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authorNeels Hofmeyr <neels@hofmeyr.de>2018-06-16 16:53:22 +0200
committerNeels Hofmeyr <neels@hofmeyr.de>2018-06-26 23:57:13 +0200
commit6f3cd4db164d4bbb53f2677c985e3346acd02298 (patch)
tree94d594eed3f7d579eb471c9b4510317da447f2ea
parentaf6f6bc3d63a889b851a6ef3da98ffdcdfde2f28 (diff)
move RSL and RR related functions to abis_rsl.[hc]
It doesn't make sense to spread them all over the place, and introduces odd dependencies from utility programs or regression test linkages. This is a cosmetic patch preparing for lchan activation refactoring. Change-Id: Ie8ee334145bf7bc3a601d395ea7ab9b2009b61c7
-rw-r--r--include/osmocom/bsc/abis_rsl.h15
-rw-r--r--include/osmocom/bsc/bsc_api.h1
-rw-r--r--include/osmocom/bsc/gsm_04_08_utils.h12
-rw-r--r--src/osmo-bsc/abis_rsl.c579
-rw-r--r--src/osmo-bsc/bsc_api.c306
-rw-r--r--src/osmo-bsc/gsm_04_08_utils.c274
6 files changed, 594 insertions, 593 deletions
diff --git a/include/osmocom/bsc/abis_rsl.h b/include/osmocom/bsc/abis_rsl.h
index 2fe8c38e7..c04c61a9f 100644
--- a/include/osmocom/bsc/abis_rsl.h
+++ b/include/osmocom/bsc/abis_rsl.h
@@ -110,5 +110,20 @@ void dyn_ts_init(struct gsm_bts_trx_ts *ts);
int dyn_ts_switchover_start(struct gsm_bts_trx_ts *ts,
enum gsm_phys_chan_config to_pchan);
+struct msgb *gsm48_create_rr_status(uint8_t cause);
+int gsm48_tx_rr_status(struct gsm_subscriber_connection *conn, uint8_t cause);
+
+int gsm0408_rcvmsg(struct msgb *msg, uint8_t link_id);
+int send_siemens_mrpci(struct gsm_lchan *lchan,
+ uint8_t *classmark2_lv);
+
+int gsm48_rx_rr_modif_ack(struct msgb *msg);
+int gsm48_send_rr_release(struct gsm_lchan *lchan);
+int gsm48_send_rr_ciph_mode(struct gsm_lchan *lchan, int want_imeisv);
+int gsm48_send_ho_cmd(struct gsm_lchan *old_lchan, struct gsm_lchan *new_lchan,
+ uint8_t power_command, uint8_t ho_ref);
+int gsm48_send_rr_ass_cmd(struct gsm_lchan *dest_lchan, struct gsm_lchan *lchan, uint8_t power_command);
+int gsm48_lchan_modify(struct gsm_lchan *lchan, uint8_t mode);
+
#endif /* RSL_MT_H */
diff --git a/include/osmocom/bsc/bsc_api.h b/include/osmocom/bsc/bsc_api.h
index a90268bde..9e2b44e2c 100644
--- a/include/osmocom/bsc/bsc_api.h
+++ b/include/osmocom/bsc/bsc_api.h
@@ -28,5 +28,4 @@ int gsm0808_page(struct gsm_bts *bts, unsigned int page_group,
unsigned int mi_len, uint8_t *mi, int chan_type);
int gsm0808_clear(struct gsm_subscriber_connection *conn);
-int gsm0408_rcvmsg(struct msgb *msg, uint8_t link_id);
#endif
diff --git a/include/osmocom/bsc/gsm_04_08_utils.h b/include/osmocom/bsc/gsm_04_08_utils.h
index 4349a37cc..207ed382c 100644
--- a/include/osmocom/bsc/gsm_04_08_utils.h
+++ b/include/osmocom/bsc/gsm_04_08_utils.h
@@ -3,20 +3,11 @@
void gsm_net_update_ctype(struct gsm_network *network);
enum gsm_chan_t get_ctype_by_chreq(struct gsm_network *network, uint8_t ra);
int get_reason_by_chreq(uint8_t ra, int neci);
-int gsm48_send_rr_release(struct gsm_lchan *lchan);
-int send_siemens_mrpci(struct gsm_lchan *lchan,
- uint8_t *classmark2_lv);
int gsm48_handle_paging_resp(struct gsm_subscriber_connection *conn,
struct msgb *msg, struct bsc_subscr *bsub);
-int gsm48_send_rr_ciph_mode(struct gsm_lchan *lchan, int want_imeisv);
void gsm48_lchan2chan_desc(struct gsm48_chan_desc *cd,
const struct gsm_lchan *lchan);
int gsm48_multirate_config(uint8_t *lv, const struct amr_multirate_conf *mr, const struct amr_mode *modes);
-int gsm48_send_ho_cmd(struct gsm_lchan *old_lchan, struct gsm_lchan *new_lchan,
- uint8_t power_command, uint8_t ho_ref);
-int gsm48_send_rr_ass_cmd(struct gsm_lchan *dest_lchan, struct gsm_lchan *lchan, uint8_t power_command);
-int gsm48_lchan_modify(struct gsm_lchan *lchan, uint8_t mode);
-int gsm48_rx_rr_modif_ack(struct msgb *msg);
int gsm48_parse_meas_rep(struct gsm_meas_rep *rep, struct msgb *msg);
int gsm48_tx_mm_serv_ack(struct gsm_subscriber_connection *conn);
int gsm48_tx_mm_serv_rej(struct gsm_subscriber_connection *conn,
@@ -28,9 +19,6 @@ int gsm48_paging_extract_mi(struct gsm48_pag_resp *resp, int length,
char *mi_string, uint8_t *mi_type);
struct msgb *gsm48_create_loc_upd_rej(uint8_t cause);
-struct msgb *gsm48_create_rr_status(uint8_t cause);
-int gsm48_tx_rr_status(struct gsm_subscriber_connection *conn, uint8_t cause);
-
#define GSM48_ALLOC_SIZE 2048
#define GSM48_ALLOC_HEADROOM 256
diff --git a/src/osmo-bsc/abis_rsl.c b/src/osmo-bsc/abis_rsl.c
index ab3658d53..b6741a8d8 100644
--- a/src/osmo-bsc/abis_rsl.c
+++ b/src/osmo-bsc/abis_rsl.c
@@ -3032,3 +3032,582 @@ bool on_gsm_ts_init(struct gsm_bts_trx_ts *ts)
dyn_ts_init(ts);
return true;
}
+
+static void handle_classmark_chg(struct gsm_subscriber_connection *conn,
+ struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
+ uint8_t cm2_len, cm3_len = 0;
+ uint8_t *cm2, *cm3 = NULL;
+
+ LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG, "CLASSMARK CHANGE ");
+
+ /* classmark 2 */
+ cm2_len = gh->data[0];
