2010-03-29 06:47:44 +00:00
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/* GSM Radio Signalling Link messages on the A-bis interface
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2008-12-23 20:25:15 +00:00
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* 3GPP TS 08.58 version 8.6.0 Release 1999 / ETSI TS 100 596 V8.6.0 */
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2010-03-04 09:33:10 +00:00
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/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
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2008-12-25 23:28:35 +00:00
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*
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2008-12-23 20:25:15 +00:00
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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2011-01-01 14:25:50 +00:00
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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2008-12-23 20:25:15 +00:00
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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2011-01-01 14:25:50 +00:00
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* GNU Affero General Public License for more details.
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2008-12-23 20:25:15 +00:00
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*
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2011-01-01 14:25:50 +00:00
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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2008-12-23 20:25:15 +00:00
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*
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*/
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#include <stdio.h>
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2008-12-25 23:28:35 +00:00
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#include <stdlib.h>
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2008-12-23 20:25:15 +00:00
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#include <errno.h>
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2009-02-16 21:12:08 +00:00
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#include <netinet/in.h>
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2009-02-17 14:35:45 +00:00
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#include <arpa/inet.h>
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2008-12-23 20:25:15 +00:00
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2008-12-25 23:28:35 +00:00
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#include <openbsc/gsm_data.h>
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#include <openbsc/gsm_04_08.h>
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2011-03-22 15:47:59 +00:00
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#include <osmocom/gsm/gsm_utils.h>
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2008-12-25 23:28:35 +00:00
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#include <openbsc/abis_rsl.h>
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#include <openbsc/chan_alloc.h>
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2009-08-09 11:47:35 +00:00
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#include <openbsc/bsc_rll.h>
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2008-12-25 23:28:35 +00:00
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#include <openbsc/debug.h>
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2011-03-22 15:47:59 +00:00
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#include <osmocom/gsm/tlv.h>
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2009-02-10 00:06:19 +00:00
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#include <openbsc/paging.h>
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2009-02-17 14:35:45 +00:00
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#include <openbsc/signal.h>
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2009-11-29 18:07:28 +00:00
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#include <openbsc/meas_rep.h>
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2009-12-20 14:42:44 +00:00
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#include <openbsc/rtp_proxy.h>
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2011-03-22 15:47:59 +00:00
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#include <osmocom/gsm/rsl.h>
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2008-12-23 20:25:15 +00:00
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2011-03-22 15:47:59 +00:00
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#include <osmocom/core/talloc.h>
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2010-06-22 04:11:59 +00:00
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2008-12-25 23:28:35 +00:00
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#define RSL_ALLOC_SIZE 1024
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#define RSL_ALLOC_HEADROOM 128
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2008-12-23 20:25:15 +00:00
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2009-02-04 00:31:39 +00:00
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#define MAX(a, b) (a) >= (b) ? (a) : (b)
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2010-06-22 04:11:59 +00:00
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static int rsl_send_imm_assignment(struct gsm_lchan *lchan);
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2010-12-27 12:28:20 +00:00
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static void send_lchan_signal(int sig_no, struct gsm_lchan *lchan,
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struct gsm_meas_rep *resp)
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{
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struct lchan_signal_data sig;
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sig.lchan = lchan;
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sig.mr = resp;
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2011-05-06 10:12:31 +00:00
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osmo_signal_dispatch(SS_LCHAN, sig_no, &sig);
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2010-12-27 12:28:20 +00:00
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}
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2011-04-18 15:04:00 +00:00
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static uint8_t mdisc_by_msgtype(uint8_t msg_type)
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2008-12-23 20:25:15 +00:00
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{
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/* mask off the transparent bit ? */
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msg_type &= 0xfe;
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2008-12-25 23:28:35 +00:00
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if ((msg_type & 0xf0) == 0x00)
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2008-12-23 20:25:15 +00:00
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return ABIS_RSL_MDISC_RLL;
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2008-12-25 23:28:35 +00:00
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if ((msg_type & 0xf0) == 0x10) {
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2008-12-23 20:25:15 +00:00
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if (msg_type >= 0x19 && msg_type <= 0x22)
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return ABIS_RSL_MDISC_TRX;
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else
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return ABIS_RSL_MDISC_COM_CHAN;
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}
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2008-12-27 19:46:06 +00:00
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if ((msg_type & 0xe0) == 0x20)
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2008-12-23 20:25:15 +00:00
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return ABIS_RSL_MDISC_DED_CHAN;
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return ABIS_RSL_MDISC_LOC;
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}
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static inline void init_dchan_hdr(struct abis_rsl_dchan_hdr *dh,
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2011-04-18 15:04:00 +00:00
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uint8_t msg_type)
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2008-12-23 20:25:15 +00:00
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{
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dh->c.msg_discr = mdisc_by_msgtype(msg_type);
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dh->c.msg_type = msg_type;
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dh->ie_chan = RSL_IE_CHAN_NR;
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}
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2008-12-25 23:28:35 +00:00
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/* determine logical channel based on TRX and channel number IE */
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2011-04-18 15:04:00 +00:00
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struct gsm_lchan *lchan_lookup(struct gsm_bts_trx *trx, uint8_t chan_nr)
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2008-12-25 23:28:35 +00:00
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{
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struct gsm_lchan *lchan;
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2011-04-18 15:04:00 +00:00
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uint8_t ts_nr = chan_nr & 0x07;
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uint8_t cbits = chan_nr >> 3;
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uint8_t lch_idx;
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2008-12-25 23:28:35 +00:00
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struct gsm_bts_trx_ts *ts = &trx->ts[ts_nr];
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if (cbits == 0x01) {
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lch_idx = 0; /* TCH/F */
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2009-10-24 08:25:50 +00:00
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if (ts->pchan != GSM_PCHAN_TCH_F &&
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ts->pchan != GSM_PCHAN_PDCH &&
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ts->pchan != GSM_PCHAN_TCH_F_PDCH)
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2009-12-17 22:10:46 +00:00
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LOGP(DRSL, LOGL_ERROR, "chan_nr=0x%02x but pchan=%u\n",
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2008-12-25 23:28:35 +00:00
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chan_nr, ts->pchan);
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} else if ((cbits & 0x1e) == 0x02) {
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lch_idx = cbits & 0x1; /* TCH/H */
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if (ts->pchan != GSM_PCHAN_TCH_H)
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2009-12-17 22:10:46 +00:00
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LOGP(DRSL, LOGL_ERROR, "chan_nr=0x%02x but pchan=%u\n",
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2008-12-25 23:28:35 +00:00
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chan_nr, ts->pchan);
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} else if ((cbits & 0x1c) == 0x04) {
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lch_idx = cbits & 0x3; /* SDCCH/4 */
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if (ts->pchan != GSM_PCHAN_CCCH_SDCCH4)
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2009-12-17 22:10:46 +00:00
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LOGP(DRSL, LOGL_ERROR, "chan_nr=0x%02x but pchan=%u\n",
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2008-12-25 23:28:35 +00:00
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chan_nr, ts->pchan);
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} else if ((cbits & 0x18) == 0x08) {
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lch_idx = cbits & 0x7; /* SDCCH/8 */
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if (ts->pchan != GSM_PCHAN_SDCCH8_SACCH8C)
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2009-12-17 22:10:46 +00:00
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LOGP(DRSL, LOGL_ERROR, "chan_nr=0x%02x but pchan=%u\n",
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2008-12-25 23:28:35 +00:00
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chan_nr, ts->pchan);
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} else if (cbits == 0x10 || cbits == 0x11 || cbits == 0x12) {
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lch_idx = 0;
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if (ts->pchan != GSM_PCHAN_CCCH &&
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ts->pchan != GSM_PCHAN_CCCH_SDCCH4)
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2009-12-17 22:10:46 +00:00
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LOGP(DRSL, LOGL_ERROR, "chan_nr=0x%02x but pchan=%u\n",
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2008-12-25 23:28:35 +00:00
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chan_nr, ts->pchan);
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/* FIXME: we should not return first sdcch4 !!! */
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} else {
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2009-12-17 22:10:46 +00:00
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LOGP(DRSL, LOGL_ERROR, "unknown chan_nr=0x%02x\n", chan_nr);
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2008-12-25 23:28:35 +00:00
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return NULL;
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}
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lchan = &ts->lchan[lch_idx];
|
2010-03-26 13:28:59 +00:00
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log_set_context(BSC_CTX_LCHAN, lchan);
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2010-06-28 07:47:12 +00:00
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if (lchan->conn)
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log_set_context(BSC_CTX_SUBSCR, lchan->conn->subscr);
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2008-12-25 23:28:35 +00:00
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return lchan;
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}
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2009-10-22 09:47:45 +00:00
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/* See Table 10.5.25 of GSM04.08 */
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2011-04-18 15:04:00 +00:00
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static uint8_t ts2chan_nr(const struct gsm_bts_trx_ts *ts, uint8_t lchan_nr)
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2008-12-25 23:28:35 +00:00
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{
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2011-04-18 15:04:00 +00:00
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uint8_t cbits, chan_nr;
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2008-12-25 23:28:35 +00:00
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switch (ts->pchan) {
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case GSM_PCHAN_TCH_F:
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2009-10-24 08:25:50 +00:00
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case GSM_PCHAN_PDCH:
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case GSM_PCHAN_TCH_F_PDCH:
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2008-12-25 23:28:35 +00:00
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cbits = 0x01;
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break;
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case GSM_PCHAN_TCH_H:
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cbits = 0x02;
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2010-12-23 11:59:52 +00:00
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cbits += lchan_nr;
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2008-12-25 23:28:35 +00:00
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break;
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case GSM_PCHAN_CCCH_SDCCH4:
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cbits = 0x04;
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2010-12-23 11:59:52 +00:00
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cbits += lchan_nr;
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2008-12-25 23:28:35 +00:00
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break;
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case GSM_PCHAN_SDCCH8_SACCH8C:
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cbits = 0x08;
