Updates to add T309 to libpri. Thanks flefoll!
git-svn-id: https://origsvn.digium.com/svn/libpri/trunk@356 2fbb986a-6c06-0410-b554-c9c1f0a7f128
This commit is contained in:
Matthew Fredrickson
parent
8192b42674
commit
8c69834e21
1
pri.c
1
pri.c
@ -781,6 +781,7 @@ char *pri_dump_info_str(struct pri *pri)
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len += sprintf(buf + len, "T203 Timer: %d\n", pri->timers[PRI_TIMER_T203]);
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len += sprintf(buf + len, "T305 Timer: %d\n", pri->timers[PRI_TIMER_T305]);
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len += sprintf(buf + len, "T308 Timer: %d\n", pri->timers[PRI_TIMER_T308]);
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len += sprintf(buf + len, "T309 Timer: %d\n", pri->timers[PRI_TIMER_T309]);
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len += sprintf(buf + len, "T313 Timer: %d\n", pri->timers[PRI_TIMER_T313]);
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len += sprintf(buf + len, "N200 Counter: %d\n", pri->timers[PRI_TIMER_N200]);
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@ -286,4 +286,6 @@ extern void q931_dump(struct pri *pri, q931_h *h, int len, int txrx);
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extern void __q931_destroycall(struct pri *pri, q931_call *c);
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extern void q931_dl_indication(struct pri *pri, int event);
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#endif
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6
q921.c
6
q921.c
@ -667,6 +667,9 @@ static pri_event *q921_dchannel_up(struct pri *pri)
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/* Start the T203 timer */
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pri->t203_timer = pri_schedule_event(pri, pri->timers[PRI_TIMER_T203], t203_expire, pri);
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/* Notify Layer 3 */
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q931_dl_indication(pri, PRI_EVENT_DCHAN_UP);
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/* Report event that D-Channel is now up */
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pri->ev.gen.e = PRI_EVENT_DCHAN_UP;
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return &pri->ev;
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@ -677,6 +680,9 @@ static pri_event *q921_dchannel_down(struct pri *pri)
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/* Reset counters, reset sabme timer etc */
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q921_reset(pri);
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/* Notify Layer 3 */
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q931_dl_indication(pri, PRI_EVENT_DCHAN_DOWN);
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/* Report event that D-Channel is now up */
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pri->ev.gen.e = PRI_EVENT_DCHAN_DOWN;
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return &pri->ev;
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188
q931.c
188
q931.c
@ -216,6 +216,18 @@ static char *msg2str(int msg);
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#define FUNC_RECV(name) int ((name))(int full_ie, struct pri *pri, q931_call *call, int msgtype, q931_ie *ie, int len)
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#define FUNC_SEND(name) int ((name))(int full_ie, struct pri *pri, q931_call *call, int msgtype, q931_ie *ie, int len, int order)
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#if 1
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/* Update call state with transition trace. */
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#define UPDATE_OURCALLSTATE(pri,c,newstate) do {\
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if (pri->debug & (PRI_DEBUG_Q931_STATE) && c->ourcallstate != newstate) \
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pri_message(pri, DBGHEAD "call %d on channel %d enters state %d (%s)\n", DBGINFO, \
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c->cr, c->channelno, newstate, callstate2str(newstate)); \
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c->ourcallstate = newstate; \
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} while (0)
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#else
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/* Update call state with no trace. */
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#define UPDATE_OURCALLSTATE(pri,c,newstate) c->ourcallstate = newstate
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#endif
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struct ie {
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/* Maximal count of same IEs at the message (0 - any, 1..n - limited) */
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@ -2484,7 +2496,7 @@ static int restart_ack_ies[] = { Q931_CHANNEL_IDENT, Q931_RESTART_INDICATOR, -1
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static int restart_ack(struct pri *pri, q931_call *c)
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{
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c->ourcallstate = Q931_CALL_STATE_NULL;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_NULL);
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c->peercallstate = Q931_CALL_STATE_NULL;
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return send_message(pri, c, Q931_RESTART_ACKNOWLEDGE, restart_ack_ies);
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}
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@ -2555,7 +2567,7 @@ int q931_call_proceeding(struct pri *pri, q931_call *c, int channel, int info)
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}
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c->chanflags &= ~FLAG_PREFERRED;
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c->chanflags |= FLAG_EXCLUSIVE;
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c->ourcallstate = Q931_CALL_STATE_INCOMING_CALL_PROCEEDING;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_INCOMING_CALL_PROCEEDING);
