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First pass at implementation to be able to block and unblock zap channels for

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use.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@46366 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1.6.0
Matthew Fredrickson 19 years ago
parent 12a966cb0e
commit ead98e2b7f
1 changed files with 63 additions and 18 deletions
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81
channels/chan_zap.c
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@ -635,6 +635,10 @@ static struct zt_pvt {
unsigned int usedistinctiveringdetection:1;
unsigned int zaptrcallerid:1; /*!< should we use the callerid from incoming call on zap transfer or not */
unsigned int transfertobusy:1; /*!< allow flash-transfers to busy channels */
/* Channel state or unavilability flags */
unsigned int inservice:1;
unsigned int locallyblocked:1;
unsigned int remotelyblocked:1;
#if defined(HAVE_PRI)
unsigned int alerting:1;
unsigned int alreadyhungup:1;
@ -643,9 +647,6 @@ static struct zt_pvt {
unsigned int progress:1;
unsigned int resetting:1;
unsigned int setup_ack:1;
#endif
#if defined(HAVE_SS7)
unsigned int blocked:1;
#endif
unsigned int use_smdi:1; /* Whether to use SMDI on this channel */
struct ast_smdi_interface *smdi_iface; /* The serial port to listen for SMDI data on */
@ -7840,7 +7841,13 @@ static struct zt_pvt *mkintf(int channel, int signalling, int outsignalling, int
tmp->answeronpolarityswitch = answeronpolarityswitch;
tmp->hanguponpolarityswitch = hanguponpolarityswitch;
tmp->sendcalleridafter = sendcalleridafter;
if (!here) {
tmp->locallyblocked = tmp->remotelyblocked = 0;
if ((signalling == SIG_PRI) || (signalling == SIG_SS7))
tmp->inservice = 0;
else /* We default to in service on protocols that don't have a reset */
tmp->inservice = 1;
}
}
if (tmp && !here) {
/* nothing on the iflist */
@ -7917,6 +7924,9 @@ static inline int available(struct zt_pvt *p, int channelmatch, int groupmatch,
/* If guard time, definitely not */
if (p->guardtime && (time(NULL) < p->guardtime))
return 0;
if (p->locallyblocked || p->remotelyblocked || !p->inservice)
return 0;
/* If no owner definitely available */
if (!p->owner) {
@ -7930,9 +7940,9 @@ static inline int available(struct zt_pvt *p, int channelmatch, int groupmatch,
}
#endif
#ifdef HAVE_SS7
/* Trust PRI */
/* Trust SS7 */
if (p->ss7) {
if (p->ss7call || p->blocked)
if (p->ss7call)
return 0;
else
return 1;
@ -8312,13 +8322,23 @@ static inline void ss7_block_cics(struct zt_ss7 *linkset, int startcic, int endc
if (linkset->pvts[i] && ((linkset->pvts[i]->cic >= startcic) && (linkset->pvts[i]->cic <= endcic))) {
if (state) {
if (state[i])
linkset->pvts[i]->blocked = block;
linkset->pvts[i]->remotelyblocked = block;
} else
linkset->pvts[i]->blocked = block;
linkset->pvts[i]->remotelyblocked = block;
}
}
}
static void ss7_inservice(struct zt_ss7 *linkset, int startcic, int endcic)
{
int i;
for (i = 0; i < linkset->numchans; i++) {
if (linkset->pvts[i] && (linkset->pvts[i]->cic >= startcic) && (linkset->pvts[i]->cic <= endcic))
linkset->pvts[i]->inservice = 1;
}
}
static int ss7_reset_linkset(struct zt_ss7 *linkset)
{
int i, startcic = -1, endcic;
@ -8333,7 +8353,7 @@ static int ss7_reset_linkset(struct zt_ss7 *linkset)
continue;
} else {
endcic = linkset->pvts[i]->cic;