+ cm2 = &gh->data[1];
+ DEBUGPC(DRR, "CM2(len=%u) ", cm2_len);
+
+ if (payload_len > cm2_len + 1) {
+ /* we must have a classmark3 */
+ if (gh->data[cm2_len+1] != 0x20) {
+ DEBUGPC(DRR, "ERR CM3 TAG\n");
+ return;
+ }
+ if (cm2_len > 3) {
+ DEBUGPC(DRR, "CM2 too long!\n");
+ return;
+ }
+
+ cm3_len = gh->data[cm2_len+2];
+ cm3 = &gh->data[cm2_len+3];
+ if (cm3_len > 14) {
+ DEBUGPC(DRR, "CM3 len %u too long!\n", cm3_len);
+ return;
+ }
+ DEBUGPC(DRR, "CM3(len=%u)\n", cm3_len);
+ }
+ bsc_cm_update(conn, cm2, cm2_len, cm3, cm3_len);
+}
+
+/* Chapter 9.1.16 Handover complete */
+static void handle_rr_ho_compl(struct msgb *msg)
+{
+ struct lchan_signal_data sig;
+ struct gsm48_hdr *gh = msgb_l3(msg);
+
+ LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG,
+ "HANDOVER COMPLETE cause = %s\n", rr_cause_name(gh->data[0]));
+
+ sig.lchan = msg->lchan;
+ sig.mr = NULL;
+ osmo_signal_dispatch(SS_LCHAN, S_LCHAN_HANDOVER_COMPL, &sig);
+ /* FIXME: release old channel */
+
+ /* send pending messages, if any */
+ gscon_dtap_cache_flush(msg->lchan->conn, 1);
+}
+
+/* Chapter 9.1.17 Handover Failure */
+static void handle_rr_ho_fail(struct msgb *msg)
+{
+ struct lchan_signal_data sig;
+ struct gsm48_hdr *gh = msgb_l3(msg);
+
+ /* Log on both RR and HO categories: it is an RR message, but is still quite important when
+ * filtering on HO. */
+ LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG,
+ "HANDOVER FAILED cause = %s\n", rr_cause_name(gh->data[0]));
+ LOGPLCHAN(msg->lchan, DHO, LOGL_DEBUG,
+ "HANDOVER FAILED cause = %s\n", rr_cause_name(gh->data[0]));
+
+ sig.lchan = msg->lchan;
+ sig.mr = NULL;
+ osmo_signal_dispatch(SS_LCHAN, S_LCHAN_HANDOVER_FAIL, &sig);
+ /* FIXME: release allocated new channel */
+
+ /* send pending messages, if any */
+ gscon_dtap_cache_flush(msg->lchan->conn, 1);
+}
+
+static void handle_ass_compl(struct gsm_subscriber_connection *conn,
+ struct msgb *msg)
+{
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ enum gsm48_rr_cause cause;
+
+ /* Expecting gsm48_hdr + cause value */
+ if (msgb_l3len(msg) != sizeof(*gh) + 1) {
+ LOGPLCHAN(msg->lchan, DRR, LOGL_ERROR,
+ "RR Assignment Complete: length invalid: %u, expected %zu\n",
+ msgb_l3len(msg), sizeof(*gh) + 1);
+ return;
+ }
+
+ cause = gh->data[0];
+
+ LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG, "ASSIGNMENT COMPLETE cause = %s\n",
+ rr_cause_name(cause));
+
+ if (conn->ho) {
+ struct lchan_signal_data sig = {
+ .lchan = msg->lchan,
+ };
+ osmo_signal_dispatch(SS_LCHAN, S_LCHAN_ASSIGNMENT_COMPL, &sig);
+ /* FIXME: release old channel */
+
+ /* send pending messages, if any */
+ gscon_dtap_cache_flush(conn, 1);
+
+ return;
+ }
+
+ if (conn->secondary_lchan != msg->lchan) {
+ LOGPLCHAN(msg->lchan, DRR, LOGL_ERROR,
+ "RR Assignment Complete does not match conn's secondary lchan.\n");
+ return;
+ }
+
+ lchan_release(conn->lchan, 0, RSL_REL_LOCAL_END);
+ conn->lchan = conn->secondary_lchan;
+ conn->secondary_lchan = NULL;
+
+ /* send pending messages, if any */
+ gscon_dtap_cache_flush(conn, 1);
+
+ if (is_ipaccess_bts(conn_get_bts(conn)) && conn->lchan->tch_mode != GSM48_CMODE_SIGN)
+ rsl_ipacc_crcx(conn->lchan);
+
+ bsc_assign_compl(conn, cause);
+}
+
+static void handle_ass_fail(struct gsm_subscriber_connection *conn,
+ struct msgb *msg)
+{
+ uint8_t *rr_failure;
+ struct gsm48_hdr *gh;
+
+ if (conn->ho) {
+ struct lchan_signal_data sig;
+ struct gsm48_hdr *gh = msgb_l3(msg);
+
+ LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG, "ASSIGNMENT FAILED cause = %s\n",
+ rr_cause_name(gh->data[0]));
+
+ sig.lchan = msg->lchan;
+ sig.mr = NULL;
+ osmo_signal_dispatch(SS_LCHAN, S_LCHAN_ASSIGNMENT_FAIL, &sig);
+ /* FIXME: release allocated new channel */
+
+ /* send pending messages, if any */
+ gscon_dtap_cache_flush(conn, 1);
+
+ return;
+ }
+
+ if (conn->lchan != msg->lchan) {
+ LOGPLCHAN(msg->lchan, DMSC, LOGL_ERROR,
+ "Assignment failure should occur on primary lchan.\n");
+ return;
+ }
+
+ /* stop the timer and release it */
+ if (conn->secondary_lchan) {
+ lchan_release(conn->secondary_lchan, 0, RSL_REL_LOCAL_END);
+ conn->secondary_lchan = NULL;
+ }
+
+ /* send pending messages, if any */
+ gscon_dtap_cache_flush(conn, 1);
+
+ gh = msgb_l3(msg);
+ if (msgb_l3len(msg) - sizeof(*gh) != 1) {
+ LOGPLCHAN(conn->lchan, DMSC, LOGL_ERROR, "assignment failure unhandled: %zu\n",
+ msgb_l3len(msg) - sizeof(*gh));
+ rr_failure = NULL;
+ } else {
+ rr_failure = &gh->data[0];
+ }
+
+ bsc_assign_fail(conn, GSM0808_CAUSE_RADIO_INTERFACE_MESSAGE_FAILURE, rr_failure);
+}
+
+static void dispatch_dtap(struct gsm_subscriber_connection *conn,
+ uint8_t link_id, struct msgb *msg)
+{
+ struct gsm48_hdr *gh;
+ uint8_t pdisc;
+ uint8_t msg_type;
+ int rc;
+
+ if (msgb_l3len(msg) < sizeof(*gh)) {
+ LOGP(DMSC, LOGL_ERROR, "(%s) Message too short for a GSM48 header.\n",
+ bsc_subscr_name(conn->bsub));
+ return;
+ }
+
+ gh = msgb_l3(msg);
+ pdisc = gsm48_hdr_pdisc(gh);
