);
stack->procids[bc->l3_id & 0xff] = 0;
}
if (handle_cr(stack, &frm)<0) {
}
return 0 ;
}
static int handle_event_nt(void *dat, void *arg)
{
struct misdn_bchannel dummybc;
struct misdn_bchannel *bc;
manager_t *mgr = (manager_t *)dat;
msg_t *msg = (msg_t *)arg;
msg_t *dmsg;
mISDNuser_head_t *hh;
struct misdn_stack *stack;
enum event_e event;
int reject=0;
int l3id;
int channel;
int tmpcause;
if (!msg || !mgr)
return(-EINVAL);
stack = find_stack_by_mgr(mgr);
hh=(mISDNuser_head_t*)msg->data;
/*
* When we are called from the mISDNuser lib, the nstlock is held and it
* must be held when we return. We unlock here because the lib may be
* entered again recursively.
*/
pthread_mutex_unlock(&stack->nstlock);
cb_log(5, stack->port, " --> lib: prim %x dinfo %x\n",hh->prim, hh->dinfo);
switch(hh->prim) {
case CC_RETRIEVE|INDICATION:
{
struct misdn_bchannel *hold_bc;
iframe_t frm; /* fake te frm to add callref to global callreflist */
frm.dinfo = hh->dinfo;
frm.addr=stack->upper_id | FLG_MSG_DOWN;
frm.prim = CC_NEW_CR|INDICATION;
if (handle_cr( stack, &frm)< 0) {
goto ERR_NO_CHANNEL;
}
bc = find_bc_by_l3id(stack, hh->dinfo);
hold_bc = stack_holder_find(stack, bc->l3_id);
cb_log(4, stack->port, "bc_l3id:%x holded_bc_l3id:%x\n",bc->l3_id, hold_bc->l3_id);
if (hold_bc) {
cb_log(4, stack->port, "REMOVING Holder\n");
/* swap the backup to our new channel back */
stack_holder_remove(stack, hold_bc);
memcpy(bc, hold_bc, sizeof(*bc));
free(hold_bc);
bc->holded=0;
bc->b_stid=0;
}
break;
}
case CC_SETUP | CONFIRM:
l3id = *((int *) (msg->data + mISDNUSER_HEAD_SIZE));
cb_log(4, stack->port, " --> lib: Event_ind:SETUP CONFIRM [NT] : new L3ID is %x\n", l3id);
bc = find_bc_by_l3id(stack, hh->dinfo);
if (bc) {
cb_log (2, bc->port, "I IND :CC_SETUP|CONFIRM: old l3id:%x new l3id:%x\n", bc->l3_id, l3id);
bc->l3_id = l3id;
cb_event(EVENT_NEW_L3ID, bc, glob_mgr->user_data);
} else {
cb_log(4, stack->port, "Bc Not found (after SETUP CONFIRM)\n");
}
free_msg(msg);
pthread_mutex_lock(&stack->nstlock);
return 0;
case CC_SETUP | INDICATION:
bc = misdn_lib_get_free_bc(stack->port, 0, 1, 0);
if (!bc) {
goto ERR_NO_CHANNEL;
}
cb_log(4, stack->port, " --> new_process: New L3Id: %x\n",hh->dinfo);
bc->l3_id=hh->dinfo;
break;
#if defined(AST_MISDN_ENHANCEMENTS)
case CC_REGISTER | CONFIRM:
l3id = *((int *) (msg->data + mISDNUSER_HEAD_SIZE));
cb_log(4, stack->port, " --> lib: Event_ind:REGISTER CONFIRM [NT] : new L3ID is %x\n", l3id);
bc = find_bc_by_l3id(stack, hh->dinfo);
if (bc) {
cb_log (2, bc->port, "I IND :CC_REGISTER|CONFIRM: old l3id:%x new l3id:%x\n", bc->l3_id, l3id);
bc->l3_id = l3id;
} else {
cb_log(4, stack->port, "Bc Not found (after REGISTER CONFIRM)\n");
}
free_msg(msg);
pthread_mutex_lock(&stack->nstlock);
return 0;
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
#if defined(AST_MISDN_ENHANCEMENTS)
case CC_REGISTER | INDICATION:
bc = misdn_lib_get_register_bc(stack->port);
if (!bc) {
goto ERR_NO_CHANNEL;
}
cb_log(4, stack->port, " --> new_process: New L3Id: %x\n",hh->dinfo);
bc->l3_id=hh->dinfo;
break;
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
case CC_CONNECT_ACKNOWLEDGE|INDICATION:
break;
case CC_ALERTING|INDICATION:
case CC_PROCEEDING|INDICATION:
case CC_SETUP_ACKNOWLEDGE|INDICATION:
case CC_CONNECT|INDICATION:
break;
case CC_DISCONNECT|INDICATION:
bc = find_bc_by_l3id(stack, hh->dinfo);
if (!bc) {
bc=find_bc_by_masked_l3id(stack, hh->dinfo, 0xffff0000);
if (bc) {
int myprocid=bc->l3_id&0x0000ffff;
hh->dinfo=(hh->dinfo&0xffff0000)|myprocid;
cb_log(3,stack->port,"Reject dinfo: %x cause:%d\n",hh->dinfo,bc->cause);
reject=1;
}
}
break;
case CC_FACILITY|INDICATION:
bc = find_bc_by_l3id(stack, hh->dinfo);
if (!bc) {
bc=find_bc_by_masked_l3id(stack, hh->dinfo, 0xffff0000);
if (bc) {
int myprocid=bc->l3_id&0x0000ffff;
hh->dinfo=(hh->dinfo&0xffff0000)|myprocid;
cb_log(4,bc->port,"Repaired reject Bug, new dinfo: %x\n",hh->dinfo);
}
}
break;
case CC_RELEASE_COMPLETE|INDICATION:
break;
case CC_SUSPEND|INDICATION:
cb_log(4, stack->port, " --> Got Suspend, sending Reject for now\n");
dmsg = create_l3msg(CC_SUSPEND_REJECT | REQUEST,MT_SUSPEND_REJECT, hh->dinfo,sizeof(RELEASE_COMPLETE_t), 1);
pthread_mutex_lock(&stack->nstlock);
stack->nst.manager_l3(&stack->nst, dmsg);
free_msg(msg);
return 0;
case CC_RESUME|INDICATION:
break;
case CC_RELEASE|CONFIRM:
bc = find_bc_by_l3id(stack, hh->dinfo);
if (bc) {
cb_log(1, stack->port, "CC_RELEASE|CONFIRM (l3id:%x), sending RELEASE_COMPLETE\n", hh->dinfo);
misdn_lib_send_event(bc, EVENT_RELEASE_COMPLETE);
}
break;
case CC_RELEASE|INDICATION:
break;
case CC_RELEASE_CR|INDICATION:
release_cr(stack, hh);
free_msg(msg);
pthread_mutex_lock(&stack->nstlock);
return 0;
case CC_NEW_CR|INDICATION:
/* Got New CR for bchan, for now I handle this one in */
/* connect_ack, Need to be changed */
l3id = *((int *) (msg->data + mISDNUSER_HEAD_SIZE));
bc = find_bc_by_l3id(stack, hh->dinfo);
if (!bc) {
cb_log(0, stack->port, " --> In NEW_CR: didn't found bc ??\n");
pthread_mutex_lock(&stack->nstlock);
return -1;
}
if (((l3id&0xff00)!=0xff00) && ((bc->l3_id&0xff00)==0xff00)) {
cb_log(4, stack->port, " --> Removing Process Id:%x on this port.\n", 0xff&bc->l3_id);
stack->procids[bc->l3_id&0xff] = 0 ;
}
cb_log(4, stack->port, "lib: Event_ind:CC_NEW_CR : very new L3ID is %x\n",l3id );
bc->l3_id =l3id;
if (!bc->is_register_pool) {
cb_event(EVENT_NEW_L3ID, bc, glob_mgr->user_data);
}
free_msg(msg);
pthread_mutex_lock(&stack->nstlock);
return 0;
case DL_ESTABLISH | INDICATION:
case DL_ESTABLISH | CONFIRM:
cb_log(3, stack->port, "%% GOT L2 Activate Info.\n");
if (stack->ptp && stack->l2link) {
cb_log(0, stack->port, "%% GOT L2 Activate Info. but we're activated already.. this l2 is faulty, blocking port\n");
cb_event(EVENT_PORT_ALARM, &stack->bc[0], glob_mgr->user_data);
}
if (stack->ptp && !stack->restart_sent) {
/* make sure we restart the interface of the
* other side */
stack->restart_sent=1;
misdn_lib_send_restart(stack->port, -1);
}
/* when we get the L2 UP, the L1 is UP definitely too*/
stack->l2link = 1;
stack->l2upcnt=0;
free_msg(msg);
pthread_mutex_lock(&stack->nstlock);
return 0;
case DL_RELEASE | INDICATION:
case DL_RELEASE | CONFIRM:
cb_log(3, stack->port, "%% GOT L2 DeActivate Info.\n");
if (stack->ptp) {
if (stack->l2upcnt>3) {
cb_log(0 , stack->port, "!!! Could not Get the L2 up after 3 Attempts!!!\n");
} else {
if (stack->l1link) {
misdn_lib_get_l2_up(stack);
stack->l2upcnt++;
}
}
}
stack->l2link = 0;
free_msg(msg);
pthread_mutex_lock(&stack->nstlock);
return 0;
default:
break;
}
/* Parse Events and fire_up to App. */
event = isdn_msg_get_event(msgs_g, msg, 1);
bc = find_bc_by_l3id(stack, hh->dinfo);
if (!bc) {
cb_log(4, stack->port, " --> Didn't find BC so temporarily creating dummy BC (l3id:%x).\n", hh->dinfo);
misdn_make_dummy(&dummybc, stack->port, hh->dinfo, stack->nt, 0);
bc = &dummybc;
}
isdn_msg_parse_event(msgs_g, msg, bc, 1);
switch (event) {
case EVENT_SETUP:
if (bc->channel <= 0 || bc->channel == 0xff) {
bc->channel = 0;
}
if (find_free_chan_in_stack(stack, bc, bc->channel, 0) < 0) {
goto ERR_NO_CHANNEL;
}
break;
case EVENT_RELEASE:
case EVENT_RELEASE_COMPLETE:
channel = bc->channel;
tmpcause = bc->cause;
empty_bc(bc);
bc->cause = tmpcause;
clean_up_bc(bc);
if (channel > 0)
empty_chan_in_stack(stack, channel);
bc->in_use = 0;
break;
default:
break;
}
if(!isdn_get_info(msgs_g, event, 1)) {
cb_log(4, stack->port, "Unknown Event Ind: prim %x dinfo %x\n", hh->prim, hh->dinfo);
} else {
if (reject) {
switch(bc->cause) {
case AST_CAUSE_USER_BUSY:
cb_log(1, stack->port, "Siemens Busy reject..\n");
break;
default:
break;
}
}
cb_event(event, bc, glob_mgr->user_data);
}
free_msg(msg);
pthread_mutex_lock(&stack->nstlock);
return 0;
ERR_NO_CHANNEL:
cb_log(4, stack->port, "Patch from MEIDANIS:Sending RELEASE_COMPLETE %x (No free Chan for you..)\n", hh->dinfo);
