diff options
Diffstat (limited to 'openbsc/src/libmsc/osmo_msc.c')
| -rw-r--r-- | openbsc/src/libmsc/osmo_msc.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/openbsc/src/libmsc/osmo_msc.c b/openbsc/src/libmsc/osmo_msc.c deleted file mode 100644 index 2389980d3..000000000 --- a/openbsc/src/libmsc/osmo_msc.c +++ /dev/null @@ -1,177 +0,0 @@ -/* main MSC management code... */ - -/* - * (C) 2010,2013 by Holger Hans Peter Freyther <zecke@selfish.org> - * (C) 2010 by On-Waves - * - * All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as published by - * the Free Software Foundation; either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - */ - -#include <openbsc/bsc_api.h> -#include <openbsc/debug.h> -#include <openbsc/transaction.h> -#include <openbsc/db.h> - -#include <openbsc/gsm_04_11.h> - -static void msc_sapi_n_reject(struct gsm_subscriber_connection *conn, int dlci) -{ - int sapi = dlci & 0x7; - - if (sapi == UM_SAPI_SMS) - gsm411_sapi_n_reject(conn); -} - -static int msc_clear_request(struct gsm_subscriber_connection *conn, uint32_t cause) -{ - gsm0408_clear_request(conn, cause); - return 1; -} - -static int msc_compl_l3(struct gsm_subscriber_connection *conn, struct msgb *msg, - uint16_t chosen_channel) -{ - gsm0408_new_conn(conn); - gsm0408_dispatch(conn, msg); - - /* - * If this is a silent call we want the channel to remain open as long as - * possible and this is why we accept this connection regardless of any - * pending transaction or ongoing operation. - */ - if (conn->silent_call) - return BSC_API_CONN_POL_ACCEPT; - if (conn->loc_operation || conn->sec_operation || conn->anch_operation) - return BSC_API_CONN_POL_ACCEPT; - if (trans_has_conn(conn)) - return BSC_API_CONN_POL_ACCEPT; - - LOGP(DRR, LOGL_INFO, "MSC Complete L3: Rejecting connection.\n"); - return BSC_API_CONN_POL_REJECT; -} - -static void msc_dtap(struct gsm_subscriber_connection *conn, uint8_t link_id, struct msgb *msg) -{ - gsm0408_dispatch(conn, msg); -} - -static void msc_assign_compl(struct gsm_subscriber_connection *conn, - uint8_t rr_cause, uint8_t chosen_channel, - uint8_t encr_alg_id, uint8_t speec) -{ - LOGP(DRR, LOGL_DEBUG, "MSC assign complete (do nothing).\n"); -} - -static void msc_assign_fail(struct gsm_subscriber_connection *conn, - uint8_t cause, uint8_t *rr_cause) -{ - LOGP(DRR, LOGL_DEBUG, "MSC assign failure (do nothing).\n"); -} - -static void msc_classmark_chg(struct gsm_subscriber_connection *conn, - const uint8_t *cm2, uint8_t cm2_len, - const uint8_t *cm3, uint8_t cm3_len) -{ - struct gsm_subscriber *subscr = conn->subscr; - - if (subscr) { - subscr->equipment.classmark2_len = cm2_len; - memcpy(subscr->equipment.classmark2, cm2, cm2_len); - if (cm3) { - subscr->equipment.classmark3_len = cm3_len; - memcpy(subscr->equipment.classmark3, cm3, cm3_len); - } - db_sync_equipment(&subscr->equipment); - } -} - -static void msc_ciph_m_compl(struct gsm_subscriber_connection *conn, - struct msgb *msg, uint8_t alg_id) -{ - gsm_cbfn *cb; - - DEBUGP(DRR, "CIPHERING MODE COMPLETE\n"); - - /* Safety check */ - if (!conn->sec_operation) { - DEBUGP(DRR, "No authentication/cipher operation in progress !!!\n"); - return; - } - - /* FIXME: check for MI (if any) */ - - /* Call back whatever was in progress (if anything) ... */ - cb = conn->sec_operation->cb; - if (cb) { - cb(GSM_HOOK_RR_SECURITY, GSM_SECURITY_SUCCEEDED, - NULL, conn, conn->sec_operation->cb_data); - - } - - /* Complete the operation */ - release_security_operation(conn); -} - - - -static struct bsc_api msc_handler = { - .sapi_n_reject = msc_sapi_n_reject, - .compl_l3 = msc_compl_l3, - .dtap = msc_dtap, - .clear_request = msc_clear_request, - .assign_compl = msc_assign_compl, - .assign_fail = msc_assign_fail, - .classmark_chg = msc_classmark_chg, - .cipher_mode_compl = msc_ciph_m_compl, -}; - -struct bsc_api *msc_bsc_api() { - return &msc_handler; -} - -/* lchan release handling */ -void msc_release_connection(struct gsm_subscriber_connection *conn) -{ - /* skip when we are in release, e.g. due an error */ - if (conn->in_release) - return; - - /* skip releasing of silent calls as they have no transaction */ - if (conn->silent_call) - return; - - /* check if there is a pending operation */ - if (conn->loc_operation || conn->sec_operation || conn->anch_operation) - return; - - if (trans_has_conn(conn)) - return; - - /* no more connections, asking to release the channel */ - - /* - * We had stopped the LU expire timer T3212. Now we are about - * to send the MS back to the idle state and this should lead - * to restarting the timer. Set the new expiration time. - */ - if (conn->expire_timer_stopped) - subscr_update_expire_lu(conn->subscr, conn->bts); - - conn->in_release = 1; - gsm0808_clear(conn); - msc_subscr_con_free(conn); -} |