tools: Add tool to connect IPCP components

This enables user-written tools to instruct IPCPs to establish and
tear down connections (a.k.a. adjacencies) between its internal
components (Management and Data Transfer).

For more info, do "irm ipcp connect" or "irm ipcp disconnect" on the
command line.

This commit exposes a deletion bug in the RIB where FSO's fail to
unpack/parse. This will be fixed when the RIB is deprecated.

1 files changed, 28 insertions, 0 deletions

diff --git a/src/ipcpd/ipcp.c b/src/ipcpd/ipcp.c
index d4b3a7fc..41ea4784 100644
--- a/src/ipcpd/ipcp.c
+++ b/src/ipcpd/ipcp.c
@@ -301,6 +301,32 @@ static void * mainloop(void * o)
                                 dif_info.dif_name      = info.dif_name;
                         }
                         break;
+                case IPCP_MSG_CODE__IPCP_CONNECT:
+                        ret_msg.has_result = true;
+
+                        if (ipcpi.ops->ipcp_connect == NULL) {
+                                log_err("Connect unsupported.");
+                                ret_msg.result = -ENOTSUP;
+                                break;
+                        }
+
+                        ret_msg.result =
+                                ipcpi.ops->ipcp_connect(msg->dst_name,
+                                                        msg->comp_name);
+                        break;
+                case IPCP_MSG_CODE__IPCP_DISCONNECT:
+                        ret_msg.has_result = true;
+
+                        if (ipcpi.ops->ipcp_disconnect == NULL) {
+                                log_err("Disconnect unsupported.");
+                                ret_msg.result = -ENOTSUP;
+                                break;
+                        }
+
+                        ret_msg.result =
+                                ipcpi.ops->ipcp_disconnect(msg->dst_name,
+                                                           msg->comp_name);
+                        break;
                 case IPCP_MSG_CODE__IPCP_REG:
                         ret_msg.has_result = true;
 
@@ -435,6 +461,8 @@ static void * mainloop(void * o)
                                 ipcpi.ops->ipcp_flow_dealloc(fd);
                         break;
                 default:
+                        ret_msg.has_result = true;
+                        ret_msg.result     = -1;
                         log_err("Don't know that message code");
                         break;
                 }