ast_verbose(VERBOSE_PREFIX_3 "Resetting CICs %d to %d\n", startcic, endcic);
ast_verbose("Resetting CICs %d to %d\n", startcic, endcic);
isup_grs(linkset->ss7, startcic, endcic);
if (linkset->pvts[i+1])
@ -8530,7 +8550,10 @@ static void *ss7_linkset(void *data)
break;
}
p = linkset->pvts[chanpos];
p->blocked = 0;
ast_mutex_lock(&p->lock);
p->inservice = 1;
p->remotelyblocked = 0;
ast_mutex_unlock(&p->lock);
isup_rlc(ss7, e->rsc.call);
break;
case ISUP_EVENT_GRS:
@ -8539,7 +8562,8 @@ static void *ss7_linkset(void *data)
ss7_block_cics(linkset, e->grs.startcic, e->grs.endcic, NULL, 0);
break;
case ISUP_EVENT_GRA:
ast_log(LOG_DEBUG, "Got GRA from CIC %d to %d.\n", e->gra.startcic, e->gra.endcic);
ast_verbose("Got reset acknowledgement from CIC %d to %d.\n", e->gra.startcic, e->gra.endcic);
ss7_inservice(linkset, e->gra.startcic, e->gra.endcic);
ss7_block_cics(linkset, e->gra.startcic, e->gra.endcic, e->gra.status, 1);
break;
case ISUP_EVENT_IAM:
@ -8670,7 +8694,7 @@ static void *ss7_linkset(void *data)
}
p = linkset->pvts[chanpos];
ast_log(LOG_DEBUG, "Blocking CIC %d\n", e->blo.cic);
p->blocked = 1;
p->remotelyblocked = 1;
isup_bla(linkset->ss7, e->blo.cic);
break;
case ISUP_EVENT_UBL:
@ -8681,7 +8705,7 @@ static void *ss7_linkset(void *data)
}
p = linkset->pvts[chanpos];
ast_log(LOG_DEBUG, "Unblocking CIC %d\n", e->ubl.cic);
p->blocked = 0;
p->remotelyblocked = 0;
isup_uba(linkset->ss7, e->ubl.cic);
break;
case ISUP_EVENT_CON:
@ -10078,6 +10102,7 @@ static void *pri_dchannel(void *vpri)
pri->pvts[chanpos]->owner->_softhangup |= AST_SOFTHANGUP_DEV;
}
pri->pvts[chanpos]->resetting = 0;
pri->pvts[chanpos]->inservice = 1;
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "B-channel %d/%d successfully restarted on span %d\n", pri->pvts[chanpos]->logicalspan,
pri->pvts[chanpos]->prioffset, pri->span);
@ -10751,7 +10776,6 @@ static int zap_show_channel(int fd, int argc, char **argv)
#ifdef HAVE_SS7
if (tmp->ss7) {
ast_cli(fd, "CIC: %d\n", tmp->cic);
ast_cli(fd, "Blocked: %s\n", tmp->blocked ? "yes" : "no");
}
#endif
#ifdef HAVE_PRI
@ -11362,6 +11386,7 @@ static int handle_ss7_debug(int fd, int argc, char *argv[])
static int handle_ss7_block_cic(int fd, int argc, char *argv[])
{
int linkset, cic;
int blocked = -1, i;
if (argc == 5)
linkset = atoi(argv[3]);
else
@ -11384,10 +11409,30 @@ static int handle_ss7_block_cic(int fd, int argc, char *argv[])
return RESULT_SUCCESS;
}
ast_mutex_lock(&linksets[linkset-1].lock);
isup_blo(linksets[linkset-1].ss7, cic);
ast_mutex_unlock(&linksets[linkset-1].lock);
ast_cli(fd, "Sent blocking request for linkset %d on CIC %d\n", linkset, cic);
for (i = 0; i < linksets[linkset-1].numchans; i++) {
if (linksets[linkset-1].pvts[i]->cic == cic) {
blocked = linksets[linkset-1].pvts[i]->locallyblocked;
if (!blocked) {
ast_mutex_lock(&linksets[linkset-1].pvts[i]->lock);
linksets[linkset-1].pvts[i]->locallyblocked = 1;
ast_mutex_unlock(&linksets[linkset-1].pvts[i]->lock);
ast_mutex_lock(&linksets[linkset-1].lock);
isup_blo(linksets[linkset-1].ss7, cic);
ast_mutex_unlock(&linksets[linkset-1].lock);
}
}
}
if (blocked < 0) {
ast_cli(fd, "Invalid CIC specified!\n");
return RESULT_SUCCESS;
}
if (!blocked)
ast_cli(fd, "Sent blocking request for linkset %d on CIC %d\n", linkset, cic);
else
ast_cli(fd, "CIC %d already locally blocked\n", cic);
return RESULT_SUCCESS;
}

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