dmsg = create_l3msg(CC_RELEASE_COMPLETE | REQUEST, MT_RELEASE_COMPLETE, hh->dinfo, sizeof(RELEASE_COMPLETE_t), 1);
pthread_mutex_lock(&stack->nstlock);
stack->nst.manager_l3(&stack->nst, dmsg);
free_msg(msg);
return 0;
}
static int handle_timers(msg_t* msg)
{
iframe_t *frm= (iframe_t*)msg->data;
struct misdn_stack *stack;
/* Timer Stuff */
switch (frm->prim) {
case MGR_INITTIMER | CONFIRM:
case MGR_ADDTIMER | CONFIRM:
case MGR_DELTIMER | CONFIRM:
case MGR_REMOVETIMER | CONFIRM:
free_msg(msg);
return(1);
}
if (frm->prim==(MGR_TIMER | INDICATION) ) {
for (stack = glob_mgr->stack_list;
stack;
stack = stack->next) {
itimer_t *it;
if (!stack->nt) continue;
it = stack->nst.tlist;
/* find timer */
for(it=stack->nst.tlist;
it;
it=it->next) {
if (it->id == (int)frm->addr)
break;
}
if (it) {
mISDN_write_frame(stack->midev, msg->data, frm->addr,
MGR_TIMER | RESPONSE, 0, 0, NULL, TIMEOUT_1SEC);
test_and_clear_bit(FLG_TIMER_RUNING, (long unsigned int *)&it->Flags);
pthread_mutex_lock(&stack->nstlock);
it->function(it->data);
pthread_mutex_unlock(&stack->nstlock);
free_msg(msg);
return 1;
}
}
cb_log(0, 0, "Timer Msg without Timer ??\n");
free_msg(msg);
return 1;
}
return 0;
}
void misdn_lib_tone_generator_start(struct misdn_bchannel *bc)
{
bc->generate_tone=1;
}
void misdn_lib_tone_generator_stop(struct misdn_bchannel *bc)
{
bc->generate_tone=0;
}
static int do_tone(struct misdn_bchannel *bc, int len)
{
bc->tone_cnt=len;
if (bc->generate_tone) {
cb_event(EVENT_TONE_GENERATE, bc, glob_mgr->user_data);
if ( !bc->nojitter ) {
misdn_tx_jitter(bc,len);
}
return 1;
}
return 0;
}
#ifdef MISDN_SAVE_DATA
static void misdn_save_data(int id, char *p1, int l1, char *p2, int l2)
{
char n1[32],n2[32];
FILE *rx, *tx;
sprintf(n1,"/tmp/misdn-rx-%d.raw",id);
sprintf(n2,"/tmp/misdn-tx-%d.raw",id);
rx = fopen(n1,"a+");
tx = fopen(n2,"a+");
if (!rx || !tx) {
cb_log(0,0,"Couldn't open files: %s\n",strerror(errno));
if (rx)
fclose(rx);
if (tx)
fclose(tx);
return ;
}
fwrite(p1,1,l1,rx);
fwrite(p2,1,l2,tx);
fclose(rx);
fclose(tx);
}
#endif
void misdn_tx_jitter(struct misdn_bchannel *bc, int len)
{
char buf[4096 + mISDN_HEADER_LEN];
char *data=&buf[mISDN_HEADER_LEN];
iframe_t *txfrm= (iframe_t*)buf;
int jlen, r;
jlen=cb_jb_empty(bc,data,len);
if (jlen) {
#ifdef MISDN_SAVE_DATA
misdn_save_data((bc->port*100+bc->channel), data, jlen, bc->bframe, bc->bframe_len);
#endif
flip_buf_bits( data, jlen);
if (jlen < len) {
cb_log(1, bc->port, "Jitterbuffer Underrun. Got %d of expected %d\n", jlen, len);
}
txfrm->prim = DL_DATA|REQUEST;
txfrm->dinfo = 0;
txfrm->addr = bc->addr|FLG_MSG_DOWN; /* | IF_DOWN; */
txfrm->len =jlen;
cb_log(9, bc->port, "Transmitting %d samples 2 misdn\n", txfrm->len);
r=mISDN_write( glob_mgr->midev, buf, txfrm->len + mISDN_HEADER_LEN, 8000 );
} else {
#define MISDN_GEN_SILENCE
#ifdef MISDN_GEN_SILENCE
int cnt=len/TONE_SILENCE_SIZE;
int rest=len%TONE_SILENCE_SIZE;
int i;
for (i=0; i<cnt; i++) {
memcpy(data, tone_silence_flip, TONE_SILENCE_SIZE );
data +=TONE_SILENCE_SIZE;
}
if (rest) {
memcpy(data, tone_silence_flip, rest);
}
txfrm->prim = DL_DATA|REQUEST;
txfrm->dinfo = 0;
txfrm->addr = bc->addr|FLG_MSG_DOWN; /* | IF_DOWN; */
txfrm->len =len;
cb_log(5, bc->port, "Transmitting %d samples of silence to misdn\n", len);
r=mISDN_write( glob_mgr->midev, buf, txfrm->len + mISDN_HEADER_LEN, 8000 );
#else
r = 0;
#endif
}
if (r < 0) {
cb_log(1, bc->port, "Error in mISDN_write (%s)\n", strerror(errno));
}
}
static int handle_bchan(msg_t *msg)
{
iframe_t *frm= (iframe_t*)msg->data;
struct misdn_bchannel *bc=find_bc_by_addr(frm->addr);
struct misdn_stack *stack;
if (!bc) {
cb_log(1,0,"handle_bchan: BC not found for prim:%x with addr:%x dinfo:%x\n", frm->prim, frm->addr, frm->dinfo);
return 0 ;
}
stack = get_stack_by_bc(bc);
if (!stack) {
cb_log(0, bc->port,"handle_bchan: STACK not found for prim:%x with addr:%x dinfo:%x\n", frm->prim, frm->addr, frm->dinfo);
return 0;
}
switch (frm->prim) {
case MGR_SETSTACK| CONFIRM:
cb_log(3, stack->port, "BCHAN: MGR_SETSTACK|CONFIRM pid:%d\n",bc->pid);
break;
case MGR_SETSTACK| INDICATION:
cb_log(3, stack->port, "BCHAN: MGR_SETSTACK|IND pid:%d\n",bc->pid);
break;
case MGR_DELLAYER| INDICATION:
cb_log(3, stack->port, "BCHAN: MGR_DELLAYER|IND pid:%d\n",bc->pid);
break;
case MGR_DELLAYER| CONFIRM:
cb_log(3, stack->port, "BCHAN: MGR_DELLAYER|CNF pid:%d\n",bc->pid);
bc->pid=0;
bc->addr=0;
free_msg(msg);
return 1;
case PH_ACTIVATE | INDICATION:
case DL_ESTABLISH | INDICATION:
cb_log(3, stack->port, "BCHAN: ACT Ind pid:%d\n", bc->pid);
free_msg(msg);
return 1;
case PH_ACTIVATE | CONFIRM:
case DL_ESTABLISH | CONFIRM:
cb_log(3, stack->port, "BCHAN: bchan ACT Confirm pid:%d\n",bc->pid);
free_msg(msg);
return 1;
case DL_ESTABLISH | REQUEST:
{
char buf[128];
mISDN_write_frame(stack->midev, buf, bc->addr | FLG_MSG_TARGET | FLG_MSG_DOWN, DL_ESTABLISH | CONFIRM, 0,0, NULL, TIMEOUT_1SEC);
}
free_msg(msg);
return 1;
case DL_RELEASE|REQUEST:
{
char buf[128];
mISDN_write_frame(stack->midev, buf, bc->addr | FLG_MSG_TARGET | FLG_MSG_DOWN, DL_RELEASE| CONFIRM, 0,0, NULL, TIMEOUT_1SEC);
}
free_msg(msg);
return 1;
case PH_DEACTIVATE | INDICATION:
case DL_RELEASE | INDICATION:
cb_log (3, stack->port, "BCHAN: DeACT Ind pid:%d\n",bc->pid);
free_msg(msg);
return 1;
case PH_DEACTIVATE | CONFIRM:
case DL_RELEASE | CONFIRM:
cb_log(3, stack->port, "BCHAN: DeACT Conf pid:%d\n",bc->pid);
free_msg(msg);
return 1;
case PH_CONTROL|INDICATION:
{
unsigned int *cont = (unsigned int *) &frm->data.p;
cb_log(4, stack->port,
"PH_CONTROL: channel:%d caller%d:\"%s\" <%s> dialed%d:%s \n",
bc->channel,
bc->caller.number_type,
bc->caller.name,
bc->caller.number,
bc->dialed.number_type,
bc->dialed.number);
if ((*cont & ~DTMF_TONE_MASK) == DTMF_TONE_VAL) {
int dtmf = *cont & DTMF_TONE_MASK;
cb_log(4, stack->port, " --> DTMF TONE: %c\n",dtmf);
bc->dtmf=dtmf;
cb_event(EVENT_DTMF_TONE, bc, glob_mgr->user_data);
free_msg(msg);
return 1;
}
if (*cont == BF_REJECT) {
cb_log(4, stack->port, " --> BF REJECT\n");
free_msg(msg);
return 1;
}
if (*cont == BF_ACCEPT) {
cb_log(4, stack->port, " --> BF ACCEPT\n");
free_msg(msg);
return 1;
}
}
break;
case PH_DATA|REQUEST:
case DL_DATA|REQUEST:
cb_log(0, stack->port, "DL_DATA REQUEST \n");
do_tone(bc, 64);
free_msg(msg);
return 1;
case PH_DATA|INDICATION:
case DL_DATA|INDICATION:
{
bc->bframe = (void*)&frm->data.i;
bc->bframe_len = frm->len;
/** Anyway flip the bufbits **/
if ( misdn_cap_is_speech(bc->capability) )
flip_buf_bits(bc->bframe, bc->bframe_len);
if (!bc->bframe_len) {
cb_log(2, stack->port, "DL_DATA INDICATION bc->addr:%x frm->addr:%x\n", bc->addr, frm->addr);
free_msg(msg);
return 1;
}
if ( (bc->addr&STACK_ID_MASK) != (frm->addr&STACK_ID_MASK) ) {
cb_log(2, stack->port, "DL_DATA INDICATION bc->addr:%x frm->addr:%x\n", bc->addr, frm->addr);
free_msg(msg);
return 1;
}
#if MISDN_DEBUG
cb_log(0, stack->port, "DL_DATA INDICATION Len %d\n", frm->len);
#endif
if ( (bc->bc_state == BCHAN_ACTIVATED) && frm->len > 0) {
int t;
#ifdef MISDN_B_DEBUG
cb_log(0,bc->port,"do_tone START\n");
#endif
t=do_tone(bc,frm->len);
#ifdef MISDN_B_DEBUG
cb_log(0,bc->port,"do_tone STOP (%d)\n",t);
#endif
if ( !t ) {
int i;
if ( misdn_cap_is_speech(bc->capability)) {
if ( !bc->nojitter ) {
#ifdef MISDN_B_DEBUG
cb_log(0,bc->port,"tx_jitter START\n");
#endif
misdn_tx_jitter(bc,frm->len);
#ifdef MISDN_B_DEBUG
cb_log(0,bc->port,"tx_jitter STOP\n");
#endif
}
}
#ifdef MISDN_B_DEBUG
cb_log(0,bc->port,"EVENT_B_DATA START\n");
#endif
i = cb_event(EVENT_BCHAN_DATA, bc, glob_mgr->user_data);
#ifdef MISDN_B_DEBUG
cb_log(0,bc->port,"EVENT_B_DATA STOP\n");
#endif
if (i<0) {
cb_log(10,stack->port,"cb_event returned <0\n");
/*clean_up_bc(bc);*/
}
}
}
free_msg(msg);
return 1;
}
case PH_CONTROL | CONFIRM:
cb_log(4, stack->port, "PH_CONTROL|CNF bc->addr:%x\n", frm->addr);
