149 lines
4.5 KiB
C
149 lines
4.5 KiB
C
/* main MSC management code... */
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/*
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* (C) 2010,2013 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2010 by On-Waves
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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 "config.h"
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#include <osmocom/core/tdef.h>
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#include <osmocom/msc/gsm_data.h>
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#include <osmocom/msc/vlr.h>
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#include <osmocom/msc/gsup_client_mux.h>
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#include <osmocom/msc/gsm_04_11_gsup.h>
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#include <osmocom/msc/gsm_09_11.h>
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/* TODO: would be great to have all timer declarations in one place */
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#include <osmocom/msc/ran_infra.h>
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#include <osmocom/msc/sccp_ran.h>
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#include <osmocom/msc/call_leg.h>
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struct osmo_tdef mncc_tdefs[] = {
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{}
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};
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struct osmo_tdef_group msc_tdef_group[] = {
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{ .name = "vlr", .tdefs = msc_tdefs_vlr, .desc = "VLR (Visitors Location Register)" },
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{ .name = "mgw", .tdefs = g_mgw_tdefs, .desc = "MGW (Media Gateway) interface" },
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{ .name = "mncc", .tdefs = mncc_tdefs, .desc = "MNCC (Mobile Network Call Control) interface" },
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{ .name = "sccp", .tdefs = g_sccp_tdefs, .desc = "SCCP (Signalling Connection Control Part)" },
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{ .name = "geran", .tdefs = msc_tdefs_geran, .desc = "GERAN (GSM EDGE Radio Access Network)" },
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{ .name = "utran", .tdefs = msc_tdefs_utran, .desc = "UTRAN (UMTS Terrestrial Radio Access Network)" },
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{ .name = "sgs", .tdefs = msc_tdefs_sgs, .desc = "SGs interface towards MME" },
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{ /* terminator */ }
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};
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#include <osmocom/core/stat_item.h>
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struct gsm_network *gsm_network_init(void *ctx, mncc_recv_cb_t mncc_recv)
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{
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struct gsm_network *net;
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net = talloc_zero(ctx, struct gsm_network);
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if (!net)
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return NULL;
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net->sms_db_file_path = talloc_strdup(net, SMS_DEFAULT_DB_FILE_PATH);
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net->plmn = (struct osmo_plmn_id){ .mcc=1, .mnc=1 };
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/* Permit a compile-time default of A5/3 and A5/1 */
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net->a5_encryption_mask = (1 << 3) | (1 << 1);
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/* Permit a compile-time default of UEA2 and UEA1 */
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net->uea_encryption_mask = (1 << 2) | (1 << 1);
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net->mncc_guard_timeout = 180;
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net->ncss_guard_timeout = 30;
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INIT_LLIST_HEAD(&net->trans_list);
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INIT_LLIST_HEAD(&net->upqueue);
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INIT_LLIST_HEAD(&net->neighbor_ident_list);
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/* init statistics */
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net->msc_ctrs = rate_ctr_group_alloc(net, &msc_ctrg_desc, 0);
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if (!net->msc_ctrs) {
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talloc_free(net);
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return NULL;
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}
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net->statg = osmo_stat_item_group_alloc(net, &msc_statg_desc, 0);
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if (!net->statg) {
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rate_ctr_group_free(net->msc_ctrs);
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talloc_free(net);
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return NULL;
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}
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net->mncc_tdefs = mncc_tdefs;
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net->mncc_recv = mncc_recv;
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return net;
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}
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void gsm_network_set_mncc_sock_path(struct gsm_network *net, const char *mncc_sock_path)
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{
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if (net->mncc_sock_path)
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talloc_free(net->mncc_sock_path);
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net->mncc_sock_path = mncc_sock_path ? talloc_strdup(net, mncc_sock_path) : NULL;
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}
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/* Allocate net->vlr so that the VTY may configure the VLR's data structures */
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int msc_vlr_alloc(struct gsm_network *net)
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{
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net->vlr = vlr_alloc(net, &msc_vlr_ops);
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if (!net->vlr)
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return -ENOMEM;
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net->vlr->user_ctx = net;
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return 0;
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}
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/* Launch the VLR, i.e. its GSUP connection */
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int msc_vlr_start(struct gsm_network *net)
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{
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OSMO_ASSERT(net->vlr);
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OSMO_ASSERT(net->gcm);
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return vlr_start(net->vlr, net->gcm);
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}
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int msc_gsup_client_start(struct gsm_network *net)
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{
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struct ipaccess_unit *ipa_dev;
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net->gcm = gsup_client_mux_alloc(net);
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OSMO_ASSERT(net->gcm);
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ipa_dev = talloc_zero(net->gcm, struct ipaccess_unit);
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ipa_dev->unit_name = "MSC";
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ipa_dev->serno = net->msc_ipa_name; /* NULL unless configured via VTY */
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ipa_dev->swversion = PACKAGE_NAME "-" PACKAGE_VERSION;
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*net->gcm = (struct gsup_client_mux){
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.rx_cb = {
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/* vlr.c sets up its own cb and data */
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/* MSC-A and MSC-B set up their own cb and data */
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[OSMO_GSUP_MESSAGE_CLASS_SMS] = { .func = gsm411_gsup_rx, .data = net },
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[OSMO_GSUP_MESSAGE_CLASS_USSD] = { .func = gsm0911_gsup_rx, .data = net },
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},
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};
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return gsup_client_mux_start(net->gcm, net->gsup_server_addr_str, net->gsup_server_port, ipa_dev);
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}
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