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06da85ed3a
Some MGCP messages (CRCX, MDCX) return IP-Addresses. Make use of this information. Change-Id: I44b338b09de45e1675cedf9737fa72dde72e979a
119 lines
3.5 KiB
C
119 lines
3.5 KiB
C
#pragma once
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#include <stdint.h>
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#include <arpa/inet.h>
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#include <osmocom/mgcp_client/mgcp_common.h>
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#define MGCP_CLIENT_LOCAL_ADDR_DEFAULT "0.0.0.0"
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#define MGCP_CLIENT_LOCAL_PORT_DEFAULT 0
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#define MGCP_CLIENT_REMOTE_ADDR_DEFAULT "127.0.0.1"
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#define MGCP_CLIENT_REMOTE_PORT_DEFAULT 2427
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struct msgb;
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struct vty;
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struct mgcp_client;
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struct mgcp_client_conf {
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const char *local_addr;
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int local_port;
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const char *remote_addr;
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int remote_port;
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uint16_t first_endpoint;
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uint16_t last_endpoint;
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uint16_t bts_base;
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};
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typedef unsigned int mgcp_trans_id_t;
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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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const char *comment;
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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[INET_ADDRSTRLEN];
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};
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enum mgcp_verb {
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MGCP_VERB_CRCX,
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MGCP_VERB_MDCX,
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MGCP_VERB_DLCX,
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MGCP_VERB_AUEP,
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MGCP_VERB_RSIP,
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};
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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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/* See also RFC3435 section 3.2.1.3 */
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#define MGCP_ENDPOINT_MAXLEN (255*2+1+1)
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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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uint32_t 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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};
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void mgcp_client_conf_init(struct mgcp_client_conf *conf);
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void mgcp_client_vty_init(void *talloc_ctx, int node, struct mgcp_client_conf *conf);
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int mgcp_client_config_write(struct vty *vty, const char *indent);
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struct mgcp_client_conf *mgcp_client_conf_actual(struct mgcp_client *mgcp);
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struct mgcp_client *mgcp_client_init(void *ctx,
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struct mgcp_client_conf *conf);
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int mgcp_client_connect(struct mgcp_client *mgcp);
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const char *mgcp_client_remote_addr_str(struct mgcp_client *mgcp);
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uint16_t mgcp_client_remote_port(struct mgcp_client *mgcp);
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uint32_t mgcp_client_remote_addr_n(struct mgcp_client *mgcp);
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int mgcp_client_next_endpoint(struct mgcp_client *client);
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void mgcp_client_release_endpoint(uint16_t id, struct mgcp_client *client);
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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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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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enum mgcp_connection_mode;
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struct msgb *mgcp_msg_crcx(struct mgcp_client *mgcp,
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uint16_t rtp_endpoint, unsigned int call_id,
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enum mgcp_connection_mode mode)
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OSMO_DEPRECATED("Use mgcp_msg_gen() instead");
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struct msgb *mgcp_msg_mdcx(struct mgcp_client *mgcp,
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uint16_t rtp_endpoint, const char *rtp_conn_addr,
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uint16_t rtp_port, enum mgcp_connection_mode mode)
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OSMO_DEPRECATED("Use mgcp_msg_gen() instead");
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struct msgb *mgcp_msg_dlcx(struct mgcp_client *mgcp, uint16_t rtp_endpoint,
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unsigned int call_id)
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OSMO_DEPRECATED("Use mgcp_msg_gen() instead");
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struct msgb *mgcp_msg_gen(struct mgcp_client *mgcp, struct mgcp_msg *mgcp_msg);
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extern const struct value_string mgcp_client_connection_mode_strs[];
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static inline const char *mgcp_client_cmode_name(enum mgcp_connection_mode mode)
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{
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return get_value_string(mgcp_client_connection_mode_strs, mode);
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}
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