+ msg_type = gsm48_hdr_msg_type(gh);
+
+ /* the idea is to handle all RR messages here, and only hand
+ * MM/CC/SMS-CP/LCS up to the MSC. Some messages like PAGING
+ * RESPONSE or CM SERVICE REQUEST will not be covered here, as
+ * they are only possible in the first L3 message of each L2
+ * channel, i.e. 'conn' will not exist and gsm0408_rcvmsg()
+ * will call api->compl_l3() for it */
+ switch (pdisc) {
+ case GSM48_PDISC_RR:
+ switch (msg_type) {
+ case GSM48_MT_RR_GPRS_SUSP_REQ:
+ LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG,
+ "%s\n", gsm48_rr_msg_name(GSM48_MT_RR_GPRS_SUSP_REQ));
+ break;
+ case GSM48_MT_RR_STATUS:
+ LOGPLCHAN(msg->lchan, DRR, LOGL_NOTICE,
+ "%s (cause: %s)\n", gsm48_rr_msg_name(GSM48_MT_RR_STATUS),
+ rr_cause_name(gh->data[0]));
+ break;
+ case GSM48_MT_RR_MEAS_REP:
+ /* This shouldn't actually end up here, as RSL treats
+ * L3 Info of 08.58 MEASUREMENT REPORT different by calling
+ * directly into gsm48_parse_meas_rep */
+ LOGPLCHAN(msg->lchan, DMEAS, LOGL_ERROR,
+ "DIRECT GSM48 MEASUREMENT REPORT ?!?\n");
+ gsm48_tx_rr_status(conn, GSM48_RR_CAUSE_MSG_TYPE_N_COMPAT);
+ break;
+ case GSM48_MT_RR_HANDO_COMPL:
+ handle_rr_ho_compl(msg);
+ break;
+ case GSM48_MT_RR_HANDO_FAIL:
+ handle_rr_ho_fail(msg);
+ break;
+ case GSM48_MT_RR_CIPH_M_COMPL:
+ bsc_cipher_mode_compl(conn, msg, conn->lchan->encr.alg_id);
+ break;
+ case GSM48_MT_RR_ASS_COMPL:
+ handle_ass_compl(conn, msg);
+ break;
+ case GSM48_MT_RR_ASS_FAIL:
+ handle_ass_fail(conn, msg);
+ break;
+ case GSM48_MT_RR_CHAN_MODE_MODIF_ACK:
+ rc = gsm48_rx_rr_modif_ack(msg);
+ if (rc < 0)
+ bsc_assign_fail(conn, GSM0808_CAUSE_NO_RADIO_RESOURCE_AVAILABLE, NULL);
+ else
+ bsc_assign_compl(conn, 0);
+ break;
+ case GSM48_MT_RR_CLSM_CHG:
+ handle_classmark_chg(conn, msg);
+ break;
+ case GSM48_MT_RR_APP_INFO:
+ /* Passing RR APP INFO to MSC, not quite
+ * according to spec */
+ bsc_dtap(conn, link_id, msg);
+ break;
+ default:
+ /* Drop unknown RR message */
+ LOGPLCHAN(msg->lchan, DRR, LOGL_NOTICE,
+ "Dropping %s 04.08 RR message\n", gsm48_rr_msg_name(msg_type));
+ gsm48_tx_rr_status(conn, GSM48_RR_CAUSE_MSG_TYPE_N);
+ break;
+ }
+ break;
+ default:
+ bsc_dtap(conn, link_id, msg);
+ break;
+ }
+}
+
+/*! \brief RSL has received a DATA INDICATION with L3 from MS */
+int gsm0408_rcvmsg(struct msgb *msg, uint8_t link_id)
+{
+ int rc;
+ struct gsm_lchan *lchan;
+
+ lchan = msg->lchan;
+ if (lchan->state != LCHAN_S_ACTIVE) {
+ LOGPLCHAN(msg->lchan, DRSL, LOGL_INFO, "Got data in non active state, discarding.\n");
+ return -1;
+ }
+
+
+ if (lchan->conn) {
+ /* if we already have a connection, forward via DTAP to
+ * MSC */
+ dispatch_dtap(lchan->conn, link_id, msg);
+ } else {
+ /* allocate a new connection */
+ rc = BSC_API_CONN_POL_REJECT;
+ lchan->conn = bsc_subscr_con_allocate(msg->lchan->ts->trx->bts->network);
+ if (!lchan->conn) {
+ lchan_release(lchan, 1, RSL_REL_NORMAL);
+ return -1;
+ }
+ lchan->conn->lchan = lchan;
+
+ /* fwd via bsc_api to send COMPLETE L3 INFO to MSC */
+ rc = bsc_compl_l3(lchan->conn, msg, 0);
+
+ if (rc != BSC_API_CONN_POL_ACCEPT) {
+ //osmo_fsm_inst_dispatch(lchan->conn->fi, FIXME, NULL);
+ }
+ }
+
+ return 0;
+}
+
+/* 9.1.29 RR Status */
+struct msgb *gsm48_create_rr_status(uint8_t cause)
+{
+ struct msgb *msg;
+ struct gsm48_hdr *gh;
+
+ msg = gsm48_msgb_alloc_name("GSM 04.08 RR STATUS");
+ if (!msg)
+ return NULL;
+
+ gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
+ gh->proto_discr = GSM48_PDISC_RR;
+ gh->msg_type = GSM48_MT_RR_STATUS;
+ gh->data[0] = cause;
+
+ return msg;
+}
+
+/* 9.1.29 RR Status */
+int gsm48_tx_rr_status(struct gsm_subscriber_connection *conn, uint8_t cause)
+{
+ struct msgb *msg = gsm48_create_rr_status(cause);
+ if (!msg)
+ return -1;
+ gscon_submit_rsl_dtap(conn, msg, 0, 0);
+ return 0;
+}
+
+int send_siemens_mrpci(struct gsm_lchan *lchan,
+ uint8_t *classmark2_lv)
+{
+ struct rsl_mrpci mrpci;
+
+ if (classmark2_lv[0] < 2)
+ return -EINVAL;
+
+ mrpci.power_class = classmark2_lv[1] & 0x7;
+ mrpci.vgcs_capable = classmark2_lv[2] & (1 << 1);
+ mrpci.vbs_capable = classmark2_lv[2] & (1 <<2);
+ mrpci.gsm_phase = (classmark2_lv[1]) >> 5 & 0x3;
+
+ return rsl_siemens_mrpci(lchan, &mrpci);
+}
+
+int gsm48_rx_rr_modif_ack(struct msgb *msg)
+{
+ int rc;
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ struct gsm48_chan_mode_modify *mod =
+ (struct gsm48_chan_mode_modify *) gh->data;
+
+ DEBUGP(DRR, "CHANNEL MODE MODIFY ACK\n");
+
+ if (mod->mode != msg->lchan->tch_mode) {
+ LOGP(DRR, LOGL_ERROR, "CHANNEL MODE change failed. Wanted: %d Got: %d\n",
+ msg->lchan->tch_mode, mod->mode);
+ return -1;
+ }
+
+ /* update the channel type */
+ switch (mod->mode) {
+ case GSM48_CMODE_SIGN:
+ msg->lchan->rsl_cmode = RSL_CMOD_SPD_SIGN;
+ break;
+ case GSM48_CMODE_SPEECH_V1:
+ case GSM48_CMODE_SPEECH_EFR:
+ case GSM48_CMODE_SPEECH_AMR:
+ msg->lchan->rsl_cmode = RSL_CMOD_SPD_SPEECH;
+ break;