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c->peercallstate = Q931_CALL_STATE_OUTGOING_CALL_PROCEEDING;
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if (info) {
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c->progloc = LOC_PRIV_NET_LOCAL_USER;
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@ -2583,7 +2595,7 @@ int q931_alerting(struct pri *pri, q931_call *c, int channel, int info)
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c->progressmask = PRI_PROG_INBAND_AVAILABLE;
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} else
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c->progressmask = 0;
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c->ourcallstate = Q931_CALL_STATE_CALL_RECEIVED;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_CALL_RECEIVED);
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c->peercallstate = Q931_CALL_STATE_CALL_DELIVERED;
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c->alive = 1;
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return send_message(pri, c, Q931_ALERTING, alerting_ies);
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@ -2607,7 +2619,7 @@ int q931_setup_ack(struct pri *pri, q931_call *c, int channel, int nonisdn)
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c->progressmask = PRI_PROG_CALLED_NOT_ISDN;
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} else
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c->progressmask = 0;
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c->ourcallstate = Q931_CALL_STATE_OVERLAP_RECEIVING;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_OVERLAP_RECEIVING);
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c->peercallstate = Q931_CALL_STATE_OVERLAP_SENDING;
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c->alive = 1;
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return send_message(pri, c, Q931_SETUP_ACKNOWLEDGE, connect_ies);
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@ -2681,10 +2693,11 @@ int q931_connect(struct pri *pri, q931_call *c, int channel, int nonisdn)
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c->progressmask = PRI_PROG_CALLED_NOT_ISDN;
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} else
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c->progressmask = 0;
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if (pri->localtype == PRI_CPE)
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c->ourcallstate = Q931_CALL_STATE_CONNECT_REQUEST;
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else
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c->ourcallstate = Q931_CALL_STATE_ACTIVE;
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if (pri->localtype == PRI_CPE) {
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_CONNECT_REQUEST);
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} else {
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_ACTIVE);
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}
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c->peercallstate = Q931_CALL_STATE_ACTIVE;
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c->alive = 1;
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/* Setup timer */
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@ -2700,7 +2713,7 @@ static int release_ies[] = { Q931_CAUSE, Q931_IE_USER_USER, -1 };
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int q931_release(struct pri *pri, q931_call *c, int cause)
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{
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c->ourcallstate = Q931_CALL_STATE_RELEASE_REQUEST;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_RELEASE_REQUEST);
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/* c->peercallstate stays the same */
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if (c->alive) {
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c->alive = 0;
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@ -2739,7 +2752,7 @@ int q931_restart(struct pri *pri, int channel)
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c->channelno = channel;
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c->chanflags &= ~FLAG_PREFERRED;
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c->chanflags |= FLAG_EXCLUSIVE;
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c->ourcallstate = Q931_CALL_STATE_RESTART;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_RESTART);
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c->peercallstate = Q931_CALL_STATE_RESTART_REQUEST;
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return send_message(pri, c, Q931_RESTART, restart_ies);
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}
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@ -2748,7 +2761,7 @@ static int disconnect_ies[] = { Q931_CAUSE, Q931_IE_USER_USER, -1 };
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int q931_disconnect(struct pri *pri, q931_call *c, int cause)
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{
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c->ourcallstate = Q931_CALL_STATE_DISCONNECT_REQUEST;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_DISCONNECT_REQUEST);
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c->peercallstate = Q931_CALL_STATE_DISCONNECT_INDICATION;
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if (c->alive) {
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c->alive = 0;
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@ -2864,7 +2877,7 @@ int q931_setup(struct pri *pri, q931_call *c, struct pri_sr *req)
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c->alive = 1;
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/* make sure we call PRI_EVENT_HANGUP_ACK once we send/receive RELEASE_COMPLETE */
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c->sendhangupack = 1;
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c->ourcallstate = Q931_CALL_STATE_CALL_INITIATED;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_CALL_INITIATED);
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c->peercallstate = Q931_CALL_STATE_OVERLAP_SENDING;