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2010-12-23 11:59:52 +00:00
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cbits += lchan_nr;
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2008-12-25 23:28:35 +00:00
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break;
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default:
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case GSM_PCHAN_CCCH:
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cbits = 0x10;
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break;
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}
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chan_nr = (cbits << 3) | (ts->nr & 0x7);
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return chan_nr;
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}
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2011-04-18 15:04:00 +00:00
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uint8_t lchan2chan_nr(const struct gsm_lchan *lchan)
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2010-12-23 11:59:52 +00:00
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{
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return ts2chan_nr(lchan->ts, lchan->nr);
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}
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2008-12-23 20:25:15 +00:00
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/* As per TS 03.03 Section 2.2, the IMSI has 'not more than 15 digits' */
|
2011-04-18 15:04:00 +00:00
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uint64_t str_to_imsi(const char *imsi_str)
|
2008-12-23 20:25:15 +00:00
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{
|
2011-04-18 15:04:00 +00:00
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uint64_t ret;
|
2008-12-23 20:25:15 +00:00
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ret = strtoull(imsi_str, NULL, 10);
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return ret;
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}
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/* Table 5 Clause 7 TS 05.02 */
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unsigned int n_pag_blocks(int bs_ccch_sdcch_comb, unsigned int bs_ag_blks_res)
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{
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if (!bs_ccch_sdcch_comb)
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return 9 - bs_ag_blks_res;
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else
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return 3 - bs_ag_blks_res;
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}
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/* Chapter 6.5.2 of TS 05.02 */
|
2011-04-18 15:04:00 +00:00
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unsigned int get_ccch_group(uint64_t imsi, unsigned int bs_cc_chans,
|
2008-12-23 20:25:15 +00:00
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unsigned int n_pag_blocks)
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{
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return (imsi % 1000) % (bs_cc_chans * n_pag_blocks) / n_pag_blocks;
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}
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/* Chapter 6.5.2 of TS 05.02 */
|
2011-04-18 15:04:00 +00:00
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unsigned int get_paging_group(uint64_t imsi, unsigned int bs_cc_chans,
|
2008-12-23 20:25:15 +00:00
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int n_pag_blocks)
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{
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return (imsi % 1000) % (bs_cc_chans * n_pag_blocks) % n_pag_blocks;
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}
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|
2008-12-25 23:28:35 +00:00
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static struct msgb *rsl_msgb_alloc(void)
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{
|
2009-06-26 17:39:35 +00:00
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return msgb_alloc_headroom(RSL_ALLOC_SIZE, RSL_ALLOC_HEADROOM,
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"RSL");
|
2008-12-25 23:28:35 +00:00
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}
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|
2009-02-15 14:36:38 +00:00
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#define MACBLOCK_SIZE 23
|
2011-04-18 15:04:00 +00:00
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static void pad_macblock(uint8_t *out, const uint8_t *in, int len)
|
2009-02-15 14:36:38 +00:00
|
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{
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memcpy(out, in, len);
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if (len < MACBLOCK_SIZE)
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memset(out+len, 0x2b, MACBLOCK_SIZE-len);
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}
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|
2009-08-30 06:37:11 +00:00
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/* Chapter 9.3.7: Encryption Information */
|
2011-04-18 15:04:00 +00:00
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static int build_encr_info(uint8_t *out, struct gsm_lchan *lchan)
|
2009-08-30 06:37:11 +00:00
|
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|
{
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|
*out++ = lchan->encr.alg_id & 0xff;
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|
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if (lchan->encr.key_len)
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memcpy(out, lchan->encr.key, lchan->encr.key_len);
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return lchan->encr.key_len + 1;
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}
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|
2011-04-18 15:04:00 +00:00
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|
static void print_rsl_cause(int lvl, const uint8_t *cause_v, uint8_t cause_len)
|
2009-07-28 15:58:09 +00:00
|
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|
{
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int i;
|
2009-02-23 00:02:59 +00:00
|
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|
2009-12-24 11:20:20 +00:00
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LOGPC(DRSL, lvl, "CAUSE=0x%02x(%s) ",
|
2009-07-28 15:58:09 +00:00
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|
cause_v[0], rsl_err_name(cause_v[0]));
|
2010-03-29 06:47:44 +00:00
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|
for (i = 1; i < cause_len-1; i++)
|
2009-12-24 11:20:20 +00:00
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|
LOGPC(DRSL, lvl, "%02x ", cause_v[i]);
|
2009-02-23 00:02:59 +00:00
|
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|
}
|
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|
2008-12-23 20:25:15 +00:00
|
|
|
/* Send a BCCH_INFO message as per Chapter 8.5.1 */
|
2011-04-18 15:04:00 +00:00
|
|
|
int rsl_bcch_info(struct gsm_bts_trx *trx, uint8_t type,
|
|
|
|
const uint8_t *data, int len)
|
2008-12-23 20:25:15 +00:00
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
2008-12-25 23:28:35 +00:00
|
|
|
struct msgb *msg = rsl_msgb_alloc();
|
2008-12-23 20:25:15 +00:00
|
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|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof*dh);
|
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|
|
init_dchan_hdr(dh, RSL_MT_BCCH_INFO);
|
|
|
|
dh->chan_nr = RSL_CHAN_BCCH;
|
|
|
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|
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|
|
msgb_tv_put(msg, RSL_IE_SYSINFO_TYPE, type);
|
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|
|
msgb_tlv_put(msg, RSL_IE_FULL_BCCH_INFO, len, data);
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|
|
|
2009-02-07 00:48:17 +00:00
|
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|
msg->trx = trx;
|
2008-12-25 23:28:35 +00:00
|
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|
|
return abis_rsl_sendmsg(msg);
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
|
|
|
|
2011-04-18 15:04:00 +00:00
|
|
|
int rsl_sacch_filling(struct gsm_bts_trx *trx, uint8_t type,
|
|
|
|
const uint8_t *data, int len)
|
2008-12-23 20:25:15 +00:00
|
|
|
{
|
|
|
|
struct abis_rsl_common_hdr *ch;
|
2008-12-25 23:28:35 +00:00
|
|
|
struct msgb *msg = rsl_msgb_alloc();
|
2008-12-23 20:25:15 +00:00
|
|
|
|
|
|
|
ch = (struct abis_rsl_common_hdr *) msgb_put(msg, sizeof(*ch));
|
|
|
|
ch->msg_discr = ABIS_RSL_MDISC_TRX;
|
|
|
|
ch->msg_type = RSL_MT_SACCH_FILL;
|
|
|
|
|
|
|
|
msgb_tv_put(msg, RSL_IE_SYSINFO_TYPE, type);
|
2008-12-26 20:25:35 +00:00
|
|
|
msgb_tl16v_put(msg, RSL_IE_L3_INFO, len, data);
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2009-02-07 00:48:17 +00:00
|
|
|
msg->trx = trx;
|
2008-12-25 23:28:35 +00:00
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
|
|
|
|
2011-04-18 15:04:00 +00:00
|
|
|
int rsl_sacch_info_modify(struct gsm_lchan *lchan, uint8_t type,
|
|
|
|
const uint8_t *data, int len)
|
2011-01-13 22:16:03 +00:00
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
|
|
|
struct msgb *msg = rsl_msgb_alloc();
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t chan_nr = lchan2chan_nr(lchan);
|
2011-01-13 22:16:03 +00:00
|
|
|
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_SACCH_INFO_MODIFY);
|
|
|
|
dh->chan_nr = chan_nr;
|
|
|
|
|
|
|
|
msgb_tv_put(msg, RSL_IE_SYSINFO_TYPE, type);
|
|
|
|
msgb_tl16v_put(msg, RSL_IE_L3_INFO, len, data);
|
|
|
|
|
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
2009-06-20 16:15:19 +00:00
|
|
|
int rsl_chan_bs_power_ctrl(struct gsm_lchan *lchan, unsigned int fpc, int db)
|
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
2009-06-27 01:09:08 +00:00
|
|
|
struct msgb *msg;
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t chan_nr = lchan2chan_nr(lchan);
|
2009-06-20 16:15:19 +00:00
|
|
|
|
|
|
|
db = abs(db);
|
|
|
|
if (db > 30)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-06-27 01:09:08 +00:00
|
|
|
msg = rsl_msgb_alloc();
|
|
|
|
|
2009-06-20 16:15:19 +00:00
|
|
|
lchan->bs_power = db/2;
|
|
|
|
if (fpc)
|
|
|
|
lchan->bs_power |= 0x10;
|
|
|
|
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_BS_POWER_CONTROL);
|
|
|
|
dh->chan_nr = chan_nr;
|
|
|
|
|
|
|
|
msgb_tv_put(msg, RSL_IE_BS_POWER, lchan->bs_power);
|
|
|
|
|
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
|
|
|
int rsl_chan_ms_power_ctrl(struct gsm_lchan *lchan, unsigned int fpc, int dbm)
|
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
2009-06-27 01:09:08 +00:00
|
|
|
struct msgb *msg;
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t chan_nr = lchan2chan_nr(lchan);
|
2009-06-20 16:15:19 +00:00
|
|
|
int ctl_lvl;
|
|
|
|
|
2009-08-09 12:45:18 +00:00
|
|
|
ctl_lvl = ms_pwr_ctl_lvl(lchan->ts->trx->bts->band, dbm);
|
2009-06-20 16:15:19 +00:00
|
|
|
if (ctl_lvl < 0)
|
|
|
|
return ctl_lvl;
|
|
|
|
|
2009-06-27 01:09:08 +00:00
|
|
|
msg = rsl_msgb_alloc();
|
|
|
|
|
2009-06-20 16:15:19 +00:00
|
|
|
lchan->ms_power = ctl_lvl;
|
|
|
|
|
|
|
|
if (fpc)
|
|
|
|
lchan->ms_power |= 0x20;
|
|
|
|
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_MS_POWER_CONTROL);
|
|
|
|
dh->chan_nr = chan_nr;
|
|
|
|
|
|
|
|
msgb_tv_put(msg, RSL_IE_MS_POWER, lchan->ms_power);
|
|
|
|
|
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
2009-07-29 13:41:29 +00:00
|
|
|
static int channel_mode_from_lchan(struct rsl_ie_chan_mode *cm,
|
|
|
|
struct gsm_lchan *lchan)
|
|
|
|
{
|
|
|
|
memset(cm, 0, sizeof(cm));
|
|
|
|
|
|
|
|
/* FIXME: what to do with data calls ? */
|
2010-09-06 01:25:48 +00:00
|
|
|
if (lchan->ts->trx->bts->network->dtx_enabled)
|
|
|
|
cm->dtx_dtu = 0x03;
|
|
|
|
else
|
|
|
|
cm->dtx_dtu = 0x00;
|
2009-07-29 13:41:29 +00:00
|
|
|
|
|
|
|
/* set TCH Speech/Data */
|
|
|
|
cm->spd_ind = lchan->rsl_cmode;
|
|
|
|
|
2009-11-27 07:55:16 +00:00
|
|
|
if (lchan->rsl_cmode == RSL_CMOD_SPD_SIGN &&
|
|
|
|
lchan->tch_mode != GSM48_CMODE_SIGN)
|
2009-12-17 22:10:46 +00:00
|
|
|
LOGP(DRSL, LOGL_ERROR, "unsupported: rsl_mode == signalling, "
|
2009-11-27 07:55:16 +00:00
|
|
|
"but tch_mode != signalling\n");
|
|
|
|
|
2009-07-29 13:41:29 +00:00
|
|
|
switch (lchan->type) {
|
|
|
|
case GSM_LCHAN_SDCCH:
|
|
|
|
cm->chan_rt = RSL_CMOD_CRT_SDCCH;
|
|
|
|
break;
|
|
|
|
case GSM_LCHAN_TCH_F:
|
|
|
|
cm->chan_rt = RSL_CMOD_CRT_TCH_Bm;
|
|
|
|
break;
|
|
|
|
case GSM_LCHAN_TCH_H:
|
|
|
|
cm->chan_rt = RSL_CMOD_CRT_TCH_Lm;
|
|
|
|
break;
|
|
|
|
case GSM_LCHAN_NONE:
|
|
|
|
case GSM_LCHAN_UNKNOWN:
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (lchan->tch_mode) {
|
|
|
|
case GSM48_CMODE_SIGN:
|
|
|
|
cm->chan_rate = 0;
|
|
|
|
break;
|
|
|
|
case GSM48_CMODE_SPEECH_V1:
|
|
|
|
cm->chan_rate = RSL_CMOD_SP_GSM1;
|
|
|
|
break;
|
|
|
|
case GSM48_CMODE_SPEECH_EFR:
|
|
|
|
cm->chan_rate = RSL_CMOD_SP_GSM2;
|
|
|
|
break;
|
|
|
|
case GSM48_CMODE_SPEECH_AMR:
|
|
|
|
cm->chan_rate = RSL_CMOD_SP_GSM3;
|
|
|
|
break;
|
|
|
|
case GSM48_CMODE_DATA_14k5:
|
|
|
|
cm->chan_rate = RSL_CMOD_SP_NT_14k5;
|
|
|
|
break;
|
|
|
|
case GSM48_CMODE_DATA_12k0:
|
|
|
|
cm->chan_rate = RSL_CMOD_SP_NT_12k0;
|
|
|
|
break;
|
|
|
|
case GSM48_CMODE_DATA_6k0:
|
|
|
|
cm->chan_rate = RSL_CMOD_SP_NT_6k0;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-12-23 20:25:15 +00:00
|
|
|
/* Chapter 8.4.1 */
|
2009-02-28 13:19:15 +00:00
|
|
|
#if 0
|
2011-04-18 15:04:00 +00:00
|
|
|
int rsl_chan_activate(struct gsm_bts_trx *trx, uint8_t chan_nr,
|
|
|
|
uint8_t act_type,
|
2008-12-23 20:25:15 +00:00
|
|
|
struct rsl_ie_chan_mode *chan_mode,
|
|
|
|
struct rsl_ie_chan_ident *chan_ident,
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t bs_power, uint8_t ms_power,
|
|
|
|
uint8_t ta)
|
2008-12-23 20:25:15 +00:00
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
2008-12-25 23:28:35 +00:00
|
|
|
struct msgb *msg = rsl_msgb_alloc();
|
2008-12-23 20:25:15 +00:00
|
|
|
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_CHAN_ACTIV);
|
|
|
|
dh->chan_nr = chan_nr;
|
|
|
|
|
|
|
|
msgb_tv_put(msg, RSL_IE_ACT_TYPE, act_type);
|
|
|
|
/* For compatibility with Phase 1 */
|
|
|
|
msgb_tlv_put(msg, RSL_IE_CHAN_MODE, sizeof(*chan_mode),
|
2011-04-18 15:04:00 +00:00
|
|
|
(uint8_t *) chan_mode);
|
2008-12-23 20:25:15 +00:00
|
|
|
msgb_tlv_put(msg, RSL_IE_CHAN_IDENT, 4,
|
2011-04-18 15:04:00 +00:00
|
|
|
(uint8_t *) chan_ident);
|
2008-12-26 20:25:35 +00:00
|
|
|
#if 0
|
2008-12-23 20:25:15 +00:00
|
|
|
msgb_tlv_put(msg, RSL_IE_ENCR_INFO, 1,
|
2011-04-18 15:04:00 +00:00
|
|
|
(uint8_t *) &encr_info);
|
2008-12-26 20:25:35 +00:00
|
|
|
#endif
|
2009-02-15 16:56:18 +00:00
|
|
|
msgb_tv_put(msg, RSL_IE_BS_POWER, bs_power);
|
2008-12-23 20:25:15 +00:00
|
|
|
msgb_tv_put(msg, RSL_IE_MS_POWER, ms_power);
|
|
|
|
msgb_tv_put(msg, RSL_IE_TIMING_ADVANCE, ta);
|
|
|
|
|
2009-02-07 00:48:17 +00:00
|
|
|
msg->trx = trx;
|
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
return abis_rsl_sendmsg(msg);
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
2009-02-28 13:19:15 +00:00
|
|
|
#endif
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2011-04-18 15:04:00 +00:00
|
|
|
int rsl_chan_activate_lchan(struct gsm_lchan *lchan, uint8_t act_type,
|
|
|
|
uint8_t ta, uint8_t ho_ref)
|
2008-12-27 01:55:51 +00:00
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
2009-06-27 01:09:08 +00:00
|
|
|
struct msgb *msg;
|
2009-07-29 13:41:29 +00:00
|
|
|
int rc;
|
2010-06-29 15:53:45 +00:00
|
|
|
uint8_t *len;
|
2008-12-27 01:55:51 +00:00
|
|
|
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t chan_nr = lchan2chan_nr(lchan);
|
2008-12-27 01:55:51 +00:00
|
|
|
struct rsl_ie_chan_mode cm;
|
2010-06-20 19:38:19 +00:00
|
|
|
struct gsm48_chan_desc cd;
|
2008-12-27 01:55:51 +00:00
|
|
|
|
2009-07-29 13:41:29 +00:00
|
|
|
rc = channel_mode_from_lchan(&cm, lchan);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
2008-12-27 01:55:51 +00:00
|
|
|
|
2010-06-30 03:56:43 +00:00
|
|
|
memset(&cd, 0, sizeof(cd));
|
2010-06-20 19:38:19 +00:00
|
|
|
gsm48_lchan2chan_desc(&cd, lchan);
|
2008-12-27 01:55:51 +00:00
|
|
|
|
2009-06-27 01:09:08 +00:00
|
|
|
msg = rsl_msgb_alloc();
|
2008-12-27 01:55:51 +00:00
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_CHAN_ACTIV);
|
|
|
|
dh->chan_nr = chan_nr;
|
|
|
|
|
|
|
|
msgb_tv_put(msg, RSL_IE_ACT_TYPE, act_type);
|
|
|
|
msgb_tlv_put(msg, RSL_IE_CHAN_MODE, sizeof(cm),
|
2011-04-18 15:04:00 +00:00
|
|
|
(uint8_t *) &cm);
|
2010-06-30 03:56:43 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* The Channel Identification is needed for Phase1 phones
|
|
|
|
* and it contains the GSM48 Channel Description and the
|
|
|
|
* Mobile Allocation. The GSM 08.58 asks for the Mobile
|
|
|
|
* Allocation to have a length of zero. We are using the
|
|
|
|
* msgb_l3len to calculate the length of both messages.
