From b0150b7ad4610307308595d3fe1b28b31466e8de Mon Sep 17 00:00:00 2001
From: Holger Hans Peter Freyther <zecke@selfish.org>
Date: Mon, 16 Apr 2012 22:15:29 +0200
Subject: lchan: Refuse to activate a non-idle lchan.

---
 src/common/rsl.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/common/rsl.c')

diff --git a/src/common/rsl.c b/src/common/rsl.c
index 188d4391..d7d728a8 100644
--- a/src/common/rsl.c
+++ b/src/common/rsl.c
@@ -617,6 +617,13 @@ static int rsl_rx_chan_activ(struct msgb *msg)
 	struct tlv_parsed tp;
 	uint8_t type;
 
+	if (lchan->state != LCHAN_S_NONE) {
+		LOGP(DRSL, LOGL_ERROR,
+		     "%s: error lchan is not available state: %s.\n",
+		     gsm_lchan_name(lchan), gsm_lchans_name(lchan->state));
+		return rsl_tx_chan_act_nack(lchan, RSL_ERR_EQUIPMENT_FAIL);
+	}
+
 	rsl_tlv_parse(&tp, msgb_l3(msg), msgb_l3len(msg));
 
 	/* 9.3.3 Activation Type */
-- 
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