521 lines
15 KiB
C
521 lines
15 KiB
C
/* ip.access nanoBTS specific code */
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/* (C) 2009-2010 by Harald Welte <laforge@gnumonks.org>
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*
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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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* 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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* (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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* GNU Affero General Public License for more details.
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*
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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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*
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*/
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#include <arpa/inet.h>
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#include <osmocom/gsm/tlv.h>
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#include <openbsc/gsm_data.h>
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#include <openbsc/signal.h>
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#include <openbsc/abis_nm.h>
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#include <osmocom/abis/e1_input.h>
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#include <osmocom/gsm/tlv.h>
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#include <osmocom/core/msgb.h>
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#include <osmocom/core/talloc.h>
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#include <openbsc/gsm_data.h>
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#include <openbsc/abis_nm.h>
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#include <openbsc/abis_rsl.h>
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#include <openbsc/debug.h>
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#include <osmocom/abis/subchan_demux.h>
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#include <osmocom/gsm/ipa.h>
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#include <osmocom/abis/ipaccess.h>
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#include <osmocom/core/logging.h>
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#include <openbsc/ipaccess.h>
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#include <openbsc/bts_ipaccess_nanobts_omlattr.h>
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extern struct gsm_network *bsc_gsmnet;
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static int bts_model_nanobts_start(struct gsm_network *net);
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static void bts_model_nanobts_e1line_bind_ops(struct e1inp_line *line);
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struct gsm_bts_model bts_model_nanobts = {
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.type = GSM_BTS_TYPE_NANOBTS,
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.name = "nanobts",
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.start = bts_model_nanobts_start,
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.oml_rcvmsg = &abis_nm_rcvmsg,
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.e1line_bind_ops = bts_model_nanobts_e1line_bind_ops,
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.nm_att_tlvdef = {
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.def = {
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/* ip.access specifics */
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[NM_ATT_IPACC_DST_IP] = { TLV_TYPE_FIXED, 4 },
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[NM_ATT_IPACC_DST_IP_PORT] = { TLV_TYPE_FIXED, 2 },
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[NM_ATT_IPACC_STREAM_ID] = { TLV_TYPE_TV, },
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[NM_ATT_IPACC_SEC_OML_CFG] = { TLV_TYPE_FIXED, 6 },
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[NM_ATT_IPACC_IP_IF_CFG] = { TLV_TYPE_FIXED, 8 },
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[NM_ATT_IPACC_IP_GW_CFG] = { TLV_TYPE_FIXED, 12 },
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[NM_ATT_IPACC_IN_SERV_TIME] = { TLV_TYPE_FIXED, 4 },
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[NM_ATT_IPACC_LOCATION] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_PAGING_CFG] = { TLV_TYPE_FIXED, 2 },
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[NM_ATT_IPACC_UNIT_ID] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_UNIT_NAME] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_SNMP_CFG] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_PRIM_OML_CFG_LIST] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_NV_FLAGS] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_FREQ_CTRL] = { TLV_TYPE_FIXED, 2 },
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[NM_ATT_IPACC_PRIM_OML_FB_TOUT] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_CUR_SW_CFG] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_TIMING_BUS] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_CGI] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_RAC] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_OBJ_VERSION] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_GPRS_PAGING_CFG]= { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_NSEI] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_BVCI] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_NSVCI] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_NS_CFG] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_BSSGP_CFG] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_NS_LINK_CFG] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_RLC_CFG] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_ALM_THRESH_LIST]= { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_MONIT_VAL_LIST] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_TIB_CONTROL] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_SUPP_FEATURES] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_CODING_SCHEMES] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_RLC_CFG_2] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_HEARTB_TOUT] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_UPTIME] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_RLC_CFG_3] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_SSL_CFG] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_SEC_POSSIBLE] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_IML_SSL_STATE] = { TLV_TYPE_TL16V },