free_msg(msg);
return 1;
case PH_DATA | CONFIRM:
case DL_DATA|CONFIRM:
#if MISDN_DEBUG
cb_log(0, stack->port, "Data confirmed\n");
#endif
free_msg(msg);
return 1;
case DL_DATA|RESPONSE:
#if MISDN_DEBUG
cb_log(0, stack->port, "Data response\n");
#endif
break;
}
return 0;
}
static int handle_frm_nt(msg_t *msg)
{
iframe_t *frm= (iframe_t*)msg->data;
struct misdn_stack *stack;
int err=0;
stack=find_stack_by_addr( frm->addr );
if (!stack || !stack->nt) {
return 0;
}
pthread_mutex_lock(&stack->nstlock);
if ((err=stack->nst.l1_l2(&stack->nst,msg))) {
pthread_mutex_unlock(&stack->nstlock);
if (nt_err_cnt > 0 ) {
if (nt_err_cnt < 100) {
nt_err_cnt++;
cb_log(0, stack->port, "NT Stack sends us error: %d \n", err);
} else if (nt_err_cnt < 105){
cb_log(0, stack->port, "NT Stack sends us error: %d over 100 times, so I'll stop this message\n", err);
nt_err_cnt = - 1;
}
}
free_msg(msg);
return 1;
}
pthread_mutex_unlock(&stack->nstlock);
return 1;
}
static int handle_frm_te(msg_t *msg)
{
struct misdn_bchannel dummybc;
struct misdn_bchannel *bc;
iframe_t *frm;
struct misdn_stack *stack;
enum event_e event;
enum event_response_e response;
int ret;
int channel;
int tmpcause;
int tmp_out_cause;
frm = (iframe_t*) msg->data;
stack = find_stack_by_addr(frm->addr);
if (!stack || stack->nt) {
return 0;
}
cb_log(4, stack->port, "handle_frm_te: frm->addr:%x frm->prim:%x\n", frm->addr, frm->prim);
ret = handle_cr(stack, frm);
if (ret < 0) {
cb_log(3, stack->port, "handle_frm_te: handle_cr <0 prim:%x addr:%x\n", frm->prim, frm->addr);
}
if (ret) {
free_msg(msg);
return 1;
}
bc = find_bc_by_l3id(stack, frm->dinfo);
if (!bc) {
misdn_make_dummy(&dummybc, stack->port, 0, stack->nt, 0);
switch (frm->prim) {
case CC_RESTART | CONFIRM:
dummybc.l3_id = MISDN_ID_GLOBAL;
bc = &dummybc;
break;
case CC_SETUP | INDICATION:
dummybc.l3_id = frm->dinfo;
bc = &dummybc;
/* set a reasonable cause */
bc->out_cause = AST_CAUSE_REQUESTED_CHAN_UNAVAIL;
/* if we want to send something the flag must be set! */
bc->need_release_complete = 1;
misdn_lib_send_event(bc, EVENT_RELEASE_COMPLETE);
free_msg(msg);
return 1;
default:
if (frm->prim == (CC_FACILITY | INDICATION)) {
cb_log(5, stack->port, " --> Using Dummy BC for FACILITY\n");
} else {
cb_log(0, stack->port, " --> Didn't find BC so temporarily creating dummy BC (l3id:%x) on this port.\n", frm->dinfo);
dummybc.l3_id = frm->dinfo;
}
bc = &dummybc;
break;
}
}
event = isdn_msg_get_event(msgs_g, msg, 0);
isdn_msg_parse_event(msgs_g, msg, bc, 0);
/* Preprocess some Events */
ret = handle_event_te(bc, event, frm);
if (ret < 0) {
cb_log(0, stack->port, "couldn't handle event\n");
free_msg(msg);
return 1;
}
/* shoot up event to App: */
cb_log(5, stack->port, "lib Got Prim: Addr %x prim %x dinfo %x\n", frm->addr, frm->prim, frm->dinfo);
if (!isdn_get_info(msgs_g, event, 0)) {
cb_log(0, stack->port, "Unknown Event Ind: Addr:%x prim %x dinfo %x\n", frm->addr, frm->prim, frm->dinfo);
response = RESPONSE_OK;
} else {
response = cb_event(event, bc, glob_mgr->user_data);
}
switch (event) {
case EVENT_SETUP:
switch (response) {
case RESPONSE_IGNORE_SETUP_WITHOUT_CLOSE:
cb_log(0, stack->port, "TOTALLY IGNORING SETUP\n");
break;
case RESPONSE_IGNORE_SETUP:
cb_log(0, stack->port, "GOT IGNORE SETUP\n");
/* I think we should send CC_RELEASE_CR, but am not sure*/
bc->out_cause = AST_CAUSE_NORMAL_CLEARING;
/* fall through */
case RESPONSE_RELEASE_SETUP:
if (response == RESPONSE_RELEASE_SETUP) {
cb_log(0, stack->port, "GOT RELEASE SETUP\n");
}
misdn_lib_send_event(bc, EVENT_RELEASE_COMPLETE);
break;
case RESPONSE_OK:
cb_log(4, stack->port, "GOT SETUP OK\n");
break;
default:
cb_log(0, stack->port, "GOT UNKNOWN SETUP RESPONSE\n");
break;
}
break;
case EVENT_RELEASE_COMPLETE:
/* release bchannel only after we've announced the RELEASE_COMPLETE */
channel = bc->channel;
tmpcause = bc->cause;
tmp_out_cause = bc->out_cause;
empty_bc(bc);
bc->cause = tmpcause;
bc->out_cause = tmp_out_cause;
clean_up_bc(bc);
bc->in_use = 0;
if (tmpcause == AST_CAUSE_REQUESTED_CHAN_UNAVAIL) {
cb_log(0, stack->port, "**** Received CAUSE:%d, restarting channel %d\n", AST_CAUSE_REQUESTED_CHAN_UNAVAIL, channel);
misdn_lib_send_restart(stack->port, channel);
}
if (channel > 0) {
empty_chan_in_stack(stack, channel);
}
break;
case EVENT_RESTART:
cb_log(0, stack->port, "**** Received RESTART channel:%d\n", bc->restart_channel);
empty_chan_in_stack(stack, bc->restart_channel);
break;
default:
break;
}
cb_log(5, stack->port, "Freeing Msg on prim:%x \n", frm->prim);
free_msg(msg);
return 1;
}
static int handle_l1(msg_t *msg)
{
iframe_t *frm = (iframe_t*) msg->data;
struct misdn_stack *stack = find_stack_by_addr(frm->addr);
if (!stack) return 0 ;
switch (frm->prim) {
case PH_ACTIVATE | CONFIRM:
/* we have to check for errors! */
if (frm->len) {
cb_log (3, stack->port, "L1: PH_ACTIVATE|REQUEST returned error!\n");
free_msg(msg);
return 1;
}
/* fall through */
case PH_ACTIVATE | INDICATION:
cb_log (3, stack->port, "L1: PH L1Link Up!\n");
stack->l1link=1;
if (stack->nt) {
pthread_mutex_lock(&stack->nstlock);
if (stack->nst.l1_l2(&stack->nst, msg))
free_msg(msg);
pthread_mutex_unlock(&stack->nstlock);
if (stack->ptp)
misdn_lib_get_l2_up(stack);
} else {
free_msg(msg);
}
return 1;
case PH_ACTIVATE | REQUEST:
free_msg(msg);
cb_log(3,stack->port,"L1: PH_ACTIVATE|REQUEST \n");
return 1;
case PH_DEACTIVATE | REQUEST:
free_msg(msg);
cb_log(3,stack->port,"L1: PH_DEACTIVATE|REQUEST \n");
return 1;
case PH_DEACTIVATE | CONFIRM:
/* we have to check for errors! */
if (frm->len) {
cb_log (3, stack->port, "L1: PH_DEACTIVATE|REQUEST returned error!\n");
free_msg(msg);
return 1;
}
/* fall through */
case PH_DEACTIVATE | INDICATION:
cb_log (3, stack->port, "L1: PH L1Link Down! \n");
#if 0
for (i=0; i<=stack->b_num; i++) {
if (global_state == MISDN_INITIALIZED) {
cb_event(EVENT_CLEANUP, &stack->bc[i], glob_mgr->user_data);
}
}
#endif
if (stack->nt) {
pthread_mutex_lock(&stack->nstlock);
if (stack->nst.l1_l2(&stack->nst, msg))
free_msg(msg);
pthread_mutex_unlock(&stack->nstlock);
} else {
free_msg(msg);
}
stack->l1link=0;
stack->l2link=0;
return 1;
}
return 0;
}
static int handle_l2(msg_t *msg)
{
iframe_t *frm = (iframe_t*) msg->data;
struct misdn_stack *stack = find_stack_by_addr(frm->addr);
if (!stack) {
return 0 ;
}
switch(frm->prim) {
case DL_ESTABLISH | REQUEST:
cb_log(1,stack->port,"DL_ESTABLISH|REQUEST \n");
free_msg(msg);
return 1;
case DL_RELEASE | REQUEST:
cb_log(1,stack->port,"DL_RELEASE|REQUEST \n");
free_msg(msg);
return 1;
case DL_ESTABLISH | INDICATION:
case DL_ESTABLISH | CONFIRM:
{
cb_log (3, stack->port, "L2: L2Link Up! \n");
if (stack->ptp && stack->l2link) {
cb_log (-1, stack->port, "L2: L2Link Up! but it's already UP.. must be faulty, blocking port\n");
cb_event(EVENT_PORT_ALARM, &stack->bc[0], glob_mgr->user_data);
}
stack->l2link=1;
free_msg(msg);
return 1;
}
break;
case DL_RELEASE | INDICATION:
case DL_RELEASE | CONFIRM:
{
cb_log (3, stack->port, "L2: L2Link Down! \n");
stack->l2link=0;
free_msg(msg);
return 1;
}
break;
}
return 0;
}
static int handle_mgmt(msg_t *msg)
{
iframe_t *frm = (iframe_t*) msg->data;
struct misdn_stack *stack;
if ( (frm->addr == 0) && (frm->prim == (MGR_DELLAYER|CONFIRM)) ) {
cb_log(2, 0, "MGMT: DELLAYER|CONFIRM Addr: 0 !\n") ;
free_msg(msg);
return 1;
}
stack = find_stack_by_addr(frm->addr);
if (!stack) {
if (frm->prim == (MGR_DELLAYER|CONFIRM)) {
cb_log(2, 0, "MGMT: DELLAYER|CONFIRM Addr: %x !\n",
frm->addr) ;
free_msg(msg);
return 1;
}
return 0;
}
switch(frm->prim) {
case MGR_SHORTSTATUS | INDICATION:
case MGR_SHORTSTATUS | CONFIRM:
cb_log(5, stack->port, "MGMT: Short status dinfo %x\n",frm->dinfo);
switch (frm->dinfo) {
case SSTATUS_L1_ACTIVATED:
cb_log(3, stack->port, "MGMT: SSTATUS: L1_ACTIVATED \n");
stack->l1link=1;
break;
case SSTATUS_L1_DEACTIVATED:
