Implementation of a full flow allocator for the shim UDP.

It uses UDP port 0x0D1F on all hosts to send and receive flow
allocation messages. It supports communication between server and
client AP over a single shim IPCP.

Implementation of full flow deallocation is pending. Both the client
and the server still have to call flow_dealloc();

1 files changed, 14 insertions, 0 deletions

diff --git a/src/ipcpd/shim-udp/shim_udp_messages.proto b/src/ipcpd/shim-udp/shim_udp_messages.proto
new file mode 100644
index 00000000..1d054f1f
--- /dev/null
+++ b/src/ipcpd/shim-udp/shim_udp_messages.proto
@@ -0,0 +1,14 @@
+enum shim_udp_msg_code {
+        FLOW_REQ   = 1;
+        FLOW_REPLY = 2;
+};
+
+message shim_udp_msg {
+        required shim_udp_msg_code code  = 1;
+        optional string dst_name         = 2;
+        optional string src_ap_name      = 3;
+        optional string src_ae_name      = 4;
+        required sint32 src_udp_port     = 5;
+        optional sint32 dst_udp_port     = 6;
+        optional sint32 response         = 7;
+};