Introduce WinPacketClone with unit tests

- Divide win_packet.c into two files
    - win_packet.c - for NDIS-independent logic
    - win_packet_raw.c - only NDIS-dependent code
- Extend WIN_PACKET interface to allow cloning and establishing
  parent/child relationships
- Implement WinPacketClone unit tests

Change-Id: I468772725236a1f7bc69f1a7cddaefe21b486790
Depends-On: I1ff3d749b6d94747c89e9a520e56a59daa4c7b6f
Partial-Bug: #1737177

dp-core/SConscript

@@ -7,13 +7,6 @@ import platform
 Import('VRouterEnv')
 env = VRouterEnv.Clone()
 
-if platform.system() == 'Windows':
-    env.Append(CPPDEFINES = '__KERNEL__')
-    env.Append(CPPPATH = [env['TOP_INCLUDE'], '../test/windows/kernel_impl/include'])
-
-    # Treat warnings as errors
-    env.Append(CPPFLAGS = '/WX')
-
 env.Library('dp_core', Glob('*.c'))
 
 if 'install' in COMMAND_LINE_TARGETS:

test/windows/SConscript

@@ -5,26 +5,23 @@
 Import('VRouterEnv')
 env = VRouterEnv.Clone()
 
-env.Append(CPPPATH = [env['TOP_INCLUDE'], 'kernel_impl/include'])
-env.Append(CPPDEFINES = '__KERNEL__')
+env.Append(CPPPATH = [env['TOP_INCLUDE'], 'include'])
 
 # Treat warnings as errors
 env.Append(CPPFLAGS = '/WX')
 
 env.Replace(LIBPATH = env['TOP_LIB'])
-env.Append(LIBPATH = ['.', '../../windows', '../../dp-core', '../../sandesh'])
-
-vrouter_stubs = env.Object('vrouter_stubs.c')
-env.StaticLibrary('kernel_stubs', ['kernel_impl/src/wdm.c', 'kernel_impl/src/ndis.c'])
+env.Append(LIBPATH = ['.', '../../windows'])
 
 # vRouter code
-env.Replace(LIBS = ['windows_vrouter', 'dp_core', 'dp_sandesh_c', 'kernel_stubs'])
+env.Replace(LIBS = ['win_packet'])
 # 3rd party libs
 env.Append(LIBS = 'cmocka')
-# OS libs
-env.Append(LIBS = ['ws2_32.lib', 'ntdll.lib'])
 
 env.AppendENVPath('Path', Dir('#build/bin'))
-example_test = env.UnitTest('example_test', ['test.c', 'fake_win_packet.c', vrouter_stubs])
-kernel_tests = env.TestSuite('kernel-tests', [example_test])
+
+win_packet_clone_tests_src = ['test_win_packet_clone.c', 'fake_win_packet_raw.c']
+win_packet_clone_tests = env.UnitTest('win_packet_clone_tests', win_packet_clone_tests_src)
+
+kernel_tests = env.TestSuite('kernel-tests', [win_packet_clone_tests])
 env.Requires(kernel_tests, '#build/bin/cmocka.dll')

test/windows/fake_win_packet_raw.c

@@ -0,0 +1,62 @@
+/*
+ * fake_win_packet_raw.c
+ *
+ * Copyright (c) 2018 Juniper Networks, Inc. All rights reserved.
+ */
+#include "fake_win_packet.h"
+
+#include <assert.h>
+#include <stdlib.h>
+#include <setjmp.h>
+#include <cmocka.h>
+
+struct _WIN_PACKET {
+    PWIN_PACKET Parent;
+    LONG ChildRefCount;
+};
+
+PWIN_PACKET
+Fake_WinPacketAllocate()
+{
+    PWIN_PACKET packet = test_malloc(sizeof(*packet));
+    assert(packet != NULL);
+    memset(packet, 0, sizeof(*packet));
+    return packet;
+}
+
+VOID
+Fake_WinPacketFree(PWIN_PACKET Packet)
+{
+    test_free(Packet);
+}
+
+PWIN_PACKET
+WinPacketRawGetParentOf(PWIN_PACKET Packet)
+{
+    return Packet->Parent;
+}
+
+VOID
+WinPacketRawSetParentOf(PWIN_PACKET Packet, PWIN_PACKET Parent)
+{
+    Packet->Parent = Parent;
+}
+
+LONG
+WinPacketRawGetChildCountOf(PWIN_PACKET Packet)
+{
+    return Packet->ChildRefCount;
+}
+
+VOID
+WinPacketRawIncrementChildCountOf(PWIN_PACKET Packet)
+{
+    Packet->ChildRefCount++;
+}
+
+static PWIN_PACKET
+WinPacketRawAllocateClone_Impl(PWIN_PACKET Packet)
+{
+    return NULL;
+}
+PWIN_PACKET (*WinPacketRawAllocateClone)(PWIN_PACKET Packet) = WinPacketRawAllocateClone_Impl;

test/windows/include/fake_win_packet.h

@@ -0,0 +1,14 @@
+/*
+ * fake_win_packet.h
+ *
+ * Copyright (c) 2018 Juniper Networks, Inc. All rights reserved.
+ */
+#ifndef _FAKE_WIN_PACKET_H_
+#define _FAKE_WIN_PACKET_H_
+
+#include "win_packet.h"
+
+PWIN_PACKET Fake_WinPacketAllocate();
+VOID Fake_WinPacketFree(PWIN_PACKET Packet);
+
+#endif // _FAKE_WIN_PACKET_H_

test/windows/include/ndis.h

@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) 2018 Juniper Networks, Inc. All rights reserved.
+ */
+#ifndef _FAKE_NDIS_H_
+#define _FAKE_NDIS_H_
+
+typedef struct _NET_BUFFER_LIST NET_BUFFER_LIST, *PNET_BUFFER_LIST;
+
+#endif // _FAKE_NDIS_H_