|
|
|
|
*/
|
2010-06-20 19:38:19 +00:00
|
|
|
msgb_v_put(msg, RSL_IE_CHAN_IDENT);
|
2010-06-29 15:53:45 +00:00
|
|
|
len = msgb_put(msg, 1);
|
2010-06-30 03:56:43 +00:00
|
|
|
msgb_tlv_put(msg, GSM48_IE_CHANDESC_2, sizeof(cd), (const uint8_t *) &cd);
|
2010-06-30 04:06:20 +00:00
|
|
|
|
|
|
|
if (lchan->ts->hopping.enabled)
|
|
|
|
msgb_tlv_put(msg, GSM48_IE_MA_AFTER, lchan->ts->hopping.ma_len,
|
|
|
|
lchan->ts->hopping.ma_data);
|
|
|
|
else
|
|
|
|
msgb_tlv_put(msg, GSM48_IE_MA_AFTER, 0, NULL);
|
2010-06-30 03:56:43 +00:00
|
|
|
|
|
|
|
/* update the calculated size */
|
|
|
|
msg->l3h = len + 1;
|
|
|
|
*len = msgb_l3len(msg);
|
|
|
|
|
2009-08-30 06:37:11 +00:00
|
|
|
if (lchan->encr.alg_id > RSL_ENC_ALG_A5(0)) {
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t encr_info[MAX_A5_KEY_LEN+2];
|
2009-08-30 06:37:11 +00:00
|
|
|
rc = build_encr_info(encr_info, lchan);
|
|
|
|
if (rc > 0)
|
|
|
|
msgb_tlv_put(msg, RSL_IE_ENCR_INFO, rc, encr_info);
|
|
|
|
}
|
|
|
|
|
2009-12-16 23:31:10 +00:00
|
|
|
switch (act_type) {
|
|
|
|
case RSL_ACT_INTER_ASYNC:
|
|
|
|
case RSL_ACT_INTER_SYNC:
|
|
|
|
msgb_tv_put(msg, RSL_IE_HANDO_REF, ho_ref);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2009-02-15 16:56:18 +00:00
|
|
|
msgb_tv_put(msg, RSL_IE_BS_POWER, lchan->bs_power);
|
|
|
|
msgb_tv_put(msg, RSL_IE_MS_POWER, lchan->ms_power);
|
2008-12-27 01:55:51 +00:00
|
|
|
msgb_tv_put(msg, RSL_IE_TIMING_ADVANCE, ta);
|
|
|
|
|
2010-01-28 03:45:05 +00:00
|
|
|
if (lchan->tch_mode == GSM48_CMODE_SPEECH_AMR)
|
|
|
|
msgb_tlv_put(msg, RSL_IE_MR_CONFIG, sizeof(lchan->mr_conf),
|
2011-04-18 15:04:00 +00:00
|
|
|
(uint8_t *) &lchan->mr_conf);
|
2010-01-28 03:45:05 +00:00
|
|
|
|
2009-02-07 00:48:17 +00:00
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
2008-12-27 01:55:51 +00:00
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
2009-07-29 09:38:15 +00:00
|
|
|
/* Chapter 8.4.9: Modify channel mode on BTS side */
|
2009-02-18 03:29:53 +00:00
|
|
|
int rsl_chan_mode_modify_req(struct gsm_lchan *lchan)
|
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
2009-06-27 01:09:08 +00:00
|
|
|
struct msgb *msg;
|
2009-07-29 13:41:29 +00:00
|
|
|
int rc;
|
2009-02-18 03:29:53 +00:00
|
|
|
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t chan_nr = lchan2chan_nr(lchan);
|
2009-02-18 03:29:53 +00:00
|
|
|
struct rsl_ie_chan_mode cm;
|
|
|
|
|
2009-07-29 13:41:29 +00:00
|
|
|
rc = channel_mode_from_lchan(&cm, lchan);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
2009-02-18 03:29:53 +00:00
|
|
|
|
2009-06-27 01:09:08 +00:00
|
|
|
msg = rsl_msgb_alloc();
|
2009-02-18 03:29:53 +00:00
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_MODE_MODIFY_REQ);
|
|
|
|
dh->chan_nr = chan_nr;
|
|
|
|
|
|
|
|
msgb_tlv_put(msg, RSL_IE_CHAN_MODE, sizeof(cm),
|
2011-04-18 15:04:00 +00:00
|
|
|
(uint8_t *) &cm);
|
2009-08-30 06:37:11 +00:00
|
|
|
|
|
|
|
if (lchan->encr.alg_id > RSL_ENC_ALG_A5(0)) {
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t encr_info[MAX_A5_KEY_LEN+2];
|
2009-08-30 06:37:11 +00:00
|
|
|
rc = build_encr_info(encr_info, lchan);
|
|
|
|
if (rc > 0)
|
|
|
|
msgb_tlv_put(msg, RSL_IE_ENCR_INFO, rc, encr_info);
|
|
|
|
}
|
|
|
|
|
2009-11-18 21:57:02 +00:00
|
|
|
if (lchan->tch_mode == GSM48_CMODE_SPEECH_AMR) {
|
|
|
|
msgb_tlv_put(msg, RSL_IE_MR_CONFIG, sizeof(lchan->mr_conf),
|
2011-04-18 15:04:00 +00:00
|
|
|
(uint8_t *) &lchan->mr_conf);
|
2009-11-18 21:57:02 +00:00
|
|
|
}
|
|
|
|
|
2009-08-30 06:37:11 +00:00
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Chapter 8.4.6: Send the encryption command with given L3 info */
|
|
|
|
int rsl_encryption_cmd(struct msgb *msg)
|
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
|
|
|
struct gsm_lchan *lchan = msg->lchan;
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t chan_nr = lchan2chan_nr(lchan);
|
|
|
|
uint8_t encr_info[MAX_A5_KEY_LEN+2];
|
|
|
|
uint8_t l3_len = msg->len;
|
2009-08-30 06:37:11 +00:00
|
|
|
int rc;
|
|
|
|
|
|
|
|
/* First push the L3 IE tag and length */
|
|
|
|
msgb_tv16_push(msg, RSL_IE_L3_INFO, l3_len);
|
|
|
|
|
|
|
|
/* then the link identifier (SAPI0, main sign link) */
|
|
|
|
msgb_tv_push(msg, RSL_IE_LINK_IDENT, 0);
|
|
|
|
|
|
|
|
/* then encryption information */
|
|
|
|
rc = build_encr_info(encr_info, lchan);
|
|
|
|
if (rc <= 0)
|
|
|
|
return rc;
|
|
|
|
msgb_tlv_push(msg, RSL_IE_ENCR_INFO, rc, encr_info);
|
|
|
|
|
|
|
|
/* and finally the DCHAN header */
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_push(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_ENCR_CMD);
|
|
|
|
dh->chan_nr = chan_nr;
|
2009-02-18 03:29:53 +00:00
|
|
|
|
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
2009-08-10 09:43:22 +00:00
|
|
|
/* Chapter 8.4.5 / 4.6: Deactivate the SACCH after 04.08 RR CHAN RELEASE */
|
2009-07-19 16:36:49 +00:00
|
|
|
int rsl_deact_sacch(struct gsm_lchan *lchan)
|
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
|
|
|
struct msgb *msg = rsl_msgb_alloc();
|
|
|
|
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_DEACTIVATE_SACCH);
|
|
|
|
dh->chan_nr = lchan2chan_nr(lchan);
|
|
|
|
|
|
|
|
msg->lchan = lchan;
|
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
2009-12-27 17:16:36 +00:00
|
|
|
DEBUGP(DRSL, "%s DEACTivate SACCH CMD\n", gsm_lchan_name(lchan));
|
2009-07-19 16:36:49 +00:00
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
2010-05-31 13:38:24 +00:00
|
|
|
static void error_timeout_cb(void *data)
|
|
|
|
{
|
|
|
|
struct gsm_lchan *lchan = data;
|
|
|
|
if (lchan->state != LCHAN_S_REL_ERR) {
|
|
|
|
LOGP(DRSL, LOGL_ERROR, "%s error timeout but not in error state: %d\n",
|
|
|
|
gsm_lchan_name(lchan), lchan->state);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* go back to the none state */
|
|
|
|
LOGP(DRSL, LOGL_NOTICE, "%s is back in operation.\n", gsm_lchan_name(lchan));
|
2010-06-08 03:53:33 +00:00
|
|
|
rsl_lchan_set_state(lchan, LCHAN_S_NONE);
|
2010-05-31 13:38:24 +00:00
|
|
|
}
|
|
|
|
|
2011-03-04 12:41:31 +00:00
|
|
|
static int rsl_rx_rf_chan_rel_ack(struct gsm_lchan *lchan);
|
|
|
|
|
2009-08-10 09:43:22 +00:00
|
|
|
/* Chapter 8.4.14 / 4.7: Tell BTS to release the radio channel */
|
2010-05-31 13:38:24 +00:00
|
|
|
static int rsl_rf_chan_release(struct gsm_lchan *lchan, int error)
|
2008-12-23 20:25:15 +00:00
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
2010-05-31 13:38:24 +00:00
|
|
|
struct msgb *msg;
|
2011-03-04 12:41:31 +00:00
|
|
|
int rc;
|
2010-05-31 13:38:24 +00:00
|
|
|
|
|
|
|
if (lchan->state == LCHAN_S_REL_ERR) {
|
|
|
|
LOGP(DRSL, LOGL_NOTICE, "%s is in error state not sending release.\n",
|
|
|
|
gsm_lchan_name(lchan));
|
|
|
|
return -1;
|
|
|
|
}
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2010-05-31 13:38:24 +00:00
|
|
|
msg = rsl_msgb_alloc();
|
2008-12-23 20:25:15 +00:00
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_RF_CHAN_REL);
|
2008-12-25 23:28:35 +00:00
|
|
|
dh->chan_nr = lchan2chan_nr(lchan);
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
msg->lchan = lchan;
|
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
2010-05-31 13:38:24 +00:00
|
|
|
DEBUGP(DRSL, "%s RF Channel Release CMD due error %d\n", gsm_lchan_name(lchan), error);
|
|
|
|
|
|
|
|
if (error) {
|
|
|
|
/*
|
|
|
|
* the nanoBTS sends RLL release indications after the channel release. This can
|
|
|
|
* be a problem when we have reassigned the channel to someone else and then can
|
|
|
|
* not figure out who used this channel.
|
|
|
|
*/
|
2010-06-08 03:53:33 +00:00
|
|
|
rsl_lchan_set_state(lchan, LCHAN_S_REL_ERR);
|
2010-05-31 13:38:24 +00:00
|
|
|
lchan->error_timer.data = lchan;
|
|
|
|
lchan->error_timer.cb = error_timeout_cb;
|
2011-05-06 10:11:06 +00:00
|
|
|
osmo_timer_schedule(&lchan->error_timer,
|
2010-05-31 13:38:24 +00:00
|
|
|
msg->trx->bts->network->T3111 + 2, 0);
|
|
|
|
}
|
2008-12-27 19:46:06 +00:00
|
|
|
|
2011-03-04 12:41:31 +00:00
|
|
|
rc = abis_rsl_sendmsg(msg);
|
|
|
|
|
2009-08-10 09:43:22 +00:00
|
|
|
/* BTS will respond by RF CHAN REL ACK */
|
2011-01-14 22:18:59 +00:00
|
|
|
#ifdef HSL_SR_1_0
|
2011-03-04 12:41:31 +00:00
|
|
|
/* The HSL Femto seems to 'forget' sending a REL ACK for TS1...TS7 */
|
|
|
|
if (lchan->ts->trx->bts->type == GSM_BTS_TYPE_HSL_FEMTO && lchan->ts->nr != 0)
|
|
|
|
rc = rsl_rx_rf_chan_rel_ack(lchan);
|
2011-01-14 22:18:59 +00:00
|
|
|
#endif
|
2011-03-04 12:41:31 +00:00
|
|
|
|
|
|
|
return rc;
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
|
|
|
|
2011-01-14 13:16:16 +00:00
|
|
|
static int rsl_rx_rf_chan_rel_ack(struct gsm_lchan *lchan)
|
|
|
|
{
|
|
|
|
|
|
|
|
DEBUGP(DRSL, "%s RF CHANNEL RELEASE ACK\n", gsm_lchan_name(lchan));
|
|
|
|
|
|
|
|
if (lchan->state != LCHAN_S_REL_REQ && lchan->state != LCHAN_S_REL_ERR)
|
|
|
|
LOGP(DRSL, LOGL_NOTICE, "%s CHAN REL ACK but state %s\n",
|
|
|
|
gsm_lchan_name(lchan),
|
|
|
|
gsm_lchans_name(lchan->state));
|
2011-05-06 10:11:06 +00:00
|
|
|
osmo_timer_del(&lchan->T3111);
|
2011-01-14 13:16:16 +00:00
|
|
|
/* we have an error timer pending to release that */
|
|
|
|
if (lchan->state != LCHAN_S_REL_ERR)
|
|
|
|
rsl_lchan_set_state(lchan, LCHAN_S_NONE);
|
|
|
|
lchan_free(lchan);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-04-18 15:04:00 +00:00
|
|
|
int rsl_paging_cmd(struct gsm_bts *bts, uint8_t paging_group, uint8_t len,
|
|
|
|
uint8_t *ms_ident, uint8_t chan_needed)
|
2008-12-23 20:25:15 +00:00
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
2008-12-25 23:28:35 +00:00
|
|
|
struct msgb *msg = rsl_msgb_alloc();
|
2008-12-23 20:25:15 +00:00
|
|
|
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_PAGING_CMD);
|
|
|
|
dh->chan_nr = RSL_CHAN_PCH_AGCH;
|
|
|
|
|
|
|
|
msgb_tv_put(msg, RSL_IE_PAGING_GROUP, paging_group);
|
2008-12-28 02:26:27 +00:00
|
|
|
msgb_tlv_put(msg, RSL_IE_MS_IDENTITY, len-2, ms_ident+2);
|
2008-12-23 20:25:15 +00:00
|
|
|
msgb_tv_put(msg, RSL_IE_CHAN_NEEDED, chan_needed);
|
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
msg->trx = bts->c0;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
|
|
|
|
2011-04-18 15:04:00 +00:00
|
|
|
int imsi_str2bcd(uint8_t *bcd_out, const char *str_in)
|
2008-12-23 20:25:15 +00:00
|
|
|
{
|
|
|
|
int i, len = strlen(str_in);
|
|
|
|
|
|
|
|
for (i = 0; i < len; i++) {
|
|
|
|
int num = str_in[i] - 0x30;
|
|
|
|
if (num < 0 || num > 9)
|
|
|
|
return -1;
|
|
|
|
if (i % 2 == 0)
|
|
|
|
bcd_out[i/2] = num;
|
|
|
|
else
|
|
|
|
bcd_out[i/2] |= (num << 4);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-12-26 20:25:35 +00:00
|
|
|
/* Chapter 8.5.6 */
|
2011-04-18 15:04:00 +00:00
|
|
|
int rsl_imm_assign_cmd(struct gsm_bts *bts, uint8_t len, uint8_t *val)
|
2008-12-23 20:25:15 +00:00
|
|
|
{
|
2008-12-25 23:28:35 +00:00
|
|
|
struct msgb *msg = rsl_msgb_alloc();
|
2008-12-23 20:25:15 +00:00
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t buf[MACBLOCK_SIZE];
|
2008-12-23 20:25:15 +00:00
|
|
|
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_IMMEDIATE_ASSIGN_CMD);
|
|
|
|
dh->chan_nr = RSL_CHAN_PCH_AGCH;
|
|
|
|
|
2009-02-15 14:36:38 +00:00
|
|
|
switch (bts->type) {
|
|
|
|
case GSM_BTS_TYPE_BS11:
|
|
|
|
msgb_tlv_put(msg, RSL_IE_IMM_ASS_INFO, len, val);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
/* If phase 2, construct a FULL_IMM_ASS_INFO */
|
|
|
|
pad_macblock(buf, val, len);
|
|
|
|
msgb_tlv_put(msg, RSL_IE_FULL_IMM_ASS_INFO, MACBLOCK_SIZE, buf);
|
|
|
|
break;
|
|
|
|
}
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
msg->trx = bts->c0;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
|
|
|
|
2009-08-10 07:51:40 +00:00
|
|
|
/* Send Siemens specific MS RF Power Capability Indication */
|
2009-08-10 08:07:33 +00:00
|
|
|
int rsl_siemens_mrpci(struct gsm_lchan *lchan, struct rsl_mrpci *mrpci)
|
2009-08-10 07:51:40 +00:00
|
|
|
{
|
|
|
|
struct msgb *msg = rsl_msgb_alloc();
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
|
|
|
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
|
|
|
init_dchan_hdr(dh, RSL_MT_SIEMENS_MRPCI);
|
2009-08-10 09:26:14 +00:00
|
|
|
dh->c.msg_discr = ABIS_RSL_MDISC_DED_CHAN;
|
2009-08-10 07:51:40 +00:00
|
|
|
dh->chan_nr = lchan2chan_nr(lchan);
|
2011-04-18 15:04:00 +00:00
|
|
|
msgb_tv_put(msg, RSL_IE_SIEMENS_MRPCI, *(uint8_t *)mrpci);
|
2009-08-10 07:51:40 +00:00
|
|
|
|
2009-12-24 11:20:20 +00:00
|
|
|
DEBUGP(DRSL, "%s TX Siemens MRPCI 0x%02x\n",
|
2011-04-18 15:04:00 +00:00
|
|
|
gsm_lchan_name(lchan), *(uint8_t *)mrpci);
|
2009-08-10 09:26:14 +00:00
|
|
|
|
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
2009-08-10 07:51:40 +00:00
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
/* Send "DATA REQUEST" message with given L3 Info payload */
|
2008-12-23 20:25:15 +00:00
|
|
|
/* Chapter 8.3.1 */
|
2011-04-18 15:04:00 +00:00
|
|
|
int rsl_data_request(struct msgb *msg, uint8_t link_id)
|
2008-12-23 20:25:15 +00:00
|
|
|
{
|
2008-12-25 23:28:35 +00:00
|
|
|
if (msg->lchan == NULL) {
|
2009-12-17 22:10:46 +00:00
|
|
|
LOGP(DRSL, LOGL_ERROR, "cannot send DATA REQUEST to unknown lchan\n");
|
2008-12-25 23:28:35 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2010-03-04 09:33:10 +00:00
|
|
|
rsl_rll_push_l3(msg, RSL_MT_DATA_REQ, lchan2chan_nr(msg->lchan),
|
|
|
|
link_id, 1);
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
msg->trx = msg->lchan->ts->trx;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
|
|
|
|
2009-08-09 11:47:35 +00:00
|
|
|
/* Send "ESTABLISH REQUEST" message with given L3 Info payload */
|
|
|
|
/* Chapter 8.3.1 */
|
2011-04-18 15:04:00 +00:00
|
|
|
int rsl_establish_request(struct gsm_lchan *lchan, uint8_t link_id)
|
2009-08-09 11:47:35 +00:00
|
|
|
{
|
2010-03-04 09:33:10 +00:00
|
|
|
struct msgb *msg;
|
2009-08-09 11:47:35 +00:00
|
|
|
|
2010-03-04 09:33:10 +00:00
|
|
|
msg = rsl_rll_simple(RSL_MT_EST_REQ, lchan2chan_nr(lchan),
|
|
|
|
link_id, 0);
|
2009-08-09 11:47:35 +00:00
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
2009-08-08 11:15:07 +00:00
|
|
|
/* Chapter 8.3.7 Request the release of multiframe mode of RLL connection.
