add SCTP server

cmake/FindSCTP.cmake

@@ -0,0 +1,25 @@
+#.rst:
+# FindSCTP
+# --------
+#
+# Find libsctp
+#
+# Find libsctp headers and libraries.
+#
+# ::
+#
+#   SCTP_INCLUDE_DIRS   - where to find sctp.h
+#   SCTP_LIBRARIES      - List of libraries when using libsctp.
+#   SCTP_FOUND          - True if libSCTP found.
+#   SCTP_VERSION        - Version of found libsctp.
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(SCTP libsctp)
+
+# handle the QUIETLY and REQUIRED arguments and set TASN_FOUND to TRUE if
+# all listed variables are TRUE
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(SCTP
+                                  REQUIRED_VARS SCTP_LIBRARIES
+                                  VERSION_VAR SCTP_VERSION)
+

format/defs/SctpBusPDU.proto

@@ -0,0 +1,20 @@
+syntax = "proto2";
+
+message SctpBusPDU {
+  required int32 src_node_id = 1;
+  required string src_session_id = 2;
+  required int32 dst_node_id = 3;
+  required string dst_session_id = 4;
+
+  enum EventType {
+    REQUEST = 0;
+    REPLY = 1;
+  }
+  optional EventType type = 5 [default = REQUEST];
+
+  /* sequence to match requests/replies within connection.
+     must be set for replies and for requests which are need replies */
+  optional uint64 sequence = 6;
+
+  required bytes payload = 0xf;
+}

format/defs/YetiEvent.proto

@@ -0,0 +1,12 @@
+syntax = "proto2";
+
+import "CfgRequest.proto";
+import "CfgResponse.proto";
+
+message YetiEvent {
+  oneof data {
+    CfgRequest cfg_request = 10;
+    CfgResponse cfg_response = 11;
+    string json = 12;
+  }
+}

server/CMakeLists.txt

@@ -5,6 +5,7 @@ cmake_policy(SET CMP0026 OLD)
 find_package(Threads REQUIRED)
 find_package(NanoMsg REQUIRED)
 find_package(Confuse REQUIRED)
+find_package(SCTP REQUIRED)
 
 include_directories(${CMAKE_SOURCE_DIR}/format/src ${CMAKE_CURRENT_SOURCE_DIR}/src)
 include_directories(${PB_INCLUDE_DIRS})
@@ -17,6 +18,7 @@ target_link_libraries(yeti_management
 	${CMAKE_THREAD_LIBS_INIT}
 	${NanoMsg_LIBRARIES}
 	${Confuse_LIBRARIES}
+	${SCTP_LIBRARIES}
 	${PB_LIBRARIES})
 
 install(TARGETS yeti_management DESTINATION ${RUNTIME_DIR})