cellular-infrastructure
/
osmo-msc
mirror of https://gerrit.osmocom.org/osmo-msc
9
0
Fork 0
Code Issues Releases Wiki Activity
osmo-msc/openbsc/src/libbsc/bts_ipaccess_nanobts.c

521 lines
15 KiB
C
Raw Blame History

/* ip.access nanoBTS specific code */
/* (C) 2009-2010 by Harald Welte <laforge@gnumonks.org>
*
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <arpa/inet.h>
#include <osmocom/gsm/tlv.h>
#include <openbsc/gsm_data.h>
#include <openbsc/signal.h>
#include <openbsc/abis_nm.h>
#include <osmocom/abis/e1_input.h>
#include <osmocom/gsm/tlv.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/talloc.h>
#include <openbsc/gsm_data.h>
#include <openbsc/abis_nm.h>
#include <openbsc/abis_rsl.h>
#include <openbsc/debug.h>
#include <osmocom/abis/subchan_demux.h>
#include <osmocom/gsm/ipa.h>
#include <osmocom/abis/ipaccess.h>
#include <osmocom/core/logging.h>
#include <openbsc/ipaccess.h>
#include <openbsc/bts_ipaccess_nanobts_omlattr.h>
extern struct gsm_network *bsc_gsmnet;
static int bts_model_nanobts_start(struct gsm_network *net);
static void bts_model_nanobts_e1line_bind_ops(struct e1inp_line *line);
struct gsm_bts_model bts_model_nanobts = {
.type = GSM_BTS_TYPE_NANOBTS,
.name = "nanobts",
.start = bts_model_nanobts_start,
.oml_rcvmsg = &abis_nm_rcvmsg,
.e1line_bind_ops = bts_model_nanobts_e1line_bind_ops,
.nm_att_tlvdef = {
.def = {
/* ip.access specifics */
[NM_ATT_IPACC_DST_IP] = { TLV_TYPE_FIXED, 4 },
[NM_ATT_IPACC_DST_IP_PORT] = { TLV_TYPE_FIXED, 2 },
[NM_ATT_IPACC_STREAM_ID] = { TLV_TYPE_TV, },
[NM_ATT_IPACC_SEC_OML_CFG] = { TLV_TYPE_FIXED, 6 },
[NM_ATT_IPACC_IP_IF_CFG] = { TLV_TYPE_FIXED, 8 },
[NM_ATT_IPACC_IP_GW_CFG] = { TLV_TYPE_FIXED, 12 },
[NM_ATT_IPACC_IN_SERV_TIME] = { TLV_TYPE_FIXED, 4 },
[NM_ATT_IPACC_LOCATION] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_PAGING_CFG] = { TLV_TYPE_FIXED, 2 },
[NM_ATT_IPACC_UNIT_ID] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_UNIT_NAME] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_SNMP_CFG] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_PRIM_OML_CFG_LIST] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_NV_FLAGS] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_FREQ_CTRL] = { TLV_TYPE_FIXED, 2 },
[NM_ATT_IPACC_PRIM_OML_FB_TOUT] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_CUR_SW_CFG] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_TIMING_BUS] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_CGI] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_RAC] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_OBJ_VERSION] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_GPRS_PAGING_CFG]= { TLV_TYPE_TL16V },