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[NM_ATT_IPACC_REVOC_DATE] = { TLV_TYPE_TL16V },
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},
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},
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};
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/* Callback function to be called whenever we get a GSM 12.21 state change event */
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static int nm_statechg_event(int evt, struct nm_statechg_signal_data *nsd)
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{
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uint8_t obj_class = nsd->obj_class;
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void *obj = nsd->obj;
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struct gsm_nm_state *new_state = nsd->new_state;
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struct gsm_bts *bts;
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struct gsm_bts_trx *trx;
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struct gsm_bts_trx_ts *ts;
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struct gsm_bts_gprs_nsvc *nsvc;
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struct msgb *msgb;
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if (!is_ipaccess_bts(nsd->bts))
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return 0;
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/* This event-driven BTS setup is currently only required on nanoBTS */
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/* S_NM_STATECHG_ADM is called after we call chg_adm_state() and would create
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* endless loop */
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if (evt != S_NM_STATECHG_OPER)
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return 0;
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switch (obj_class) {
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case NM_OC_SITE_MANAGER:
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bts = container_of(obj, struct gsm_bts, site_mgr);
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if ((new_state->operational == NM_OPSTATE_ENABLED &&
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new_state->availability == NM_AVSTATE_OK) ||
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(new_state->operational == NM_OPSTATE_DISABLED &&
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new_state->availability == NM_AVSTATE_OFF_LINE))
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abis_nm_opstart(bts, obj_class, 0xff, 0xff, 0xff);
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break;
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case NM_OC_BTS:
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bts = obj;
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if (new_state->availability == NM_AVSTATE_DEPENDENCY) {
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msgb = nanobts_attr_bts_get(bts);
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abis_nm_set_bts_attr(bts, msgb->data, msgb->len);
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msgb_free(msgb);
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abis_nm_chg_adm_state(bts, obj_class,
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bts->bts_nr, 0xff, 0xff,
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NM_STATE_UNLOCKED);
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abis_nm_opstart(bts, obj_class,
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bts->bts_nr, 0xff, 0xff);
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}
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break;
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case NM_OC_CHANNEL:
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ts = obj;
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trx = ts->trx;
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if (new_state->operational == NM_OPSTATE_DISABLED &&
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new_state->availability == NM_AVSTATE_DEPENDENCY) {
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enum abis_nm_chan_comb ccomb =
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abis_nm_chcomb4pchan(ts->pchan);
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if (abis_nm_set_channel_attr(ts, ccomb) == -EINVAL) {
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ipaccess_drop_oml(trx->bts);
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return -1;
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}
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abis_nm_chg_adm_state(trx->bts, obj_class,
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trx->bts->bts_nr, trx->nr, ts->nr,
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NM_STATE_UNLOCKED);
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abis_nm_opstart(trx->bts, obj_class,
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trx->bts->bts_nr, trx->nr, ts->nr);
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}
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if (new_state->operational == NM_OPSTATE_ENABLED
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&& new_state->availability == NM_AVSTATE_OK)
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dyn_ts_init(ts);
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break;
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case NM_OC_RADIO_CARRIER:
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trx = obj;
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if (new_state->operational == NM_OPSTATE_DISABLED &&
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new_state->availability == NM_AVSTATE_OK)
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abis_nm_opstart(trx->bts, obj_class, trx->bts->bts_nr,
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trx->nr, 0xff);
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break;
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case NM_OC_GPRS_NSE:
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bts = container_of(obj, struct gsm_bts, gprs.nse);
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if (bts->gprs.mode == BTS_GPRS_NONE)
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break;
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if (new_state->availability == NM_AVSTATE_DEPENDENCY) {
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msgb = nanobts_attr_nse_get(bts);
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abis_nm_ipaccess_set_attr(bts, obj_class, bts->bts_nr,
