From 98a3877e979c9e901a7adc6946904a5d535cb93f Mon Sep 17 00:00:00 2001 From: Holger Hans Peter Freyther Date: Tue, 3 Aug 2010 02:27:21 +0800 Subject: mgcp: Implement the "loopback" mode for a connection endpoint. --- openbsc/include/openbsc/mgcp_internal.h | 9 +++++++++ openbsc/src/mgcp/mgcp_network.c | 4 ++++ openbsc/src/mgcp/mgcp_protocol.c | 9 ++------- 3 files changed, 15 insertions(+), 7 deletions(-) diff --git a/openbsc/include/openbsc/mgcp_internal.h b/openbsc/include/openbsc/mgcp_internal.h index 918ba4b2f..a17dc9e45 100644 --- a/openbsc/include/openbsc/mgcp_internal.h +++ b/openbsc/include/openbsc/mgcp_internal.h @@ -28,6 +28,15 @@ #define CI_UNUSED 0 +enum mgcp_connection_mode { + MGCP_CONN_NONE = 0, + MGCP_CONN_RECV_ONLY = 1, + MGCP_CONN_SEND_ONLY = 2, + MGCP_CONN_RECV_SEND = MGCP_CONN_RECV_ONLY | MGCP_CONN_SEND_ONLY, + MGCP_CONN_LOOPBACK = 4, +}; + + struct mgcp_endpoint { int ci; char *callid; diff --git a/openbsc/src/mgcp/mgcp_network.c b/openbsc/src/mgcp/mgcp_network.c index cc1bf44f6..5923fea79 100644 --- a/openbsc/src/mgcp/mgcp_network.c +++ b/openbsc/src/mgcp/mgcp_network.c @@ -204,6 +204,10 @@ static int rtp_data_cb(struct bsc_fd *fd, unsigned int what) if (cfg->audio_loop) dest = !dest; + /* Loop based on the conn_mode, maybe undoing the above */ + if (endp->conn_mode == MGCP_CONN_LOOPBACK) + dest = !dest; + if (dest == DEST_NETWORK) { if (proto == PROTO_RTP) patch_and_count(&endp->bts_seq_no, &endp->bts_lost_no, diff --git a/openbsc/src/mgcp/mgcp_protocol.c b/openbsc/src/mgcp/mgcp_protocol.c index 8131277ac..d12d18280 100644 --- a/openbsc/src/mgcp/mgcp_protocol.c +++ b/openbsc/src/mgcp/mgcp_protocol.c @@ -38,13 +38,6 @@ #include #include -enum mgcp_connection_mode { - MGCP_CONN_NONE = 0, - MGCP_CONN_RECV_ONLY = 1, - MGCP_CONN_SEND_ONLY = 2, - MGCP_CONN_RECV_SEND = MGCP_CONN_RECV_ONLY | MGCP_CONN_SEND_ONLY, -}; - /** * Macro for tokenizing MGCP messages and SDP in one go. * @@ -364,6 +357,8 @@ static int parse_conn_mode(const char* msg, int *conn_mode) *conn_mode = MGCP_CONN_RECV_ONLY; else if (strcmp(msg, "sendrecv") == 0) *conn_mode = MGCP_CONN_RECV_SEND; + else if (strcmp(msg, "loopback") == 0) + *conn_mode = MGCP_CONN_LOOPBACK; else { LOGP(DMGCP, LOGL_ERROR, "Unknown connection mode: '%s'\n", msg); ret = -1; -- cgit v1.2.3