[NM_ATT_IPACC_NSEI] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_BVCI] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_NSVCI] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_NS_CFG] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_BSSGP_CFG] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_NS_LINK_CFG] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_RLC_CFG] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_ALM_THRESH_LIST]= { TLV_TYPE_TL16V },
[NM_ATT_IPACC_MONIT_VAL_LIST] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_TIB_CONTROL] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_SUPP_FEATURES] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_CODING_SCHEMES] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_RLC_CFG_2] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_HEARTB_TOUT] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_UPTIME] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_RLC_CFG_3] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_SSL_CFG] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_SEC_POSSIBLE] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_IML_SSL_STATE] = { TLV_TYPE_TL16V },
[NM_ATT_IPACC_REVOC_DATE] = { TLV_TYPE_TL16V },
},
},
};
/* Callback function to be called whenever we get a GSM 12.21 state change event */
static int nm_statechg_event(int evt, struct nm_statechg_signal_data *nsd)
{
uint8_t obj_class = nsd->obj_class;
void *obj = nsd->obj;
struct gsm_nm_state *new_state = nsd->new_state;
struct gsm_bts *bts;
struct gsm_bts_trx *trx;
struct gsm_bts_trx_ts *ts;
struct gsm_bts_gprs_nsvc *nsvc;
struct msgb *msgb;
if (!is_ipaccess_bts(nsd->bts))
return 0;
/* This event-driven BTS setup is currently only required on nanoBTS */
/* S_NM_STATECHG_ADM is called after we call chg_adm_state() and would create
* endless loop */
if (evt != S_NM_STATECHG_OPER)
return 0;
switch (obj_class) {
case NM_OC_SITE_MANAGER:
bts = container_of(obj, struct gsm_bts, site_mgr);
if ((new_state->operational == NM_OPSTATE_ENABLED &&
new_state->availability == NM_AVSTATE_OK) ||
(new_state->operational == NM_OPSTATE_DISABLED &&
new_state->availability == NM_AVSTATE_OFF_LINE))
abis_nm_opstart(bts, obj_class, 0xff, 0xff, 0xff);
break;
case NM_OC_BTS:
bts = obj;
if (new_state->availability == NM_AVSTATE_DEPENDENCY) {
msgb = nanobts_attr_bts_get(bts);
abis_nm_set_bts_attr(bts, msgb->data, msgb->len);
msgb_free(msgb);
abis_nm_chg_adm_state(bts, obj_class,
bts->bts_nr, 0xff, 0xff,
NM_STATE_UNLOCKED);
abis_nm_opstart(bts, obj_class,
bts->bts_nr, 0xff, 0xff);
}
break;
case NM_OC_CHANNEL:
ts = obj;
trx = ts->trx;
if (new_state->operational == NM_OPSTATE_DISABLED &&
new_state->availability == NM_AVSTATE_DEPENDENCY) {
enum abis_nm_chan_comb ccomb =
abis_nm_chcomb4pchan(ts->pchan);
if (abis_nm_set_channel_attr(ts, ccomb) == -EINVAL) {
ipaccess_drop_oml(trx->bts);
return -1;
}
abis_nm_chg_adm_state(trx->bts, obj_class,
trx->bts->bts_nr, trx->nr, ts->nr,
NM_STATE_UNLOCKED);
abis_nm_opstart(trx->bts, obj_class,
trx->bts->bts_nr, trx->nr, ts->nr);
}
if (new_state->operational == NM_OPSTATE_ENABLED