cb_log(3, stack->port, "MGMT: SSTATUS: L1_DEACTIVATED \n");
stack->l1link=0;
#if 0
clear_l3(stack);
#endif
break;
case SSTATUS_L2_ESTABLISHED:
cb_log(3, stack->port, "MGMT: SSTATUS: L2_ESTABLISH \n");
stack->l2link=1;
break;
case SSTATUS_L2_RELEASED:
cb_log(3, stack->port, "MGMT: SSTATUS: L2_RELEASED \n");
stack->l2link=0;
break;
}
free_msg(msg);
return 1;
case MGR_SETSTACK | INDICATION:
cb_log(4, stack->port, "MGMT: SETSTACK|IND dinfo %x\n",frm->dinfo);
free_msg(msg);
return 1;
case MGR_DELLAYER | CONFIRM:
cb_log(4, stack->port, "MGMT: DELLAYER|CNF dinfo %x\n",frm->dinfo) ;
free_msg(msg);
return 1;
}
/*
if ( (frm->prim & 0x0f0000) == 0x0f0000) {
cb_log(5, 0, "$$$ MGMT FRAME: prim %x addr %x dinfo %x\n",frm->prim, frm->addr, frm->dinfo) ;
free_msg(msg);
return 1;
} */
return 0;
}
static msg_t *fetch_msg(int midev)
{
msg_t *msg=alloc_msg(MAX_MSG_SIZE);
int r;
if (!msg) {
cb_log(0, 0, "fetch_msg: alloc msg failed !!");
return NULL;
}
AGAIN:
r=mISDN_read(midev,msg->data,MAX_MSG_SIZE, TIMEOUT_10SEC);
msg->len=r;
if (r==0) {
free_msg(msg); /* danger, cause usually freeing in main_loop */
cb_log(6,0,"Got empty Msg..\n");
return NULL;
}
if (r<0) {
if (errno == EAGAIN) {
/*we wait for mISDN here*/
cb_log(4,0,"mISDN_read wants us to wait\n");
usleep(5000);
goto AGAIN;
}
cb_log(0,0,"mISDN_read returned :%d error:%s (%d)\n",r,strerror(errno),errno);
}
#if 0
if (!(frm->prim == (DL_DATA|INDICATION) )|| (frm->prim == (PH_DATA|INDICATION)))
cb_log(0,0,"prim: %x dinfo:%x addr:%x msglen:%d frm->len:%d\n",frm->prim, frm->dinfo, frm->addr, msg->len,frm->len );
#endif
return msg;
}
void misdn_lib_isdn_l1watcher(int port)
{
struct misdn_stack *stack;
for (stack = glob_mgr->stack_list; stack && (stack->port != port); stack = stack->next)
;
if (stack) {
cb_log(4, port, "Checking L1 State\n");
if (!stack->l1link) {
cb_log(4, port, "L1 State Down, trying to get it up again\n");
misdn_lib_get_short_status(stack);
misdn_lib_get_l1_up(stack);
misdn_lib_get_l2_up(stack);
}
}
}
/* This is a thread */
static void misdn_lib_isdn_event_catcher(void *arg)
{
struct misdn_lib *mgr = arg;
int zero_frm=0 , fff_frm=0 ;
int midev= mgr->midev;
int port=0;
while (1) {
msg_t *msg = fetch_msg(midev);
iframe_t *frm;
if (!msg) continue;
frm = (iframe_t*) msg->data;
/** When we make a call from NT2Ast we get these frames **/
if (frm->len == 0 && frm->addr == 0 && frm->dinfo == 0 && frm->prim == 0 ) {
zero_frm++;
free_msg(msg);
continue;
} else {
if (zero_frm) {
cb_log(0, port, "*** Alert: %d zero_frms caught\n", zero_frm);
zero_frm = 0 ;
}
}
/** I get this sometimes after setup_bc **/
if (frm->len == 0 && frm->dinfo == 0 && frm->prim == 0xffffffff ) {
fff_frm++;
free_msg(msg);
continue;
} else {
if (fff_frm) {
cb_log(0, port, "*** Alert: %d fff_frms caught\n", fff_frm);
fff_frm = 0 ;
}
}
manager_isdn_handler(frm, msg);
}
}
/** App Interface **/
static int te_lib_init(void)
{
char buff[1025] = "";
iframe_t *frm = (iframe_t *) buff;
int midev;
int ret;
midev = mISDN_open();
if (midev <= 0) {
return midev;
}
/* create entity for layer 3 TE-mode */
mISDN_write_frame(midev, buff, 0, MGR_NEWENTITY | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
ret = mISDN_read_frame(midev, frm, sizeof(iframe_t), 0, MGR_NEWENTITY | CONFIRM, TIMEOUT_1SEC);
entity = frm->dinfo & 0xffff;
if (ret < mISDN_HEADER_LEN || !entity) {
fprintf(stderr, "cannot request MGR_NEWENTITY from mISDN: %s\n", strerror(errno));
mISDN_close(midev);
return -1;
}
return midev;
}
void te_lib_destroy(int midev)
{
char buf[1024];
mISDN_write_frame(midev, buf, 0, MGR_DELENTITY | REQUEST, entity, 0, NULL, TIMEOUT_1SEC);
cb_log(4, 0, "Entity deleted\n");
mISDN_close(midev);
cb_log(4, 0, "midev closed\n");
}
struct misdn_bchannel *manager_find_bc_by_pid(int pid)
{
struct misdn_stack *stack;
int i;
for (stack = glob_mgr->stack_list; stack; stack = stack->next) {
for (i = 0; i <= stack->b_num; i++) {
if (stack->bc[i].in_use && stack->bc[i].pid == pid) {
return &stack->bc[i];
}
}
}
return NULL;
}
static int test_inuse(struct misdn_bchannel *bc)
{
struct timeval now;
if (!bc->in_use) {
gettimeofday(&now, NULL);
if (bc->last_used.tv_sec == now.tv_sec
&& misdn_lib_port_is_pri(bc->port)) {
cb_log(2, bc->port, "channel with stid:%x for one second still in use! (n:%d lu:%d)\n",
bc->b_stid, (int) now.tv_sec, (int) bc->last_used.tv_sec);
return 1;
}
cb_log(3,bc->port, "channel with stid:%x not in use!\n", bc->b_stid);
return 0;
}
cb_log(2,bc->port, "channel with stid:%x in use!\n", bc->b_stid);
return 1;
}
static void prepare_bc(struct misdn_bchannel*bc, int channel)
{
bc->channel = channel;
bc->channel_preselected = channel?1:0;
bc->need_disconnect=1;
bc->need_release=1;
bc->need_release_complete=1;
bc->cause = AST_CAUSE_NORMAL_CLEARING;
if (++mypid>5000) mypid=1;
bc->pid=mypid;
bc->in_use = 1;
}
struct misdn_bchannel *misdn_lib_get_free_bc(int port, int channel, int inout, int dec)
{
struct misdn_stack *stack;
int i;
int maxnum;
if (channel < 0 || channel > MAX_BCHANS) {
cb_log(0, port, "Requested channel out of bounds (%d)\n", channel);
return NULL;
}
/* Find the port stack structure */
stack = find_stack_by_port(port);
if (!stack) {
cb_log(0, port, "Port is not configured (%d)\n", port);
return NULL;
}
if (stack->blocked) {
cb_log(0, port, "Port is blocked\n");
return NULL;
}
pthread_mutex_lock(&stack->st_lock);
if (channel > 0) {
if (channel <= stack->b_num) {
for (i = 0; i < stack->b_num; i++) {
if (stack->bc[i].channel == channel) {
if (test_inuse(&stack->bc[i])) {
pthread_mutex_unlock(&stack->st_lock);
cb_log(0, port, "Requested channel:%d on port:%d is already in use\n", channel, port);
return NULL;
} else {
prepare_bc(&stack->bc[i], channel);
pthread_mutex_unlock(&stack->st_lock);
return &stack->bc[i];
}
}
}
} else {
pthread_mutex_unlock(&stack->st_lock);
cb_log(0, port, "Requested channel:%d is out of bounds on port:%d\n", channel, port);
return NULL;
}
}
/* Note: channel == 0 here */
maxnum = (inout && !stack->pri && !stack->ptp) ? stack->b_num + 1 : stack->b_num;
if (dec) {
for (i = maxnum - 1; i >= 0; --i) {
if (!test_inuse(&stack->bc[i])) {
/* 3. channel on bri means CW*/
if (!stack->pri && i == stack->b_num) {
stack->bc[i].cw = 1;
}
prepare_bc(&stack->bc[i], channel);
stack->bc[i].dec = 1;
pthread_mutex_unlock(&stack->st_lock);
return &stack->bc[i];
}
}
} else {
for (i = 0; i < maxnum; ++i) {
if (!test_inuse(&stack->bc[i])) {
/* 3. channel on bri means CW */
if (!stack->pri && i == stack->b_num) {
stack->bc[i].cw = 1;
}
prepare_bc(&stack->bc[i], channel);
pthread_mutex_unlock(&stack->st_lock);
return &stack->bc[i];
}
}
}
pthread_mutex_unlock(&stack->st_lock);
cb_log(1, port, "There is no free channel on port (%d)\n", port);
return NULL;
}
#if defined(AST_MISDN_ENHANCEMENTS)
/*!
* \brief Allocate a B channel struct from the REGISTER pool
*
* \param port Logical port number
*
* \retval B channel struct on success.
* \retval NULL on error.
*/
struct misdn_bchannel *misdn_lib_get_register_bc(int port)
{
struct misdn_stack *stack;
struct misdn_bchannel *bc;
unsigned index;
/* Find the port stack structure */
stack = find_stack_by_port(port);
if (!stack) {
cb_log(0, port, "Port is not configured (%d)\n", port);
return NULL;
}
if (stack->blocked) {
cb_log(0, port, "Port is blocked\n");
return NULL;
}
pthread_mutex_lock(&stack->st_lock);
for (index = MAX_BCHANS + 1; index < ARRAY_LEN(stack->bc); ++index) {
bc = &stack->bc[index];
if (!test_inuse(bc)) {
prepare_bc(bc, 0);
bc->need_disconnect = 0;
bc->need_release = 0;
pthread_mutex_unlock(&stack->st_lock);
return bc;
}
}
pthread_mutex_unlock(&stack->st_lock);
cb_log(1, port, "There is no free REGISTER link on port (%d)\n", port);
return NULL;
}
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
/*!
* \internal
* \brief Convert the facility function enum value into a string.