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}
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return res;
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@ -2876,7 +2889,7 @@ static int release_complete_ies[] = { Q931_IE_USER_USER, -1 };
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static int q931_release_complete(struct pri *pri, q931_call *c, int cause)
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{
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int res = 0;
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c->ourcallstate = Q931_CALL_STATE_NULL;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_NULL);
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c->peercallstate = Q931_CALL_STATE_NULL;
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if (cause > -1) {
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c->cause = cause;
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@ -3256,7 +3269,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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q931_destroycall(pri, c->cr);
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break;
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}
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c->ourcallstate = Q931_CALL_STATE_RESTART;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_RESTART);
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c->peercallstate = Q931_CALL_STATE_RESTART_REQUEST;
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/* Send back the Restart Acknowledge */
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restart_ack(pri, c);
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@ -3276,7 +3289,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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if (c->progressmask & PRI_PROG_CALLER_NOT_ISDN)
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c->nonisdn = 1;
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c->newcall = 0;
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c->ourcallstate = Q931_CALL_STATE_CALL_PRESENT;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_CALL_PRESENT);
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c->peercallstate = Q931_CALL_STATE_CALL_INITIATED;
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/* it's not yet a call since higher level can respond with RELEASE or RELEASE_COMPLETE */
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c->alive = 0;
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@ -3321,7 +3334,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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q931_release_complete(pri,c,PRI_CAUSE_INVALID_CALL_REFERENCE);
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break;
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}
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c->ourcallstate = Q931_CALL_STATE_CALL_DELIVERED;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_CALL_DELIVERED);
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c->peercallstate = Q931_CALL_STATE_CALL_RECEIVED;
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pri->ev.e = PRI_EVENT_RINGING;
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pri->ev.ringing.channel = c->channelno | (c->ds1no << 8) | (c->ds1explicit << 16);
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@ -3341,7 +3354,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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q931_status(pri, c, PRI_CAUSE_WRONG_MESSAGE);
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break;
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}
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c->ourcallstate = Q931_CALL_STATE_ACTIVE;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_ACTIVE);
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c->peercallstate = Q931_CALL_STATE_CONNECT_REQUEST;
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pri->ev.e = PRI_EVENT_ANSWER;
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pri->ev.answer.channel = c->channelno | (c->ds1no << 8) | (c->ds1explicit << 16);
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@ -3396,7 +3409,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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pri->ev.proceeding.channel = c->channelno | (c->ds1no << 8) | (c->ds1explicit << 16);
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if (mh->msg == Q931_CALL_PROCEEDING) {
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pri->ev.e = PRI_EVENT_PROCEEDING;
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c->ourcallstate = Q931_CALL_STATE_OUTGOING_CALL_PROCEEDING;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_OUTGOING_CALL_PROCEEDING);
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c->peercallstate = Q931_CALL_STATE_INCOMING_CALL_PROCEEDING;
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}
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pri->ev.proceeding.progress = c->progress;
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@ -3413,7 +3426,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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q931_status(pri,c,PRI_CAUSE_WRONG_MESSAGE);
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break;
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}
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c->ourcallstate = Q931_CALL_STATE_ACTIVE;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_ACTIVE);
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c->peercallstate = Q931_CALL_STATE_ACTIVE;
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break;
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case Q931_STATUS:
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@ -3441,7 +3454,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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pri->ev.hangup.aoc_units = c->aoc_units;
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libpri_copy_string(pri->ev.hangup.useruserinfo, c->useruserinfo, sizeof(pri->ev.hangup.useruserinfo));