&& new_state->availability == NM_AVSTATE_OK)
dyn_ts_init(ts);
break;
case NM_OC_RADIO_CARRIER:
trx = obj;
if (new_state->operational == NM_OPSTATE_DISABLED &&
new_state->availability == NM_AVSTATE_OK)
abis_nm_opstart(trx->bts, obj_class, trx->bts->bts_nr,
trx->nr, 0xff);
break;
case NM_OC_GPRS_NSE:
bts = container_of(obj, struct gsm_bts, gprs.nse);
if (bts->gprs.mode == BTS_GPRS_NONE)
break;
if (new_state->availability == NM_AVSTATE_DEPENDENCY) {
msgb = nanobts_attr_nse_get(bts);
abis_nm_ipaccess_set_attr(bts, obj_class, bts->bts_nr,
0xff, 0xff, msgb->data,
msgb->len);
msgb_free(msgb);
abis_nm_opstart(bts, obj_class, bts->bts_nr,
0xff, 0xff);
}
break;
case NM_OC_GPRS_CELL:
bts = container_of(obj, struct gsm_bts, gprs.cell);
if (bts->gprs.mode == BTS_GPRS_NONE)
break;
if (new_state->availability == NM_AVSTATE_DEPENDENCY) {
msgb = nanobts_attr_cell_get(bts);
abis_nm_ipaccess_set_attr(bts, obj_class, bts->bts_nr,
0, 0xff, msgb->data,
msgb->len);
msgb_free(msgb);
abis_nm_opstart(bts, obj_class, bts->bts_nr,
0, 0xff);
abis_nm_chg_adm_state(bts, obj_class, bts->bts_nr,
0, 0xff, NM_STATE_UNLOCKED);
abis_nm_chg_adm_state(bts, NM_OC_GPRS_NSE, bts->bts_nr,
0xff, 0xff, NM_STATE_UNLOCKED);
}
break;
case NM_OC_GPRS_NSVC:
nsvc = obj;
bts = nsvc->bts;
if (bts->gprs.mode == BTS_GPRS_NONE)
break;
/* We skip NSVC1 since we only use NSVC0 */
if (nsvc->id == 1)
break;
if ((new_state->availability == NM_AVSTATE_OFF_LINE) ||
(new_state->availability == NM_AVSTATE_DEPENDENCY)) {
msgb = nanobts_attr_nscv_get(bts);
abis_nm_ipaccess_set_attr(bts, obj_class, bts->bts_nr,
nsvc->id, 0xff,
msgb->data, msgb->len);
msgb_free(msgb);
abis_nm_opstart(bts, obj_class, bts->bts_nr,
nsvc->id, 0xff);
abis_nm_chg_adm_state(bts, obj_class, bts->bts_nr,
nsvc->id, 0xff,
NM_STATE_UNLOCKED);
}
default:
break;
}
return 0;
}
/* Callback function to be called every time we receive a 12.21 SW activated report */
static int sw_activ_rep(struct msgb *mb)
{
struct abis_om_fom_hdr *foh = msgb_l3(mb);
struct e1inp_sign_link *sign_link = mb->dst;
struct gsm_bts *bts = sign_link->trx->bts;
struct gsm_bts_trx *trx = gsm_bts_trx_num(bts, foh->obj_inst.trx_nr);
if (!trx)
return -EINVAL;
if (!is_ipaccess_bts(trx->bts))
return 0;
switch (foh->obj_class) {
case NM_OC_BASEB_TRANSC:
abis_nm_chg_adm_state(trx->bts, foh->obj_class,
trx->bts->bts_nr, trx->nr, 0xff,
NM_STATE_UNLOCKED);
abis_nm_opstart(trx->bts, foh->obj_class,
trx->bts->bts_nr, trx->nr, 0xff);
/* TRX software is active, tell it to initiate RSL Link */
abis_nm_ipaccess_rsl_connect(trx, trx->bts->ip_access.rsl_ip,
3003, trx->rsl_tei);
break;
case NM_OC_RADIO_CARRIER: {
/*
* Locking the radio carrier will make it go
* offline again and we would come here. The
* framework should determine that there was
* no change and avoid recursion.
*
* This code is here to make sure that on start
* a TRX remains locked.