*
* \return String version of the enum value
*/
static const char *fac2str(enum FacFunction facility)
{
static const struct {
enum FacFunction facility;
char *name;
} arr[] = {
/* *INDENT-OFF* */
{ Fac_None, "Fac_None" },
#if defined(AST_MISDN_ENHANCEMENTS)
{ Fac_ERROR, "Fac_ERROR" },
{ Fac_RESULT, "Fac_RESULT" },
{ Fac_REJECT, "Fac_REJECT" },
{ Fac_ActivationDiversion, "Fac_ActivationDiversion" },
{ Fac_DeactivationDiversion, "Fac_DeactivationDiversion" },
{ Fac_ActivationStatusNotificationDiv, "Fac_ActivationStatusNotificationDiv" },
{ Fac_DeactivationStatusNotificationDiv, "Fac_DeactivationStatusNotificationDiv" },
{ Fac_InterrogationDiversion, "Fac_InterrogationDiversion" },
{ Fac_DiversionInformation, "Fac_DiversionInformation" },
{ Fac_CallDeflection, "Fac_CallDeflection" },
{ Fac_CallRerouteing, "Fac_CallRerouteing" },
{ Fac_DivertingLegInformation2, "Fac_DivertingLegInformation2" },
{ Fac_InterrogateServedUserNumbers, "Fac_InterrogateServedUserNumbers" },
{ Fac_DivertingLegInformation1, "Fac_DivertingLegInformation1" },
{ Fac_DivertingLegInformation3, "Fac_DivertingLegInformation3" },
{ Fac_EctExecute, "Fac_EctExecute" },
{ Fac_ExplicitEctExecute, "Fac_ExplicitEctExecute" },
{ Fac_RequestSubaddress, "Fac_RequestSubaddress" },
{ Fac_SubaddressTransfer, "Fac_SubaddressTransfer" },
{ Fac_EctLinkIdRequest, "Fac_EctLinkIdRequest" },
{ Fac_EctInform, "Fac_EctInform" },
{ Fac_EctLoopTest, "Fac_EctLoopTest" },
{ Fac_ChargingRequest, "Fac_ChargingRequest" },
{ Fac_AOCSCurrency, "Fac_AOCSCurrency" },
{ Fac_AOCSSpecialArr, "Fac_AOCSSpecialArr" },
{ Fac_AOCDCurrency, "Fac_AOCDCurrency" },
{ Fac_AOCDChargingUnit, "Fac_AOCDChargingUnit" },
{ Fac_AOCECurrency, "Fac_AOCECurrency" },
{ Fac_AOCEChargingUnit, "Fac_AOCEChargingUnit" },
{ Fac_StatusRequest, "Fac_StatusRequest" },
{ Fac_CallInfoRetain, "Fac_CallInfoRetain" },
{ Fac_EraseCallLinkageID, "Fac_EraseCallLinkageID" },
{ Fac_CCBSDeactivate, "Fac_CCBSDeactivate" },
{ Fac_CCBSErase, "Fac_CCBSErase" },
{ Fac_CCBSRemoteUserFree, "Fac_CCBSRemoteUserFree" },
{ Fac_CCBSCall, "Fac_CCBSCall" },
{ Fac_CCBSStatusRequest, "Fac_CCBSStatusRequest" },
{ Fac_CCBSBFree, "Fac_CCBSBFree" },
{ Fac_CCBSStopAlerting, "Fac_CCBSStopAlerting" },
{ Fac_CCBSRequest, "Fac_CCBSRequest" },
{ Fac_CCBSInterrogate, "Fac_CCBSInterrogate" },
{ Fac_CCNRRequest, "Fac_CCNRRequest" },
{ Fac_CCNRInterrogate, "Fac_CCNRInterrogate" },
{ Fac_CCBS_T_Call, "Fac_CCBS_T_Call" },
{ Fac_CCBS_T_Suspend, "Fac_CCBS_T_Suspend" },
{ Fac_CCBS_T_Resume, "Fac_CCBS_T_Resume" },
{ Fac_CCBS_T_RemoteUserFree, "Fac_CCBS_T_RemoteUserFree" },
{ Fac_CCBS_T_Available, "Fac_CCBS_T_Available" },
{ Fac_CCBS_T_Request, "Fac_CCBS_T_Request" },
{ Fac_CCNR_T_Request, "Fac_CCNR_T_Request" },
#else
{ Fac_CFActivate, "Fac_CFActivate" },
{ Fac_CFDeactivate, "Fac_CFDeactivate" },
{ Fac_CD, "Fac_CD" },
{ Fac_AOCDCurrency, "Fac_AOCDCurrency" },
{ Fac_AOCDChargingUnit, "Fac_AOCDChargingUnit" },
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
/* *INDENT-ON* */
};
unsigned index;
for (index = 0; index < ARRAY_LEN(arr); ++index) {
if (arr[index].facility == facility) {
return arr[index].name;
}
}
return "unknown";
}
void misdn_lib_log_ies(struct misdn_bchannel *bc)
{
struct misdn_stack *stack;
if (!bc) return;
stack = get_stack_by_bc(bc);
if (!stack) return;
cb_log(2, stack->port,
" --> channel:%d mode:%s cause:%d ocause:%d\n",
bc->channel,
stack->nt ? "NT" : "TE",
bc->cause,
bc->out_cause);
cb_log(2, stack->port,
" --> info_dad:%s dialed numtype:%d plan:%d\n",
bc->info_dad,
bc->dialed.number_type,
bc->dialed.number_plan);
cb_log(2, stack->port,
" --> caller:\"%s\" <%s> type:%d plan:%d pres:%d screen:%d\n",
bc->caller.name,
bc->caller.number,
bc->caller.number_type,
bc->caller.number_plan,
bc->caller.presentation,
bc->caller.screening);
cb_log(2, stack->port,
" --> redirecting-from:\"%s\" <%s> type:%d plan:%d pres:%d screen:%d\n",
bc->redirecting.from.name,
bc->redirecting.from.number,
bc->redirecting.from.number_type,
bc->redirecting.from.number_plan,
bc->redirecting.from.presentation,
bc->redirecting.from.screening);
cb_log(2, stack->port,
" --> redirecting-to:\"%s\" <%s> type:%d plan:%d pres:%d screen:%d\n",
bc->redirecting.to.name,
bc->redirecting.to.number,
bc->redirecting.to.number_type,
bc->redirecting.to.number_plan,
bc->redirecting.to.presentation,
bc->redirecting.to.screening);
cb_log(2, stack->port,
" --> redirecting reason:%d count:%d\n",
bc->redirecting.reason,
bc->redirecting.count);
cb_log(2, stack->port,
" --> connected:\"%s\" <%s> type:%d plan:%d pres:%d screen:%d\n",
bc->connected.name,
bc->connected.number,
bc->connected.number_type,
bc->connected.number_plan,
bc->connected.presentation,
bc->connected.screening);
cb_log(3, stack->port, " --> caps:%s pi:%x keypad:%s sending_complete:%d\n", bearer2str(bc->capability),bc->progress_indicator, bc->keypad, bc->sending_complete);
cb_log(4, stack->port, " --> set_pres:%d pres:%d\n", bc->set_presentation, bc->presentation);
cb_log(4, stack->port, " --> addr:%x l3id:%x b_stid:%x layer_id:%x\n", bc->addr, bc->l3_id, bc->b_stid, bc->layer_id);
cb_log(4, stack->port, " --> facility in:%s out:%s\n", fac2str(bc->fac_in.Function), fac2str(bc->fac_out.Function));
cb_log(5, stack->port, " --> urate:%d rate:%d mode:%d user1:%d\n", bc->urate, bc->rate, bc->mode,bc->user1);
cb_log(5, stack->port, " --> bc:%p h:%d sh:%d\n", bc, bc->holded, bc->stack_holder);
}
#define RETURN(a,b) {retval=a; goto b;}
static void misdn_send_lock(struct misdn_bchannel *bc)
{
//cb_log(0,bc->port,"Locking bc->pid:%d\n", bc->pid);
if (bc->send_lock)
pthread_mutex_lock(&bc->send_lock->lock);
}
static void misdn_send_unlock(struct misdn_bchannel *bc)
{
//cb_log(0,bc->port,"UnLocking bc->pid:%d\n", bc->pid);
if (bc->send_lock)
pthread_mutex_unlock(&bc->send_lock->lock);
}
int misdn_lib_send_event(struct misdn_bchannel *bc, enum event_e event )
{
msg_t *msg;
struct misdn_bchannel *bc2;
struct misdn_bchannel *held_bc;
struct misdn_stack *stack;
int retval = 0;
int channel;
int tmpcause;
int tmp_out_cause;
if (!bc)
RETURN(-1,OUT_POST_UNLOCK);
stack = get_stack_by_bc(bc);
if (!stack) {
cb_log(0,bc->port,
"SENDEVENT: no Stack for event:%s caller:\"%s\" <%s> dialed:%s \n",
isdn_get_info(msgs_g, event, 0),
bc->caller.name,
bc->caller.number,
bc->dialed.number);
RETURN(-1,OUT);
}
misdn_send_lock(bc);
cb_log(6,stack->port,"SENDEVENT: stack->nt:%d stack->upperid:%x\n",stack->nt, stack->upper_id);
if ( stack->nt && !stack->l1link) {
misdn_lib_get_l1_up(stack);
}
cb_log(1, stack->port,
"I SEND:%s caller:\"%s\" <%s> dialed:%s pid:%d\n",
isdn_get_info(msgs_g, event, 0),
bc->caller.name,
bc->caller.number,
bc->dialed.number,
bc->pid);
cb_log(4, stack->port, " --> bc_state:%s\n",bc_state2str(bc->bc_state));
misdn_lib_log_ies(bc);
switch (event) {
case EVENT_REGISTER:
case EVENT_SETUP:
if (create_process(glob_mgr->midev, bc) < 0) {
cb_log(0, stack->port, " No free channel at the moment @ send_event\n");
RETURN(-ENOCHAN,OUT);
}
break;
case EVENT_PROGRESS:
case EVENT_ALERTING:
case EVENT_PROCEEDING:
case EVENT_SETUP_ACKNOWLEDGE:
case EVENT_CONNECT:
if (!stack->nt) {
if (stack->ptp) {
setup_bc(bc);
}
break;
}
/* fall through */
case EVENT_RETRIEVE_ACKNOWLEDGE:
if (stack->nt) {
if (bc->channel <=0 ) { /* else we have the channel already */
if (find_free_chan_in_stack(stack, bc, 0, 0)<0) {
cb_log(0, stack->port, " No free channel at the moment\n");
/*FIXME: add disconnect*/
RETURN(-ENOCHAN,OUT);
}
}
/* Its that i generate channels */
}
retval=setup_bc(bc);
if (retval == -EINVAL) {
cb_log(0,bc->port,"send_event: setup_bc failed\n");
}
if (misdn_cap_is_speech(bc->capability)) {
if ((event==EVENT_CONNECT)||(event==EVENT_RETRIEVE_ACKNOWLEDGE)) {
if ( *bc->crypt_key ) {
cb_log(4, stack->port,
" --> ENABLING BLOWFISH channel:%d caller%d:\"%s\" <%s> dialed%d:%s\n",
bc->channel,
bc->caller.number_type,
bc->caller.name,
bc->caller.number,
bc->dialed.number_type,
bc->dialed.number);
manager_ph_control_block(bc, BF_ENABLE_KEY, bc->crypt_key, strlen(bc->crypt_key) );
}
if (!bc->nodsp) manager_ph_control(bc, DTMF_TONE_START, 0);
manager_ec_enable(bc);
if (bc->txgain != 0) {
cb_log(4, stack->port, "--> Changing txgain to %d\n", bc->txgain);
manager_ph_control(bc, VOL_CHANGE_TX, bc->txgain);
}
if ( bc->rxgain != 0 ) {
cb_log(4, stack->port, "--> Changing rxgain to %d\n", bc->rxgain);
manager_ph_control(bc, VOL_CHANGE_RX, bc->rxgain);
}
}
}
break;
case EVENT_HOLD_ACKNOWLEDGE:
held_bc = malloc(sizeof(struct misdn_bchannel));
if (!held_bc) {
cb_log(0, bc->port, "Could not allocate held_bc!!!\n");
RETURN(-1,OUT);
}
/* backup the bc and put it in storage */
*held_bc = *bc;
held_bc->holded = 1;
held_bc->channel = 0;/* A held call does not have a channel anymore. */
held_bc->channel_preselected = 0;
held_bc->channel_found = 0;
bc_state_change(held_bc, BCHAN_CLEANED);
stack_holder_add(stack, held_bc);
/* kill the bridge and clean the real b-channel record */
if (stack->nt) {
if (bc->bc_state == BCHAN_BRIDGED) {
misdn_split_conf(bc,bc->conf_id);
bc2 = find_bc_by_confid(bc->conf_id);
if (!bc2) {
cb_log(0,bc->port,"We have no second bc in bridge???\n");
} else {
misdn_split_conf(bc2,bc->conf_id);
}
}
channel = bc->channel;
empty_bc(bc);
clean_up_bc(bc);
if (channel>0)
empty_chan_in_stack(stack,channel);
bc->in_use=0;
}
break;
/* finishing the channel eh ? */
case EVENT_DISCONNECT:
if (!bc->need_disconnect) {
cb_log(0, bc->port, " --> we have already sent DISCONNECT\n");
RETURN(-1,OUT);
}
/* IE cause is mandatory for DISCONNECT, but optional for the answers to DISCONNECT.
