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