*/
int rc_state = trx->mo.nm_state.administrative;
/* Patch ARFCN into radio attribute */
struct msgb *msgb = nanobts_attr_radio_get(trx->bts, trx);
abis_nm_set_radio_attr(trx, msgb->data, msgb->len);
msgb_free(msgb);
abis_nm_chg_adm_state(trx->bts, foh->obj_class,
trx->bts->bts_nr, trx->nr, 0xff,
rc_state);
abis_nm_opstart(trx->bts, foh->obj_class, trx->bts->bts_nr,
trx->nr, 0xff);
break;
}
}
return 0;
}
/* Callback function to be called every time we receive a signal from NM */
static int bts_ipa_nm_sig_cb(unsigned int subsys, unsigned int signal,
void *handler_data, void *signal_data)
{
if (subsys != SS_NM)
return 0;
switch (signal) {
case S_NM_SW_ACTIV_REP:
return sw_activ_rep(signal_data);
case S_NM_STATECHG_OPER:
case S_NM_STATECHG_ADM:
return nm_statechg_event(signal, signal_data);
default:
break;
}
return 0;
}
static int bts_model_nanobts_start(struct gsm_network *net)
{
osmo_signal_unregister_handler(SS_NM, bts_ipa_nm_sig_cb, NULL);
osmo_signal_register_handler(SS_NM, bts_ipa_nm_sig_cb, NULL);
return 0;
}
int bts_model_nanobts_init(void)
{
bts_model_nanobts.features.data = &bts_model_nanobts._features_data[0];
bts_model_nanobts.features.data_len =
sizeof(bts_model_nanobts._features_data);
gsm_btsmodel_set_feature(&bts_model_nanobts, BTS_FEAT_GPRS);
gsm_btsmodel_set_feature(&bts_model_nanobts, BTS_FEAT_EGPRS);
gsm_btsmodel_set_feature(&bts_model_nanobts, BTS_FEAT_MULTI_TSC);
return gsm_bts_model_register(&bts_model_nanobts);
}
#define OML_UP 0x0001
#define RSL_UP 0x0002
static struct gsm_bts *
find_bts_by_unitid(struct gsm_network *net, uint16_t site_id, uint16_t bts_id)
{
struct gsm_bts *bts;
llist_for_each_entry(bts, &net->bts_list, list) {
if (!is_ipaccess_bts(bts))
continue;
if (bts->ip_access.site_id == site_id &&
bts->ip_access.bts_id == bts_id)
return bts;
}
return NULL;
}
/* These are exported because they are used by the VTY interface. */
void ipaccess_drop_rsl(struct gsm_bts_trx *trx)
{
if (!trx->rsl_link)
return;
e1inp_sign_link_destroy(trx->rsl_link);
trx->rsl_link = NULL;
}
void ipaccess_drop_oml(struct gsm_bts *bts)
{
struct gsm_bts *rdep_bts;
struct gsm_bts_trx *trx;
if (!bts->oml_link)
return;
e1inp_sign_link_destroy(bts->oml_link);
bts->oml_link = NULL;
/* we have issues reconnecting RSL, drop everything. */
llist_for_each_entry(trx, &bts->trx_list, list)
ipaccess_drop_rsl(trx);
bts->ip_access.flags = 0;
/*
* Go through the list and see if we are the depndency of a BTS
* and then drop the BTS. This can lead to some recursion but it
* should be fine in userspace.
* The oml_link is serving as recursion anchor for us and
* it is set to NULL some lines above.
*/
llist_for_each_entry(rdep_bts, &bts->network->bts_list, list) {
if (!bts_depend_is_depedency(rdep_bts, bts))
continue;
LOGP(DLINP, LOGL_NOTICE, "Dropping BTS(%u) due BTS(%u).\n",
rdep_bts->nr, bts->nr);
ipaccess_drop_oml(rdep_bts);
}
}
/* This function is called once the OML/RSL link becomes up. */
static struct e1inp_sign_link *
ipaccess_sign_link_up(void *unit_data, struct e1inp_line *line,
enum e1inp_sign_type type)
{
struct gsm_bts *bts;
struct ipaccess_unit *dev = unit_data;
struct e1inp_sign_link *sign_link = NULL;
bts = find_bts_by_unitid(bsc_gsmnet, dev->site_id, dev->bts_id);
if (!bts) {
LOGP(DLINP, LOGL_ERROR, "Unable to find BTS configuration for "
" %u/%u/%u, disconnecting\n", dev->site_id,
dev->bts_id, dev->trx_id);
return NULL;
}
DEBUGP(DLINP, "Identified BTS %u/%u/%u\n",
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);
}
View Git Blame Copy Permalink