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0xff, 0xff, msgb->data,
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msgb->len);
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msgb_free(msgb);
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abis_nm_opstart(bts, obj_class, bts->bts_nr,
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0xff, 0xff);
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}
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break;
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case NM_OC_GPRS_CELL:
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bts = container_of(obj, struct gsm_bts, gprs.cell);
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if (bts->gprs.mode == BTS_GPRS_NONE)
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break;
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if (new_state->availability == NM_AVSTATE_DEPENDENCY) {
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msgb = nanobts_attr_cell_get(bts);
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abis_nm_ipaccess_set_attr(bts, obj_class, bts->bts_nr,
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0, 0xff, msgb->data,
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msgb->len);
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msgb_free(msgb);
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abis_nm_opstart(bts, obj_class, bts->bts_nr,
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0, 0xff);
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abis_nm_chg_adm_state(bts, obj_class, bts->bts_nr,
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0, 0xff, NM_STATE_UNLOCKED);
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abis_nm_chg_adm_state(bts, NM_OC_GPRS_NSE, bts->bts_nr,
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0xff, 0xff, NM_STATE_UNLOCKED);
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}
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break;
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case NM_OC_GPRS_NSVC:
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nsvc = obj;
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bts = nsvc->bts;
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if (bts->gprs.mode == BTS_GPRS_NONE)
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break;
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/* We skip NSVC1 since we only use NSVC0 */
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if (nsvc->id == 1)
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break;
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if ((new_state->availability == NM_AVSTATE_OFF_LINE) ||
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(new_state->availability == NM_AVSTATE_DEPENDENCY)) {
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msgb = nanobts_attr_nscv_get(bts);
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abis_nm_ipaccess_set_attr(bts, obj_class, bts->bts_nr,
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nsvc->id, 0xff,
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msgb->data, msgb->len);
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msgb_free(msgb);
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abis_nm_opstart(bts, obj_class, bts->bts_nr,
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nsvc->id, 0xff);
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abis_nm_chg_adm_state(bts, obj_class, bts->bts_nr,
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nsvc->id, 0xff,
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NM_STATE_UNLOCKED);
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}
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default:
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break;
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}
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return 0;
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}
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/* Callback function to be called every time we receive a 12.21 SW activated report */
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static int sw_activ_rep(struct msgb *mb)
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{
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struct abis_om_fom_hdr *foh = msgb_l3(mb);
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struct e1inp_sign_link *sign_link = mb->dst;
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struct gsm_bts *bts = sign_link->trx->bts;
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struct gsm_bts_trx *trx = gsm_bts_trx_num(bts, foh->obj_inst.trx_nr);
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if (!trx)
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return -EINVAL;
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if (!is_ipaccess_bts(trx->bts))
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return 0;
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switch (foh->obj_class) {
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case NM_OC_BASEB_TRANSC:
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abis_nm_chg_adm_state(trx->bts, foh->obj_class,
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trx->bts->bts_nr, trx->nr, 0xff,
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NM_STATE_UNLOCKED);
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abis_nm_opstart(trx->bts, foh->obj_class,
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trx->bts->bts_nr, trx->nr, 0xff);
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/* TRX software is active, tell it to initiate RSL Link */
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abis_nm_ipaccess_rsl_connect(trx, trx->bts->ip_access.rsl_ip,
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3003, trx->rsl_tei);
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break;
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case NM_OC_RADIO_CARRIER: {
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/*
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* Locking the radio carrier will make it go
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* offline again and we would come here. The
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* framework should determine that there was
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* no change and avoid recursion.
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*
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* This code is here to make sure that on start
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* a TRX remains locked.