* We must initialize cause, so it is later correctly indicated to ast_channel
* in case the answer does not include one!
*/
bc->cause = bc->out_cause;
bc->need_disconnect=0;
break;
case EVENT_RELEASE:
if (!bc->need_release) {
cb_log(0, bc->port, " --> we have already sent RELEASE\n");
RETURN(-1,OUT);
}
bc->need_disconnect=0;
bc->need_release=0;
break;
case EVENT_RELEASE_COMPLETE:
if (!bc->need_release_complete) {
cb_log(0, bc->port, " --> we have already sent RELEASE_COMPLETE\n");
RETURN(-1,OUT);
}
bc->need_disconnect=0;
bc->need_release=0;
bc->need_release_complete=0;
if (!stack->nt) {
/* create cleanup in TE */
channel = bc->channel;
tmpcause = bc->cause;
tmp_out_cause = bc->out_cause;
empty_bc(bc);
bc->cause=tmpcause;
bc->out_cause=tmp_out_cause;
clean_up_bc(bc);
if (channel>0)
empty_chan_in_stack(stack,channel);
bc->in_use=0;
}
break;
case EVENT_CONNECT_ACKNOWLEDGE:
if ( bc->nt || misdn_cap_is_speech(bc->capability)) {
int retval=setup_bc(bc);
if (retval == -EINVAL){
cb_log(0,bc->port,"send_event: setup_bc failed\n");
}
}
if (misdn_cap_is_speech(bc->capability)) {
if ( !bc->nodsp) manager_ph_control(bc, DTMF_TONE_START, 0);
manager_ec_enable(bc);
if ( bc->txgain != 0 ) {
cb_log(4, stack->port, "--> Changing txgain to %d\n", bc->txgain);
manager_ph_control(bc, VOL_CHANGE_TX, bc->txgain);
}
if ( bc->rxgain != 0 ) {
cb_log(4, stack->port, "--> Changing rxgain to %d\n", bc->rxgain);
manager_ph_control(bc, VOL_CHANGE_RX, bc->rxgain);
}
}
break;
default:
break;
}
/* Later we should think about sending bchannel data directly to misdn. */
msg = isdn_msg_build_event(msgs_g, bc, event, stack->nt);
if (!msg) {
/*
* The message was not built.
*
* NOTE: The only time that the message will fail to build
* is because the requested FACILITY message is not supported.
* A failed malloc() results in exit() being called.
*/
RETURN(-1, OUT);
} else {
msg_queue_tail(&stack->downqueue, msg);
sem_post(&glob_mgr->new_msg);
}
OUT:
misdn_send_unlock(bc);
OUT_POST_UNLOCK:
return retval;
}
static int handle_err(msg_t *msg)
{
iframe_t *frm = (iframe_t*) msg->data;
if (!frm->addr) {
static int cnt=0;
if (!cnt)
cb_log(0,0,"mISDN Msg without Address pr:%x dinfo:%x\n",frm->prim,frm->dinfo);
cnt++;
if (cnt>100) {
cb_log(0,0,"mISDN Msg without Address pr:%x dinfo:%x (already more than 100 of them)\n",frm->prim,frm->dinfo);
cnt=0;
}
free_msg(msg);
return 1;
}
switch (frm->prim) {
case MGR_SETSTACK|INDICATION:
return handle_bchan(msg);
break;
case MGR_SETSTACK|CONFIRM:
case MGR_CLEARSTACK|CONFIRM:
free_msg(msg) ;
return 1;
break;
case DL_DATA|CONFIRM:
cb_log(4,0,"DL_DATA|CONFIRM\n");
free_msg(msg);
return 1;
case PH_CONTROL|CONFIRM:
cb_log(4,0,"PH_CONTROL|CONFIRM\n");
free_msg(msg);
return 1;
case DL_DATA|INDICATION:
{
int port=(frm->addr&MASTER_ID_MASK) >> 8;
int channel=(frm->addr&CHILD_ID_MASK) >> 16;
/*we flush the read buffer here*/
cb_log(9,0,"BCHAN DATA without BC: addr:%x port:%d channel:%d\n",frm->addr, port,channel);
free_msg(msg);
return 1;
}
}
return 0;
}
int manager_isdn_handler(iframe_t *frm ,msg_t *msg)
{
if (frm->dinfo==0xffffffff && frm->prim==(PH_DATA|CONFIRM)) {
cb_log(0,0,"SERIOUS BUG, dinfo == 0xffffffff, prim == PH_DATA | CONFIRM !!!!\n");
}
/* Timer primitives must be handled first, because the frm->addr is a different
* "address space" than the stack/instance address of other Lx primitives.
*/
if (handle_timers(msg)) {
return 0;
}
if ( ((frm->addr | ISDN_PID_BCHANNEL_BIT )>> 28 ) == 0x5) {
static int unhandled_bmsg_count=1000;
if (handle_bchan(msg)) {
return 0 ;
}
if (unhandled_bmsg_count==1000) {
cb_log(0, 0, "received 1k Unhandled Bchannel Messages: prim %x len %d from addr %x, dinfo %x on this port.\n",frm->prim, frm->len, frm->addr, frm->dinfo);
unhandled_bmsg_count=0;
}
unhandled_bmsg_count++;
free_msg(msg);
return 0;
}
#ifdef RECV_FRM_SYSLOG_DEBUG
syslog(LOG_NOTICE,"mISDN recv: ADDR:%x PRIM:%x DINFO:%x\n", frm->addr, frm->prim, frm->dinfo);
#endif
if (handle_mgmt(msg))
return 0 ;
if (handle_l2(msg))
return 0 ;
/* Its important to handle l1 AFTER l2 */
if (handle_l1(msg))
return 0 ;
if (handle_frm_nt(msg)) {
return 0;
}
if (handle_frm_te(msg)) {
return 0;
}
if (handle_err(msg)) {
return 0 ;
}
cb_log(0, 0, "Unhandled Message: prim %x len %d from addr %x, dinfo %x on this port.\n",frm->prim, frm->len, frm->addr, frm->dinfo);
free_msg(msg);
return 0;
}
int misdn_lib_get_port_info(int port)
{
msg_t *msg=alloc_msg(MAX_MSG_SIZE);
iframe_t *frm;
struct misdn_stack *stack=find_stack_by_port(port);
if (!msg) {
cb_log(0, port, "misdn_lib_get_port_info: alloc_msg failed!\n");
return -1;
}
frm=(iframe_t*)msg->data;
if (!stack ) {
cb_log(0, port, "There is no Stack for this port.\n");
return -1;
}
/* activate bchannel */
frm->prim = CC_STATUS_ENQUIRY | REQUEST;
frm->addr = stack->upper_id| FLG_MSG_DOWN;
frm->dinfo = 0;
frm->len = 0;
msg_queue_tail(&glob_mgr->activatequeue, msg);
sem_post(&glob_mgr->new_msg);
return 0;
}
int misdn_lib_pid_restart(int pid)
{
struct misdn_bchannel *bc=manager_find_bc_by_pid(pid);
if (bc) {
manager_clean_bc(bc);
}
return 0;
}
/*Sends Restart message for every bchannel*/
int misdn_lib_send_restart(int port, int channel)
{
struct misdn_stack *stack=find_stack_by_port(port);
struct misdn_bchannel dummybc;
/*default is all channels*/
cb_log(0, port, "Sending Restarts on this port.\n");
misdn_make_dummy(&dummybc, stack->port, MISDN_ID_GLOBAL, stack->nt, 0);
/*default is all channels*/
if (channel <0) {
dummybc.channel=-1;
cb_log(0, port, "Restarting and all Interfaces\n");
misdn_lib_send_event(&dummybc, EVENT_RESTART);
return 0;
}
/*if a channel is specified we restart only this one*/
if (channel >0) {
int cnt;
dummybc.channel=channel;
cb_log(0, port, "Restarting and cleaning channel %d\n",channel);
misdn_lib_send_event(&dummybc, EVENT_RESTART);
/* clean up chan in stack, to be sure we don't think it's
* in use anymore */
for (cnt=0; cnt<=stack->b_num; cnt++) {
if (stack->bc[cnt].in_use && stack->bc[cnt].channel == channel) {
empty_bc(&stack->bc[cnt]);
clean_up_bc(&stack->bc[cnt]);
stack->bc[cnt].in_use=0;
}
}
}
return 0;
}
/*reinitializes the L2/L3*/
int misdn_lib_port_restart(int port)
{
struct misdn_stack *stack=find_stack_by_port(port);
cb_log(0, port, "Restarting this port.\n");
if (stack) {
cb_log(0, port, "Stack:%p\n",stack);
clear_l3(stack);
{
msg_t *msg=alloc_msg(MAX_MSG_SIZE);
iframe_t *frm;
if (!msg) {
cb_log(0, port, "port_restart: alloc_msg failed\n");
return -1;
}
frm=(iframe_t*)msg->data;
/* we must activate if we are deactivated */
/* activate bchannel */
frm->prim = DL_RELEASE | REQUEST;
frm->addr = stack->upper_id | FLG_MSG_DOWN;
frm->dinfo = 0;
frm->len = 0;
msg_queue_tail(&glob_mgr->activatequeue, msg);
sem_post(&glob_mgr->new_msg);
}
if (stack->nt)
misdn_lib_reinit_nt_stack(stack->port);
}
return 0;
}
static sem_t handler_started;
/* This is a thread */
static void manager_event_handler(void *arg)
{
sem_post(&handler_started);
while (1) {
struct misdn_stack *stack;
msg_t *msg;
/** wait for events **/
sem_wait(&glob_mgr->new_msg);
for (msg=msg_dequeue(&glob_mgr->activatequeue);
msg;
msg=msg_dequeue(&glob_mgr->activatequeue)
)
{
iframe_t *frm = (iframe_t*) msg->data ;
switch ( frm->prim) {
case MGR_SETSTACK | REQUEST :
free_msg(msg);
break;
default:
mISDN_write(glob_mgr->midev, frm, mISDN_HEADER_LEN+frm->len, TIMEOUT_1SEC);
free_msg(msg);
}
}
for (stack=glob_mgr->stack_list;
stack;
stack=stack->next ) {
/* Here we should check if we really want to
send all the messages we've queued, lets
assume we've queued a Disconnect, but
received it already from the other side!*/
while ( (msg=msg_dequeue(&stack->downqueue)) ) {
if (stack->nt ) {
pthread_mutex_lock(&stack->nstlock);
if (stack->nst.manager_l3(&stack->nst, msg))
cb_log(0, stack->port, "Error@ Sending Message in NT-Stack.\n");
pthread_mutex_unlock(&stack->nstlock);
} else {
iframe_t *frm = (iframe_t *)msg->data;
struct misdn_bchannel *bc = find_bc_by_l3id(stack, frm->dinfo);
if (bc)
send_msg(glob_mgr->midev, bc, msg);
else {
struct misdn_bchannel dummybc;
misdn_make_dummy(&dummybc, stack->port, frm->dinfo, stack->nt, 0);
if (frm->dinfo == MISDN_ID_GLOBAL || frm->dinfo == MISDN_ID_DUMMY ) {
cb_log(5,0," --> GLOBAL/DUMMY\n");
} else {
/*
* We need to be able to at least answer with RELEASE_COMPLETE
* on SETUP|INDICATION errors so use a dummy bc.
