3 files changed, 263 insertions, 41 deletions
diff --git a/pkg/tcpip/transport/raw/BUILD b/pkg/tcpip/transport/raw/BUILD
deleted file mode 100644
index 2f2131ff7..000000000
--- a/pkg/tcpip/transport/raw/BUILD
+++ /dev/null
@@ -1,41 +0,0 @@
-load("//tools/go_generics:defs.bzl", "go_template_instance")
-load("//tools/go_stateify:defs.bzl", "go_library")
-
-package(licenses = ["notice"])
-
-go_template_instance(
-    name = "raw_packet_list",
-    out = "raw_packet_list.go",
-    package = "raw",
-    prefix = "rawPacket",
-    template = "//pkg/ilist:generic_list",
-    types = {
-        "Element": "*rawPacket",
-        "Linker": "*rawPacket",
-    },
-)
-
-go_library(
-    name = "raw",
-    srcs = [
-        "endpoint.go",
-        "endpoint_state.go",
-        "protocol.go",
-        "raw_packet_list.go",
-    ],
-    importpath = "gvisor.dev/gvisor/pkg/tcpip/transport/raw",
-    imports = ["gvisor.dev/gvisor/pkg/tcpip/buffer"],
-    visibility = ["//visibility:public"],
-    deps = [
-        "//pkg/log",
-        "//pkg/sleep",
-        "//pkg/sync",
-        "//pkg/tcpip",
-        "//pkg/tcpip/buffer",
-        "//pkg/tcpip/header",
-        "//pkg/tcpip/iptables",
-        "//pkg/tcpip/stack",
-        "//pkg/tcpip/transport/packet",
-        "//pkg/waiter",
-    ],
-)
diff --git a/pkg/tcpip/transport/raw/raw_packet_list.go b/pkg/tcpip/transport/raw/raw_packet_list.go
new file mode 100755
index 000000000..12edb4334
--- /dev/null
+++ b/pkg/tcpip/transport/raw/raw_packet_list.go
@@ -0,0 +1,173 @@
+package raw
+
+// ElementMapper provides an identity mapping by default.
+//
+// This can be replaced to provide a struct that maps elements to linker
+// objects, if they are not the same. An ElementMapper is not typically
+// required if: Linker is left as is, Element is left as is, or Linker and
+// Element are the same type.
+type rawPacketElementMapper struct{}
+
+// linkerFor maps an Element to a Linker.
+//
+// This default implementation should be inlined.
+//
+//go:nosplit
+func (rawPacketElementMapper) linkerFor(elem *rawPacket) *rawPacket { return elem }
+
+// List is an intrusive list. Entries can be added to or removed from the list
+// in O(1) time and with no additional memory allocations.
+//
+// The zero value for List is an empty list ready to use.
+//
+// To iterate over a list (where l is a List):
+//      for e := l.Front(); e != nil; e = e.Next() {
+// 		// do something with e.
+//      }
+//
+// +stateify savable
+type rawPacketList struct {
+	head *rawPacket
+	tail *rawPacket
+}
+
+// Reset resets list l to the empty state.
+func (l *rawPacketList) Reset() {
+	l.head = nil
+	l.tail = nil
+}
+
+// Empty returns true iff the list is empty.
+func (l *rawPacketList) Empty() bool {
+	return l.head == nil
+}
+
+// Front returns the first element of list l or nil.
+func (l *rawPacketList) Front() *rawPacket {
+	return l.head
+}
+
+// Back returns the last element of list l or nil.
+func (l *rawPacketList) Back() *rawPacket {
+	return l.tail
+}
+
+// PushFront inserts the element e at the front of list l.
+func (l *rawPacketList) PushFront(e *rawPacket) {
+	rawPacketElementMapper{}.linkerFor(e).SetNext(l.head)
+	rawPacketElementMapper{}.linkerFor(e).SetPrev(nil)
+
+	if l.head != nil {
+		rawPacketElementMapper{}.linkerFor(l.head).SetPrev(e)
+	} else {
+		l.tail = e
+	}
+
+	l.head = e
+}
+
+// PushBack inserts the element e at the back of list l.
+func (l *rawPacketList) PushBack(e *rawPacket) {
+	rawPacketElementMapper{}.linkerFor(e).SetNext(nil)
+	rawPacketElementMapper{}.linkerFor(e).SetPrev(l.tail)
+
+	if l.tail != nil {
+		rawPacketElementMapper{}.linkerFor(l.tail).SetNext(e)
+	} else {
+		l.head = e
+	}
+
+	l.tail = e
+}
+
+// PushBackList inserts list m at the end of list l, emptying m.
+func (l *rawPacketList) PushBackList(m *rawPacketList) {
+	if l.head == nil {
+		l.head = m.head
+		l.tail = m.tail
+	} else if m.head != nil {
+		rawPacketElementMapper{}.linkerFor(l.tail).SetNext(m.head)
+		rawPacketElementMapper{}.linkerFor(m.head).SetPrev(l.tail)
+
+		l.tail = m.tail
+	}
+
+	m.head = nil
+	m.tail = nil
+}
+
+// InsertAfter inserts e after b.