|
|
|
|
This is what higher layers should call. The BTS then responds with
|
|
|
|
RELEASE CONFIRM, which we in turn use to trigger RSL CHANNEL RELEASE,
|
|
|
|
which in turn is acknowledged by RSL CHANNEL RELEASE ACK, which calls
|
|
|
|
lchan_free() */
|
2011-04-18 15:04:00 +00:00
|
|
|
int rsl_release_request(struct gsm_lchan *lchan, uint8_t link_id, uint8_t reason)
|
2009-08-08 11:15:07 +00:00
|
|
|
{
|
|
|
|
|
2010-03-04 09:33:10 +00:00
|
|
|
struct msgb *msg;
|
|
|
|
|
|
|
|
msg = rsl_rll_simple(RSL_MT_REL_REQ, lchan2chan_nr(lchan),
|
|
|
|
link_id, 0);
|
2010-06-08 03:57:45 +00:00
|
|
|
/* 0 is normal release, 1 is local end */
|
|
|
|
msgb_tv_put(msg, RSL_IE_RELEASE_MODE, reason);
|
2009-08-08 11:15:07 +00:00
|
|
|
|
2009-12-29 09:44:17 +00:00
|
|
|
/* FIXME: start some timer in case we don't receive a REL ACK ? */
|
|
|
|
|
2009-08-08 11:15:07 +00:00
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
2010-04-09 22:12:31 +00:00
|
|
|
int rsl_lchan_set_state(struct gsm_lchan *lchan, int state)
|
|
|
|
{
|
|
|
|
lchan->state = state;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-12-26 20:25:35 +00:00
|
|
|
/* Chapter 8.4.2: Channel Activate Acknowledge */
|
|
|
|
static int rsl_rx_chan_act_ack(struct msgb *msg)
|
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *rslh = msgb_l2(msg);
|
|
|
|
|
|
|
|
/* BTS has confirmed channel activation, we now need
|
|
|
|
* to assign the activated channel to the MS */
|
2008-12-27 01:55:51 +00:00
|
|
|
if (rslh->ie_chan != RSL_IE_CHAN_NR)
|
|
|
|
return -EINVAL;
|
2009-11-29 21:45:52 +00:00
|
|
|
|
2009-12-29 09:44:17 +00:00
|
|
|
if (msg->lchan->state != LCHAN_S_ACT_REQ)
|
2009-12-29 09:52:38 +00:00
|
|
|
LOGP(DRSL, LOGL_NOTICE, "%s CHAN ACT ACK, but state %s\n",
|
|
|
|
gsm_lchan_name(msg->lchan),
|
|
|
|
gsm_lchans_name(msg->lchan->state));
|
2010-04-09 22:12:31 +00:00
|
|
|
rsl_lchan_set_state(msg->lchan, LCHAN_S_ACTIVE);
|
2009-12-21 12:27:11 +00:00
|
|
|
|
2010-06-22 04:11:59 +00:00
|
|
|
if (msg->lchan->rqd_ref) {
|
|
|
|
rsl_send_imm_assignment(msg->lchan);
|
|
|
|
talloc_free(msg->lchan->rqd_ref);
|
|
|
|
msg->lchan->rqd_ref = NULL;
|
|
|
|
msg->lchan->rqd_ta = 0;
|
|
|
|
}
|
|
|
|
|
2010-12-27 12:28:20 +00:00
|
|
|
send_lchan_signal(S_LCHAN_ACTIVATE_ACK, msg->lchan, NULL);
|
2009-11-29 21:45:52 +00:00
|
|
|
|
2008-12-27 01:55:51 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Chapter 8.4.3: Channel Activate NACK */
|
|
|
|
static int rsl_rx_chan_act_nack(struct msgb *msg)
|
|
|
|
{
|
2009-05-01 17:21:37 +00:00
|
|
|
struct abis_rsl_dchan_hdr *dh = msgb_l2(msg);
|
|
|
|
struct tlv_parsed tp;
|
2008-12-26 20:25:35 +00:00
|
|
|
|
2009-12-27 10:48:11 +00:00
|
|
|
LOGP(DRSL, LOGL_ERROR, "%s CHANNEL ACTIVATE NACK",
|
2009-12-27 17:16:36 +00:00
|
|
|
gsm_lchan_name(msg->lchan));
|
2009-12-27 10:48:11 +00:00
|
|
|
|
2009-05-01 17:21:37 +00:00
|
|
|
/* BTS has rejected channel activation ?!? */
|
|
|
|
if (dh->ie_chan != RSL_IE_CHAN_NR)
|
2008-12-27 01:55:51 +00:00
|
|
|
return -EINVAL;
|
2009-05-01 17:21:37 +00:00
|
|
|
|
|
|
|
rsl_tlv_parse(&tp, dh->data, msgb_l2len(msg)-sizeof(*dh));
|
2009-12-27 17:12:29 +00:00
|
|
|
if (TLVP_PRESENT(&tp, RSL_IE_CAUSE)) {
|
2011-04-18 15:04:00 +00:00
|
|
|
const uint8_t *cause = TLVP_VAL(&tp, RSL_IE_CAUSE);
|
2009-12-27 17:12:29 +00:00
|
|
|
print_rsl_cause(LOGL_ERROR, cause,
|
2009-07-28 15:58:09 +00:00
|
|
|
TLVP_LEN(&tp, RSL_IE_CAUSE));
|
2009-12-27 17:12:29 +00:00
|
|
|
if (*cause != RSL_ERR_RCH_ALR_ACTV_ALLOC)
|
2010-04-09 22:12:31 +00:00
|
|
|
rsl_lchan_set_state(msg->lchan, LCHAN_S_NONE);
|
2009-12-27 17:12:29 +00:00
|
|
|
} else
|
2010-04-09 22:12:31 +00:00
|
|
|
rsl_lchan_set_state(msg->lchan, LCHAN_S_NONE);
|
2010-03-29 06:47:44 +00:00
|
|
|
|
2009-12-27 10:48:11 +00:00
|
|
|
LOGPC(DRSL, LOGL_ERROR, "\n");
|
|
|
|
|
2010-12-27 12:28:20 +00:00
|
|
|
send_lchan_signal(S_LCHAN_ACTIVATE_NACK, msg->lchan, NULL);
|
2009-11-29 21:45:52 +00:00
|
|
|
|
2009-08-09 17:50:08 +00:00
|
|
|
lchan_free(msg->lchan);
|
2008-12-27 01:55:51 +00:00
|
|
|
return 0;
|
2008-12-26 20:25:35 +00:00
|
|
|
}
|
|
|
|
|
2009-02-23 00:02:59 +00:00
|
|
|
/* Chapter 8.4.4: Connection Failure Indication */
|
|
|
|
static int rsl_rx_conn_fail(struct msgb *msg)
|
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh = msgb_l2(msg);
|
|
|
|
struct tlv_parsed tp;
|
|
|
|
|
2009-12-17 22:10:46 +00:00
|
|
|
/* FIXME: print which channel */
|
2009-12-26 21:33:09 +00:00
|
|
|
LOGP(DRSL, LOGL_NOTICE, "%s CONNECTION FAIL: RELEASING ",
|
2009-12-27 17:16:36 +00:00
|
|
|
gsm_lchan_name(msg->lchan));
|
2009-02-23 00:02:59 +00:00
|
|
|
|
|
|
|
rsl_tlv_parse(&tp, dh->data, msgb_l2len(msg)-sizeof(*dh));
|
|
|
|
|
2009-07-28 15:58:09 +00:00
|
|
|
if (TLVP_PRESENT(&tp, RSL_IE_CAUSE))
|
2009-12-24 11:20:20 +00:00
|
|
|
print_rsl_cause(LOGL_NOTICE, TLVP_VAL(&tp, RSL_IE_CAUSE),
|
2009-07-28 15:58:09 +00:00
|
|
|
TLVP_LEN(&tp, RSL_IE_CAUSE));
|
|
|
|
|
2009-12-26 21:33:09 +00:00
|
|
|
LOGPC(DRSL, LOGL_NOTICE, "\n");
|
2009-02-23 00:02:59 +00:00
|
|
|
/* FIXME: only free it after channel release ACK */
|
2010-04-17 04:48:29 +00:00
|
|
|
counter_inc(msg->lchan->ts->trx->bts->network->stats.chan.rf_fail);
|
2010-05-31 13:38:24 +00:00
|
|
|
return rsl_rf_chan_release(msg->lchan, 1);
|
2009-02-23 00:02:59 +00:00
|
|
|
}
|
|
|
|
|
2009-11-29 18:07:28 +00:00
|
|
|
static void print_meas_rep_uni(struct gsm_meas_rep_unidir *mru,
|
|
|
|
const char *prefix)
|
|
|
|
{
|
2009-12-16 15:52:07 +00:00
|
|
|
DEBUGPC(DMEAS, "RXL-FULL-%s=%3ddBm RXL-SUB-%s=%3ddBm ",
|
|
|
|
prefix, rxlev2dbm(mru->full.rx_lev),
|
|
|
|
prefix, rxlev2dbm(mru->sub.rx_lev));
|
2009-11-29 18:07:28 +00:00
|
|
|
DEBUGPC(DMEAS, "RXQ-FULL-%s=%d RXQ-SUB-%s=%d ",
|
|
|
|
prefix, mru->full.rx_qual, prefix, mru->sub.rx_qual);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void print_meas_rep(struct gsm_meas_rep *mr)
|
|
|
|
{
|
2009-12-16 15:52:07 +00:00
|
|
|
int i;
|
|
|
|
|
2009-11-29 18:07:28 +00:00
|
|
|
DEBUGP(DMEAS, "MEASUREMENT RESULT NR=%d ", mr->nr);
|
|
|
|
|
|
|
|
if (mr->flags & MEAS_REP_F_DL_DTX)
|
|
|
|
DEBUGPC(DMEAS, "DTXd ");
|
|
|
|
|
|
|
|
print_meas_rep_uni(&mr->ul, "ul");
|
|
|
|
DEBUGPC(DMEAS, "BS_POWER=%d ", mr->bs_power);
|
|
|
|
if (mr->flags & MEAS_REP_F_MS_TO)
|
|
|
|
DEBUGPC(DMEAS, "MS_TO=%d ", mr->ms_timing_offset);
|
|
|
|
|
|
|
|
if (mr->flags & MEAS_REP_F_MS_L1) {
|
2009-12-16 15:52:07 +00:00
|
|
|
DEBUGPC(DMEAS, "L1_MS_PWR=%3ddBm ", mr->ms_l1.pwr);
|
2009-11-29 18:07:28 +00:00
|
|
|
DEBUGPC(DMEAS, "L1_FPC=%u ",
|
|
|
|
mr->flags & MEAS_REP_F_FPC ? 1 : 0);
|
|
|
|
DEBUGPC(DMEAS, "L1_TA=%u ", mr->ms_l1.ta);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (mr->flags & MEAS_REP_F_UL_DTX)
|
|
|
|
DEBUGPC(DMEAS, "DTXu ");
|
|
|
|
if (mr->flags & MEAS_REP_F_BA1)
|
|
|
|
DEBUGPC(DMEAS, "BA1 ");
|
|
|
|
if (!(mr->flags & MEAS_REP_F_DL_VALID))
|
|
|
|
DEBUGPC(DMEAS, "NOT VALID ");
|
|
|
|
else
|
|
|
|
print_meas_rep_uni(&mr->dl, "dl");
|
|
|
|
|
|
|
|
DEBUGPC(DMEAS, "NUM_NEIGH=%u\n", mr->num_cell);
|
2009-12-19 17:33:05 +00:00
|
|
|
if (mr->num_cell == 7)
|
|
|
|
return;
|
2009-12-16 15:52:07 +00:00
|
|
|
for (i = 0; i < mr->num_cell; i++) {
|
|
|
|
struct gsm_meas_rep_cell *mrc = &mr->cell[i];
|
2009-12-25 22:02:22 +00:00
|
|
|
DEBUGP(DMEAS, "IDX=%u ARFCN=%u BSIC=%u => %d dBm\n",
|
|
|
|
mrc->neigh_idx, mrc->arfcn, mrc->bsic, rxlev2dbm(mrc->rxlev));
|
2009-12-16 15:52:07 +00:00
|
|
|
}
|
2009-11-29 18:07:28 +00:00
|
|
|
}
|
|
|
|
|
2009-05-01 18:43:47 +00:00
|
|
|
static int rsl_rx_meas_res(struct msgb *msg)
|
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh = msgb_l2(msg);
|
|
|
|
struct tlv_parsed tp;
|
2009-12-15 20:36:05 +00:00
|
|
|
struct gsm_meas_rep *mr = lchan_next_meas_rep(msg->lchan);
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t len;
|
|
|
|
const uint8_t *val;
|
2009-11-29 18:07:28 +00:00
|
|
|
int rc;
|
|
|
|
|
2009-12-21 12:27:11 +00:00
|
|
|
/* check if this channel is actually active */
|
|
|
|
/* FIXME: maybe this check should be way more generic/centralized */
|
2009-12-29 09:44:17 +00:00
|
|
|
if (msg->lchan->state != LCHAN_S_ACTIVE) {
|
2010-07-29 06:50:57 +00:00
|
|
|
LOGP(DRSL, LOGL_DEBUG, "%s: MEAS RES for inactive channel\n",
|
2009-12-29 09:44:17 +00:00
|
|
|
gsm_lchan_name(msg->lchan));
|
2009-12-21 12:27:11 +00:00
|
|
|
return 0;
|
2009-12-29 09:44:17 +00:00
|
|
|
}
|
2009-12-21 12:27:11 +00:00
|
|
|
|
2009-12-15 20:36:05 +00:00
|
|
|
memset(mr, 0, sizeof(*mr));
|
2009-12-16 22:29:34 +00:00
|
|
|
mr->lchan = msg->lchan;
|
2009-11-30 18:16:47 +00:00
|
|
|
|
2009-05-01 18:43:47 +00:00
|
|
|
rsl_tlv_parse(&tp, dh->data, msgb_l2len(msg)-sizeof(*dh));
|
|
|
|
|
2009-11-29 18:07:28 +00:00
|
|
|
if (!TLVP_PRESENT(&tp, RSL_IE_MEAS_RES_NR) ||
|
|
|
|
!TLVP_PRESENT(&tp, RSL_IE_UPLINK_MEAS) ||
|
|
|
|
!TLVP_PRESENT(&tp, RSL_IE_BS_POWER))
|
|
|
|
return -EIO;
|
|
|
|
|
|
|
|
/* Mandatory Parts */
|
2009-12-15 20:36:05 +00:00
|
|
|
mr->nr = *TLVP_VAL(&tp, RSL_IE_MEAS_RES_NR);
|
2009-11-29 18:07:28 +00:00
|
|
|
|
|
|
|
len = TLVP_LEN(&tp, RSL_IE_UPLINK_MEAS);
|
|
|
|
val = TLVP_VAL(&tp, RSL_IE_UPLINK_MEAS);
|
|
|
|
if (len >= 3) {
|
|
|
|
if (val[0] & 0x40)
|
2009-12-15 20:36:05 +00:00
|
|
|
mr->flags |= MEAS_REP_F_DL_DTX;
|
|
|
|
mr->ul.full.rx_lev = val[0] & 0x3f;
|
|
|
|
mr->ul.sub.rx_lev = val[1] & 0x3f;
|
|
|
|
mr->ul.full.rx_qual = val[2]>>3 & 0x7;
|
|
|
|
mr->ul.sub.rx_qual = val[2] & 0x7;
|
2009-05-01 18:43:47 +00:00
|
|
|
}
|
2009-11-29 18:07:28 +00:00
|
|
|
|
2009-12-15 20:36:05 +00:00
|
|
|
mr->bs_power = *TLVP_VAL(&tp, RSL_IE_BS_POWER);
|
2009-11-29 18:07:28 +00:00
|
|
|
|
|
|
|
/* Optional Parts */
|
2009-05-01 18:43:47 +00:00
|
|
|
if (TLVP_PRESENT(&tp, RSL_IE_MS_TIMING_OFFSET))
|
2009-12-15 20:36:05 +00:00
|
|
|
mr->ms_timing_offset =
|
2009-11-29 18:07:28 +00:00
|
|
|
*TLVP_VAL(&tp, RSL_IE_MS_TIMING_OFFSET);
|
|
|
|
|
2009-06-20 16:44:35 +00:00
|
|
|
if (TLVP_PRESENT(&tp, RSL_IE_L1_INFO)) {
|
2009-11-29 18:07:28 +00:00
|
|
|
val = TLVP_VAL(&tp, RSL_IE_L1_INFO);
|
2009-12-15 20:36:05 +00:00
|
|
|
mr->flags |= MEAS_REP_F_MS_L1;
|
|
|
|
mr->ms_l1.pwr = ms_pwr_dbm(msg->trx->bts->band, val[0] >> 3);
|
2009-11-29 18:07:28 +00:00
|
|
|
if (val[0] & 0x04)
|
2009-12-15 20:36:05 +00:00
|
|
|
mr->flags |= MEAS_REP_F_FPC;
|
|
|
|
mr->ms_l1.ta = val[1];
|
2009-06-20 16:44:35 +00:00
|
|
|
}
|
2009-06-09 20:24:21 +00:00
|
|
|
if (TLVP_PRESENT(&tp, RSL_IE_L3_INFO)) {
|
2011-04-18 15:04:00 +00:00
|
|
|
msg->l3h = (uint8_t *) TLVP_VAL(&tp, RSL_IE_L3_INFO);
|
2009-12-15 20:36:05 +00:00
|
|
|
rc = gsm48_parse_meas_rep(mr, msg);
|
2009-11-29 18:07:28 +00:00
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2009-12-15 20:36:05 +00:00
|
|
|
print_meas_rep(mr);
|
2009-11-30 18:16:47 +00:00
|
|
|
|
2010-12-27 12:28:20 +00:00
|
|
|
send_lchan_signal(S_LCHAN_MEAS_REP, msg->lchan, mr);
|
2009-06-05 20:07:43 +00:00
|
|
|
|
2009-05-23 06:11:13 +00:00
|
|
|
return 0;
|