+ case GSM48_CMODE_DATA_14k5:
+ case GSM48_CMODE_DATA_12k0:
+ case GSM48_CMODE_DATA_6k0:
+ case GSM48_CMODE_DATA_3k6:
+ msg->lchan->rsl_cmode = RSL_CMOD_SPD_DATA;
+ break;
+ }
+
+ /* We've successfully modified the MS side of the channel,
+ * now go on to modify the BTS side of the channel */
+ rc = rsl_chan_mode_modify_req(msg->lchan);
+
+ /* FIXME: we not only need to do this after mode modify, but
+ * also after channel activation */
+ if (is_ipaccess_bts(msg->lchan->ts->trx->bts) && mod->mode != GSM48_CMODE_SIGN)
+ rsl_ipacc_crcx(msg->lchan);
+ return rc;
+}
+
+static int gsm48_sendmsg(struct msgb *msg)
+{
+ if (msg->lchan)
+ msg->dst = msg->lchan->ts->trx->rsl_link;
+
+ msg->l3h = msg->data;
+ return rsl_data_request(msg, 0);
+}
+
+/* 7.1.7 and 9.1.7: RR CHANnel RELease */
+int gsm48_send_rr_release(struct gsm_lchan *lchan)
+{
+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 RR REL");
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+ uint8_t *cause;
+
+ msg->lchan = lchan;
+ gh->proto_discr = GSM48_PDISC_RR;
+ gh->msg_type = GSM48_MT_RR_CHAN_REL;
+
+ cause = msgb_put(msg, 1);
+ cause[0] = GSM48_RR_CAUSE_NORMAL;
+
+ DEBUGP(DRR, "Sending Channel Release: Chan: Number: %d Type: %d\n",
+ lchan->nr, lchan->type);
+
+ /* Send actual release request to MS */
+ return gsm48_sendmsg(msg);
+}
+
+/* Chapter 9.1.9: Ciphering Mode Command */
+int gsm48_send_rr_ciph_mode(struct gsm_lchan *lchan, int want_imeisv)
+{
+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CIPH");
+ struct gsm48_hdr *gh;
+ uint8_t ciph_mod_set;
+
+ msg->lchan = lchan;
+
+ DEBUGP(DRR, "TX CIPHERING MODE CMD\n");
+
+ if (lchan->encr.alg_id <= RSL_ENC_ALG_A5(0))
+ ciph_mod_set = 0;
+ else
+ ciph_mod_set = (lchan->encr.alg_id-2)<<1 | 1;
+
+ gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
+ gh->proto_discr = GSM48_PDISC_RR;
+ gh->msg_type = GSM48_MT_RR_CIPH_M_CMD;
+ gh->data[0] = (want_imeisv & 0x1) << 4 | (ciph_mod_set & 0xf);
+
+ return rsl_encryption_cmd(msg);
+}
+
+static void gsm48_cell_desc(struct gsm48_cell_desc *cd,
+ const struct gsm_bts *bts)
+{
+ cd->ncc = (bts->bsic >> 3 & 0x7);
+ cd->bcc = (bts->bsic & 0x7);
+ cd->arfcn_hi = bts->c0->arfcn >> 8;
+ cd->arfcn_lo = bts->c0->arfcn & 0xff;
+}
+
+#define GSM48_HOCMD_CCHDESC_LEN 16
+
+/* Chapter 9.1.15: Handover Command */
+int gsm48_send_ho_cmd(struct gsm_lchan *old_lchan, struct gsm_lchan *new_lchan,
+ uint8_t power_command, uint8_t ho_ref)
+{
+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 HO CMD");
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+ struct gsm48_ho_cmd *ho =
+ (struct gsm48_ho_cmd *) msgb_put(msg, sizeof(*ho));
+
+ msg->lchan = old_lchan;
+ gh->proto_discr = GSM48_PDISC_RR;
+ gh->msg_type = GSM48_MT_RR_HANDO_CMD;
+
+ /* mandatory bits */
+ gsm48_cell_desc(&ho->cell_desc, new_lchan->ts->trx->bts);
+ gsm48_lchan2chan_desc(&ho->chan_desc, new_lchan);
+ ho->ho_ref = ho_ref;
+ ho->power_command = power_command;
+
+ if (new_lchan->ts->hopping.enabled) {
+ struct gsm_bts *bts = new_lchan->ts->trx->bts;
+ struct gsm48_system_information_type_1 *si1;
+ uint8_t *cur;
+
+ si1 = GSM_BTS_SI(bts, SYSINFO_TYPE_1);
+ /* Copy the Cell Chan Desc (ARFCNS in this cell) */
+ msgb_put_u8(msg, GSM48_IE_CELL_CH_DESC);
+ cur = msgb_put(msg, GSM48_HOCMD_CCHDESC_LEN);
+ memcpy(cur, si1->cell_channel_description,
+ GSM48_HOCMD_CCHDESC_LEN);
+ /* Copy the Mobile Allocation */
+ msgb_tlv_put(msg, GSM48_IE_MA_BEFORE,
+ new_lchan->ts->hopping.ma_len,
+ new_lchan->ts->hopping.ma_data);
+ }
+ /* FIXME: optional bits for type of synchronization? */
+
+ msgb_tv_put(msg, GSM48_IE_CHANMODE_1, new_lchan->tch_mode);
+
+ /* in case of multi rate we need to attach a config */
+ if (new_lchan->tch_mode == GSM48_CMODE_SPEECH_AMR)
+ msgb_tlv_put(msg, GSM48_IE_MUL_RATE_CFG, new_lchan->mr_ms_lv[0],
+ new_lchan->mr_ms_lv + 1);
+
+ return gsm48_sendmsg(msg);
+}
+
+static void mr_config_for_ms(struct gsm_lchan *lchan, struct msgb *msg)
+{
+ if (lchan->tch_mode == GSM48_CMODE_SPEECH_AMR)
+ msgb_tlv_put(msg, GSM48_IE_MUL_RATE_CFG, lchan->mr_ms_lv[0],
+ lchan->mr_ms_lv + 1);
+}
+
+/* Chapter 9.1.2: Assignment Command */
+int gsm48_send_rr_ass_cmd(struct gsm_lchan *dest_lchan, struct gsm_lchan *lchan, uint8_t power_command)
+{
+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 ASS CMD");
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+ struct gsm48_ass_cmd *ass =
+ (struct gsm48_ass_cmd *) msgb_put(msg, sizeof(*ass));
+
+ DEBUGP(DRR, "-> ASSIGNMENT COMMAND tch_mode=0x%02x\n", lchan->tch_mode);
+
+ msg->lchan = dest_lchan;
+ gh->proto_discr = GSM48_PDISC_RR;
+ gh->msg_type = GSM48_MT_RR_ASS_CMD;
+
+ /*
+ * fill the channel information element, this code
+ * should probably be shared with rsl_rx_chan_rqd(),
+ * gsm48_lchan_modify(). But beware that 10.5.2.5
+ * 10.5.2.5.a have slightly different semantic for
+ * the chan_desc. But as long as multi-slot configurations
+ * are not used we seem to be fine.
