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abis_rsl: inform user when expired channel requests get tossed 

At the moment expired channel requests are dropped silently, however, it
might help to know when this happens - not only for debugging.

Change-Id: Ib49df551a4cd7d5652e85c8ce29ef132385d4ae4
Related: OS#4549
This commit is contained in:
Philipp Maier 2020-09-10 20:12:37 +02:00
parent 1482ec4813
commit 3c6e86adce
1 changed files with 6 additions and 2 deletions
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8
src/osmo-bsc/abis_rsl.c
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@ -1384,10 +1384,14 @@ static void reduce_rach_dos(struct gsm_bts *bts)
llist_for_each_entry_safe(rqd, rqd_tmp, &bts->chan_rqd_queue, entry) {
/* If the channel request is older than the radio link timeout we drop it. This also means that the
* queue is under its overflow limit again. */
if (timestamp_current - rqd->timestamp > rlt)
if (timestamp_current - rqd->timestamp > rlt) {
LOG_BTS(bts, DRSL, LOGL_INFO, "CHAN RQD: tossing expired channel request"
"(ra=0x%02x, neci=0x%02x, chreq_reason=0x%02x)\n",
rqd->ref.ra, bts->network->neci, rqd->reason);
llist_del(&rqd->entry);
else
} else {
rqd_count++;
}
}
/* If we find more than 255 (256) unexpired channel requests in the queue it is very likely that there is a