2009-05-01 18:43:47 +00:00
|
|
|
}
|
|
|
|
|
2009-11-29 21:45:52 +00:00
|
|
|
/* Chapter 8.4.7 */
|
|
|
|
static int rsl_rx_hando_det(struct msgb *msg)
|
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh = msgb_l2(msg);
|
|
|
|
struct tlv_parsed tp;
|
|
|
|
|
2009-12-27 17:16:36 +00:00
|
|
|
DEBUGP(DRSL, "%s HANDOVER DETECT ", gsm_lchan_name(msg->lchan));
|
2009-11-29 21:45:52 +00:00
|
|
|
|
|
|
|
rsl_tlv_parse(&tp, dh->data, msgb_l2len(msg)-sizeof(*dh));
|
|
|
|
|
|
|
|
if (TLVP_PRESENT(&tp, RSL_IE_ACCESS_DELAY))
|
|
|
|
DEBUGPC(DRSL, "access delay = %u\n",
|
|
|
|
*TLVP_VAL(&tp, RSL_IE_ACCESS_DELAY));
|
|
|
|
else
|
|
|
|
DEBUGPC(DRSL, "\n");
|
|
|
|
|
2010-12-27 12:28:20 +00:00
|
|
|
send_lchan_signal(S_LCHAN_HANDOVER_DETECT, msg->lchan, NULL);
|
2009-11-29 21:45:52 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-12-23 20:25:15 +00:00
|
|
|
static int abis_rsl_rx_dchan(struct msgb *msg)
|
|
|
|
{
|
2008-12-25 23:28:35 +00:00
|
|
|
struct abis_rsl_dchan_hdr *rslh = msgb_l2(msg);
|
|
|
|
int rc = 0;
|
2009-02-19 17:07:39 +00:00
|
|
|
char *ts_name;
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
msg->lchan = lchan_lookup(msg->trx, rslh->chan_nr);
|
2009-12-27 17:16:36 +00:00
|
|
|
ts_name = gsm_lchan_name(msg->lchan);
|
2009-02-19 17:07:39 +00:00
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
switch (rslh->c.msg_type) {
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_CHAN_ACTIV_ACK:
|
2009-12-24 11:20:20 +00:00
|
|
|
DEBUGP(DRSL, "%s CHANNEL ACTIVATE ACK\n", ts_name);
|
2008-12-26 20:25:35 +00:00
|
|
|
rc = rsl_rx_chan_act_ack(msg);
|
2008-12-25 23:28:35 +00:00
|
|
|
break;
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_CHAN_ACTIV_NACK:
|
2008-12-27 01:55:51 +00:00
|
|
|
rc = rsl_rx_chan_act_nack(msg);
|
2008-12-25 23:28:35 +00:00
|
|
|
break;
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_CONN_FAIL:
|
2009-02-23 00:02:59 +00:00
|
|
|
rc = rsl_rx_conn_fail(msg);
|
2008-12-25 23:28:35 +00:00
|
|
|
break;
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_MEAS_RES:
|
2009-05-01 18:43:47 +00:00
|
|
|
rc = rsl_rx_meas_res(msg);
|
2008-12-27 19:46:06 +00:00
|
|
|
break;
|
2009-11-29 21:45:52 +00:00
|
|
|
case RSL_MT_HANDO_DET:
|
|
|
|
rc = rsl_rx_hando_det(msg);
|
|
|
|
break;
|
2008-12-27 19:46:06 +00:00
|
|
|
case RSL_MT_RF_CHAN_REL_ACK:
|
2011-01-14 13:16:16 +00:00
|
|
|
rc = rsl_rx_rf_chan_rel_ack(msg->lchan);
|
2008-12-25 23:28:35 +00:00
|
|
|
break;
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_MODE_MODIFY_ACK:
|
2009-12-24 11:20:20 +00:00
|
|
|
DEBUGP(DRSL, "%s CHANNEL MODE MODIFY ACK\n", ts_name);
|
2009-02-18 03:29:53 +00:00
|
|
|
break;
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_MODE_MODIFY_NACK:
|
2009-12-24 11:20:20 +00:00
|
|
|
LOGP(DRSL, LOGL_ERROR, "%s CHANNEL MODE MODIFY NACK\n", ts_name);
|
2009-02-18 03:29:53 +00:00
|
|
|
break;
|
2009-10-24 08:29:22 +00:00
|
|
|
case RSL_MT_IPAC_PDCH_ACT_ACK:
|
2009-12-24 11:20:20 +00:00
|
|
|
DEBUGPC(DRSL, "%s IPAC PDCH ACT ACK\n", ts_name);
|
2010-03-28 06:42:09 +00:00
|
|
|
msg->lchan->ts->flags |= TS_F_PDCH_MODE;
|
2009-10-24 08:29:22 +00:00
|
|
|
break;
|
|
|
|
case RSL_MT_IPAC_PDCH_ACT_NACK:
|
2009-12-24 11:20:20 +00:00
|
|
|
LOGP(DRSL, LOGL_ERROR, "%s IPAC PDCH ACT NACK\n", ts_name);
|
2009-10-24 08:29:22 +00:00
|
|
|
break;
|
|
|
|
case RSL_MT_IPAC_PDCH_DEACT_ACK:
|
2009-12-24 11:20:20 +00:00
|
|
|
DEBUGP(DRSL, "%s IPAC PDCH DEACT ACK\n", ts_name);
|
2010-03-28 06:42:09 +00:00
|
|
|
msg->lchan->ts->flags &= ~TS_F_PDCH_MODE;
|
2009-10-24 08:29:22 +00:00
|
|
|
break;
|
|
|
|
case RSL_MT_IPAC_PDCH_DEACT_NACK:
|
2009-12-24 11:20:20 +00:00
|
|
|
LOGP(DRSL, LOGL_ERROR, "%s IPAC PDCH DEACT NACK\n", ts_name);
|
2009-10-24 08:29:22 +00:00
|
|
|
break;
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_PHY_CONTEXT_CONF:
|
|
|
|
case RSL_MT_PREPROC_MEAS_RES:
|
|
|
|
case RSL_MT_TALKER_DET:
|
|
|
|
case RSL_MT_LISTENER_DET:
|
|
|
|
case RSL_MT_REMOTE_CODEC_CONF_REP:
|
|
|
|
case RSL_MT_MR_CODEC_MOD_ACK:
|
|
|
|
case RSL_MT_MR_CODEC_MOD_NACK:
|
|
|
|
case RSL_MT_MR_CODEC_MOD_PER:
|
2009-12-24 11:20:20 +00:00
|
|
|
LOGP(DRSL, LOGL_NOTICE, "%s Unimplemented Abis RSL DChan "
|
|
|
|
"msg 0x%02x\n", ts_name, rslh->c.msg_type);
|
2008-12-23 20:25:15 +00:00
|
|
|
break;
|
|
|
|
default:
|
2009-12-24 11:20:20 +00:00
|
|
|
LOGP(DRSL, LOGL_NOTICE, "%s unknown Abis RSL DChan msg 0x%02x\n",
|
|
|
|
ts_name, rslh->c.msg_type);
|
2008-12-23 20:25:15 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
2009-02-19 17:07:39 +00:00
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
return rc;
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
|
|
|
|
2008-12-26 20:25:35 +00:00
|
|
|
static int rsl_rx_error_rep(struct msgb *msg)
|
|
|
|
{
|
|
|
|
struct abis_rsl_common_hdr *rslh = msgb_l2(msg);
|
2009-07-28 15:58:09 +00:00
|
|
|
struct tlv_parsed tp;
|
2008-12-26 20:25:35 +00:00
|
|
|
|
2009-12-28 22:14:22 +00:00
|
|
|
LOGP(DRSL, LOGL_ERROR, "%s ERROR REPORT ", gsm_trx_name(msg->trx));
|
2009-07-28 15:58:09 +00:00
|
|
|
|
|
|
|
rsl_tlv_parse(&tp, rslh->data, msgb_l2len(msg)-sizeof(*rslh));
|
|
|
|
|
|
|
|
if (TLVP_PRESENT(&tp, RSL_IE_CAUSE))
|
2009-12-24 11:20:20 +00:00
|
|
|
print_rsl_cause(LOGL_ERROR, TLVP_VAL(&tp, RSL_IE_CAUSE),
|
2009-07-28 15:58:09 +00:00
|
|
|
TLVP_LEN(&tp, RSL_IE_CAUSE));
|
|
|
|
|
2009-12-17 22:10:46 +00:00
|
|
|
LOGPC(DRSL, LOGL_ERROR, "\n");
|
2008-12-26 20:25:35 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-12-23 20:25:15 +00:00
|
|
|
static int abis_rsl_rx_trx(struct msgb *msg)
|
|
|
|
{
|
2008-12-26 20:25:35 +00:00
|
|
|
struct abis_rsl_common_hdr *rslh = msgb_l2(msg);
|
2008-12-25 23:28:35 +00:00
|
|
|
int rc = 0;
|
2008-12-23 20:25:15 +00:00
|
|
|
|
|
|
|
switch (rslh->msg_type) {
|
2008-12-26 20:25:35 +00:00
|
|
|
case RSL_MT_ERROR_REPORT:
|
|
|
|
rc = rsl_rx_error_rep(msg);
|
|
|
|
break;
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_RF_RES_IND:
|
|
|
|
/* interference on idle channels of TRX */
|
2009-12-28 22:14:22 +00:00
|
|
|
//DEBUGP(DRSL, "%s RF Resource Indication\n", gsm_trx_name(msg->trx));
|
2009-02-03 12:57:37 +00:00
|
|
|
break;
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_OVERLOAD:
|
2010-03-29 06:47:44 +00:00
|
|
|
/* indicate CCCH / ACCH / processor overload */
|
2009-12-28 22:14:22 +00:00
|
|
|
LOGP(DRSL, LOGL_ERROR, "%s CCCH/ACCH/CPU Overload\n",
|
|
|
|
gsm_trx_name(msg->trx));
|
2008-12-23 20:25:15 +00:00
|
|
|
break;
|
|
|
|
default:
|
2009-12-28 22:14:22 +00:00
|
|
|
LOGP(DRSL, LOGL_NOTICE, "%s Unknown Abis RSL TRX message "
|
|
|
|
"type 0x%02x\n", gsm_trx_name(msg->trx), rslh->msg_type);
|
2008-12-23 20:25:15 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
2008-12-25 23:28:35 +00:00
|
|
|
return rc;
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
|
|
|
|
2009-08-09 22:26:10 +00:00
|
|
|
/* If T3101 expires, we never received a response to IMMEDIATE ASSIGN */
|
|
|
|
static void t3101_expired(void *data)
|
|
|
|
{
|
|
|
|
struct gsm_lchan *lchan = data;
|
|
|
|
|
2010-05-31 13:38:24 +00:00
|
|
|
rsl_rf_chan_release(lchan, 1);
|
2009-08-09 22:26:10 +00:00
|
|
|
}
|
|
|
|
|
2010-05-31 13:33:15 +00:00
|
|
|
/* If T3111 expires, we will send the RF Channel Request */
|
|
|
|
static void t3111_expired(void *data)
|
|
|
|
{
|
|
|
|
struct gsm_lchan *lchan = data;
|
|
|
|
|
2010-05-31 13:38:24 +00:00
|
|
|
rsl_rf_chan_release(lchan, 0);
|
2010-05-31 13:33:15 +00:00
|
|
|
}
|
|
|
|
|
2010-06-21 10:08:52 +00:00
|
|
|
#define GSM48_LEN2PLEN(a) (((a) << 2) | 1)
|
|
|
|
|
2010-12-23 13:39:29 +00:00
|
|
|
/* Format an IMM ASS REJ according to 04.08 Chapter 9.1.20 */
|
|
|
|
static int rsl_send_imm_ass_rej(struct gsm_bts *bts,
|
|
|
|
unsigned int num_req_refs,
|
|
|
|
struct gsm48_req_ref *rqd_refs,
|
|
|
|
uint8_t wait_ind)
|
|
|
|
{
|
|
|
|
uint8_t buf[GSM_MACBLOCK_LEN];
|
|
|
|
struct gsm48_imm_ass_rej *iar = (struct gsm48_imm_ass_rej *)buf;
|
|
|
|
|
|
|
|
/* create IMMEDIATE ASSIGN REJECT 04.08 message */
|
|
|
|
memset(iar, 0, sizeof(*iar));
|
|
|
|
iar->proto_discr = GSM48_PDISC_RR;
|
|
|
|
iar->msg_type = GSM48_MT_RR_IMM_ASS;
|
|
|
|
iar->page_mode = GSM48_PM_SAME;
|
|
|
|
|
|
|
|
memcpy(&iar->req_ref1, &rqd_refs[0], sizeof(iar->req_ref1));
|
|
|
|
iar->wait_ind1 = wait_ind;
|
|
|
|
|
|
|
|
if (num_req_refs >= 2)
|
|
|
|
memcpy(&iar->req_ref2, &rqd_refs[1], sizeof(iar->req_ref2));
|
|
|
|
else
|
|
|
|
memcpy(&iar->req_ref2, &rqd_refs[0], sizeof(iar->req_ref2));
|
|
|
|
iar->wait_ind2 = wait_ind;
|
|
|
|
|
|
|
|
if (num_req_refs >= 3)
|
|
|
|
memcpy(&iar->req_ref3, &rqd_refs[2], sizeof(iar->req_ref3));
|
|
|
|
else
|
|
|
|
memcpy(&iar->req_ref3, &rqd_refs[0], sizeof(iar->req_ref3));
|
|
|
|
iar->wait_ind3 = wait_ind;
|
|
|
|
|
|
|
|
if (num_req_refs >= 4)
|
|
|
|
memcpy(&iar->req_ref4, &rqd_refs[3], sizeof(iar->req_ref4));
|
|
|
|
else
|
|
|
|
memcpy(&iar->req_ref4, &rqd_refs[0], sizeof(iar->req_ref4));
|
|
|
|
iar->wait_ind4 = wait_ind;
|
|
|
|
|
|
|
|
return rsl_imm_assign_cmd(bts, sizeof(iar), (uint8_t *) iar);
|
|
|
|
}
|
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
/* MS has requested a channel on the RACH */
|
2008-12-23 20:25:15 +00:00
|
|
|
static int rsl_rx_chan_rqd(struct msgb *msg)
|
|
|
|
{
|
2008-12-26 20:25:35 +00:00
|
|
|
struct gsm_bts *bts = msg->trx->bts;
|
2008-12-25 23:28:35 +00:00
|
|
|
struct abis_rsl_dchan_hdr *rqd_hdr = msgb_l2(msg);
|
|
|
|
struct gsm48_req_ref *rqd_ref;
|
|
|
|
enum gsm_chan_t lctype;
|
2008-12-29 04:09:31 +00:00
|
|
|
enum gsm_chreq_reason_t chreq_reason;
|
2008-12-25 23:28:35 +00:00
|
|
|
struct gsm_lchan *lchan;
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t rqd_ta;
|
2010-09-06 00:58:42 +00:00
|
|
|
int is_lu;
|
2008-12-25 23:28:35 +00:00
|
|
|
|
2011-04-18 15:04:00 +00:00
|
|
|
uint16_t arfcn;
|
|
|
|
uint8_t ts_number, subch;
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
/* parse request reference to be used in immediate assign */
|
|
|
|
if (rqd_hdr->data[0] != RSL_IE_REQ_REFERENCE)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
rqd_ref = (struct gsm48_req_ref *) &rqd_hdr->data[1];
|
|
|
|
|
|
|
|
/* parse access delay and use as TA */
|
|
|
|
if (rqd_hdr->data[sizeof(struct gsm48_req_ref)+1] != RSL_IE_ACCESS_DELAY)
|
|
|
|
return -EINVAL;
|
|
|
|
rqd_ta = rqd_hdr->data[sizeof(struct gsm48_req_ref)+2];
|
|
|
|
|
|
|
|
/* determine channel type (SDCCH/TCH_F/TCH_H) based on
|
|
|
|
* request reference RA */
|
2010-09-06 01:36:02 +00:00
|
|
|
lctype = get_ctype_by_chreq(bts->network, rqd_ref->ra);
|
|
|
|
chreq_reason = get_reason_by_chreq(rqd_ref->ra, bts->network->neci);
|
2008-12-29 04:09:31 +00:00
|
|
|
|
2009-12-22 18:07:32 +00:00
|
|
|
counter_inc(bts->network->stats.chreq.total);
|
2009-12-21 23:41:05 +00:00
|
|
|
|
2010-09-06 00:58:42 +00:00
|
|
|
/*
|
|
|
|
* We want LOCATION UPDATES to succeed and will assign a TCH
|
|
|
|
* if we have no SDCCH available.