+ */
+ gsm48_lchan2chan_desc(&ass->chan_desc, lchan);
+ ass->power_command = power_command;
+
+ /* optional: cell channel description */
+
+ msgb_tv_put(msg, GSM48_IE_CHANMODE_1, lchan->tch_mode);
+
+ /* mobile allocation in case of hopping */
+ if (lchan->ts->hopping.enabled) {
+ msgb_tlv_put(msg, GSM48_IE_MA_BEFORE, lchan->ts->hopping.ma_len,
+ lchan->ts->hopping.ma_data);
+ }
+
+ /* in case of multi rate we need to attach a config */
+ mr_config_for_ms(lchan, msg);
+
+ return gsm48_sendmsg(msg);
+}
+
+/* 9.1.5 Channel mode modify: Modify the mode on the MS side */
+int gsm48_lchan_modify(struct gsm_lchan *lchan, uint8_t mode)
+{
+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CHN MOD");
+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+ struct gsm48_chan_mode_modify *cmm =
+ (struct gsm48_chan_mode_modify *) msgb_put(msg, sizeof(*cmm));
+
+ DEBUGP(DRR, "-> CHANNEL MODE MODIFY mode=0x%02x\n", mode);
+
+ lchan->tch_mode = mode;
+ msg->lchan = lchan;
+ gh->proto_discr = GSM48_PDISC_RR;
+ gh->msg_type = GSM48_MT_RR_CHAN_MODE_MODIF;
+
+ /* fill the channel information element, this code
+ * should probably be shared with rsl_rx_chan_rqd() */
+ gsm48_lchan2chan_desc(&cmm->chan_desc, lchan);
+ cmm->mode = mode;
+
+ /* in case of multi rate we need to attach a config */
+ mr_config_for_ms(lchan, msg);
+
+ return gsm48_sendmsg(msg);
+}
diff --git a/src/osmo-bsc/bsc_api.c b/src/osmo-bsc/bsc_api.c
index 2c799e3cb..eed475b34 100644
--- a/src/osmo-bsc/bsc_api.c
+++ b/src/osmo-bsc/bsc_api.c
@@ -195,312 +195,6 @@ int gsm0808_page(struct gsm_bts *bts, unsigned int page_group, unsigned int mi_l
return rsl_paging_cmd(bts, page_group, mi_len, mi, chan_type, false);
}
-static void handle_ass_compl(struct gsm_subscriber_connection *conn,
- struct msgb *msg)
-{
- struct gsm48_hdr *gh = msgb_l3(msg);
- enum gsm48_rr_cause cause;
-
- /* Expecting gsm48_hdr + cause value */
- if (msgb_l3len(msg) != sizeof(*gh) + 1) {
- LOGPLCHAN(msg->lchan, DRR, LOGL_ERROR,
- "RR Assignment Complete: length invalid: %u, expected %zu\n",
- msgb_l3len(msg), sizeof(*gh) + 1);
- return;
- }
-
- cause = gh->data[0];
-
- LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG, "ASSIGNMENT COMPLETE cause = %s\n",
- rr_cause_name(cause));
-
- if (conn->ho) {
- struct lchan_signal_data sig = {
- .lchan = msg->lchan,
- };
- osmo_signal_dispatch(SS_LCHAN, S_LCHAN_ASSIGNMENT_COMPL, &sig);
- /* FIXME: release old channel */
-
- /* send pending messages, if any */
- gscon_dtap_cache_flush(conn, 1);
-
- return;
- }
-
- if (conn->secondary_lchan != msg->lchan) {
- LOGPLCHAN(msg->lchan, DRR, LOGL_ERROR,
- "RR Assignment Complete does not match conn's secondary lchan.\n");
- return;
- }
-
- lchan_release(conn->lchan, 0, RSL_REL_LOCAL_END);
- conn->lchan = conn->secondary_lchan;
- conn->secondary_lchan = NULL;
-
- /* send pending messages, if any */
- gscon_dtap_cache_flush(conn, 1);
-
- if (is_ipaccess_bts(conn_get_bts(conn)) && conn->lchan->tch_mode != GSM48_CMODE_SIGN)
- rsl_ipacc_crcx(conn->lchan);
-
- bsc_assign_compl(conn, cause);
-}
-
-static void handle_ass_fail(struct gsm_subscriber_connection *conn,
- struct msgb *msg)
-{
- uint8_t *rr_failure;
- struct gsm48_hdr *gh;
-
- if (conn->ho) {
- struct lchan_signal_data sig;
- struct gsm48_hdr *gh = msgb_l3(msg);
-
- LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG, "ASSIGNMENT FAILED cause = %s\n",
- rr_cause_name(gh->data[0]));
-
- sig.lchan = msg->lchan;
- sig.mr = NULL;
- osmo_signal_dispatch(SS_LCHAN, S_LCHAN_ASSIGNMENT_FAIL, &sig);
- /* FIXME: release allocated new channel */
-
- /* send pending messages, if any */
- gscon_dtap_cache_flush(conn, 1);
-
- return;
- }
-
- if (conn->lchan != msg->lchan) {
- LOGPLCHAN(msg->lchan, DMSC, LOGL_ERROR,
- "Assignment failure should occur on primary lchan.\n");
- return;
- }
-
- /* stop the timer and release it */
- if (conn->secondary_lchan) {
- lchan_release(conn->secondary_lchan, 0, RSL_REL_LOCAL_END);
- conn->secondary_lchan = NULL;
- }
-
- /* send pending messages, if any */
- gscon_dtap_cache_flush(conn, 1);
-
- gh = msgb_l3(msg);
- if (msgb_l3len(msg) - sizeof(*gh) != 1) {
- LOGPLCHAN(conn->lchan, DMSC, LOGL_ERROR, "assignment failure unhandled: %zu\n",
- msgb_l3len(msg) - sizeof(*gh));
- rr_failure = NULL;
- } else {
- rr_failure = &gh->data[0];
- }
-
- bsc_assign_fail(conn, GSM0808_CAUSE_RADIO_INTERFACE_MESSAGE_FAILURE, rr_failure);
-}
-
-static void handle_classmark_chg(struct gsm_subscriber_connection *conn,
- struct msgb *msg)
-{
- struct gsm48_hdr *gh = msgb_l3(msg);
- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
- uint8_t cm2_len, cm3_len = 0;
- uint8_t *cm2, *cm3 = NULL;
-
- LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG, "CLASSMARK CHANGE ");
-
- /* classmark 2 */
- cm2_len = gh->data[0];
- cm2 = &gh->data[1];
- DEBUGPC(DRR, "CM2(len=%u) ", cm2_len);
-
- if (payload_len > cm2_len + 1) {
- /* we must have a classmark3 */
- if (gh->data[cm2_len+1] != 0x20) {
- DEBUGPC(DRR, "ERR CM3 TAG\n");
- return;
- }
- if (cm2_len > 3) {
- DEBUGPC(DRR, "CM2 too long!\n");
- return;
- }
-
- cm3_len = gh->data[cm2_len+2];
- cm3 = &gh->data[cm2_len+3];
- if (cm3_len > 14) {
- DEBUGPC(DRR, "CM3 len %u too long!\n", cm3_len);
- return;
- }
- DEBUGPC(DRR, "CM3(len=%u)\n", cm3_len);
- }
- bsc_cm_update(conn, cm2, cm2_len, cm3, cm3_len);
