diff options
| -rw-r--r-- | src/osmo-bsc/gsm_04_08_rr.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/osmo-bsc/gsm_04_08_rr.c b/src/osmo-bsc/gsm_04_08_rr.c index 07978de30..de1e42303 100644 --- a/src/osmo-bsc/gsm_04_08_rr.c +++ b/src/osmo-bsc/gsm_04_08_rr.c @@ -43,6 +43,7 @@ #include <osmocom/bsc/handover_fsm.h> #include <osmocom/bsc/gsm_08_08.h> #include <osmocom/bsc/gsm_data.h> +#include <osmocom/bsc/bsc_msc_data.h> #include <osmocom/bsc/system_information.h> @@ -987,6 +988,22 @@ static void dispatch_dtap(struct gsm_subscriber_connection *conn, break; } break; + case GSM48_PDISC_CC: + /* Make sure that EMERGENCY CALLS can not be made if the + * VTY configuration does not permit. */ + if(msg_type == GSM48_MT_CC_EMERG_SETUP) { + if (msg->lchan->ts->trx->bts->si_common.rach_control.t2 & 0x4) { + LOG_LCHAN(msg->lchan, LOGL_NOTICE, "MS attempts EMERGENCY SETUP although EMERGENCY CALLS are not allowed in sysinfo (spec violation by MS!)\n"); + lchan_release(msg->lchan, true, true, GSM48_RR_CAUSE_PREMPTIVE_REL); + break; + } + if (!conn->sccp.msc->allow_emerg) { + LOG_LCHAN(msg->lchan, LOGL_NOTICE, "MS attempts EMERGENCY SETUP, but EMERGENCY CALLS are denied on this BSC (check BTS config!)\n"); + lchan_release(msg->lchan, true, true, GSM48_RR_CAUSE_PREMPTIVE_REL); + break; + } + } + /* fall through */ default: bsc_dtap(conn, link_id, msg); break; |