105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
/* Messages on the Gb interface (A/Gb mode) */
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/* (C) 2009-2015 by Harald Welte <laforge@gnumonks.org>
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* (C) 2010 by On-Waves
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* (C) 2019 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
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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 <osmocom/core/rate_ctr.h>
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#include <osmocom/gprs/gprs_msgb.h>
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#include <osmocom/gprs/gprs_bssgp.h>
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#include <osmocom/gprs/gprs_ns2.h>
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#include <osmocom/gprs/gprs_bssgp_bss.h>
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#include <osmocom/sgsn/gprs_llc.h>
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#include "config.h"
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#include <osmocom/sgsn/gprs_sgsn.h>
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#include <osmocom/sgsn/debug.h>
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void gprs_ns_prim_status_cb(struct osmo_gprs_ns2_prim *nsp)
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{
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switch (nsp->u.status.cause) {
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case GPRS_NS2_AFF_CAUSE_SNS_CONFIGURED:
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LOGP(DGPRS, LOGL_NOTICE, "NS-E %d SNS configured.\n", nsp->nsei);
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break;
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case GPRS_NS2_AFF_CAUSE_RECOVERY:
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LOGP(DGPRS, LOGL_NOTICE, "NS-E %d became available\n", nsp->nsei);
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/* workaround for broken BSS which doesn't respond correct to BSSGP status message.
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* Sent a BSSGP Reset when a persistent NSVC comes up for the first time. */
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if (nsp->u.status.first && nsp->u.status.persistent) {
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struct bssgp_bvc_ctx bctx = {
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.nsei = nsp->nsei,
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};
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bssgp_tx_bvc_reset2(&bctx, BVCI_SIGNALLING, BSSGP_CAUSE_EQUIP_FAIL, false);
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}
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break;
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case GPRS_NS2_AFF_CAUSE_FAILURE:
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LOGP(DGPRS, LOGL_NOTICE, "NS-E %d became unavailable\n", nsp->nsei);
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break;
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default:
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LOGP(DGPRS, LOGL_NOTICE, "NS: %s Unknown prim %d from NS\n",
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get_value_string(osmo_prim_op_names, nsp->oph.operation), nsp->oph.primitive);
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break;
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}
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}
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/* call-back function for the NS protocol */
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int gprs_ns_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
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{
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struct osmo_gprs_ns2_prim *nsp;
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int rc = 0;
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if (oph->sap != SAP_NS)
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return 0;
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nsp = container_of(oph, struct osmo_gprs_ns2_prim, oph);
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if (oph->operation != PRIM_OP_INDICATION) {
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LOGP(DGPRS, LOGL_NOTICE, "NS: %s Unknown prim %d from NS\n",
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get_value_string(osmo_prim_op_names, oph->operation),
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oph->operation);
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return 0;
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}
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switch (oph->primitive) {
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case GPRS_NS2_PRIM_UNIT_DATA:
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/* hand the message into the BSSGP implementation */
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/* add required msg fields for Gb layer */
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msgb_bssgph(oph->msg) = oph->msg->l3h;
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msgb_bvci(oph->msg) = nsp->bvci;
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msgb_nsei(oph->msg) = nsp->nsei;
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rc = bssgp_rcvmsg(oph->msg);
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break;
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case GPRS_NS2_PRIM_STATUS:
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gprs_ns_prim_status_cb(nsp);
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break;
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default:
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LOGP(DGPRS, LOGL_NOTICE, "NS: %s Unknown prim %d from NS\n",
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get_value_string(osmo_prim_op_names, oph->operation), oph->primitive);
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break;
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}
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if (oph->msg)
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msgb_free(oph->msg);
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return rc;
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}
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