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*/
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int rc_state = trx->mo.nm_state.administrative;
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/* Patch ARFCN into radio attribute */
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struct msgb *msgb = nanobts_attr_radio_get(trx->bts, trx);
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abis_nm_set_radio_attr(trx, msgb->data, msgb->len);
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msgb_free(msgb);
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abis_nm_chg_adm_state(trx->bts, foh->obj_class,
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trx->bts->bts_nr, trx->nr, 0xff,
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rc_state);
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abis_nm_opstart(trx->bts, foh->obj_class, trx->bts->bts_nr,
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trx->nr, 0xff);
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break;
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}
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}
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return 0;
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}
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/* Callback function to be called every time we receive a signal from NM */
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static int bts_ipa_nm_sig_cb(unsigned int subsys, unsigned int signal,
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void *handler_data, void *signal_data)
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{
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if (subsys != SS_NM)
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return 0;
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switch (signal) {
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case S_NM_SW_ACTIV_REP:
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return sw_activ_rep(signal_data);
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case S_NM_STATECHG_OPER:
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case S_NM_STATECHG_ADM:
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return nm_statechg_event(signal, signal_data);
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default:
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break;
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}
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return 0;
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}
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static int bts_model_nanobts_start(struct gsm_network *net)
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{
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osmo_signal_unregister_handler(SS_NM, bts_ipa_nm_sig_cb, NULL);
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osmo_signal_register_handler(SS_NM, bts_ipa_nm_sig_cb, NULL);
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return 0;
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}
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int bts_model_nanobts_init(void)
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{
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bts_model_nanobts.features.data = &bts_model_nanobts._features_data[0];
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bts_model_nanobts.features.data_len =
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sizeof(bts_model_nanobts._features_data);
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gsm_btsmodel_set_feature(&bts_model_nanobts, BTS_FEAT_GPRS);
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gsm_btsmodel_set_feature(&bts_model_nanobts, BTS_FEAT_EGPRS);
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gsm_btsmodel_set_feature(&bts_model_nanobts, BTS_FEAT_MULTI_TSC);
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return gsm_bts_model_register(&bts_model_nanobts);
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}
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#define OML_UP 0x0001
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#define RSL_UP 0x0002
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static struct gsm_bts *
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find_bts_by_unitid(struct gsm_network *net, uint16_t site_id, uint16_t bts_id)
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{
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struct gsm_bts *bts;
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llist_for_each_entry(bts, &net->bts_list, list) {
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if (!is_ipaccess_bts(bts))
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continue;
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if (bts->ip_access.site_id == site_id &&
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bts->ip_access.bts_id == bts_id)
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return bts;
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}
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return NULL;
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}
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/* These are exported because they are used by the VTY interface. */
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void ipaccess_drop_rsl(struct gsm_bts_trx *trx)
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{
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if (!trx->rsl_link)
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return;
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e1inp_sign_link_destroy(trx->rsl_link);
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trx->rsl_link = NULL;
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}
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void ipaccess_drop_oml(struct gsm_bts *bts)
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{
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struct gsm_bts *rdep_bts;
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struct gsm_bts_trx *trx;
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if (!bts->oml_link)
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return;
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e1inp_sign_link_destroy(bts->oml_link);
