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#pragma once
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/msgb.h>
#include <osmocom/abis/ipa.h>
#include <osmocom/abis/ipaccess.h>
#include <osmocom/gsm/gsup.h>
#include <osmocom/gsupclient/cni_peer_id.h>
#include <osmocom/gsupclient/gsup_req.h>
#ifndef OSMO_GSUP_MAX_CALLED_PARTY_BCD_LEN
#define OSMO_GSUP_MAX_CALLED_PARTY_BCD_LEN 43 /* TS 24.008 10.5.4.7 */
#endif
struct osmo_gsup_conn;
/* Expects message in msg->l2h */
typedef int (*osmo_gsup_read_cb_t)(struct osmo_gsup_conn *conn, struct msgb *msg);
struct osmo_gsup_server {
/* private data of the application/user */
void *priv;
/* list of osmo_gsup_conn */
struct llist_head clients;
struct ipa_server_link *link;
osmo_gsup_read_cb_t read_cb;
struct llist_head routes;
/* Proxy requests from this server's clients to remote GSUP servers. */
struct proxy *proxy;
};
/* a single connection to a given client (SGSN, MSC) */
struct osmo_gsup_conn {
struct llist_head list;
struct osmo_gsup_server *server;
struct ipa_server_conn *conn;
//struct oap_state oap_state;
struct tlv_parsed ccm;
unsigned int auc_3g_ind; /*!< IND index used for UMTS AKA SQN */
/* Set when Location Update is received: */
bool supports_cs; /* client supports OSMO_GSUP_CN_DOMAIN_CS */
bool supports_ps; /* client supports OSMO_GSUP_CN_DOMAIN_PS */
/* The IPA unit name received on this link. Routes with more unit names serviced by this link may exist in
* osmo_gsup_server->routes, but this is the name the immediate peer identified as in the IPA handshake. */
struct osmo_ipa_name peer_name;
};
struct msgb *osmo_gsup_msgb_alloc(const char *label);
struct osmo_gsup_req *osmo_gsup_conn_rx(struct osmo_gsup_conn *conn, struct msgb *msg);
int osmo_gsup_conn_send(struct osmo_gsup_conn *conn, struct msgb *msg);
int osmo_gsup_conn_ccm_get(const struct osmo_gsup_conn *clnt, uint8_t **addr,
uint8_t tag);
struct osmo_gsup_server *osmo_gsup_server_create(void *ctx,
const char *ip_addr,
uint16_t tcp_port,
osmo_gsup_read_cb_t read_cb,
void *priv);
void osmo_gsup_server_destroy(struct osmo_gsup_server *gsups);
int osmo_gsup_configure_wildcard_apn(struct osmo_gsup_message *gsup,
uint8_t *apn_buf, size_t apn_buf_size);
int osmo_gsup_create_insert_subscriber_data_msg(struct osmo_gsup_message *gsup, const char *imsi, const char *msisdn,
uint8_t *msisdn_enc, size_t msisdn_enc_size,
uint8_t *apn_buf, size_t apn_buf_size,
enum osmo_gsup_cn_domain cn_domain);
int osmo_gsup_forward_to_local_peer(struct osmo_gsup_server *server, const struct osmo_cni_peer_id *to_peer,
struct osmo_gsup_req *req, struct osmo_gsup_message *modified_gsup);
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