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/* Free resources */
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c->ourcallstate = Q931_CALL_STATE_NULL;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_NULL);
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c->peercallstate = Q931_CALL_STATE_NULL;
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if (c->alive) {
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pri->ev.e = PRI_EVENT_HANGUP;
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@ -3460,7 +3473,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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}
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break;
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case Q931_RELEASE_COMPLETE:
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c->ourcallstate = Q931_CALL_STATE_NULL;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_NULL);
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c->peercallstate = Q931_CALL_STATE_NULL;
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pri->ev.hangup.channel = c->channelno | (c->ds1no << 8) | (c->ds1explicit << 16);
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pri->ev.hangup.cause = c->cause;
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@ -3495,7 +3508,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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else {
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c->peercallstate = Q931_CALL_STATE_RELEASE_REQUEST;
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}
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c->ourcallstate = Q931_CALL_STATE_NULL;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_NULL);
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pri->ev.e = PRI_EVENT_HANGUP;
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pri->ev.hangup.channel = c->channelno | (c->ds1no << 8) | (c->ds1explicit << 16);
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pri->ev.hangup.cause = c->cause;
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@ -3520,7 +3533,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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q931_release_complete(pri,c,PRI_CAUSE_INVALID_CALL_REFERENCE);
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break;
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}
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c->ourcallstate = Q931_CALL_STATE_DISCONNECT_INDICATION;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_DISCONNECT_INDICATION);
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c->peercallstate = Q931_CALL_STATE_DISCONNECT_REQUEST;
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c->sendhangupack = 1;
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/* Return such an event */
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@ -3538,7 +3551,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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q931_hangup(pri,c,c->cause);
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break;
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case Q931_RESTART_ACKNOWLEDGE:
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c->ourcallstate = Q931_CALL_STATE_NULL;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_NULL);
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c->peercallstate = Q931_CALL_STATE_NULL;
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pri->ev.e = PRI_EVENT_RESTART_ACK;
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pri->ev.restartack.channel = c->channelno | (c->ds1no << 8) | (c->ds1explicit << 16);
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@ -3579,7 +3592,7 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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q931_release_complete(pri,c,PRI_CAUSE_INVALID_CALL_REFERENCE);
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break;
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}
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c->ourcallstate = Q931_CALL_STATE_OVERLAP_SENDING;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_OVERLAP_SENDING);
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c->peercallstate = Q931_CALL_STATE_OVERLAP_RECEIVING;
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pri->ev.e = PRI_EVENT_SETUP_ACK;
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pri->ev.setup_ack.channel = c->channelno | (c->ds1no << 8) | (c->ds1explicit << 16);
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@ -3628,6 +3641,131 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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return 0;
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}
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/* Clear a call, although we did not receive any hangup notification. */
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static int pri_internal_clear(void *data)
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{
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struct q931_call *c = data;
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struct pri *pri = c->pri;
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int res;
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if (c->retranstimer)
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pri_schedule_del(pri, c->retranstimer);
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c->retranstimer = 0;
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c->useruserinfo[0] = '\0';
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c->cause = -1;
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c->causecode = -1;
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c->causeloc = -1;
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c->sugcallstate = -1;
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c->aoc_units = -1;
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UPDATE_OURCALLSTATE(pri, c, Q931_CALL_STATE_NULL);
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c->peercallstate = Q931_CALL_STATE_NULL;
