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mgcp: Implement the "loopback" mode for a connection endpoint.

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This commit is contained in:
Holger Hans Peter Freyther
2010-08-03 02:27:21 +08:00
parent 00d1f0d7a9
commit c4fe5ac43a
3 changed files with 15 additions and 7 deletions
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9
openbsc/include/openbsc/mgcp_internal.h
View File

@@ -28,6 +28,15 @@
#define CI_UNUSED 0 #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 { struct mgcp_endpoint {
int ci; int ci;
char *callid; char *callid;

4
openbsc/src/mgcp/mgcp_network.c
View File

@@ -206,6 +206,10 @@ static int rtp_data_cb(struct bsc_fd *fd, unsigned int what)
if (cfg->audio_loop) if (cfg->audio_loop)
dest = !dest; 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 (dest == DEST_NETWORK) {
if (proto == PROTO_RTP) if (proto == PROTO_RTP)
patch_and_count(&endp->bts_seq_no, &endp->bts_lost_no, patch_and_count(&endp->bts_seq_no, &endp->bts_lost_no,

9
openbsc/src/mgcp/mgcp_protocol.c
View File

@@ -38,13 +38,6 @@
#include <openbsc/mgcp.h> #include <openbsc/mgcp.h>
#include <openbsc/mgcp_internal.h> #include <openbsc/mgcp_internal.h>
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. * 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; *conn_mode = MGCP_CONN_RECV_ONLY;
else if (strcmp(msg, "sendrecv") == 0) else if (strcmp(msg, "sendrecv") == 0)
*conn_mode = MGCP_CONN_RECV_SEND; *conn_mode = MGCP_CONN_RECV_SEND;
else if (strcmp(msg, "loopback") == 0)
*conn_mode = MGCP_CONN_LOOPBACK;
else { else {
LOGP(DMGCP, LOGL_ERROR, "Unknown connection mode: '%s'\n", msg); LOGP(DMGCP, LOGL_ERROR, "Unknown connection mode: '%s'\n", msg);
ret = -1; ret = -1;