-}
-
-/* Chapter 9.1.16 Handover complete */
-static void handle_rr_ho_compl(struct msgb *msg)
-{
- struct lchan_signal_data sig;
- struct gsm48_hdr *gh = msgb_l3(msg);
-
- LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG,
- "HANDOVER COMPLETE cause = %s\n", rr_cause_name(gh->data[0]));
-
- sig.lchan = msg->lchan;
- sig.mr = NULL;
- osmo_signal_dispatch(SS_LCHAN, S_LCHAN_HANDOVER_COMPL, &sig);
- /* FIXME: release old channel */
-
- /* send pending messages, if any */
- gscon_dtap_cache_flush(msg->lchan->conn, 1);
-}
-
-/* Chapter 9.1.17 Handover Failure */
-static void handle_rr_ho_fail(struct msgb *msg)
-{
- struct lchan_signal_data sig;
- struct gsm48_hdr *gh = msgb_l3(msg);
-
- /* Log on both RR and HO categories: it is an RR message, but is still quite important when
- * filtering on HO. */
- LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG,
- "HANDOVER FAILED cause = %s\n", rr_cause_name(gh->data[0]));
- LOGPLCHAN(msg->lchan, DHO, LOGL_DEBUG,
- "HANDOVER FAILED cause = %s\n", rr_cause_name(gh->data[0]));
-
- sig.lchan = msg->lchan;
- sig.mr = NULL;
- osmo_signal_dispatch(SS_LCHAN, S_LCHAN_HANDOVER_FAIL, &sig);
- /* FIXME: release allocated new channel */
-
- /* send pending messages, if any */
- gscon_dtap_cache_flush(msg->lchan->conn, 1);
-}
-
-
-static void dispatch_dtap(struct gsm_subscriber_connection *conn,
- uint8_t link_id, struct msgb *msg)
-{
- struct gsm48_hdr *gh;
- uint8_t pdisc;
- uint8_t msg_type;
- int rc;
-
- if (msgb_l3len(msg) < sizeof(*gh)) {
- LOGP(DMSC, LOGL_ERROR, "(%s) Message too short for a GSM48 header.\n",
- bsc_subscr_name(conn->bsub));
- return;
- }
-
- gh = msgb_l3(msg);
- pdisc = gsm48_hdr_pdisc(gh);
- msg_type = gsm48_hdr_msg_type(gh);
-
- /* the idea is to handle all RR messages here, and only hand
- * MM/CC/SMS-CP/LCS up to the MSC. Some messages like PAGING
- * RESPONSE or CM SERVICE REQUEST will not be covered here, as
- * they are only possible in the first L3 message of each L2
- * channel, i.e. 'conn' will not exist and gsm0408_rcvmsg()
- * will call api->compl_l3() for it */
- switch (pdisc) {
- case GSM48_PDISC_RR:
- switch (msg_type) {
- case GSM48_MT_RR_GPRS_SUSP_REQ:
- LOGPLCHAN(msg->lchan, DRR, LOGL_DEBUG,
- "%s\n", gsm48_rr_msg_name(GSM48_MT_RR_GPRS_SUSP_REQ));
- break;
- case GSM48_MT_RR_STATUS:
- LOGPLCHAN(msg->lchan, DRR, LOGL_NOTICE,
- "%s (cause: %s)\n", gsm48_rr_msg_name(GSM48_MT_RR_STATUS),
- rr_cause_name(gh->data[0]));
- break;
- case GSM48_MT_RR_MEAS_REP:
- /* This shouldn't actually end up here, as RSL treats
- * L3 Info of 08.58 MEASUREMENT REPORT different by calling
- * directly into gsm48_parse_meas_rep */
- LOGPLCHAN(msg->lchan, DMEAS, LOGL_ERROR,
- "DIRECT GSM48 MEASUREMENT REPORT ?!?\n");
- gsm48_tx_rr_status(conn, GSM48_RR_CAUSE_MSG_TYPE_N_COMPAT);
- break;
- case GSM48_MT_RR_HANDO_COMPL:
- handle_rr_ho_compl(msg);
- break;
- case GSM48_MT_RR_HANDO_FAIL:
- handle_rr_ho_fail(msg);
- break;
- case GSM48_MT_RR_CIPH_M_COMPL:
- bsc_cipher_mode_compl(conn, msg, conn->lchan->encr.alg_id);
- break;
- case GSM48_MT_RR_ASS_COMPL:
- handle_ass_compl(conn, msg);
- break;
- case GSM48_MT_RR_ASS_FAIL:
- handle_ass_fail(conn, msg);
- break;
- case GSM48_MT_RR_CHAN_MODE_MODIF_ACK:
- rc = gsm48_rx_rr_modif_ack(msg);
- if (rc < 0)
- bsc_assign_fail(conn, GSM0808_CAUSE_NO_RADIO_RESOURCE_AVAILABLE, NULL);
- else
- bsc_assign_compl(conn, 0);
- break;
- case GSM48_MT_RR_CLSM_CHG:
- handle_classmark_chg(conn, msg);
- break;
- case GSM48_MT_RR_APP_INFO:
- /* Passing RR APP INFO to MSC, not quite
- * according to spec */
- bsc_dtap(conn, link_id, msg);
- break;
- default:
- /* Drop unknown RR message */
- LOGPLCHAN(msg->lchan, DRR, LOGL_NOTICE,
- "Dropping %s 04.08 RR message\n", gsm48_rr_msg_name(msg_type));
- gsm48_tx_rr_status(conn, GSM48_RR_CAUSE_MSG_TYPE_N);
- break;
- }
- break;
- default:
- bsc_dtap(conn, link_id, msg);
- break;
- }
-}
-
-/*! \brief RSL has received a DATA INDICATION with L3 from MS */
-int gsm0408_rcvmsg(struct msgb *msg, uint8_t link_id)
-{
- int rc;
- struct gsm_lchan *lchan;
-
- lchan = msg->lchan;
- if (lchan->state != LCHAN_S_ACTIVE) {
- LOGPLCHAN(msg->lchan, DRSL, LOGL_INFO, "Got data in non active state, discarding.\n");
- return -1;
- }
-
-
- if (lchan->conn) {
- /* if we already have a connection, forward via DTAP to
- * MSC */
- dispatch_dtap(lchan->conn, link_id, msg);
- } else {
- /* allocate a new connection */
- rc = BSC_API_CONN_POL_REJECT;
- lchan->conn = bsc_subscr_con_allocate(msg->lchan->ts->trx->bts->network);
- if (!lchan->conn) {
- lchan_release(lchan, 1, RSL_REL_NORMAL);
- return -1;
- }
- lchan->conn->lchan = lchan;
-
- /* fwd via bsc_api to send COMPLETE L3 INFO to MSC */
- rc = bsc_compl_l3(lchan->conn, msg, 0);
-
- if (rc != BSC_API_CONN_POL_ACCEPT) {
- //osmo_fsm_inst_dispatch(lchan->conn->fi, FIXME, NULL);
- }
- }
-
- return 0;
-}
-
/*! \brief We received a GSM 08.08 CIPHER MODE from the MSC */
int gsm0808_cipher_mode(struct gsm_subscriber_connection *conn, int cipher,
const uint8_t *key, int len, int include_imeisv)
diff --git a/src/osmo-bsc/gsm_04_08_utils.c b/src/osmo-bsc/gsm_04_08_utils.c
index c54850081..c52239f28 100644
--- a/src/osmo-bsc/gsm_04_08_utils.c
+++ b/src/osmo-bsc/gsm_04_08_utils.c
@@ -41,15 +41,6 @@
* or should OpenBSC always act as RTP relay/proxy in between (0) ? */
