diff --git a/xfa/fxfa/fxfa_basic.h b/xfa/fxfa/fxfa_basic.h
index c2865bd..333a61d 100644
--- a/xfa/fxfa/fxfa_basic.h
+++ b/xfa/fxfa/fxfa_basic.h
@@ -46,21 +46,10 @@
 };
 
 enum class XFA_PacketType : uint8_t {
-  User,
-  SourceSet,
-  Pdf,
-  Xdc,
-  Xdp,
-  Xmpmeta,
-  Xfdf,
-  Config,
-  LocaleSet,
-  Stylesheet,
-  Template,
-  Signature,
-  Datasets,
-  Form,
-  ConnectionSet,
+#undef PCKT____
+#define PCKT____(a, b, c, d, e, f) c,
+#include "xfa/fxfa/parser/packets.inc"
+#undef PCKT____
 };
 
 enum XFA_XDPPACKET {
diff --git a/xfa/fxfa/fxfa_basic_unittest.cpp b/xfa/fxfa/fxfa_basic_unittest.cpp
index ad174d1..5f77708 100644
--- a/xfa/fxfa/fxfa_basic_unittest.cpp
+++ b/xfa/fxfa/fxfa_basic_unittest.cpp
@@ -21,7 +21,15 @@
 
 }  // namespace
 
-TEST(FXFABasic, AttrHashTest) {
+TEST(FXFABasic, PacketHashTest) {
+  uint32_t so_far = 0;
+#undef PCKT____
+#define PCKT____(a, b, c, d, e, f) HashTestCase(a, b, &so_far);
+#include "xfa/fxfa/parser/packets.inc"
+#undef PCKT____
+}
+
+TEST(FXFABasic, AttributeHashTest) {
   uint32_t so_far = 0;
 #undef ATTR____
 #define ATTR____(a, b, c, d) HashTestCase(a, b, &so_far);
diff --git a/xfa/fxfa/parser/cxfa_document_parser.cpp b/xfa/fxfa/parser/cxfa_document_parser.cpp
index 5824504..8c79bab 100644
--- a/xfa/fxfa/parser/cxfa_document_parser.cpp
+++ b/xfa/fxfa/parser/cxfa_document_parser.cpp
@@ -40,47 +40,14 @@
   const wchar_t* uri;
   uint32_t flags;
 };
+
 const PacketInfo PacketData[] = {
-    {0x0, nullptr, XFA_PacketType::User, nullptr,
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTMANY},
-    {0x811929d, L"sourceSet", XFA_PacketType::SourceSet,
-     L"http://www.xfa.org/schema/xfa-source-set/",
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
-    {0xb843dba, L"pdf", XFA_PacketType::Pdf, L"http://ns.adobe.com/xdp/pdf/",
-     XFA_XDPPACKET_FLAGS_COMPLETEMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
-    {0xc56afbf, L"xdc", XFA_PacketType::Xdc, L"http://www.xfa.org/schema/xdc/",
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
-    {0xc56afcc, L"xdp", XFA_PacketType::Xdp, L"http://ns.adobe.com/xdp/",
-     XFA_XDPPACKET_FLAGS_COMPLETEMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
-    {0x132a8fbc, L"xmpmeta", XFA_PacketType::Xmpmeta,
-     L"http://ns.adobe.com/xmpmeta/",
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTMANY},
-    {0x48d004a8, L"xfdf", XFA_PacketType::Xfdf, L"http://ns.adobe.com/xfdf/",
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
-    {0x4e1e39b6, L"config", XFA_PacketType::Config,
-     L"http://www.xfa.org/schema/xci/",
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
-    {0x5473b6dc, L"localeSet", XFA_PacketType::LocaleSet,
-     L"http://www.xfa.org/schema/xfa-locale-set/",
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
-    {0x6038580a, L"stylesheet", XFA_PacketType::Stylesheet,
-     L"http://www.w3.org/1999/XSL/Transform",
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTMANY},
-    {0x803550fc, L"template", XFA_PacketType::Template,
-     L"http://www.xfa.org/schema/xfa-template/",
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
-    {0x8b036f32, L"signature", XFA_PacketType::Signature,
-     L"http://www.w3.org/2000/09/xmldsig#",
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
-    {0x99b95079, L"datasets", XFA_PacketType::Datasets,
-     L"http://www.xfa.org/schema/xfa-data/",
-     XFA_XDPPACKET_FLAGS_PREFIXMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
-    {0xcd309ff4, L"form", XFA_PacketType::Form,
-     L"http://www.xfa.org/schema/xfa-form/",
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
-    {0xe14c801c, L"connectionSet", XFA_PacketType::ConnectionSet,
-     L"http://www.xfa.org/schema/xfa-connection-set/",
-     XFA_XDPPACKET_FLAGS_NOMATCH | XFA_XDPPACKET_FLAGS_SUPPORTONE},
+#undef PCKT____
+#define PCKT____(a, b, c, d, e, f) \
+  {a, L##b, XFA_PacketType::c, d,  \
+   XFA_XDPPACKET_FLAGS_##e | XFA_XDPPACKET_FLAGS_##f},
+#include "xfa/fxfa/parser/packets.inc"
+#undef PCKT____
 };
 
