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#pragma once
#include <osmocom/core/write_queue.h>
#include <osmocom/core/timer.h>
#define MSGB_CB_MGCP_TRANS_ID 0
/* Struct that holds one endpoint name */
struct reset_ep {
struct llist_head list;
char name[MGCP_ENDPOINT_MAXLEN];
};
struct mgcp_client {
struct mgcp_client_conf actual;
struct osmo_wqueue wq;
mgcp_trans_id_t next_trans_id;
struct llist_head responses_pending;
struct mgcp_client_pool_member *pool_member;
struct osmo_timer_list keepalive_tx_timer;
struct osmo_timer_list keepalive_rx_timer;
bool conn_up;
};
struct mgcp_response_head {
int response_code;
mgcp_trans_id_t trans_id;
char comment[MGCP_COMMENT_MAXLEN];
char conn_id[MGCP_CONN_ID_MAXLEN];
char endpoint[MGCP_ENDPOINT_MAXLEN];
bool x_osmo_osmux_use;
uint8_t x_osmo_osmux_cid;
};
struct mgcp_response {
char *body;
struct mgcp_response_head head;
uint16_t audio_port;
char audio_ip[INET6_ADDRSTRLEN];
unsigned int ptime;
enum mgcp_codecs codecs[MGCP_MAX_CODECS];
unsigned int codecs_len;
struct ptmap ptmap[MGCP_MAX_CODECS];
unsigned int ptmap_len;
};
/* Invoked when an MGCP response is received or sending failed. When the
* response is passed as NULL, this indicates failure during transmission. */
typedef void (*mgcp_response_cb_t)(struct mgcp_response *response, void *priv);
struct mgcp_response_pending {
struct llist_head entry;
mgcp_trans_id_t trans_id;
mgcp_response_cb_t response_cb;
void *priv;
};
int mgcp_client_rx(struct mgcp_client *mgcp, struct msgb *msg);
struct mgcp_response_pending * mgcp_client_pending_add(
struct mgcp_client *mgcp,
mgcp_trans_id_t trans_id,
mgcp_response_cb_t response_cb,
void *priv);
#define MGCP_MSG_PRESENCE_ENDPOINT 0x0001
#define MGCP_MSG_PRESENCE_CALL_ID 0x0002
#define MGCP_MSG_PRESENCE_CONN_ID 0x0004
#define MGCP_MSG_PRESENCE_AUDIO_IP 0x0008
#define MGCP_MSG_PRESENCE_AUDIO_PORT 0x0010
#define MGCP_MSG_PRESENCE_CONN_MODE 0x0020
#define MGCP_MSG_PRESENCE_X_OSMO_OSMUX_CID 0x4000
#define MGCP_MSG_PRESENCE_X_OSMO_IGN 0x8000
struct mgcp_msg {
enum mgcp_verb verb;
/* See MGCP_MSG_PRESENCE_* constants */
uint32_t presence;
char endpoint[MGCP_ENDPOINT_MAXLEN];
unsigned int call_id;
char *conn_id;
uint16_t audio_port;
char *audio_ip;
enum mgcp_connection_mode conn_mode;
unsigned int ptime;
enum mgcp_codecs codecs[MGCP_MAX_CODECS];
unsigned int codecs_len;
struct ptmap ptmap[MGCP_MAX_CODECS];
unsigned int ptmap_len;
uint32_t x_osmo_ign;
bool x_osmo_osmux_use;
int x_osmo_osmux_cid; /* -1 is wildcard */
bool param_present;
struct mgcp_codec_param param;
};
int mgcp_response_parse_params(struct mgcp_response *r);
int mgcp_client_tx(struct mgcp_client *mgcp, struct msgb *msg,
mgcp_response_cb_t response_cb, void *priv);
int mgcp_client_cancel(struct mgcp_client *mgcp, mgcp_trans_id_t trans_id);
struct msgb *mgcp_msg_gen(struct mgcp_client *mgcp, struct mgcp_msg *mgcp_msg);
mgcp_trans_id_t mgcp_msg_trans_id(struct msgb *msg);
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