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libbsc: Release the RF channel if BTS thinks it's still in use 

The Nokia metrosite BTS seem to keep the channels open indefinitely.
If osmo-nitb is restarted while one of the channel was still active
and tries to activate that channel again the bts would return a
CHANNEL ACTIVATE NACK with "Radio channel already activated". This
accumulated over the restarts so soon enough no more channels were
available.

This patch sends a release request to the bts so the channel
becomes available again.
This commit is contained in:
Daniel Willmann 2011-08-11 04:47:11 +02:00 committed by Harald Welte
parent 513da17732
commit 7ddc318687
1 changed files with 3 additions and 0 deletions
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3
openbsc/src/libbsc/abis_rsl.c
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@ -863,6 +863,9 @@ static int rsl_rx_chan_act_nack(struct msgb *msg)
TLVP_LEN(&tp, RSL_IE_CAUSE));
if (*cause != RSL_ERR_RCH_ALR_ACTV_ALLOC)
rsl_lchan_set_state(msg->lchan, LCHAN_S_NONE);
else
rsl_rf_chan_release(msg->lchan, 1);
} else
rsl_lchan_set_state(msg->lchan, LCHAN_S_NONE);