 const PacketInfo* GetPacketByIndex(XFA_PacketType ePacket) {
diff --git a/xfa/fxfa/parser/packets.inc b/xfa/fxfa/parser/packets.inc
new file mode 100644
index 0000000..58e49a4
--- /dev/null
+++ b/xfa/fxfa/parser/packets.inc
@@ -0,0 +1,21 @@
+// Copyright 2018 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+PCKT____(0x0811929du, "sourceSet", SourceSet, L"http://www.xfa.org/schema/xfa-source-set/", NOMATCH, SUPPORTONE)
+PCKT____(0x0b843dbau, "pdf", Pdf, L"http://ns.adobe.com/xdp/pdf/", COMPLETEMATCH, SUPPORTONE)
+PCKT____(0x0c56afbfu, "xdc", Xdc, L"http://www.xfa.org/schema/xdc/", NOMATCH, SUPPORTONE)
+PCKT____(0x0c56afccu, "xdp", Xdp, L"http://ns.adobe.com/xdp/", COMPLETEMATCH, SUPPORTONE)
+PCKT____(0x132a8fbcu, "xmpmeta", Xmpmeta, L"http://ns.adobe.com/xmpmeta/", NOMATCH, SUPPORTMANY)
+PCKT____(0x48d004a8u, "xfdf", Xfdf, L"http://ns.adobe.com/xfdf/", NOMATCH, SUPPORTONE)
+PCKT____(0x4e1e39b6u, "config", Config, L"http://www.xfa.org/schema/xci/", NOMATCH, SUPPORTONE)
+PCKT____(0x5473b6dcu, "localeSet", LocaleSet, L"http://www.xfa.org/schema/xfa-locale-set/", NOMATCH, SUPPORTONE)
+PCKT____(0x6038580au, "stylesheet", Stylesheet, L"http://www.w3.org/1999/XSL/Transform", NOMATCH, SUPPORTMANY)
+PCKT____(0x803550fcu, "template", Template,  L"http://www.xfa.org/schema/xfa-template/", NOMATCH, SUPPORTONE)
+PCKT____(0x8b036f32u, "signature", Signature, L"http://www.w3.org/2000/09/xmldsig#", NOMATCH, SUPPORTONE)
+PCKT____(0x99b95079u, "datasets", Datasets,  L"http://www.xfa.org/schema/xfa-data/", PREFIXMATCH, SUPPORTONE)
+PCKT____(0xcd309ff4u, "form", Form, L"http://www.xfa.org/schema/xfa-form/", NOMATCH, SUPPORTONE)
+PCKT____(0xe14c801cu, "connectionSet", ConnectionSet, L"http://www.xfa.org/schema/xfa-connection-set/", NOMATCH, SUPPORTONE)
+PCKT____(0xffffffffu, "user", User, nullptr, NOMATCH, SUPPORTMANY)