*/
cb_log(0,0,"No bc for Message. Using dummy_bc\n");
}
send_msg(glob_mgr->midev, &dummybc, msg);
}
}
}
}
}
}
int misdn_lib_maxports_get(void)
{
/* BE AWARE WE HAVE NO cb_log() HERE! */
int i = mISDN_open();
int max=0;
if (i<0)
return -1;
max = mISDN_get_stack_count(i);
mISDN_close(i);
return max;
}
void misdn_lib_nt_keepcalls( int kc)
{
#ifdef FEATURE_NET_KEEPCALLS
if (kc) {
struct misdn_stack *stack=get_misdn_stack();
for ( ; stack; stack=stack->next) {
stack->nst.feature |= FEATURE_NET_KEEPCALLS;
}
}
#endif
}
void misdn_lib_nt_debug_init( int flags, char *file )
{
static int init=0;
char *f;
if (!flags)
f=NULL;
else
f=file;
if (!init) {
debug_init( flags , f, f, f);
init=1;
} else {
debug_close();
debug_init( flags , f, f, f);
}
}
int misdn_lib_init(char *portlist, struct misdn_lib_iface *iface, void *user_data)
{
struct misdn_lib *mgr;
char *tok, *tokb;
char plist[1024];
int midev;
int port_count=0;
cb_log = iface->cb_log;
cb_event = iface->cb_event;
cb_jb_empty = iface->cb_jb_empty;
if (!portlist || (*portlist == 0)) {
return 1;
}
mgr = calloc(1, sizeof(*mgr));
if (!mgr) {
return 1;
}
glob_mgr = mgr;
msg_init();
misdn_lib_nt_debug_init(0,NULL);
init_flip_bits();
strncpy(plist, portlist, 1024);
plist[1023] = 0;
memcpy(tone_425_flip,tone_425,TONE_425_SIZE);
flip_buf_bits(tone_425_flip,TONE_425_SIZE);
memcpy(tone_silence_flip,tone_SILENCE,TONE_SILENCE_SIZE);
flip_buf_bits(tone_silence_flip,TONE_SILENCE_SIZE);
midev=te_lib_init();
if (midev <= 0) {
free(glob_mgr);
glob_mgr = NULL;
return 1;
}
mgr->midev=midev;
port_count=mISDN_get_stack_count(midev);
msg_queue_init(&mgr->activatequeue);
if (sem_init(&mgr->new_msg, 1, 0)<0)
sem_init(&mgr->new_msg, 0, 0);
for (tok=strtok_r(plist," ,",&tokb );
tok;
tok=strtok_r(NULL," ,",&tokb)) {
int port = atoi(tok);
struct misdn_stack *stack;
struct misdn_stack *help;
int ptp=0;
int i;
int r;
if (strstr(tok, "ptp"))
ptp=1;
if (port > port_count) {
cb_log(0, port, "Couldn't Initialize this port since we have only %d ports\n", port_count);
continue;
}
stack = stack_init(midev, port, ptp);
if (!stack) {
cb_log(0, port, "stack_init() failed for this port\n");
continue;
}
/* Initialize the B channel records for real B channels. */
for (i = 0; i <= stack->b_num; i++) {
r = init_bc(stack, &stack->bc[i], stack->midev, port, i);
if (r < 0) {
cb_log(0, port, "Got Err @ init_bc :%d\n", r);
break;
}
}
if (i <= stack->b_num) {
stack_destroy(stack);
free(stack);
continue;
}
#if defined(AST_MISDN_ENHANCEMENTS)
/* Initialize the B channel records for REGISTER signaling links. */
for (i = MAX_BCHANS + 1; i < ARRAY_LEN(stack->bc); ++i) {
r = init_bc(stack, &stack->bc[i], stack->midev, port, i);
if (r < 0) {
cb_log(0, port, "Got Err @ init_bc :%d\n", r);
break;
}
stack->bc[i].is_register_pool = 1;
}
if (i < ARRAY_LEN(stack->bc)) {
stack_destroy(stack);
free(stack);
continue;
}
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
/* Add the new stack to the end of the list */
help = mgr->stack_list;
if (!help) {
mgr->stack_list = stack;
} else {
while (help->next) {
help = help->next;
}
help->next = stack;
}
}
if (!mgr->stack_list) {
/* no stacks were successfully initialized !? */
te_lib_destroy(midev);
free(glob_mgr);
glob_mgr = NULL;
return 1;
}
if (sem_init(&handler_started, 1, 0)<0)
sem_init(&handler_started, 0, 0);
cb_log(8, 0, "Starting Event Handler\n");
pthread_create( &mgr->event_handler_thread, NULL,(void*)manager_event_handler, mgr);
sem_wait(&handler_started) ;
cb_log(8, 0, "Starting Event Catcher\n");
pthread_create( &mgr->event_thread, NULL, (void*)misdn_lib_isdn_event_catcher, mgr);
cb_log(8, 0, "Event Catcher started\n");
global_state= MISDN_INITIALIZED;
return (mgr == NULL);
}
void misdn_lib_destroy(void)
{
struct misdn_stack *help;
int i;
for ( help=glob_mgr->stack_list; help; help=help->next ) {
for(i=0;i<=help->b_num; i++) {
char buf[1024];
mISDN_write_frame(help->midev, buf, help->bc[i].addr, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
help->bc[i].addr = 0;
}
cb_log (1, help->port, "Destroying this port.\n");
stack_destroy(help);
}
if (global_state == MISDN_INITIALIZED) {
cb_log(4, 0, "Killing Handler Thread\n");
if ( pthread_cancel(glob_mgr->event_handler_thread) == 0 ) {
cb_log(4, 0, "Joining Handler Thread\n");
pthread_join(glob_mgr->event_handler_thread, NULL);
}
cb_log(4, 0, "Killing Main Thread\n");
if ( pthread_cancel(glob_mgr->event_thread) == 0 ) {
cb_log(4, 0, "Joining Main Thread\n");
pthread_join(glob_mgr->event_thread, NULL);
}
}
cb_log(1, 0, "Closing mISDN device\n");
te_lib_destroy(glob_mgr->midev);
while ((help = glob_mgr->stack_list)) {
glob_mgr->stack_list = help->next;
free(help);
}
free(glob_mgr);
glob_mgr = NULL;
}
char *manager_isdn_get_info(enum event_e event)
{
return isdn_get_info(msgs_g , event, 0);
}
void manager_bchannel_activate(struct misdn_bchannel *bc)
{
char buf[128];
struct misdn_stack *stack=get_stack_by_bc(bc);
if (!stack) {
cb_log(0, bc->port, "bchannel_activate: Stack not found !");
return ;
}
/* we must activate if we are deactivated */
clear_ibuffer(bc->astbuf);
cb_log(5, stack->port, "$$$ Bchan Activated addr %x\n", bc->addr);
mISDN_write_frame(stack->midev, buf, bc->addr | FLG_MSG_DOWN, DL_ESTABLISH | REQUEST, 0,0, NULL, TIMEOUT_1SEC);
return ;
}
void manager_bchannel_deactivate(struct misdn_bchannel * bc)
{
struct misdn_stack *stack=get_stack_by_bc(bc);
char buf[128];
switch (bc->bc_state) {
case BCHAN_ACTIVATED:
break;
case BCHAN_BRIDGED:
misdn_split_conf(bc,bc->conf_id);
break;
default:
cb_log( 4, bc->port,"bchan_deactivate: called but not activated\n");
return ;
}
cb_log(5, stack->port, "$$$ Bchan deActivated addr %x\n", bc->addr);
bc->generate_tone=0;
mISDN_write_frame(stack->midev, buf, bc->addr | FLG_MSG_DOWN, DL_RELEASE|REQUEST,0,0,NULL, TIMEOUT_1SEC);
clear_ibuffer(bc->astbuf);
bc_state_change(bc,BCHAN_RELEASE);
return;
}
int misdn_lib_tx2misdn_frm(struct misdn_bchannel *bc, void *data, int len)
{
struct misdn_stack *stack=get_stack_by_bc(bc);
char buf[4096 + mISDN_HEADER_LEN];
iframe_t *frm = (iframe_t*)buf;
switch (bc->bc_state) {
case BCHAN_ACTIVATED:
case BCHAN_BRIDGED:
break;
default:
cb_log(3, bc->port, "BC not yet activated (state:%s)\n",bc_state2str(bc->bc_state));
return -1;
}
frm->prim = DL_DATA|REQUEST;
frm->dinfo = 0;
frm->addr = bc->addr | FLG_MSG_DOWN ;
frm->len = len;
memcpy(&buf[mISDN_HEADER_LEN], data,len);
if ( misdn_cap_is_speech(bc->capability) )
flip_buf_bits( &buf[mISDN_HEADER_LEN], len);
else
cb_log(6, stack->port, "Writing %d data bytes\n",len);
cb_log(9, stack->port, "Writing %d bytes 2 mISDN\n",len);
mISDN_write(stack->midev, buf, frm->len + mISDN_HEADER_LEN, TIMEOUT_INFINIT);
return 0;
}
/*
* send control information to the channel (dsp-module)
*/
void manager_ph_control(struct misdn_bchannel *bc, int c1, int c2)
{
unsigned char buffer[mISDN_HEADER_LEN+2*sizeof(int)];
iframe_t *ctrl = (iframe_t *)buffer; /* preload data */
unsigned int *d = (unsigned int*)&ctrl->data.p;
/*struct misdn_stack *stack=get_stack_by_bc(bc);*/
cb_log(4,bc->port,"ph_control: c1:%x c2:%x\n",c1,c2);
ctrl->prim = PH_CONTROL | REQUEST;
ctrl->addr = bc->addr | FLG_MSG_DOWN;
ctrl->dinfo = 0;
ctrl->len = sizeof(unsigned int)*2;
*d++ = c1;
*d++ = c2;
mISDN_write(glob_mgr->midev, ctrl, mISDN_HEADER_LEN+ctrl->len, TIMEOUT_1SEC);
}
/*
* allow live control of channel parameters
*/
void isdn_lib_update_rxgain (struct misdn_bchannel *bc)
{
manager_ph_control(bc, VOL_CHANGE_RX, bc->rxgain);
}
void isdn_lib_update_txgain (struct misdn_bchannel *bc)
{
manager_ph_control(bc, VOL_CHANGE_TX, bc->txgain);
}
void isdn_lib_update_ec (struct misdn_bchannel *bc)
