From ba6c93d3c4563032892e71e4c87b2152df3c74cb Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sat, 26 May 2018 22:56:59 +0200 Subject: Re-introduce support for IPA-encapsulated MGCP Old osmo-bsc-sccplite already supported this, but in the migration over to libosmo-sigtran and to real 3GPP AoIP, this functionality got lost. We now crate a UDP proxy socket. Any MGCP commands received via IPA from MSC (or rather: bsc_nat) are retransmitted to the MGW via UDP on this socket. Any responses back from the MGW received on the UDP socket are retransmitted back to MSC/bsc_nat as MGCP inside the IPA multiplex. Closes: OS#2536 Change-Id: I38ad8fa645c08900e0e1f1b4b96136bc6d96b3ab --- include/osmocom/bsc/osmo_bsc_sigtran.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/osmocom/bsc/osmo_bsc_sigtran.h') diff --git a/include/osmocom/bsc/osmo_bsc_sigtran.h b/include/osmocom/bsc/osmo_bsc_sigtran.h index bd8b06398..b934d51d3 100644 --- a/include/osmocom/bsc/osmo_bsc_sigtran.h +++ b/include/osmocom/bsc/osmo_bsc_sigtran.h @@ -44,3 +44,12 @@ void osmo_bsc_sigtran_tx_reset_ack(const struct bsc_msc_data *msc); /* receive + process a CTRL command from the piggy-back on the IPA/SCCPlite link */ int bsc_sccplite_rx_ctrl(struct osmo_ss7_asp *asp, struct msgb *msg); + +/* receive + process a MGCP message from the piggy-back on the IPA/SCCPlite link */ +int bsc_sccplite_rx_mgcp(struct osmo_ss7_asp *asp, struct msgb *msg); + +/* send a message via SCCPLite to given MSC */ +int bsc_sccplite_msc_send(struct bsc_msc_data *msc, struct msgb *msg); + +/* we received some data on the UDP proxy socket from the MGW. Pass it to MSC via IPA */ +int bsc_sccplite_mgcp_proxy_cb(struct osmo_fd *ofd, unsigned int what); -- cgit v1.2.3