204 lines
4.7 KiB
C
204 lines
4.7 KiB
C
/* (C) 2015 by Daniel Willmann <dwillmann@sysmocom.de>
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* (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
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* Author: Pau Espin Pedrol <pespin@sysmocom.de>
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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/lienses/>.
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*
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*/
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#include "config.h"
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#include <errno.h>
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#include <osmocom/core/socket.h>
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#include <osmocom/core/talloc.h>
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#include <osmocom/netif/stream.h>
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#include <osmocom/netif/prim.h>
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#include <osmocom/trau/osmo_ortp.h>
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#include <osmocom/hnodeb/hnodeb.h>
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#include <osmocom/hnodeb/iuh.h>
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#include <osmocom/hnodeb/hnb_shutdown_fsm.h>
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#include <osmocom/hnodeb/hnb_prim.h>
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#include <osmocom/hnodeb/rtp.h>
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#include <osmocom/hnodeb/gtp.h>
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struct hnb *hnb_alloc(void *tall_ctx)
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{
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struct hnb *hnb;
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hnb = talloc_zero(tall_ctx, struct hnb);
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if (!hnb)
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return NULL;
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INIT_LLIST_HEAD(&hnb->ue_list);
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hnb->identity = talloc_strdup(hnb, "OsmoHNodeB");
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hnb->plmn = (struct osmo_plmn_id){
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.mcc = 1,
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.mnc = 1,
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};
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hnb->rtp.jitter_adaptive = false;
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hnb->rtp.port_range_start = 16384;
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hnb->rtp.port_range_end = 17407;
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hnb->rtp.port_range_next = hnb->rtp.port_range_start;
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hnb->rtp.ip_dscp = -1;
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hnb->rtp.priority = -1;
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hnb->gtp.cfg_local_addr = talloc_strdup(hnb, "0.0.0.0");
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osmo_wqueue_init(&hnb->gtp.wq1u, 1024);
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hnb->gtp.wq1u.bfd.data = hnb;
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hnb->gtp.wq1u.bfd.fd = -1;
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hnb->shutdown_fi = osmo_fsm_inst_alloc(&hnb_shutdown_fsm, hnb, hnb,
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LOGL_INFO, NULL);
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hnb_llsk_alloc(hnb);
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hnb_iuh_alloc(hnb);
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return hnb;
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}
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void hnb_free(struct hnb *hnb)
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{
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struct hnb_ue *ue, *ue_tmp;
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llist_for_each_entry_safe(ue, ue_tmp, &hnb->ue_list, list)
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hnb_ue_free(ue);
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if (hnb->shutdown_fi) {
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osmo_fsm_inst_free(hnb->shutdown_fi);
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hnb->shutdown_fi = NULL;
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}
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hnb_iuh_free(hnb);
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osmo_timer_del(&hnb->llsk_defer_configure_ind_timer);
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osmo_prim_srv_link_free(hnb->llsk_link);
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hnb->llsk_link = NULL;
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hnb_gtp_unbind(hnb);
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talloc_free(hnb);
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}
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struct hnb_ue *hnb_ue_alloc(struct hnb *hnb, uint32_t conn_id)
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{
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struct hnb_ue *ue;
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ue = talloc_zero(hnb, struct hnb_ue);
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if (!ue)
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return NULL;
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ue->hnb = hnb;
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ue->conn_id = conn_id;
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INIT_LLIST_HEAD(&ue->conn_cs.conn_list);
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INIT_LLIST_HEAD(&ue->conn_ps.conn_list);
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llist_add(&ue->list, &hnb->ue_list);
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return ue;
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}
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void hnb_ue_free(struct hnb_ue *ue)
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{
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hnb_ue_reset_chan(ue, true);
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hnb_ue_reset_chan(ue, false);
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llist_del(&ue->list);
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talloc_free(ue);
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}
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void hnb_ue_reset_chan(struct hnb_ue *ue, bool is_ps)
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{
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if (is_ps) {
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struct gtp_conn *conn, *conn_tmp;
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llist_for_each_entry_safe(conn, conn_tmp, &ue->conn_ps.conn_list, list)
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gtp_conn_free(conn);
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ue->conn_ps = (struct hnb_ue_ps_ctx){0};
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INIT_LLIST_HEAD(&ue->conn_ps.conn_list);
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} else {
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struct rtp_conn *conn, *conn_tmp;
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llist_for_each_entry_safe(conn, conn_tmp, &ue->conn_cs.conn_list, list)
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rtp_conn_free(conn);
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ue->conn_cs = (struct hnb_ue_cs_ctx){0};
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INIT_LLIST_HEAD(&ue->conn_cs.conn_list);
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}
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}
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struct hnb_ue *hnb_find_ue_by_id(const struct hnb *hnb, uint32_t conn_id)
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{
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struct hnb_ue *ue;
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llist_for_each_entry(ue, &hnb->ue_list, list) {
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if (ue->conn_id != conn_id)
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continue;
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return ue;
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}
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return NULL;
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}
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struct hnb_ue *hnb_find_ue_by_imsi(const struct hnb *hnb, char *imsi)
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{
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struct hnb_ue *ue;
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if (!imsi || imsi[0] == '\0')
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return NULL;
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llist_for_each_entry(ue, &hnb->ue_list, list) {
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if (ue->imsi[0] == '\0')
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continue;
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if (strncmp(&ue->imsi[0], imsi, ARRAY_SIZE(ue->imsi)) != 0)
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continue;
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return ue;
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}
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return NULL;
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}
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struct rtp_conn *hnb_find_rtp_conn_by_id(const struct hnb *hnb, uint32_t audio_conn_id)
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{
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struct hnb_ue *ue;
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llist_for_each_entry(ue, &hnb->ue_list, list) {
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struct rtp_conn *conn;
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if (!ue->conn_cs.active)
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continue;
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llist_for_each_entry(conn, &ue->conn_cs.conn_list, list) {
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if (conn->id == audio_conn_id)
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return conn;
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}
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}
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return NULL;
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}
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struct gtp_conn *hnb_find_gtp_conn_by_id(const struct hnb *hnb, uint32_t gtp_conn_id)
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{
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struct hnb_ue *ue;
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llist_for_each_entry(ue, &hnb->ue_list, list) {
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struct gtp_conn *conn;
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if (!ue->conn_ps.active)
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continue;
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llist_for_each_entry(conn, &ue->conn_ps.conn_list, list) {
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if (conn->id == gtp_conn_id)
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return conn;
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}
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}
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return NULL;
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}
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