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pri->ev.hangup.channel = c->channelno | (c->ds1no << 8) | (c->ds1explicit << 16);
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pri->ev.hangup.cause = c->cause;
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pri->ev.hangup.cref = c->cr;
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pri->ev.hangup.call = c;
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pri->ev.hangup.aoc_units = c->aoc_units;
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libpri_copy_string(pri->ev.hangup.useruserinfo, c->useruserinfo, sizeof(pri->ev.hangup.useruserinfo));
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/* Free resources */
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if (c->alive) {
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pri->ev.e = PRI_EVENT_HANGUP;
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res = Q931_RES_HAVEEVENT;
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c->alive = 0;
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} else if (c->sendhangupack) {
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res = Q931_RES_HAVEEVENT;
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pri->ev.e = PRI_EVENT_HANGUP_ACK;
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q931_hangup(pri, c, c->cause);
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} else {
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res = 0;
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q931_hangup(pri, c, c->cause);
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}
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return res;
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}
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/* Handle T309 timeout for an active call. */
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static void pri_dl_down_timeout(void *data)
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{
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struct q931_call *c = data;
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struct pri *pri = c->pri;
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if (pri->debug & PRI_DEBUG_Q931_STATE)
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pri_message(pri, DBGHEAD "Timed out waiting for data link re-establishment\n", DBGINFO);
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c->cause = PRI_CAUSE_DESTINATION_OUT_OF_ORDER;
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if (pri_internal_clear(c) == Q931_RES_HAVEEVENT)
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pri->schedev = 1;
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}
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/* Handle Layer 2 down event for a non active call. */
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static void pri_dl_down_cancelcall(void *data)
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{
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struct q931_call *c = data;
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struct pri *pri = c->pri;
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if (pri->debug & PRI_DEBUG_Q931_STATE)
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pri_message(pri, DBGHEAD "Cancel non active call after data link failure\n", DBGINFO);
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c->cause = PRI_CAUSE_DESTINATION_OUT_OF_ORDER;
|
||||
if (pri_internal_clear(c) == Q931_RES_HAVEEVENT)
|
||||
pri->schedev = 1;
|
||||
}
|
||||
|
||||
/* Receive an indication from Layer 2 */
|
||||
void q931_dl_indication(struct pri *pri, int event)
|
||||
{
|
||||
q931_call *cur = NULL;
|
||||
|
||||
/* Just return if T309 is not enabled. */
|
||||
if (!pri || pri->timers[PRI_TIMER_T309] < 0)
|
||||
return;
|
||||
|
||||
switch (event) {
|
||||
case PRI_EVENT_DCHAN_DOWN:
|
||||
pri_message(pri, DBGHEAD "link is DOWN\n", DBGINFO);
|
||||
cur = *pri->callpool;
|
||||
while(cur) {
|
||||
if (cur->ourcallstate == Q931_CALL_STATE_ACTIVE) {
|
||||
/* For a call in Active state, activate T309 only if there is no timer already running. */
|
||||
if (!cur->retranstimer) {
|
||||
pri_message(pri, DBGHEAD "activate T309 for call %d on channel %d\n", DBGINFO, cur->cr, cur->channelno);
|
||||
cur->retranstimer = pri_schedule_event(pri, pri->timers[PRI_TIMER_T309], pri_dl_down_timeout, cur);
|
||||
}
|
||||
} else if (cur->ourcallstate != Q931_CALL_STATE_NULL) {
|
||||
/* For a call that is not in Active state, schedule internal clearing of the call 'ASAP' (delay 0). */
|
||||
pri_message(pri, DBGHEAD "cancel call %d on channel %d in state %d (%s)\n", DBGINFO,
|
||||
cur->cr, cur->channelno, cur->ourcallstate, callstate2str(cur->ourcallstate));
|
||||
if (cur->retranstimer)
|
||||
pri_schedule_del(pri, cur->retranstimer);
|
||||
cur->retranstimer = pri_schedule_event(pri, 0, pri_dl_down_cancelcall, cur);
|
||||
}
|
||||
cur = cur->next;
|
||||
}
|
||||
break;
|
||||
case PRI_EVENT_DCHAN_UP:
|
||||
pri_message(pri, DBGHEAD "link is UP\n", DBGINFO);
|
||||
cur = *pri->callpool;
|
||||
while(cur) {
|
||||
if (cur->ourcallstate == Q931_CALL_STATE_ACTIVE && cur->retranstimer) {
|
||||
pri_message(pri, DBGHEAD "cancel T309 for call %d on channel %d\n", DBGINFO, cur->cr, cur->channelno);
|
||||
pri_schedule_del(pri, cur->retranstimer);
|
||||
cur->retranstimer = 0;
|
||||
q931_status(pri, cur, PRI_CAUSE_NORMAL_UNSPECIFIED);
|
||||
} else if (cur->ourcallstate != Q931_CALL_STATE_NULL &&
|
||||
cur->ourcallstate != Q931_CALL_STATE_DISCONNECT_REQUEST &&
|
||||
cur->ourcallstate != Q931_CALL_STATE_DISCONNECT_INDICATION &&
|
||||
cur->ourcallstate != Q931_CALL_STATE_RELEASE_REQUEST) {
|
||||
|
||||
/* The STATUS message sent here is not required by Q.931, but it may help anyway. */
|
||||
q931_status(pri, cur, PRI_CAUSE_NORMAL_UNSPECIFIED);
|
||||
}
|
||||
cur = cur->next;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
pri_message(pri, DBGHEAD "unexpected event %d.\n", DBGINFO, event);
|
||||
}
|
||||
}
|
||||
|
||||
int q931_call_getcrv(struct pri *pri, q931_call *call, int *callmode)
|
||||
{
|
||||
if (callmode)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user