build: Add protobuf-c commands for cmake

This adds a cmake file so that the build can ask to generate
protobuf-c files from .proto files. The messages between the IRM and
the library are compiled into the library.

2 files changed, 45 insertions, 2 deletions

diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt
index 7ce98bf2..e05dce8b 100644
--- a/src/lib/CMakeLists.txt
+++ b/src/lib/CMakeLists.txt
@@ -3,6 +3,12 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
 include_directories(${CMAKE_SOURCE_DIR}/include)
 include_directories(${CMAKE_BINARY_DIR}/include)
+find_package(ProtobufC REQUIRED)
+
+include_directories(${PROTOBUF_INCLUDE_DIRS})
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
+protobuf_generate_c(PROTO_SRCS PROTO_HDRS irmd_messages.proto)
 
 find_library(LIBRT_LIBRARIES rt)
 if(NOT LIBRT_LIBRARIES)
@@ -30,8 +36,8 @@ set(SOURCE_FILES
         utils.c
 )
 
-add_library(ouroboros SHARED ${SOURCE_FILES})
-target_link_libraries(ouroboros rt pthread)
+add_library(ouroboros SHARED ${SOURCE_FILES} ${PROTO_SRCS} ${PROTO_HDRS})
+target_link_libraries(ouroboros rt pthread ${PROTOBUF_LIBRARIES})
 
 include(MacroAddCompileFlags)
 if (CMAKE_BUILD_TYPE MATCHES Debug)
diff --git a/src/lib/irmd_messages.proto b/src/lib/irmd_messages.proto
new file mode 100644
index 00000000..c61d1b6d
--- /dev/null
+++ b/src/lib/irmd_messages.proto
@@ -0,0 +1,37 @@
+enum irm_msg_code {
+        IRM_CREATE_IPCP = 1;
+        IRM_DESTROY_IPCP = 2;
+        IRM_BOOTSTRAP_IPCP = 3;
+        IRM_ENROLL_IPCP = 4;
+        IRM_REG_IPCP = 5;
+        IRM_UNREG_IPCP = 6;
+        IRM_AP_REG = 7;
+        IRM_AP_REG_R = 8;
+        IRM_AP_UNREG = 9;
+        IRM_FLOW_ACCEPT = 10;
+        IRM_FLOW_ACCEPT_R = 11;
+        IRM_FLOW_ALLOC_RESP = 12;
+        IRM_FLOW_ALLOC = 13;
+        IRM_FLOW_ALLOC_R = 14;
+        IRM_FLOW_ALLOC_RES = 15;
+        IRM_FLOW_ALLOC_RES_R = 16;
+        IRM_FLOW_DEALLOC = 17;
+        IRM_FLOW_CONTROL = 18;
+        IRM_FLOW_WRITE = 19;
+        IRM_FLOW_READ = 20;
+};
+
+message irm_msg {
+        required irm_msg_code code = 1;
+        optional string ap_name = 2;
+        optional uint32 api_id = 3;
+        optional string ae_name = 4;
+        optional string ipcp_type = 5;
+        // Missing dif_config field here
+        repeated string dif_name = 7;
+        optional int32 fd = 8;
+        optional int32 result = 9;
+        // Missing qos_spec here
+        optional int32 oflags = 10;
+        optional string dst_ap_name = 11;
+};