123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
/* Osmocom CBC (Cell Broacast Centre) */
|
|
|
|
/* (C) 2019 by Harald Welte <laforge@gnumonks.org>
|
|
* All Rights Reserved
|
|
*
|
|
* SPDX-License-Identifier: AGPL-3.0+
|
|
*
|
|
* 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 <string.h>
|
|
#include <errno.h>
|
|
|
|
#include <osmocom/core/linuxlist.h>
|
|
#include <osmocom/core/talloc.h>
|
|
#include <osmocom/core/utils.h>
|
|
|
|
#include <osmocom/cbc/cbc_message.h>
|
|
#include <osmocom/cbc/cbc_peer.h>
|
|
#include <osmocom/cbc/cbsp_link.h>
|
|
#include <osmocom/cbc/sbcap_link.h>
|
|
|
|
const struct value_string cbc_peer_proto_name[] = {
|
|
{ CBC_PEER_PROTO_CBSP, "CBSP" },
|
|
{ CBC_PEER_PROTO_SABP, "SABP" },
|
|
{ CBC_PEER_PROTO_SBcAP, "SBc-AP" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/* create a new cbc_peer */
|
|
struct cbc_peer *cbc_peer_create(const char *name, enum cbc_peer_protocol proto)
|
|
{
|
|
struct cbc_peer *peer;
|
|
if (name && cbc_peer_by_name(name))
|
|
return NULL;
|
|
|
|
peer = talloc_zero(g_cbc, struct cbc_peer);
|
|
if (!peer)
|
|
return NULL;
|
|
|
|
peer->proto = proto;
|
|
peer->name = talloc_strdup(peer, name);
|
|
llist_add_tail(&peer->list, &g_cbc->peers);
|
|
|
|
return peer;
|
|
}
|
|
|
|
/* remove a cbc_peer */
|
|
void cbc_peer_remove(struct cbc_peer *peer)
|
|
{
|
|
struct cbc_message *cbcmsg;
|
|
|
|
/* close any existing peer link connection */
|
|
switch (peer->proto) {
|
|
case CBC_PEER_PROTO_CBSP:
|
|
if (peer->link.cbsp)
|
|
cbc_cbsp_link_close(peer->link.cbsp);
|
|
break;
|
|
case CBC_PEER_PROTO_SBcAP:
|
|
if (peer->link.sbcap)
|
|
cbc_sbcap_link_close(peer->link.sbcap);
|
|
break;
|
|
case CBC_PEER_PROTO_SABP:
|
|
default:
|
|
OSMO_ASSERT(0);
|
|
}
|
|
|
|
/* iterate over messages; remove peer from all message_peers */
|
|
llist_for_each_entry(cbcmsg, &g_cbc->messages, list) {
|
|
cbc_message_del_peer(cbcmsg, peer);
|
|
}
|
|
|
|
llist_del(&peer->list);
|
|
talloc_free(peer);
|
|
}
|
|
|
|
/* look-up of cbc_peer by name */
|
|
struct cbc_peer *cbc_peer_by_name(const char *name)
|
|
{
|
|
struct cbc_peer *peer;
|
|
|
|
llist_for_each_entry(peer, &g_cbc->peers, list) {
|
|
if (peer->name && !strcmp(name, peer->name))
|
|
return peer;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/* look-up of cbc_peer by tuple of (remote host, protocol) */
|
|
struct cbc_peer *cbc_peer_by_addr_proto(const char *remote_host, uint16_t remote_port,
|
|
enum cbc_peer_protocol proto)
|
|
{
|
|
struct cbc_peer *peer;
|
|
|
|
llist_for_each_entry(peer, &g_cbc->peers, list) {
|
|
unsigned int i;
|
|
for (i = 0; i < peer->num_remote_host; i++) {
|
|
if (peer->proto != proto)
|
|
continue;
|
|
if (!strcasecmp(remote_host, peer->remote_host[i])) {
|
|
if (peer->remote_port == -1)
|
|
return peer;
|
|
else if (remote_port == peer->remote_port)
|
|
return peer;
|
|
}
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|