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90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
/* GPRS Subscriber Update Protocol client */
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/* (C) 2014 by Sysmocom s.f.m.c. GmbH
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* All Rights Reserved
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*
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* Author: Jacob Erlbeck
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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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#pragma once
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#include <osmocom/core/timer.h>
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#include <osmocom/gsm/oap_client.h>
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#include <osmocom/gsm/ipa.h>
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#include <osmocom/gsm/gsup.h>
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/* a loss of GSUP between MSC and HLR is considered quite serious, let's try to recover as quickly as
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* possible. Even one new connection attempt per second should be quite acceptable until the link is
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* re-established */
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#define OSMO_GSUP_CLIENT_RECONNECT_INTERVAL 1
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#define OSMO_GSUP_CLIENT_PING_INTERVAL 20
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struct msgb;
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struct ipa_client_conn;
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struct osmo_gsup_client;
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/* Expects message in msg->l2h */
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typedef int (*osmo_gsup_client_read_cb_t)(struct osmo_gsup_client *gsupc, struct msgb *msg);
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typedef bool (*osmo_gsup_client_up_down_cb_t)(struct osmo_gsup_client *gsupc, bool up);
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struct osmo_gsup_client {
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const char *unit_name; /* same as ipa_dev->unit_name, for backwards compat */
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struct ipa_client_conn *link;
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osmo_gsup_client_read_cb_t read_cb;
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void *data;
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struct osmo_oap_client_state oap_state;
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struct osmo_timer_list ping_timer;
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struct osmo_timer_list connect_timer;
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int is_connected;
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int got_ipa_pong;
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struct ipaccess_unit *ipa_dev; /* identification information sent to IPA server */
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osmo_gsup_client_up_down_cb_t up_down_cb;
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};
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struct osmo_gsup_client *osmo_gsup_client_create3(void *talloc_ctx,
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struct ipaccess_unit *ipa_dev,
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const char *ip_addr,
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unsigned int tcp_port,
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struct osmo_oap_client_config *oapc_config,
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osmo_gsup_client_read_cb_t read_cb,
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osmo_gsup_client_up_down_cb_t up_down_cb,
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void *data);
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struct osmo_gsup_client *osmo_gsup_client_create2(void *talloc_ctx,
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struct ipaccess_unit *ipa_dev,
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const char *ip_addr,
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unsigned int tcp_port,
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osmo_gsup_client_read_cb_t read_cb,
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struct osmo_oap_client_config *oapc_config);
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struct osmo_gsup_client *osmo_gsup_client_create(void *talloc_ctx,
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const char *unit_name,
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const char *ip_addr,
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unsigned int tcp_port,
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osmo_gsup_client_read_cb_t read_cb,
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struct osmo_oap_client_config *oapc_config);
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void osmo_gsup_client_destroy(struct osmo_gsup_client *gsupc);
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int osmo_gsup_client_send(struct osmo_gsup_client *gsupc, struct msgb *msg);
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int osmo_gsup_client_enc_send(struct osmo_gsup_client *gsupc,
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const struct osmo_gsup_message *gsup_msg);
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struct msgb *osmo_gsup_client_msgb_alloc(void);
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