From c597a4eba134eec47dd21085f86e749a78261726 Mon Sep 17 00:00:00 2001
From: Holger Hans Peter Freyther <zecke@selfish.org>
Date: Tue, 3 Aug 2010 02:57:02 +0800
Subject: mgcp: Allow to change the receive (the loopback part) via the VTY

---
 openbsc/include/openbsc/mgcp_internal.h |  1 +
 openbsc/src/mgcp/mgcp_protocol.c        |  5 +++++
 openbsc/src/mgcp/mgcp_vty.c             | 29 +++++++++++++++++++++++++++++
 3 files changed, 35 insertions(+)

diff --git a/openbsc/include/openbsc/mgcp_internal.h b/openbsc/include/openbsc/mgcp_internal.h
index a17dc9e45..62161fdc9 100644
--- a/openbsc/include/openbsc/mgcp_internal.h
+++ b/openbsc/include/openbsc/mgcp_internal.h
@@ -42,6 +42,7 @@ struct mgcp_endpoint {
 	char *callid;
 	char *local_options;
 	int conn_mode;
+	int orig_mode;
 
 	int bts_payload_type;
 	int net_payload_type;
diff --git a/openbsc/src/mgcp/mgcp_protocol.c b/openbsc/src/mgcp/mgcp_protocol.c
index d12d18280..5883c155c 100644
--- a/openbsc/src/mgcp/mgcp_protocol.c
+++ b/openbsc/src/mgcp/mgcp_protocol.c
@@ -409,6 +409,8 @@ static struct msgb *handle_create_con(struct mgcp_config *cfg, struct msgb *msg)
 		    error_code = 517;
 		    goto error2;
 		}
+
+		endp->orig_mode = endp->conn_mode;
 		break;
 	default:
 		LOGP(DMGCP, LOGL_NOTICE, "Unhandled option: '%c'/%d on 0x%x\n",
@@ -513,6 +515,7 @@ static struct msgb *handle_modify_con(struct mgcp_config *cfg, struct msgb *msg)
 		    error_code = 517;
 		    goto error3;
 		}
+		endp->orig_mode = endp->conn_mode;
 		break;
 	case 'Z':
 		silent = strcmp("noanswer", (const char *)&msg->l3h[line_start + 3]) == 0;
@@ -762,4 +765,6 @@ void mgcp_free_endp(struct mgcp_endpoint *endp)
 
 	endp->net_seq_no = endp->bts_seq_no = 0;
 	endp->net_lost_no = endp->bts_lost_no = 0;
+
+	endp->conn_mode = endp->orig_mode = MGCP_CONN_NONE;
 }
diff --git a/openbsc/src/mgcp/mgcp_vty.c b/openbsc/src/mgcp/mgcp_vty.c
index 49974c112..323b31139 100644
--- a/openbsc/src/mgcp/mgcp_vty.c
+++ b/openbsc/src/mgcp/mgcp_vty.c
@@ -254,12 +254,41 @@ DEFUN(cfg_mgcp_agent_addr,
 	return CMD_SUCCESS;
 }
 
+DEFUN(loop_endp,
+      loop_endp_cmd,
+      "loop-endpoint NAME (0|1)",
+      "Loop a given endpoint\n"
+      "The name in hex of the endpoint\n" "Enable/Disable the loop\n")
+{
+	struct mgcp_endpoint *endp;
+
+	int endp_no = strtoul(argv[0], NULL, 16);
+	if (endp_no < 1 || endp_no >= g_cfg->number_endpoints) {
+		vty_out(vty, "Loopback number %s/%d is invalid.%s",
+		argv[0], endp_no, VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+
+
+	endp = &g_cfg->endpoints[endp_no];
+	int loop = atoi(argv[1]);
+
+	if (loop)
+		endp->conn_mode = MGCP_CONN_LOOPBACK;
+	else
+		endp->conn_mode = endp->orig_mode;
+
+	return CMD_SUCCESS;
+}
+
 int mgcp_vty_init(void)
 {
 	install_element_ve(&show_mgcp_cmd);
+	install_element(ENABLE_NODE, &loop_endp_cmd);
 
 	install_element(CONFIG_NODE, &cfg_mgcp_cmd);
 	install_node(&mgcp_node, config_write_mgcp);
+
 	install_default(MGCP_NODE);
 	install_element(MGCP_NODE, &ournode_exit_cmd);
 	install_element(MGCP_NODE, &ournode_end_cmd);
-- 
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