|
|
|
|
*/
|
|
|
|
is_lu = !!(chreq_reason == GSM_CHREQ_REASON_LOCATION_UPD);
|
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
/* check availability / allocate channel */
|
2010-09-06 00:58:42 +00:00
|
|
|
lchan = lchan_alloc(bts, lctype, is_lu);
|
2008-12-25 23:28:35 +00:00
|
|
|
if (!lchan) {
|
2009-12-27 12:48:09 +00:00
|
|
|
LOGP(DRSL, LOGL_NOTICE, "BTS %d CHAN RQD: no resources for %s 0x%x\n",
|
2009-12-27 17:05:25 +00:00
|
|
|
msg->lchan->ts->trx->bts->nr, gsm_lchant_name(lctype), rqd_ref->ra);
|
2009-12-22 18:07:32 +00:00
|
|
|
counter_inc(bts->network->stats.chreq.no_channel);
|
2010-12-23 13:39:29 +00:00
|
|
|
/* FIXME gather multiple CHAN RQD and reject up to 4 at the same time */
|
|
|
|
if (bts->network->T3122)
|
|
|
|
rsl_send_imm_ass_rej(bts, 1, rqd_ref, bts->network->T3122 & 0xff);
|
2008-12-25 23:28:35 +00:00
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2009-12-29 09:44:17 +00:00
|
|
|
if (lchan->state != LCHAN_S_NONE)
|
|
|
|
LOGP(DRSL, LOGL_NOTICE, "%s lchan_alloc() returned channel "
|
2009-12-29 09:52:38 +00:00
|
|
|
"in state %s\n", gsm_lchan_name(lchan),
|
|
|
|
gsm_lchans_name(lchan->state));
|
2010-04-09 22:12:31 +00:00
|
|
|
rsl_lchan_set_state(lchan, LCHAN_S_ACT_REQ);
|
2009-12-27 17:12:29 +00:00
|
|
|
|
2010-06-22 04:11:59 +00:00
|
|
|
/* save the RACH data as we need it after the CHAN ACT ACK */
|
|
|
|
lchan->rqd_ref = talloc_zero(bts, struct gsm48_req_ref);
|
|
|
|
if (!lchan->rqd_ref) {
|
|
|
|
LOGP(DRSL, LOGL_ERROR, "Failed to allocate gsm48_req_ref.\n");
|
|
|
|
lchan_free(lchan);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy(lchan->rqd_ref, rqd_ref, sizeof(*rqd_ref));
|
|
|
|
lchan->rqd_ta = rqd_ta;
|
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
ts_number = lchan->ts->nr;
|
|
|
|
arfcn = lchan->ts->trx->arfcn;
|
|
|
|
subch = lchan->nr;
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2009-08-30 06:37:11 +00:00
|
|
|
lchan->encr.alg_id = RSL_ENC_ALG_A5(0); /* no encryption */
|
2009-08-13 08:14:26 +00:00
|
|
|
lchan->ms_power = ms_pwr_ctl_lvl(bts->band, bts->ms_max_power);
|
2009-08-09 22:45:40 +00:00
|
|
|
lchan->bs_power = 0; /* 0dB reduction, output power = Pn */
|
2009-07-29 13:41:29 +00:00
|
|
|
lchan->rsl_cmode = RSL_CMOD_SPD_SIGN;
|
2009-08-28 14:28:28 +00:00
|
|
|
lchan->tch_mode = GSM48_CMODE_SIGN;
|
2010-06-22 04:11:59 +00:00
|
|
|
|
|
|
|
/* FIXME: Start another timer or assume the BTS sends a ACK/NACK? */
|
2009-12-16 23:31:10 +00:00
|
|
|
rsl_chan_activate_lchan(lchan, 0x00, rqd_ta, 0);
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2010-06-22 04:11:59 +00:00
|
|
|
DEBUGP(DRSL, "%s Activating ARFCN(%u) SS(%u) lctype %s "
|
|
|
|
"r=%s ra=0x%02x\n", gsm_lchan_name(lchan), arfcn, subch,
|
|
|
|
gsm_lchant_name(lchan->type), gsm_chreq_name(chreq_reason),
|
|
|
|
rqd_ref->ra);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int rsl_send_imm_assignment(struct gsm_lchan *lchan)
|
|
|
|
{
|
|
|
|
struct gsm_bts *bts = lchan->ts->trx->bts;
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t buf[GSM_MACBLOCK_LEN];
|
2010-06-22 04:11:59 +00:00
|
|
|
struct gsm48_imm_ass *ia = (struct gsm48_imm_ass *) buf;
|
|
|
|
|
2008-12-23 20:25:15 +00:00
|
|
|
/* create IMMEDIATE ASSIGN 04.08 messge */
|
2010-06-20 13:18:46 +00:00
|
|
|
memset(ia, 0, sizeof(*ia));
|
2010-06-21 10:08:52 +00:00
|
|
|
/* we set ia->l2_plen once we know the length of the MA below */
|
2010-06-20 13:18:46 +00:00
|
|
|
ia->proto_discr = GSM48_PDISC_RR;
|
|
|
|
ia->msg_type = GSM48_MT_RR_IMM_ASS;
|
|
|
|
ia->page_mode = GSM48_PM_SAME;
|
|
|
|
gsm48_lchan2chan_desc(&ia->chan_desc, lchan);
|
2010-06-14 20:26:10 +00:00
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
/* use request reference extracted from CHAN_RQD */
|
2010-06-22 04:11:59 +00:00
|
|
|
memcpy(&ia->req_ref, lchan->rqd_ref, sizeof(ia->req_ref));
|
|
|
|
ia->timing_advance = lchan->rqd_ta;
|
2010-06-14 20:26:10 +00:00
|
|
|
if (!lchan->ts->hopping.enabled) {
|
2010-06-20 13:18:46 +00:00
|
|
|
ia->mob_alloc_len = 0;
|
2010-06-14 20:26:10 +00:00
|
|
|
} else {
|
2010-06-20 13:18:46 +00:00
|
|
|
ia->mob_alloc_len = lchan->ts->hopping.ma_len;
|
|
|
|
memcpy(ia->mob_alloc, lchan->ts->hopping.ma_data, ia->mob_alloc_len);
|
2010-06-14 20:26:10 +00:00
|
|
|
}
|
2010-06-28 16:41:27 +00:00
|
|
|
/* we need to subtract 1 byte from sizeof(*ia) since ia includes the l2_plen field */
|
|
|
|
ia->l2_plen = GSM48_LEN2PLEN((sizeof(*ia)-1) + ia->mob_alloc_len);
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2009-08-09 22:26:10 +00:00
|
|
|
/* Start timer T3101 to wait for GSM48_MT_RR_PAG_RESP */
|
|
|
|
lchan->T3101.cb = t3101_expired;
|
|
|
|
lchan->T3101.data = lchan;
|
2011-05-06 10:11:06 +00:00
|
|
|
osmo_timer_schedule(&lchan->T3101, bts->network->T3101, 0);
|
2008-12-29 06:23:49 +00:00
|
|
|
|
2008-12-23 20:25:15 +00:00
|
|
|
/* send IMMEDIATE ASSIGN CMD on RSL to BTS (to send on CCCH to MS) */
|
2011-04-18 15:04:00 +00:00
|
|
|
return rsl_imm_assign_cmd(bts, sizeof(*ia)+ia->mob_alloc_len, (uint8_t *) ia);
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
|
|
|
|
2009-02-02 22:29:56 +00:00
|
|
|
/* MS has requested a channel on the RACH */
|
|
|
|
static int rsl_rx_ccch_load(struct msgb *msg)
|
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *rslh = msgb_l2(msg);
|
2011-04-18 15:04:00 +00:00
|
|
|
uint16_t pg_buf_space;
|
|
|
|
uint16_t rach_slot_count = -1;
|
|
|
|
uint16_t rach_busy_count = -1;
|
|
|
|
uint16_t rach_access_count = -1;
|
2009-02-02 22:29:56 +00:00
|
|
|
|
|
|
|
switch (rslh->data[0]) {
|
|
|
|
case RSL_IE_PAGING_LOAD:
|
|
|
|
pg_buf_space = rslh->data[1] << 8 | rslh->data[2];
|
2010-04-19 08:24:07 +00:00
|
|
|
if (is_ipaccess_bts(msg->trx->bts) && pg_buf_space == 0xffff) {
|
|
|
|
/* paging load below configured threshold, use 50 as default */
|
|
|
|
pg_buf_space = 50;
|
|
|
|
}
|
2009-02-10 00:06:19 +00:00
|
|
|
paging_update_buffer_space(msg->trx->bts, pg_buf_space);
|
2009-02-02 22:29:56 +00:00
|
|
|
break;
|
|
|
|
case RSL_IE_RACH_LOAD:
|
2009-02-03 20:08:51 +00:00
|
|
|
if (msg->data_len >= 7) {
|
|
|
|
rach_slot_count = rslh->data[2] << 8 | rslh->data[3];
|
|
|
|
rach_busy_count = rslh->data[4] << 8 | rslh->data[5];
|
|
|
|
rach_access_count = rslh->data[6] << 8 | rslh->data[7];
|
|
|
|
}
|
2009-02-02 22:29:56 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-12-23 20:25:15 +00:00
|
|
|
static int abis_rsl_rx_cchan(struct msgb *msg)
|
|
|
|
{
|
2009-02-02 22:29:56 +00:00
|
|
|
struct abis_rsl_dchan_hdr *rslh = msgb_l2(msg);
|
2008-12-25 23:28:35 +00:00
|
|
|
int rc = 0;
|
2008-12-23 20:25:15 +00:00
|
|
|
|
2008-12-25 23:28:35 +00:00
|
|
|
msg->lchan = lchan_lookup(msg->trx, rslh->chan_nr);
|
|
|
|
|
|
|
|
switch (rslh->c.msg_type) {
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_CHAN_RQD:
|
|
|
|
/* MS has requested a channel on the RACH */
|
|
|
|
rc = rsl_rx_chan_rqd(msg);
|
|
|
|
break;
|
2009-02-02 22:29:56 +00:00
|
|
|
case RSL_MT_CCCH_LOAD_IND:
|
|
|
|
/* current load on the CCCH */
|
|
|
|
rc = rsl_rx_ccch_load(msg);
|
|
|
|
break;
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_DELETE_IND:
|
|
|
|
/* CCCH overloaded, IMM_ASSIGN was dropped */
|
|
|
|
case RSL_MT_CBCH_LOAD_IND:
|
|
|
|
/* current load on the CBCH */
|
2009-12-17 22:10:46 +00:00
|
|
|
LOGP(DRSL, LOGL_NOTICE, "Unimplemented Abis RSL TRX message "
|
|
|
|
"type 0x%02x\n", rslh->c.msg_type);
|
2008-12-23 20:25:15 +00:00
|
|
|
break;
|
|
|
|
default:
|
2009-12-17 22:10:46 +00:00
|
|
|
LOGP(DRSL, LOGL_NOTICE, "Unknown Abis RSL TRX message type "
|
|
|
|
"0x%02x\n", rslh->c.msg_type);
|
2008-12-23 20:25:15 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
2008-12-25 23:28:35 +00:00
|
|
|
|
|
|
|
return rc;
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
|
|
|
|
2008-12-27 01:55:51 +00:00
|
|
|
static int rsl_rx_rll_err_ind(struct msgb *msg)
|
|
|
|
{
|
|
|
|
struct abis_rsl_rll_hdr *rllh = msgb_l2(msg);
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t *rlm_cause = rllh->data;
|
2008-12-27 01:55:51 +00:00
|
|
|
|
2009-12-26 22:55:00 +00:00
|
|
|
LOGP(DRLL, LOGL_ERROR, "%s ERROR INDICATION cause=%s\n",
|
2009-12-27 17:16:36 +00:00
|
|
|
gsm_lchan_name(msg->lchan),
|
2010-03-25 04:13:02 +00:00
|
|
|
rsl_rlm_cause_name(rlm_cause[1]));
|
2009-08-09 11:47:35 +00:00
|
|
|
|
|
|
|
rll_indication(msg->lchan, rllh->link_id, BSC_RLLR_IND_ERR_IND);
|
2009-12-26 22:55:00 +00:00
|
|
|
|
2010-04-17 04:48:29 +00:00
|
|
|
if (rlm_cause[1] == RLL_CAUSE_T200_EXPIRED) {
|
|
|
|
counter_inc(msg->lchan->ts->trx->bts->network->stats.chan.rll_err);
|
2010-05-31 13:38:24 +00:00
|
|
|
return rsl_rf_chan_release(msg->lchan, 1);
|
2010-04-17 04:48:29 +00:00
|
|
|
}
|
2009-07-04 07:40:05 +00:00
|
|
|
|
2008-12-27 01:55:51 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2009-02-19 17:07:39 +00:00
|
|
|
|
2010-04-08 20:39:34 +00:00
|
|
|
static void rsl_handle_release(struct gsm_lchan *lchan)
|
|
|
|
{
|
2010-07-29 09:09:36 +00:00
|
|
|
int sapi;
|
2010-05-31 13:33:15 +00:00
|
|
|
struct gsm_bts *bts;
|
2010-07-29 09:09:36 +00:00
|
|
|
|
|
|
|
/* maybe we have only brought down one RLL */
|
2010-04-08 20:47:44 +00:00
|
|
|
if (lchan->state != LCHAN_S_REL_REQ)
|
2010-07-29 09:09:36 +00:00
|
|
|
return;
|
|
|
|
|
|
|
|
for (sapi = 0; sapi < ARRAY_SIZE(lchan->sapis); ++sapi) {
|
|
|
|
if (lchan->sapis[sapi] == LCHAN_SAPI_UNUSED)
|
|
|
|
continue;
|
2010-12-24 11:51:07 +00:00
|
|
|
LOGP(DRSL, LOGL_DEBUG, "%s waiting for SAPI=%d to be released.\n",
|
2010-07-29 09:09:36 +00:00
|
|
|
gsm_lchan_name(lchan), sapi);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2010-04-08 20:47:44 +00:00
|
|
|
|
|
|
|
|
2010-05-31 13:33:15 +00:00
|
|
|
/* wait a bit to send the RF Channel Release */
|
|
|
|
lchan->T3111.cb = t3111_expired;
|
|
|
|
lchan->T3111.data = lchan;
|
|
|
|
bts = lchan->ts->trx->bts;
|
2011-05-06 10:11:06 +00:00
|
|
|
osmo_timer_schedule(&lchan->T3111, bts->network->T3111, 0);
|
2010-04-08 20:39:34 +00:00
|
|
|
}
|
|
|
|
|
2010-03-29 06:47:44 +00:00
|
|
|
/* ESTABLISH INDICATION, LOCATION AREA UPDATE REQUEST
|
2008-12-23 20:25:15 +00:00
|
|
|
0x02, 0x06,
|
|
|
|
0x01, 0x20,
|
|
|
|
0x02, 0x00,
|
|
|
|
0x0b, 0x00, 0x0f, 0x05, 0x08, ... */
|
|
|
|
|
|
|
|
static int abis_rsl_rx_rll(struct msgb *msg)
|
|
|
|
{
|
|
|
|
struct abis_rsl_rll_hdr *rllh = msgb_l2(msg);
|
2009-02-19 17:07:39 +00:00
|
|
|
int rc = 0;
|
|
|
|
char *ts_name;
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t sapi = rllh->link_id & 7;
|
2008-12-25 23:28:35 +00:00
|
|
|
|
|
|
|
msg->lchan = lchan_lookup(msg->trx, rllh->chan_nr);
|
2009-12-27 17:16:36 +00:00
|
|
|
ts_name = gsm_lchan_name(msg->lchan);
|
2009-12-24 11:20:20 +00:00
|
|
|
DEBUGP(DRLL, "%s SAPI=%u ", ts_name, sapi);
|
2008-12-23 20:25:15 +00:00
|
|
|
|
|
|
|
switch (rllh->c.msg_type) {
|
|
|
|
case RSL_MT_DATA_IND:
|
2009-02-19 17:07:39 +00:00
|
|
|
DEBUGPC(DRLL, "DATA INDICATION\n");
|
2010-03-29 06:47:44 +00:00
|
|
|
if (msgb_l2len(msg) >
|
2009-02-28 13:17:55 +00:00
|
|
|
sizeof(struct abis_rsl_common_hdr) + sizeof(*rllh) &&
|
|
|
|
rllh->data[0] == RSL_IE_L3_INFO) {
|
|
|
|
msg->l3h = &rllh->data[3];
|
2009-08-14 09:41:12 +00:00
|
|
|
return gsm0408_rcvmsg(msg, rllh->link_id);
|
2009-02-28 13:17:55 +00:00
|
|
|
}
|
2008-12-23 20:25:15 +00:00
|
|
|
break;
|
|
|
|
case RSL_MT_EST_IND:
|
2009-02-19 17:07:39 +00:00
|
|
|
DEBUGPC(DRLL, "ESTABLISH INDICATION\n");
|
2009-08-09 22:26:10 +00:00
|
|
|
/* lchan is established, stop T3101 */
|
2009-10-28 13:23:39 +00:00
|
|
|
msg->lchan->sapis[rllh->link_id & 0x7] = LCHAN_SAPI_MS;
|
2011-05-06 10:11:06 +00:00
|
|
|
osmo_timer_del(&msg->lchan->T3101);
|
2010-03-29 06:47:44 +00:00
|
|
|
if (msgb_l2len(msg) >
|
2009-02-28 13:17:55 +00:00
|
|
|
sizeof(struct abis_rsl_common_hdr) + sizeof(*rllh) &&
|
|
|
|
rllh->data[0] == RSL_IE_L3_INFO) {
|
|
|
|
msg->l3h = &rllh->data[3];
|
2009-08-14 09:41:12 +00:00
|
|
|
return gsm0408_rcvmsg(msg, rllh->link_id);
|
2009-02-28 13:17:55 +00:00
|
|
|
}
|
2008-12-23 20:25:15 +00:00
|
|
|
break;
|
2009-08-09 11:47:35 +00:00
|
|
|
case RSL_MT_EST_CONF:
|
2009-08-09 12:13:58 +00:00
|
|
|
DEBUGPC(DRLL, "ESTABLISH CONFIRM\n");
|
2009-10-28 13:23:39 +00:00
|
|
|
msg->lchan->sapis[rllh->link_id & 0x7] = LCHAN_SAPI_NET;
|
2009-08-09 11:47:35 +00:00
|
|
|
rll_indication(msg->lchan, rllh->link_id,
|
|
|
|
BSC_RLLR_IND_EST_CONF);
|
|
|
|
break;
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_REL_IND:
|
2009-08-08 11:15:07 +00:00
|
|
|
/* BTS informs us of having received DISC from MS */
|
2009-08-04 00:50:21 +00:00
|
|
|
DEBUGPC(DRLL, "RELEASE INDICATION\n");
|
2009-10-28 13:23:39 +00:00
|
|
|
msg->lchan->sapis[rllh->link_id & 0x7] = LCHAN_SAPI_UNUSED;
|
2009-08-09 11:47:35 +00:00
|
|
|
rll_indication(msg->lchan, rllh->link_id,
|
|
|
|
BSC_RLLR_IND_REL_IND);
|
2010-04-08 20:39:34 +00:00
|
|
|
rsl_handle_release(msg->lchan);
|
2010-07-29 09:09:36 +00:00
|
|
|
rsl_lchan_rll_release(msg->lchan, rllh->link_id);
|
2008-12-27 19:46:06 +00:00
|
|
|
break;
|
|
|
|
case RSL_MT_REL_CONF:
|
2009-08-08 11:15:07 +00:00
|
|
|
/* BTS informs us of having received UA from MS,
|
|
|
|
* in response to DISC that we've sent earlier */
|
2009-08-04 00:50:21 +00:00
|
|
|
DEBUGPC(DRLL, "RELEASE CONFIRMATION\n");
|
2009-10-28 13:23:39 +00:00
|
|
|
msg->lchan->sapis[rllh->link_id & 0x7] = LCHAN_SAPI_UNUSED;
|
2010-04-08 20:39:34 +00:00
|
|
|
rsl_handle_release(msg->lchan);
|
2010-07-29 09:09:36 +00:00
|
|
|
rsl_lchan_rll_release(msg->lchan, rllh->link_id);
|
2008-12-27 01:55:51 +00:00
|
|
|
break;
|
|
|
|
case RSL_MT_ERROR_IND:
|
|
|
|
rc = rsl_rx_rll_err_ind(msg);
|
|
|
|
break;
|
2008-12-23 20:25:15 +00:00
|
|
|
case RSL_MT_UNIT_DATA_IND:
|
2009-12-17 22:10:46 +00:00
|
|
|
LOGP(DRLL, LOGL_NOTICE, "unimplemented Abis RLL message "
|
|
|
|
"type 0x%02x\n", rllh->c.msg_type);
|
2008-12-23 20:25:15 +00:00
|
|
|
break;
|
|
|
|
default:
|
2009-12-17 22:10:46 +00:00
|
|
|
LOGP(DRLL, LOGL_NOTICE, "unknown Abis RLL message "
|
|
|
|
"type 0x%02x\n", rllh->c.msg_type);
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
2008-12-25 23:28:35 +00:00
|
|
|
return rc;
|
2008-12-23 20:25:15 +00:00
|
|
|
}
|
|
|
|
|
2011-04-18 15:04:00 +00:00
|
|
|