int ipacc_rtp_direct = 1;
-static int gsm48_sendmsg(struct msgb *msg)
-{
- if (msg->lchan)
- msg->dst = msg->lchan->ts->trx->rsl_link;
-
- msg->l3h = msg->data;
- return rsl_data_request(msg, 0);
-}
-
/* Section 9.1.8 / Table 9.9 */
struct chreq {
uint8_t val;
@@ -225,83 +216,6 @@ int get_reason_by_chreq(uint8_t ra, int neci)
return GSM_CHREQ_REASON_OTHER;
}
-static void mr_config_for_ms(struct gsm_lchan *lchan, struct msgb *msg)
-{
- if (lchan->tch_mode == GSM48_CMODE_SPEECH_AMR)
- msgb_tlv_put(msg, GSM48_IE_MUL_RATE_CFG, lchan->mr_ms_lv[0],
- lchan->mr_ms_lv + 1);
-}
-
-/* 7.1.7 and 9.1.7: RR CHANnel RELease */
-int gsm48_send_rr_release(struct gsm_lchan *lchan)
-{
- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 RR REL");
- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
- uint8_t *cause;
-
- msg->lchan = lchan;
- gh->proto_discr = GSM48_PDISC_RR;
- gh->msg_type = GSM48_MT_RR_CHAN_REL;
-
- cause = msgb_put(msg, 1);
- cause[0] = GSM48_RR_CAUSE_NORMAL;
-
- DEBUGP(DRR, "Sending Channel Release: Chan: Number: %d Type: %d\n",
- lchan->nr, lchan->type);
-
- /* Send actual release request to MS */
- return gsm48_sendmsg(msg);
-}
-
-int send_siemens_mrpci(struct gsm_lchan *lchan,
- uint8_t *classmark2_lv)
-{
- struct rsl_mrpci mrpci;
-
- if (classmark2_lv[0] < 2)
- return -EINVAL;
-
- mrpci.power_class = classmark2_lv[1] & 0x7;
- mrpci.vgcs_capable = classmark2_lv[2] & (1 << 1);
- mrpci.vbs_capable = classmark2_lv[2] & (1 <<2);
- mrpci.gsm_phase = (classmark2_lv[1]) >> 5 & 0x3;
-
- return rsl_siemens_mrpci(lchan, &mrpci);
-}
-
-/* Chapter 9.1.9: Ciphering Mode Command */
-int gsm48_send_rr_ciph_mode(struct gsm_lchan *lchan, int want_imeisv)
-{
- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CIPH");
- struct gsm48_hdr *gh;
- uint8_t ciph_mod_set;
-
- msg->lchan = lchan;
-
- DEBUGP(DRR, "TX CIPHERING MODE CMD\n");
-
- if (lchan->encr.alg_id <= RSL_ENC_ALG_A5(0))
- ciph_mod_set = 0;
- else
- ciph_mod_set = (lchan->encr.alg_id-2)<<1 | 1;
-
- gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
- gh->proto_discr = GSM48_PDISC_RR;
- gh->msg_type = GSM48_MT_RR_CIPH_M_CMD;
- gh->data[0] = (want_imeisv & 0x1) << 4 | (ciph_mod_set & 0xf);
-
- return rsl_encryption_cmd(msg);
-}
-
-static void gsm48_cell_desc(struct gsm48_cell_desc *cd,
- const struct gsm_bts *bts)
-{
- cd->ncc = (bts->bsic >> 3 & 0x7);
- cd->bcc = (bts->bsic & 0x7);
- cd->arfcn_hi = bts->c0->arfcn >> 8;
- cd->arfcn_lo = bts->c0->arfcn & 0xff;
-}
-
/*! \brief Encode a TS 04.08 multirate config LV according to 10.5.2.21aa
* \param[out] lv caller-allocated buffer of 7 bytes. First octet is IS length
* \param[in] mr multi-rate configuration to encode
@@ -347,166 +261,6 @@ int gsm48_multirate_config(uint8_t *lv, const struct amr_multirate_conf *mr, con
return 0;
}
-#define GSM48_HOCMD_CCHDESC_LEN 16
-
-/* Chapter 9.1.15: Handover Command */
-int gsm48_send_ho_cmd(struct gsm_lchan *old_lchan, struct gsm_lchan *new_lchan,
- uint8_t power_command, uint8_t ho_ref)
-{
- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 HO CMD");
- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
- struct gsm48_ho_cmd *ho =
- (struct gsm48_ho_cmd *) msgb_put(msg, sizeof(*ho));
-
- msg->lchan = old_lchan;
- gh->proto_discr = GSM48_PDISC_RR;
- gh->msg_type = GSM48_MT_RR_HANDO_CMD;
-
- /* mandatory bits */
- gsm48_cell_desc(&ho->cell_desc, new_lchan->ts->trx->bts);
- gsm48_lchan2chan_desc(&ho->chan_desc, new_lchan);
- ho->ho_ref = ho_ref;
- ho->power_command = power_command;
-
- if (new_lchan->ts->hopping.enabled) {
- struct gsm_bts *bts = new_lchan->ts->trx->bts;
- struct gsm48_system_information_type_1 *si1;
- uint8_t *cur;
-
- si1 = GSM_BTS_SI(bts, SYSINFO_TYPE_1);
- /* Copy the Cell Chan Desc (ARFCNS in this cell) */
- msgb_put_u8(msg, GSM48_IE_CELL_CH_DESC);
- cur = msgb_put(msg, GSM48_HOCMD_CCHDESC_LEN);
- memcpy(cur, si1->cell_channel_description,
- GSM48_HOCMD_CCHDESC_LEN);
- /* Copy the Mobile Allocation */
- msgb_tlv_put(msg, GSM48_IE_MA_BEFORE,
- new_lchan->ts->hopping.ma_len,
- new_lchan->ts->hopping.ma_data);
- }
- /* FIXME: optional bits for type of synchronization? */
-
- msgb_tv_put(msg, GSM48_IE_CHANMODE_1, new_lchan->tch_mode);
-
- /* in case of multi rate we need to attach a config */
- if (new_lchan->tch_mode == GSM48_CMODE_SPEECH_AMR)
- msgb_tlv_put(msg, GSM48_IE_MUL_RATE_CFG, new_lchan->mr_ms_lv[0],
- new_lchan->mr_ms_lv + 1);
-
- return gsm48_sendmsg(msg);
-}
-
-/* Chapter 9.1.2: Assignment Command */
-int gsm48_send_rr_ass_cmd(struct gsm_lchan *dest_lchan, struct gsm_lchan *lchan, uint8_t power_command)
-{
- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 ASS CMD");
- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
- struct gsm48_ass_cmd *ass =
- (struct gsm48_ass_cmd *) msgb_put(msg, sizeof(*ass));
-
- DEBUGP(DRR, "-> ASSIGNMENT COMMAND tch_mode=0x%02x\n", lchan->tch_mode);
-
- msg->lchan = dest_lchan;
- gh->proto_discr = GSM48_PDISC_RR;
- gh->msg_type = GSM48_MT_RR_ASS_CMD;
-
- /*
- * fill the channel information element, this code
- * should probably be shared with rsl_rx_chan_rqd(),
- * gsm48_lchan_modify(). But beware that 10.5.2.5
- * 10.5.2.5.a have slightly different semantic for
- * the chan_desc. But as long as multi-slot configurations
- * are not used we seem to be fine.
