| /* A Media Gateway Control Protocol Media Gateway: RFC 3435 */ |
| /* IuUP CN node, minimal implementation */ |
| |
| /* _____IuUP_CN_____ |
| * | | |
| * UE <--> RNC --PDU-> osmo_iuup_cn_rx_pdu() -+-> ---+-> rx_payload() |
| * | | | |
| * | <-PDU-- tx_msg() <-------------+-- <-+--- osmo_iuup_cn_tx_payload() |
| * | | |
| * ----------------- |
| */ |
| |
| #pragma once |
| |
| struct osmo_iuup_cn; |
| struct msgb; |
| |
| typedef int (*osmo_iuup_data_cb_t)(struct msgb *msg, void *node_priv); |
| |
| struct osmo_iuup_cn_cfg { |
| void *node_priv; |
| |
| /* When the IuUP peer sent a voice packet, the clean RTP without the IuUP header is fed to this |
| * callback. */ |
| osmo_iuup_data_cb_t rx_payload; |
| |
| /* IuUP handler requests that a PDU shall be sent to the IuUP peer (e.g. the RNC). |
| * It is guaranteed that the msgb->dst pointer is preserved or copied from the msgb that |
| * originated the request. */ |
| osmo_iuup_data_cb_t tx_msg; |
| }; |
| |
| bool osmo_iuup_cn_is_iuup_init(struct msgb *msg); |
| |
| struct osmo_iuup_cn *osmo_iuup_cn_init(void *ctx, struct osmo_iuup_cn_cfg *cfg, |
| const char *name_fmt, ...); |
| void osmo_iuup_cn_free(struct osmo_iuup_cn *cn); |
| |
| int osmo_iuup_cn_tx_payload(struct osmo_iuup_cn *cn, struct msgb *payload); |
| |
| int osmo_iuup_cn_rx_pdu(struct osmo_iuup_cn *cn, struct msgb *pdu); |