static uint8_t ipa_smod_s_for_lchan(struct gsm_lchan *lchan)
|
2009-07-28 16:11:56 +00:00
|
|
|
{
|
2009-12-01 20:28:23 +00:00
|
|
|
switch (lchan->tch_mode) {
|
2009-07-28 16:11:56 +00:00
|
|
|
case GSM48_CMODE_SPEECH_V1:
|
2009-12-01 20:28:23 +00:00
|
|
|
switch (lchan->type) {
|
|
|
|
case GSM_LCHAN_TCH_F:
|
|
|
|
return 0x00;
|
|
|
|
case GSM_LCHAN_TCH_H:
|
|
|
|
return 0x03;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
2009-07-28 16:11:56 +00:00
|
|
|
case GSM48_CMODE_SPEECH_EFR:
|
2009-12-01 20:28:23 +00:00
|
|
|
switch (lchan->type) {
|
|
|
|
case GSM_LCHAN_TCH_F:
|
|
|
|
return 0x01;
|
|
|
|
/* there's no half-rate EFR */
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
2009-07-28 16:11:56 +00:00
|
|
|
case GSM48_CMODE_SPEECH_AMR:
|
2009-12-01 20:28:23 +00:00
|
|
|
switch (lchan->type) {
|
|
|
|
case GSM_LCHAN_TCH_F:
|
|
|
|
return 0x02;
|
|
|
|
case GSM_LCHAN_TCH_H:
|
|
|
|
return 0x05;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
break;
|
2009-07-28 16:11:56 +00:00
|
|
|
}
|
2009-12-17 22:10:46 +00:00
|
|
|
LOGP(DRSL, LOGL_ERROR, "Cannot determine ip.access speech mode for "
|
2009-12-01 20:28:23 +00:00
|
|
|
"tch_mode == 0x%02x\n", lchan->tch_mode);
|
2009-07-28 16:11:56 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-04-18 15:04:00 +00:00
|
|
|
static uint8_t ipa_rtp_pt_for_lchan(struct gsm_lchan *lchan)
|
2009-12-20 21:06:40 +00:00
|
|
|
{
|
2010-11-14 20:09:08 +00:00
|
|
|
struct gsm_network *net = lchan->ts->trx->bts->network;
|
|
|
|
|
|
|
|
/* allow to hardcode the rtp payload */
|
|
|
|
if (net->hardcoded_rtp_payload != 0)
|
|
|
|
return net->hardcoded_rtp_payload;
|
|
|
|
|
2009-12-20 21:06:40 +00:00
|
|
|
switch (lchan->tch_mode) {
|
|
|
|
case GSM48_CMODE_SPEECH_V1:
|
|
|
|
switch (lchan->type) {
|
|
|
|
case GSM_LCHAN_TCH_F:
|
|
|
|
return RTP_PT_GSM_FULL;
|
|
|
|
case GSM_LCHAN_TCH_H:
|
|
|
|
return RTP_PT_GSM_HALF;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case GSM48_CMODE_SPEECH_EFR:
|
|
|
|
switch (lchan->type) {
|
|
|
|
case GSM_LCHAN_TCH_F:
|
|
|
|
return RTP_PT_GSM_EFR;
|
|
|
|
/* there's no half-rate EFR */
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case GSM48_CMODE_SPEECH_AMR:
|
|
|
|
switch (lchan->type) {
|
|
|
|
case GSM_LCHAN_TCH_F:
|
|
|
|
return RTP_PT_AMR_FULL;
|
|
|
|
case GSM_LCHAN_TCH_H:
|
|
|
|
return RTP_PT_AMR_HALF;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
LOGP(DRSL, LOGL_ERROR, "Cannot determine ip.access rtp payload type for "
|
|
|
|
"tch_mode == 0x%02x\n & lchan_type == %d",
|
|
|
|
lchan->tch_mode, lchan->type);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-02-16 21:12:08 +00:00
|
|
|
/* ip.access specific RSL extensions */
|
2009-12-19 15:42:06 +00:00
|
|
|
static void ipac_parse_rtp(struct gsm_lchan *lchan, struct tlv_parsed *tv)
|
|
|
|
{
|
|
|
|
struct in_addr ip;
|
2011-04-18 15:04:00 +00:00
|
|
|
uint16_t port, conn_id;
|
2009-12-19 15:42:06 +00:00
|
|
|
|
|
|
|
if (TLVP_PRESENT(tv, RSL_IE_IPAC_LOCAL_IP)) {
|
2011-04-18 15:04:00 +00:00
|
|
|
ip.s_addr = *((uint32_t *) TLVP_VAL(tv, RSL_IE_IPAC_LOCAL_IP));
|
2009-12-19 15:42:06 +00:00
|
|
|
DEBUGPC(DRSL, "LOCAL_IP=%s ", inet_ntoa(ip));
|
|
|
|
lchan->abis_ip.bound_ip = ntohl(ip.s_addr);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (TLVP_PRESENT(tv, RSL_IE_IPAC_LOCAL_PORT)) {
|
2011-04-18 15:04:00 +00:00
|
|
|
port = *((uint16_t *) TLVP_VAL(tv, RSL_IE_IPAC_LOCAL_PORT));
|
2009-12-19 15:42:06 +00:00
|
|
|
port = ntohs(port);
|
|
|
|
DEBUGPC(DRSL, "LOCAL_PORT=%u ", port);
|
|
|
|
lchan->abis_ip.bound_port = port;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (TLVP_PRESENT(tv, RSL_IE_IPAC_CONN_ID)) {
|
2011-04-18 15:04:00 +00:00
|
|
|
conn_id = *((uint16_t *) TLVP_VAL(tv, RSL_IE_IPAC_CONN_ID));
|
2009-12-19 15:42:06 +00:00
|
|
|
conn_id = ntohs(conn_id);
|
|
|
|
DEBUGPC(DRSL, "CON_ID=%u ", conn_id);
|
|
|
|
lchan->abis_ip.conn_id = conn_id;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (TLVP_PRESENT(tv, RSL_IE_IPAC_RTP_PAYLOAD2)) {
|
|
|
|
lchan->abis_ip.rtp_payload2 =
|
|
|
|
*TLVP_VAL(tv, RSL_IE_IPAC_RTP_PAYLOAD2);
|
|
|
|
DEBUGPC(DRSL, "RTP_PAYLOAD2=0x%02x ",
|
|
|
|
lchan->abis_ip.rtp_payload2);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (TLVP_PRESENT(tv, RSL_IE_IPAC_SPEECH_MODE)) {
|
|
|
|
lchan->abis_ip.speech_mode =
|
|
|
|
*TLVP_VAL(tv, RSL_IE_IPAC_SPEECH_MODE);
|
|
|
|
DEBUGPC(DRSL, "speech_mode=0x%02x ",
|
|
|
|
lchan->abis_ip.speech_mode);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (TLVP_PRESENT(tv, RSL_IE_IPAC_REMOTE_IP)) {
|
2011-04-18 15:04:00 +00:00
|
|
|
ip.s_addr = *((uint32_t *) TLVP_VAL(tv, RSL_IE_IPAC_REMOTE_IP));
|
2009-12-19 15:42:06 +00:00
|
|
|
DEBUGPC(DRSL, "REMOTE_IP=%s ", inet_ntoa(ip));
|
|
|
|
lchan->abis_ip.connect_ip = ntohl(ip.s_addr);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (TLVP_PRESENT(tv, RSL_IE_IPAC_REMOTE_PORT)) {
|
2011-04-18 15:04:00 +00:00
|
|
|
port = *((uint16_t *) TLVP_VAL(tv, RSL_IE_IPAC_REMOTE_PORT));
|
2009-12-19 15:42:06 +00:00
|
|
|
port = ntohs(port);
|
|
|
|
DEBUGPC(DRSL, "REMOTE_PORT=%u ", port);
|
|
|
|
lchan->abis_ip.connect_port = port;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-11-18 20:06:12 +00:00
|
|
|
int rsl_ipacc_crcx(struct gsm_lchan *lchan)
|
2009-02-16 21:12:08 +00:00
|
|
|
{
|
|
|
|
struct msgb *msg = rsl_msgb_alloc();
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
|
|
|
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
2009-11-18 20:06:12 +00:00
|
|
|
init_dchan_hdr(dh, RSL_MT_IPAC_CRCX);
|
2009-02-16 21:12:08 +00:00
|
|
|
dh->c.msg_discr = ABIS_RSL_MDISC_IPACCESS;
|
|
|
|
dh->chan_nr = lchan2chan_nr(lchan);
|
|
|
|
|
2009-07-28 16:11:56 +00:00
|
|
|
/* 0x1- == receive-only, 0x-1 == EFR codec */
|
2009-12-19 15:42:06 +00:00
|
|
|
lchan->abis_ip.speech_mode = 0x10 | ipa_smod_s_for_lchan(lchan);
|
2009-12-20 21:06:40 +00:00
|
|
|
lchan->abis_ip.rtp_payload = ipa_rtp_pt_for_lchan(lchan);
|
2009-12-19 15:42:06 +00:00
|
|
|
msgb_tv_put(msg, RSL_IE_IPAC_SPEECH_MODE, lchan->abis_ip.speech_mode);
|
2009-12-20 21:06:40 +00:00
|
|
|
msgb_tv_put(msg, RSL_IE_IPAC_RTP_PAYLOAD, lchan->abis_ip.rtp_payload);
|
2009-07-28 16:11:56 +00:00
|
|
|
|
2009-12-20 21:06:40 +00:00
|
|
|
DEBUGP(DRSL, "%s IPAC_BIND speech_mode=0x%02x RTP_PAYLOAD=%d\n",
|
|
|
|
gsm_lchan_name(lchan), lchan->abis_ip.speech_mode,
|
|
|
|
lchan->abis_ip.rtp_payload);
|
2009-07-28 16:11:56 +00:00
|
|
|
|
2009-02-16 21:12:08 +00:00
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
2011-04-18 15:04:00 +00:00
|
|
|
int rsl_ipacc_mdcx(struct gsm_lchan *lchan, uint32_t ip, uint16_t port,
|
|
|
|
uint8_t rtp_payload2)
|
2009-02-16 21:12:08 +00:00
|
|
|
{
|
|
|
|
struct msgb *msg = rsl_msgb_alloc();
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
2011-04-18 15:04:00 +00:00
|
|
|
uint32_t *att_ip;
|
2009-07-28 16:11:56 +00:00
|
|
|
struct in_addr ia;
|
2009-02-16 21:12:08 +00:00
|
|
|
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
2009-11-18 20:06:12 +00:00
|
|
|
init_dchan_hdr(dh, RSL_MT_IPAC_MDCX);
|
2009-02-16 21:12:08 +00:00
|
|
|
dh->c.msg_discr = ABIS_RSL_MDISC_IPACCESS;
|
|
|
|
dh->chan_nr = lchan2chan_nr(lchan);
|
|
|
|
|
2009-12-19 15:42:06 +00:00
|
|
|
/* we need to store these now as MDCX_ACK does not return them :( */
|
|
|
|
lchan->abis_ip.rtp_payload2 = rtp_payload2;
|
|
|
|
lchan->abis_ip.connect_port = port;
|
|
|
|
lchan->abis_ip.connect_ip = ip;
|
|
|
|
|
2009-07-29 10:12:18 +00:00
|
|
|
/* 0x0- == both directions, 0x-1 == EFR codec */
|
2009-12-19 15:42:06 +00:00
|
|
|
lchan->abis_ip.speech_mode = 0x00 | ipa_smod_s_for_lchan(lchan);
|
2009-12-20 21:06:40 +00:00
|
|
|
lchan->abis_ip.rtp_payload = ipa_rtp_pt_for_lchan(lchan);
|
2009-07-29 10:12:18 +00:00
|
|
|
|
2009-07-28 16:11:56 +00:00
|
|
|
ia.s_addr = htonl(ip);
|
2009-12-20 21:06:40 +00:00
|
|
|
DEBUGP(DRSL, "%s IPAC_MDCX IP=%s PORT=%d RTP_PAYLOAD=%d RTP_PAYLOAD2=%d "
|
|
|
|
"CONN_ID=%d speech_mode=0x%02x\n", gsm_lchan_name(lchan),
|
|
|
|
inet_ntoa(ia), port, lchan->abis_ip.rtp_payload, rtp_payload2,
|
|
|
|
lchan->abis_ip.conn_id, lchan->abis_ip.speech_mode);
|
2009-12-19 15:42:06 +00:00
|
|
|
|
|
|
|
msgb_tv16_put(msg, RSL_IE_IPAC_CONN_ID, lchan->abis_ip.conn_id);
|
|
|
|
msgb_v_put(msg, RSL_IE_IPAC_REMOTE_IP);
|
2011-04-18 15:04:00 +00:00
|
|
|
att_ip = (uint32_t *) msgb_put(msg, sizeof(ip));
|
2009-12-19 15:42:06 +00:00
|
|
|
*att_ip = ia.s_addr;
|
|
|
|
msgb_tv16_put(msg, RSL_IE_IPAC_REMOTE_PORT, port);
|
|
|
|
msgb_tv_put(msg, RSL_IE_IPAC_SPEECH_MODE, lchan->abis_ip.speech_mode);
|
2009-12-20 21:06:40 +00:00
|
|
|
msgb_tv_put(msg, RSL_IE_IPAC_RTP_PAYLOAD, lchan->abis_ip.rtp_payload);
|
2009-07-28 16:11:56 +00:00
|
|
|
if (rtp_payload2)
|
|
|
|
msgb_tv_put(msg, RSL_IE_IPAC_RTP_PAYLOAD2, rtp_payload2);
|
|
|
|
|
2009-02-16 21:12:08 +00:00
|
|
|
msg->trx = lchan->ts->trx;
|
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
2009-12-20 15:51:09 +00:00
|
|
|
/* tell BTS to connect RTP stream to our local RTP socket */
|
|
|
|
int rsl_ipacc_mdcx_to_rtpsock(struct gsm_lchan *lchan)
|
|
|
|
{
|
|
|
|
struct rtp_socket *rs = lchan->abis_ip.rtp_socket;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = rsl_ipacc_mdcx(lchan, ntohl(rs->rtp.sin_local.sin_addr.s_addr),
|
|
|
|
ntohs(rs->rtp.sin_local.sin_port),
|
|
|
|
/* FIXME: use RTP payload of bound socket, not BTS*/
|
|
|
|
lchan->abis_ip.rtp_payload2);
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2010-12-23 11:59:52 +00:00
|
|
|
int rsl_ipacc_pdch_activate(struct gsm_bts_trx_ts *ts, int act)
|
2009-10-24 08:29:22 +00:00
|
|
|
{
|
|
|
|
struct msgb *msg = rsl_msgb_alloc();
|
|
|
|
struct abis_rsl_dchan_hdr *dh;
|
2011-04-18 15:04:00 +00:00
|
|
|
uint8_t msg_type;
|
2010-03-28 06:42:09 +00:00
|
|
|
|
|
|
|
if (act)
|
|
|
|
msg_type = RSL_MT_IPAC_PDCH_ACT;
|
|
|
|
else
|
|
|
|
msg_type = RSL_MT_IPAC_PDCH_DEACT;
|
2009-10-24 08:29:22 +00:00
|
|
|
|
|
|
|
dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
|
2010-03-28 06:42:09 +00:00
|
|
|
init_dchan_hdr(dh, msg_type);
|
2009-10-24 08:29:22 +00:00
|
|
|
dh->c.msg_discr = ABIS_RSL_MDISC_DED_CHAN;
|
2010-12-23 11:59:52 +00:00
|
|
|
dh->chan_nr = ts2chan_nr(ts, 0);
|
2009-10-24 08:29:22 +00:00
|
|
|
|
2010-12-23 11:59:52 +00:00
|
|
|
DEBUGP(DRSL, "%s IPAC_PDCH_%sACT\n", gsm_ts_name(ts),
|
2010-03-28 06:42:09 +00:00
|
|
|
act ? "" : "DE");
|
2009-10-24 08:29:22 +00:00
|
|
|
|
2010-12-23 11:59:52 +00:00
|
|
|
msg->trx = ts->trx;
|
2009-10-24 08:29:22 +00:00
|
|
|
|
|
|
|
return abis_rsl_sendmsg(msg);
|
|
|
|
}
|
|
|
|
|
2009-11-18 20:06:12 +00:00
|
|
|
static int abis_rsl_rx_ipacc_crcx_ack(struct msgb *msg)
|
2009-02-16 21:12:08 +00:00
|
|
|
{
|
|
|
|
struct abis_rsl_dchan_hdr *dh = msgb_l2(msg);
|
|
|
|
struct tlv_parsed tv;
|
2009-12-01 20:26:49 +00:00
|
|
|
struct gsm_lchan *lchan = msg->lchan;
|
2009-02-16 21:12:08 +00:00
|
|
|
|
|
|
|
/* the BTS has acknowledged a local bind, it now tells us the IP
|
|
|
|
* address and port number to which it has bound the given logical
|
|
|
|
* channel */
|
|
|
|
|
|
|
|
rsl_tlv_parse(&tv, dh->data, msgb_l2len(msg)-sizeof(*dh));
|
|
|
|
if (!TLVP_PRESENT(&tv, RSL_IE_IPAC_LOCAL_PORT) ||
|
|
|
|
!TLVP_PRESENT(&tv, RSL_IE_IPAC_LOCAL_IP) ||
|
2009-07-12 07:45:05 +00:00
|
|
|
!TLVP_PRESENT(&tv, RSL_IE_IPAC_CONN_ID)) {
|
2009-12-17 22:10:46 +00:00
|
|
|
LOGP(DRSL, LOGL_NOTICE, "mandatory IE missing");
|
2009-02-16 21:12:08 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
2009-12-20 14:42:44 +00:00
|
|
|
|
2009-12-19 15:42:06 +00:00
|
|
|
ipac_parse_rtp(lchan, &tv);
|
2009-12-20 14:42:44 +00:00
|
|
|
|
2011-05-06 10:12:31 +00:00
|
|
|
osmo_signal_dispatch(SS_ABISIP, S_ABISIP_CRCX_ACK, msg->lchan);
|
2009-02-16 21:12:08 +00:00
|
|
|
|
2009-12-19 15:42:06 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2009-07-28 16:11:56 +00:00
|
|
|
|
2009-12-19 15:42:06 +00:00
|
|
|
static int abis_rsl_rx_ipacc_mdcx_ack(struct msgb *msg)
|
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{
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struct abis_rsl_dchan_hdr *dh = msgb_l2(msg);
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struct tlv_parsed tv;
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struct gsm_lchan *lchan = msg->lchan;
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2009-02-17 14:35:45 +00:00
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2009-12-19 15:42:06 +00:00
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/* the BTS has acknowledged a remote connect request and
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* it now tells us the IP address and port number to which it has
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* connected the given logical channel */
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2009-02-16 21:12:08 +00:00
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2009-12-19 15:42:06 +00:00
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rsl_tlv_parse(&tv, dh->data, msgb_l2len(msg)-sizeof(*dh));
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ipac_parse_rtp(lchan, &tv);
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2011-05-06 10:12:31 +00:00
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osmo_signal_dispatch(SS_ABISIP, S_ABISIP_MDCX_ACK, msg->lchan);
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2009-02-17 14:35:45 +00:00
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2009-02-16 21:12:08 +00:00
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return 0;
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}
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2009-11-18 20:06:12 +00:00
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static int abis_rsl_rx_ipacc_dlcx_ind(struct msgb *msg)
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2009-02-16 21:12:08 +00:00
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{
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struct abis_rsl_dchan_hdr *dh = msgb_l2(msg);
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struct tlv_parsed tv;
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rsl_tlv_parse(&tv, dh->data, msgb_l2len(msg)-sizeof(*dh));