- */
- gsm48_lchan2chan_desc(&ass->chan_desc, lchan);
- ass->power_command = power_command;
-
- /* optional: cell channel description */
-
- msgb_tv_put(msg, GSM48_IE_CHANMODE_1, lchan->tch_mode);
-
- /* mobile allocation in case of hopping */
- if (lchan->ts->hopping.enabled) {
- msgb_tlv_put(msg, GSM48_IE_MA_BEFORE, lchan->ts->hopping.ma_len,
- lchan->ts->hopping.ma_data);
- }
-
- /* in case of multi rate we need to attach a config */
- mr_config_for_ms(lchan, msg);
-
- return gsm48_sendmsg(msg);
-}
-
-/* 9.1.5 Channel mode modify: Modify the mode on the MS side */
-int gsm48_lchan_modify(struct gsm_lchan *lchan, uint8_t mode)
-{
- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CHN MOD");
- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
- struct gsm48_chan_mode_modify *cmm =
- (struct gsm48_chan_mode_modify *) msgb_put(msg, sizeof(*cmm));
-
- DEBUGP(DRR, "-> CHANNEL MODE MODIFY mode=0x%02x\n", mode);
-
- lchan->tch_mode = mode;
- msg->lchan = lchan;
- gh->proto_discr = GSM48_PDISC_RR;
- gh->msg_type = GSM48_MT_RR_CHAN_MODE_MODIF;
-
- /* fill the channel information element, this code
- * should probably be shared with rsl_rx_chan_rqd() */
- gsm48_lchan2chan_desc(&cmm->chan_desc, lchan);
- cmm->mode = mode;
-
- /* in case of multi rate we need to attach a config */
- mr_config_for_ms(lchan, msg);
-
- return gsm48_sendmsg(msg);
-}
-
-int gsm48_rx_rr_modif_ack(struct msgb *msg)
-{
- int rc;
- struct gsm48_hdr *gh = msgb_l3(msg);
- struct gsm48_chan_mode_modify *mod =
- (struct gsm48_chan_mode_modify *) gh->data;
-
- DEBUGP(DRR, "CHANNEL MODE MODIFY ACK\n");
-
- if (mod->mode != msg->lchan->tch_mode) {
- LOGP(DRR, LOGL_ERROR, "CHANNEL MODE change failed. Wanted: %d Got: %d\n",
- msg->lchan->tch_mode, mod->mode);
- return -1;
- }
-
- /* update the channel type */
- switch (mod->mode) {
- case GSM48_CMODE_SIGN:
- msg->lchan->rsl_cmode = RSL_CMOD_SPD_SIGN;
- break;
- case GSM48_CMODE_SPEECH_V1:
- case GSM48_CMODE_SPEECH_EFR:
- case GSM48_CMODE_SPEECH_AMR:
- msg->lchan->rsl_cmode = RSL_CMOD_SPD_SPEECH;
- break;
- case GSM48_CMODE_DATA_14k5:
- case GSM48_CMODE_DATA_12k0:
- case GSM48_CMODE_DATA_6k0:
- case GSM48_CMODE_DATA_3k6:
- msg->lchan->rsl_cmode = RSL_CMOD_SPD_DATA;
- break;
- }
-
- /* We've successfully modified the MS side of the channel,
- * now go on to modify the BTS side of the channel */
- rc = rsl_chan_mode_modify_req(msg->lchan);
-
- /* FIXME: we not only need to do this after mode modify, but
- * also after channel activation */
- if (is_ipaccess_bts(msg->lchan->ts->trx->bts) && mod->mode != GSM48_CMODE_SIGN)
- rsl_ipacc_crcx(msg->lchan);
- return rc;
-}
-
int gsm48_parse_meas_rep(struct gsm_meas_rep *rep, struct msgb *msg)
{
struct gsm48_hdr *gh = msgb_l3(msg);
@@ -622,34 +376,6 @@ int gsm48_tx_mm_serv_rej(struct gsm_subscriber_connection *conn,
return 0;
}
-/* 9.1.29 RR Status */
-struct msgb *gsm48_create_rr_status(uint8_t cause)
-{
- struct msgb *msg;
- struct gsm48_hdr *gh;
-
- msg = gsm48_msgb_alloc_name("GSM 04.08 RR STATUS");
- if (!msg)
- return NULL;
-
- gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
- gh->proto_discr = GSM48_PDISC_RR;
- gh->msg_type = GSM48_MT_RR_STATUS;
- gh->data[0] = cause;
-
- return msg;
-}
-
-/* 9.1.29 RR Status */
-int gsm48_tx_rr_status(struct gsm_subscriber_connection *conn, uint8_t cause)
-{
- struct msgb *msg = gsm48_create_rr_status(cause);
- if (!msg)
- return -1;
- gscon_submit_rsl_dtap(conn, msg, 0, 0);
- return 0;
-}
-
struct msgb *gsm48_create_mm_serv_rej(enum gsm48_reject_value value)
{
struct msgb *msg;