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bts->oml_link = NULL;
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/* we have issues reconnecting RSL, drop everything. */
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llist_for_each_entry(trx, &bts->trx_list, list)
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ipaccess_drop_rsl(trx);
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bts->ip_access.flags = 0;
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/*
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* Go through the list and see if we are the depndency of a BTS
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* and then drop the BTS. This can lead to some recursion but it
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* should be fine in userspace.
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* The oml_link is serving as recursion anchor for us and
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* it is set to NULL some lines above.
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*/
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llist_for_each_entry(rdep_bts, &bts->network->bts_list, list) {
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if (!bts_depend_is_depedency(rdep_bts, bts))
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continue;
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LOGP(DLINP, LOGL_NOTICE, "Dropping BTS(%u) due BTS(%u).\n",
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rdep_bts->nr, bts->nr);
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ipaccess_drop_oml(rdep_bts);
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}
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}
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/* This function is called once the OML/RSL link becomes up. */
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static struct e1inp_sign_link *
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ipaccess_sign_link_up(void *unit_data, struct e1inp_line *line,
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enum e1inp_sign_type type)
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{
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struct gsm_bts *bts;
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struct ipaccess_unit *dev = unit_data;
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struct e1inp_sign_link *sign_link = NULL;
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bts = find_bts_by_unitid(bsc_gsmnet, dev->site_id, dev->bts_id);
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if (!bts) {
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LOGP(DLINP, LOGL_ERROR, "Unable to find BTS configuration for "
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" %u/%u/%u, disconnecting\n", dev->site_id,
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dev->bts_id, dev->trx_id);
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return NULL;
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}
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DEBUGP(DLINP, "Identified BTS %u/%u/%u\n",
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dev->site_id, dev->bts_id, dev->trx_id);
|
|
|
|
switch(type) {
|
|
case E1INP_SIGN_OML:
|
|
/* remove old OML signal link for this BTS. */
|
|
ipaccess_drop_oml(bts);
|
|
|
|
if (!bts_depend_check(bts)) {
|
|
LOGP(DLINP, LOGL_NOTICE,
|
|
"Dependency not full-filled for %u/%u/%u\n",
|
|
dev->site_id, dev->bts_id, dev->trx_id);
|
|
return NULL;
|
|
}
|
|
|
|
/* create new OML link. */
|
|
sign_link = bts->oml_link =
|
|
e1inp_sign_link_create(&line->ts[E1INP_SIGN_OML - 1],
|
|
E1INP_SIGN_OML, bts->c0,
|
|
bts->oml_tei, 0);
|
|
break;
|
|
case E1INP_SIGN_RSL: {
|
|
struct e1inp_ts *ts;
|
|
struct gsm_bts_trx *trx = gsm_bts_trx_num(bts, dev->trx_id);
|
|
|
|
/* no OML link set yet? give up. */
|
|
if (!bts->oml_link || !trx)
|
|
return NULL;
|
|
|
|
/* remove old RSL link for this TRX. */
|
|
ipaccess_drop_rsl(trx);
|
|
|
|
/* set new RSL link for this TRX. */
|
|
line = bts->oml_link->ts->line;
|
|
ts = &line->ts[E1INP_SIGN_RSL + dev->trx_id - 1];
|
|
e1inp_ts_config_sign(ts, line);
|
|
sign_link = trx->rsl_link =
|
|
e1inp_sign_link_create(ts, E1INP_SIGN_RSL,
|
|
trx, trx->rsl_tei, 0);
|
|
trx->rsl_link->ts->sign.delay = 0;
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
return sign_link;
|
|
}
|
|
|
|
static void ipaccess_sign_link_down(struct e1inp_line *line)
|
|
{
|
|
/* No matter what link went down, we close both signal links. */
|
|
struct e1inp_ts *ts = &line->ts[E1INP_SIGN_OML-1];
|
|
struct e1inp_sign_link *link;
|
|
|
|
llist_for_each_entry(link, &ts->sign.sign_links, list) {
|
|
struct gsm_bts *bts = link->trx->bts;
|
|
|
|
ipaccess_drop_oml(bts);
|
|
/* Yes, we only use the first element of the list. */
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* This function is called if we receive one OML/RSL message. */
|
|
static int ipaccess_sign_link(struct msgb *msg)
|
|
{
|
|
int ret = 0;
|
|
struct e1inp_sign_link *link = msg->dst;
|
|
struct e1inp_ts *e1i_ts = link->ts;
|
|
|
|
switch (link->type) {
|
|
case E1INP_SIGN_RSL:
|
|
if (!(link->trx->bts->ip_access.flags &
|
|
(RSL_UP << link->trx->nr))) {
|
|
e1inp_event(e1i_ts, S_L_INP_TEI_UP,
|
|
link->tei, link->sapi);
|
|
link->trx->bts->ip_access.flags |=
|
|
(RSL_UP << link->trx->nr);
|
|
}
|
|
ret = abis_rsl_rcvmsg(msg);
|
|
break;
|
|
case E1INP_SIGN_OML:
|
|
if (!(link->trx->bts->ip_access.flags & OML_UP)) {
|
|
e1inp_event(e1i_ts, S_L_INP_TEI_UP,
|
|
link->tei, link->sapi);
|
|
link->trx->bts->ip_access.flags |= OML_UP;
|
|
}
|
|
ret = abis_nm_rcvmsg(msg);
|
|
break;
|
|
default:
|
|
LOGP(DLINP, LOGL_ERROR, "Unknown signal link type %d\n",
|
|
link->type);
|
|
msgb_free(msg);
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* not static, ipaccess-config needs it. */
|
|
struct e1inp_line_ops ipaccess_e1inp_line_ops = {
|
|
.cfg = {
|
|
.ipa = {
|
|
.addr = "0.0.0.0",
|
|
.role = E1INP_LINE_R_BSC,
|
|
},
|
|
},
|
|
.sign_link_up = ipaccess_sign_link_up,
|
|
.sign_link_down = ipaccess_sign_link_down,
|
|
.sign_link = ipaccess_sign_link,
|
|
};
|
|
|
|
static void bts_model_nanobts_e1line_bind_ops(struct e1inp_line *line)
|
|
{
|
|
e1inp_line_bind_ops(line, &ipaccess_e1inp_line_ops);
|
|
}
|