{
#ifdef MISDN_1_2
if (*bc->pipeline)
#else
if (bc->ec_enable)
#endif
manager_ec_enable(bc);
else
manager_ec_disable(bc);
}
void isdn_lib_stop_dtmf (struct misdn_bchannel *bc)
{
manager_ph_control(bc, DTMF_TONE_STOP, 0);
}
/*
* send control information to the channel (dsp-module)
*/
void manager_ph_control_block(struct misdn_bchannel *bc, int c1, void *c2, int c2_len)
{
unsigned char buffer[mISDN_HEADER_LEN+sizeof(int)+c2_len];
iframe_t *ctrl = (iframe_t *)buffer;
unsigned int *d = (unsigned int *)&ctrl->data.p;
/*struct misdn_stack *stack=get_stack_by_bc(bc);*/
ctrl->prim = PH_CONTROL | REQUEST;
ctrl->addr = bc->addr | FLG_MSG_DOWN;
ctrl->dinfo = 0;
ctrl->len = sizeof(unsigned int) + c2_len;
*d++ = c1;
memcpy(d, c2, c2_len);
mISDN_write(glob_mgr->midev, ctrl, mISDN_HEADER_LEN+ctrl->len, TIMEOUT_1SEC);
}
void manager_clean_bc(struct misdn_bchannel *bc )
{
struct misdn_stack *stack=get_stack_by_bc(bc);
if (stack && bc->channel > 0) {
empty_chan_in_stack(stack, bc->channel);
}
empty_bc(bc);
bc->in_use=0;
cb_event(EVENT_CLEANUP, bc, NULL);
}
void stack_holder_add(struct misdn_stack *stack, struct misdn_bchannel *holder)
{
struct misdn_bchannel *help;
cb_log(4,stack->port, "*HOLDER: add %x\n",holder->l3_id);
holder->stack_holder=1;
holder->next=NULL;
if (!stack->holding) {
stack->holding = holder;
return;
}
for (help=stack->holding;
help;
help=help->next) {
if (!help->next) {
help->next=holder;
break;
}
}
}
void stack_holder_remove(struct misdn_stack *stack, struct misdn_bchannel *holder)
{
struct misdn_bchannel *h1;
if (!holder->stack_holder) return;
holder->stack_holder=0;
cb_log(4,stack->port, "*HOLDER: remove %x\n",holder->l3_id);
if (!stack || ! stack->holding) return;
if (holder == stack->holding) {
stack->holding = stack->holding->next;
return;
}
for (h1=stack->holding;
h1;
h1=h1->next) {
if (h1->next == holder) {
h1->next=h1->next->next;
return ;
}
}
}
struct misdn_bchannel *stack_holder_find(struct misdn_stack *stack, unsigned long l3id)
{
struct misdn_bchannel *help;
cb_log(4, stack->port, "*HOLDER: find %lx\n",l3id);
for (help=stack->holding;
help;
help=help->next) {
if (help->l3_id == l3id) {
cb_log(4,stack->port, "*HOLDER: found bc\n");
return help;
}
}
cb_log(4,stack->port, "*HOLDER: find nothing\n");
return NULL;
}
/*!
* \brief Find a held call's B channel record.
*
* \param port Port the call is on.
* \param l3_id mISDN Layer 3 ID of held call.
*
* \return Found bc-record or NULL.
*/
struct misdn_bchannel *misdn_lib_find_held_bc(int port, int l3_id)
{
struct misdn_bchannel *bc;
struct misdn_stack *stack;
bc = NULL;
for (stack = get_misdn_stack(); stack; stack = stack->next) {
if (stack->port == port) {
bc = stack_holder_find(stack, l3_id);
break;
}
}
return bc;
}
void misdn_lib_send_tone(struct misdn_bchannel *bc, enum tone_e tone)
{
char buf[mISDN_HEADER_LEN + 128] = "";
iframe_t *frm = (iframe_t*)buf;
switch(tone) {
case TONE_DIAL:
manager_ph_control(bc, TONE_PATT_ON, TONE_GERMAN_DIALTONE);
break;
case TONE_ALERTING:
manager_ph_control(bc, TONE_PATT_ON, TONE_GERMAN_RINGING);
break;
case TONE_HANGUP:
manager_ph_control(bc, TONE_PATT_ON, TONE_GERMAN_HANGUP);
break;
case TONE_NONE:
default:
manager_ph_control(bc, TONE_PATT_OFF, TONE_GERMAN_HANGUP);
}
frm->prim=DL_DATA|REQUEST;
frm->addr=bc->addr|FLG_MSG_DOWN;
frm->dinfo=0;
frm->len=128;
mISDN_write(glob_mgr->midev, frm, mISDN_HEADER_LEN+frm->len, TIMEOUT_1SEC);
}
void manager_ec_enable(struct misdn_bchannel *bc)
{
struct misdn_stack *stack=get_stack_by_bc(bc);
cb_log(4, stack?stack->port:0,"ec_enable\n");
if (!misdn_cap_is_speech(bc->capability)) {
cb_log(1, stack?stack->port:0, " --> no speech? cannot enable EC\n");
} else {
#ifdef MISDN_1_2
if (*bc->pipeline) {
cb_log(3, stack?stack->port:0,"Sending Control PIPELINE_CFG %s\n",bc->pipeline);
manager_ph_control_block(bc, PIPELINE_CFG, bc->pipeline, strlen(bc->pipeline) + 1);
}
#else
int ec_arr[2];
if (bc->ec_enable) {
cb_log(3, stack?stack->port:0,"Sending Control ECHOCAN_ON taps:%d\n",bc->ec_deftaps);
switch (bc->ec_deftaps) {
case 4:
case 8:
case 16:
case 32:
case 64:
case 128:
case 256:
case 512:
case 1024:
cb_log(4, stack->port, "Taps is %d\n",bc->ec_deftaps);
break;
default:
cb_log(0, stack->port, "Taps should be power of 2\n");
bc->ec_deftaps=128;
}
ec_arr[0]=bc->ec_deftaps;
ec_arr[1]=0;
manager_ph_control_block(bc, ECHOCAN_ON, ec_arr, sizeof(ec_arr));
}
#endif
}
}
void manager_ec_disable(struct misdn_bchannel *bc)
{
struct misdn_stack *stack=get_stack_by_bc(bc);
cb_log(4, stack?stack->port:0," --> ec_disable\n");
if (!misdn_cap_is_speech(bc->capability)) {
cb_log(1, stack?stack->port:0, " --> no speech? cannot disable EC\n");
return;
}
#ifdef MISDN_1_2
manager_ph_control_block(bc, PIPELINE_CFG, "", 0);
#else
if ( ! bc->ec_enable) {
cb_log(3, stack?stack->port:0, "Sending Control ECHOCAN_OFF\n");
manager_ph_control(bc, ECHOCAN_OFF, 0);
}
#endif
}
struct misdn_stack *get_misdn_stack(void)
{
return glob_mgr->stack_list;
}
void misdn_join_conf(struct misdn_bchannel *bc, int conf_id)
{
char data[16] = "";
bc_state_change(bc,BCHAN_BRIDGED);
manager_ph_control(bc, CMX_RECEIVE_OFF, 0);
manager_ph_control(bc, CMX_CONF_JOIN, conf_id);
cb_log(3,bc->port, "Joining bc:%x in conf:%d\n",bc->addr,conf_id);
misdn_lib_tx2misdn_frm(bc, data, sizeof(data) - 1);
}
void misdn_split_conf(struct misdn_bchannel *bc, int conf_id)
{
bc_state_change(bc,BCHAN_ACTIVATED);
manager_ph_control(bc, CMX_RECEIVE_ON, 0);
manager_ph_control(bc, CMX_CONF_SPLIT, conf_id);
cb_log(4,bc->port, "Splitting bc:%x in conf:%d\n",bc->addr,conf_id);
}
void misdn_lib_bridge( struct misdn_bchannel * bc1, struct misdn_bchannel *bc2)
{
int conf_id = bc1->pid + 1;
struct misdn_bchannel *bc_list[] = { bc1, bc2, NULL };
struct misdn_bchannel **bc;
cb_log(4, bc1->port, "I Send: BRIDGE from:%d to:%d\n",bc1->port,bc2->port);
for (bc=bc_list; *bc; bc++) {
(*bc)->conf_id=conf_id;
cb_log(4, (*bc)->port, " --> bc_addr:%x\n",(*bc)->addr);
switch((*bc)->bc_state) {
case BCHAN_ACTIVATED:
misdn_join_conf(*bc,conf_id);
break;
default:
bc_next_state_change(*bc,BCHAN_BRIDGED);
break;
}
}
}
void misdn_lib_split_bridge( struct misdn_bchannel * bc1, struct misdn_bchannel *bc2)
{
struct misdn_bchannel *bc_list[]={
bc1,bc2,NULL
};
struct misdn_bchannel **bc;
for (bc=bc_list; *bc; bc++) {
if ( (*bc)->bc_state == BCHAN_BRIDGED){
misdn_split_conf( *bc, (*bc)->conf_id);
} else {
cb_log( 2, (*bc)->port, "BC not bridged (state:%s) so not splitting it\n",bc_state2str((*bc)->bc_state));
}
}
}
void misdn_lib_echo(struct misdn_bchannel *bc, int onoff)
{
cb_log(3,bc->port, " --> ECHO %s\n", onoff?"ON":"OFF");
manager_ph_control(bc, onoff?CMX_ECHO_ON:CMX_ECHO_OFF, 0);
}
void misdn_lib_reinit_nt_stack(int port)
{
struct misdn_stack *stack=find_stack_by_port(port);
if (stack) {
stack->l2link=0;
stack->blocked=0;
cleanup_Isdnl3(&stack->nst);
cleanup_Isdnl2(&stack->nst);
memset(&stack->nst, 0, sizeof(net_stack_t));
memset(&stack->mgr, 0, sizeof(manager_t));
stack->mgr.nst = &stack->nst;
stack->nst.manager = &stack->mgr;
stack->nst.l3_manager = handle_event_nt;
stack->nst.device = glob_mgr->midev;
stack->nst.cardnr = port;
stack->nst.d_stid = stack->d_stid;
stack->nst.feature = FEATURE_NET_HOLD;
if (stack->ptp)
stack->nst.feature |= FEATURE_NET_PTP;
if (stack->pri)
stack->nst.feature |= FEATURE_NET_CRLEN2 | FEATURE_NET_EXTCID;
stack->nst.l1_id = stack->lower_id; /* never used */
stack->nst.l2_id = stack->upper_id;
msg_queue_init(&stack->nst.down_queue);
Isdnl2Init(&stack->nst);
Isdnl3Init(&stack->nst);
if (!stack->ptp)
misdn_lib_get_l1_up(stack);
}
}
Reference in new issue View Git Blame Copy Permalink