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Remove all TEIs when NT PTMP starts.

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Remove all TEIs when a NT PTMP link is started and there are no other
links to make sure there are no devices that think they have a TEI.  A
device may think it has a TEI if the upper layer program is restarted or
the system reboots.

This fixes the bug portion of JIRA LIBPRI-51/SWP-2453.


git-svn-id: https://origsvn.digium.com/svn/libpri/branches/1.4@2101 2fbb986a-6c06-0410-b554-c9c1f0a7f128
This commit is contained in:
Richard Mudgett 2010-11-05 19:24:01 +00:00
parent 69694554fb
commit 948625318a
1 changed files with 20 additions and 3 deletions
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23
q921.c
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@ -241,6 +241,16 @@ static void q921_tei_request(struct q921_link *link)
t202_expire(link);
}
static void q921_tei_remove(struct pri *ctrl, int tei)
{
/*
* Q.921 Section 5.3.2 says we should send the remove message
* twice, in case of message loss.
*/
q921_send_tei(ctrl, Q921_TEI_IDENTITY_REMOVE, 0, tei, 1);
q921_send_tei(ctrl, Q921_TEI_IDENTITY_REMOVE, 0, tei, 1);
}
static void q921_send_dm(struct q921_link *link, int fbit)
{
q921_h h;
@ -2588,9 +2598,7 @@ static pri_event *q921_handle_unmatched_frame(struct pri *ctrl, q921_h *h, int l
pri_message(ctrl, "Sending TEI release, in order to re-establish TEI state\n");
}
/* Q.921 says we should send the remove message twice, in case of link corruption */
q921_send_tei(ctrl, Q921_TEI_IDENTITY_REMOVE, 0, h->h.tei, 1);
q921_send_tei(ctrl, Q921_TEI_IDENTITY_REMOVE, 0, h->h.tei, 1);
q921_tei_remove(ctrl, h->h.tei);
}
return NULL;
@ -2694,6 +2702,15 @@ void q921_start(struct q921_link *link)
} else {
q921_setstate(link, Q921_TEI_UNASSIGNED);
pri_schedule_event(ctrl, 0, nt_ptmp_dchannel_up, ctrl);
if (!ctrl->link.next) {
/*
* We do not have any TEI's so make sure there are no devices
* that think they have a TEI. A device may think it has a TEI
* if the upper layer program is restarted or the system
* reboots.
*/
q921_tei_remove(ctrl, Q921_TEI_GROUP);
}
}
} else {
/* PTP mode, no need for TEI management junk */