diff options
author | Philipp Maier <pmaier@sysmocom.de> | 2019-02-04 16:46:55 +0100 |
---|---|---|
committer | Philipp Maier <pmaier@sysmocom.de> | 2019-02-07 10:01:46 +0100 |
commit | 896950ab82729e7ef5b57057aff797519d603b7f (patch) | |
tree | ebf9c3be4416b4ce6186eb89eee5d4f0ff48e1a8 | |
parent | 845285077d28825da11cdfe845e3bf1e9bd5b23f (diff) |
a_iface: Include CSFB Indication into BSSMAP CLEAR COMMAND
When a call ends that has been established in an CSFB context, we should
add a CSFB Indication IE to the BSSMAP CLEAR COMMAND to instruct the BSC
to add further CSFB related IEs into the RR RELEASE.
- Check if an SGs association exists and add CSFB Indication IE
Change-Id: I6cfa4b3becdd0138d74e2e1eddd83a0b1568c1de
Related: OS#3778
-rw-r--r-- | src/libmsc/a_iface.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/libmsc/a_iface.c b/src/libmsc/a_iface.c index 0811734ad..3a7690d94 100644 --- a/src/libmsc/a_iface.c +++ b/src/libmsc/a_iface.c @@ -416,10 +416,15 @@ int a_iface_tx_assignment(const struct gsm_trans *trans) int a_iface_tx_clear_cmd(struct ran_conn *conn) { struct msgb *msg; + struct vlr_subscr *vsub = conn->vsub; + bool csfb_ind = false; LOGPCONN(conn, LOGL_INFO, "Tx BSSMAP CLEAR COMMAND to BSC\n"); - msg = gsm0808_create_clear_command(GSM0808_CAUSE_CALL_CONTROL); + if (vsub && vsub->sgs_fsm->state == SGS_UE_ST_ASSOCIATED) + csfb_ind = true; + + msg = gsm0808_create_clear_command2(GSM0808_CAUSE_CALL_CONTROL, csfb_ind); return osmo_sccp_tx_data_msg(conn->a.scu, conn->a.conn_id, msg); } |