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2009-07-28 15:58:09 +00:00
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if (TLVP_PRESENT(&tv, RSL_IE_CAUSE))
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2009-12-24 11:20:20 +00:00
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print_rsl_cause(LOGL_DEBUG, TLVP_VAL(&tv, RSL_IE_CAUSE),
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2009-07-28 15:58:09 +00:00
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TLVP_LEN(&tv, RSL_IE_CAUSE));
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2009-02-16 21:12:08 +00:00
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2011-05-06 10:12:31 +00:00
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osmo_signal_dispatch(SS_ABISIP, S_ABISIP_DLCX_IND, msg->lchan);
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2009-07-28 16:02:05 +00:00
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2009-02-16 21:12:08 +00:00
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return 0;
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}
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static int abis_rsl_rx_ipacc(struct msgb *msg)
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{
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struct abis_rsl_rll_hdr *rllh = msgb_l2(msg);
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2009-12-24 11:20:20 +00:00
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char *ts_name;
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2009-02-16 21:12:08 +00:00
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int rc = 0;
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msg->lchan = lchan_lookup(msg->trx, rllh->chan_nr);
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2009-12-27 17:16:36 +00:00
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ts_name = gsm_lchan_name(msg->lchan);
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2009-02-16 21:12:08 +00:00
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switch (rllh->c.msg_type) {
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2009-11-18 20:06:12 +00:00
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case RSL_MT_IPAC_CRCX_ACK:
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2009-12-24 11:20:20 +00:00
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DEBUGP(DRSL, "%s IPAC_CRCX_ACK ", ts_name);
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2009-11-18 20:06:12 +00:00
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rc = abis_rsl_rx_ipacc_crcx_ack(msg);
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2009-02-16 21:12:08 +00:00
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break;
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2009-11-18 20:06:12 +00:00
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case RSL_MT_IPAC_CRCX_NACK:
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2009-02-16 21:12:08 +00:00
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/* somehow the BTS was unable to bind the lchan to its local
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* port?!? */
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2009-12-24 11:20:20 +00:00
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LOGP(DRSL, LOGL_ERROR, "%s IPAC_CRCX_NACK\n", ts_name);
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2009-02-16 21:12:08 +00:00
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break;
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2009-11-18 20:06:12 +00:00
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case RSL_MT_IPAC_MDCX_ACK:
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2009-02-16 21:12:08 +00:00
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/* the BTS tells us that a connect operation was successful */
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2009-12-24 11:20:20 +00:00
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DEBUGP(DRSL, "%s IPAC_MDCX_ACK ", ts_name);
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2009-12-19 15:42:06 +00:00
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rc = abis_rsl_rx_ipacc_mdcx_ack(msg);
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2009-02-16 21:12:08 +00:00
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break;
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2009-11-18 20:06:12 +00:00
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case RSL_MT_IPAC_MDCX_NACK:
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2009-02-16 21:12:08 +00:00
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/* somehow the BTS was unable to connect the lchan to a remote
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* port */
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2009-12-24 11:20:20 +00:00
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LOGP(DRSL, LOGL_ERROR, "%s IPAC_MDCX_NACK\n", ts_name);
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2009-02-16 21:12:08 +00:00
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break;
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2009-11-18 20:06:12 +00:00
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case RSL_MT_IPAC_DLCX_IND:
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2009-12-24 11:20:20 +00:00
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DEBUGP(DRSL, "%s IPAC_DLCX_IND ", ts_name);
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2009-11-18 20:06:12 +00:00
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rc = abis_rsl_rx_ipacc_dlcx_ind(msg);
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2009-02-16 21:12:08 +00:00
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break;
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default:
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2009-12-24 11:20:20 +00:00
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LOGP(DRSL, LOGL_NOTICE, "Unknown ip.access msg_type 0x%02x\n",
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2009-12-17 22:10:46 +00:00
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rllh->c.msg_type);
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2009-02-16 21:12:08 +00:00
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break;
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}
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2009-05-01 17:21:37 +00:00
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DEBUGPC(DRSL, "\n");
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2009-02-16 21:12:08 +00:00
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return rc;
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}
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2008-12-23 20:25:15 +00:00
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/* Entry-point where L2 RSL from BTS enters */
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2008-12-25 23:28:35 +00:00
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int abis_rsl_rcvmsg(struct msgb *msg)
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2008-12-23 20:25:15 +00:00
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{
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2009-11-20 14:14:01 +00:00
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struct abis_rsl_common_hdr *rslh;
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2009-02-03 12:57:37 +00:00
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int rc = 0;
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2008-12-23 20:25:15 +00:00
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2009-11-20 14:14:01 +00:00
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if (!msg) {
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DEBUGP(DRSL, "Empty RSL msg?..\n");
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return -1;
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}
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if (msgb_l2len(msg) < sizeof(*rslh)) {
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DEBUGP(DRSL, "Truncated RSL message with l2len: %u\n", msgb_l2len(msg));
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return -1;
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}
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rslh = msgb_l2(msg);
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2008-12-23 20:25:15 +00:00
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switch (rslh->msg_discr & 0xfe) {
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case ABIS_RSL_MDISC_RLL:
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rc = abis_rsl_rx_rll(msg);
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break;
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case ABIS_RSL_MDISC_DED_CHAN:
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rc = abis_rsl_rx_dchan(msg);
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break;
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case ABIS_RSL_MDISC_COM_CHAN:
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rc = abis_rsl_rx_cchan(msg);
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break;
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2008-12-25 23:28:35 +00:00
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case ABIS_RSL_MDISC_TRX:
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rc = abis_rsl_rx_trx(msg);
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break;
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2008-12-23 20:25:15 +00:00
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case ABIS_RSL_MDISC_LOC:
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2009-12-17 22:10:46 +00:00
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LOGP(DRSL, LOGL_NOTICE, "unimplemented RSL msg disc 0x%02x\n",
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2009-02-03 12:57:37 +00:00
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rslh->msg_discr);
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break;
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2009-02-16 21:12:08 +00:00
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case ABIS_RSL_MDISC_IPACCESS:
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rc = abis_rsl_rx_ipacc(msg);
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break;
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2008-12-23 20:25:15 +00:00
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default:
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2009-12-17 22:10:46 +00:00
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LOGP(DRSL, LOGL_NOTICE, "unknown RSL message discriminator "
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"0x%02x\n", rslh->msg_discr);
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2008-12-23 20:25:15 +00:00
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return -EINVAL;
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}
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2008-12-26 00:04:49 +00:00
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msgb_free(msg);
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2008-12-25 23:28:35 +00:00
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return rc;
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2008-12-23 20:25:15 +00:00
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}
|
2009-02-04 00:31:39 +00:00
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/* From Table 10.5.33 of GSM 04.08 */
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int rsl_number_of_paging_subchannels(struct gsm_bts *bts)
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{
|
2009-12-01 12:34:30 +00:00
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if (bts->si_common.chan_desc.ccch_conf == RSL_BCCH_CCCH_CONF_1_C) {
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return MAX(1, (3 - bts->si_common.chan_desc.bs_ag_blks_res))
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* (bts->si_common.chan_desc.bs_pa_mfrms + 2);
|
2009-02-04 00:31:39 +00:00
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} else {
|
2009-12-01 12:34:30 +00:00
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return (9 - bts->si_common.chan_desc.bs_ag_blks_res)
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* (bts->si_common.chan_desc.bs_pa_mfrms + 2);
|
2009-02-04 00:31:39 +00:00
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}
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}
|
2010-07-21 07:54:32 +00:00
|
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|
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|
|
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int rsl_sms_cb_command(struct gsm_bts *bts, uint8_t chan_number,
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|
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uint8_t cb_command, const uint8_t *data, int len)
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|
|
{
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|
|
struct abis_rsl_dchan_hdr *dh;
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|
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struct msgb *cb_cmd;
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cb_cmd = rsl_msgb_alloc();
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if (!cb_cmd)
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return -1;
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dh = (struct abis_rsl_dchan_hdr *) msgb_put(cb_cmd, sizeof*dh);
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|
init_dchan_hdr(dh, RSL_MT_SMS_BC_CMD);
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dh->chan_nr = RSL_CHAN_SDCCH4_ACCH; /* TODO: check the chan config */
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|
msgb_tv_put(cb_cmd, RSL_IE_CB_CMD_TYPE, cb_command);
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|
msgb_tlv_put(cb_cmd, RSL_IE_SMSCB_MSG, len, data);
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cb_cmd->trx = bts->c0;
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|
return abis_rsl_sendmsg(cb_cmd);
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|
}
|