+func (l *rawPacketList) InsertAfter(b, e *rawPacket) {
+	a := rawPacketElementMapper{}.linkerFor(b).Next()
+	rawPacketElementMapper{}.linkerFor(e).SetNext(a)
+	rawPacketElementMapper{}.linkerFor(e).SetPrev(b)
+	rawPacketElementMapper{}.linkerFor(b).SetNext(e)
+
+	if a != nil {
+		rawPacketElementMapper{}.linkerFor(a).SetPrev(e)
+	} else {
+		l.tail = e
+	}
+}
+
+// InsertBefore inserts e before a.
+func (l *rawPacketList) InsertBefore(a, e *rawPacket) {
+	b := rawPacketElementMapper{}.linkerFor(a).Prev()
+	rawPacketElementMapper{}.linkerFor(e).SetNext(a)
+	rawPacketElementMapper{}.linkerFor(e).SetPrev(b)
+	rawPacketElementMapper{}.linkerFor(a).SetPrev(e)
+
+	if b != nil {
+		rawPacketElementMapper{}.linkerFor(b).SetNext(e)
+	} else {
+		l.head = e
+	}
+}
+
+// Remove removes e from l.
+func (l *rawPacketList) Remove(e *rawPacket) {
+	prev := rawPacketElementMapper{}.linkerFor(e).Prev()
+	next := rawPacketElementMapper{}.linkerFor(e).Next()
+
+	if prev != nil {
+		rawPacketElementMapper{}.linkerFor(prev).SetNext(next)
+	} else {
+		l.head = next
+	}
+
+	if next != nil {
+		rawPacketElementMapper{}.linkerFor(next).SetPrev(prev)
+	} else {
+		l.tail = prev
+	}
+}
+
+// Entry is a default implementation of Linker. Users can add anonymous fields
+// of this type to their structs to make them automatically implement the
+// methods needed by List.
+//
+// +stateify savable
+type rawPacketEntry struct {
+	next *rawPacket
+	prev *rawPacket
+}
+
+// Next returns the entry that follows e in the list.
+func (e *rawPacketEntry) Next() *rawPacket {
+	return e.next
+}
+
+// Prev returns the entry that precedes e in the list.
+func (e *rawPacketEntry) Prev() *rawPacket {
+	return e.prev
+}
+
+// SetNext assigns 'entry' as the entry that follows e in the list.
+func (e *rawPacketEntry) SetNext(elem *rawPacket) {
+	e.next = elem
+}
+
+// SetPrev assigns 'entry' as the entry that precedes e in the list.
+func (e *rawPacketEntry) SetPrev(elem *rawPacket) {
+	e.prev = elem
+}
diff --git a/pkg/tcpip/transport/raw/raw_state_autogen.go b/pkg/tcpip/transport/raw/raw_state_autogen.go
new file mode 100755
index 000000000..3753ccc37
--- /dev/null
+++ b/pkg/tcpip/transport/raw/raw_state_autogen.go
@@ -0,0 +1,90 @@
+// automatically generated by stateify.
+
+package raw
+
+import (
+	"gvisor.dev/gvisor/pkg/state"
+	"gvisor.dev/gvisor/pkg/tcpip/buffer"
+)
+
+func (x *rawPacket) beforeSave() {}
+func (x *rawPacket) save(m state.Map) {
+	x.beforeSave()
+	var data buffer.VectorisedView = x.saveData()
+	m.SaveValue("data", data)
+	m.Save("rawPacketEntry", &x.rawPacketEntry)
+	m.Save("timestampNS", &x.timestampNS)
+	m.Save("senderAddr", &x.senderAddr)
+}
+
+func (x *rawPacket) afterLoad() {}
+func (x *rawPacket) load(m state.Map) {
+	m.Load("rawPacketEntry", &x.rawPacketEntry)
+	m.Load("timestampNS", &x.timestampNS)
+	m.Load("senderAddr", &x.senderAddr)
+	m.LoadValue("data", new(buffer.VectorisedView), func(y interface{}) { x.loadData(y.(buffer.VectorisedView)) })
+}
+
+func (x *endpoint) save(m state.Map) {
+	x.beforeSave()
+	var rcvBufSizeMax int = x.saveRcvBufSizeMax()
+	m.SaveValue("rcvBufSizeMax", rcvBufSizeMax)
+	m.Save("TransportEndpointInfo", &x.TransportEndpointInfo)
+	m.Save("waiterQueue", &x.waiterQueue)
+	m.Save("associated", &x.associated)
+	m.Save("rcvList", &x.rcvList)
+	m.Save("rcvBufSize", &x.rcvBufSize)
+	m.Save("rcvClosed", &x.rcvClosed)
+	m.Save("sndBufSize", &x.sndBufSize)
+	m.Save("closed", &x.closed)
+	m.Save("connected", &x.connected)
+	m.Save("bound", &x.bound)
+}
+
+func (x *endpoint) load(m state.Map) {
+	m.Load("TransportEndpointInfo", &x.TransportEndpointInfo)
+	m.Load("waiterQueue", &x.waiterQueue)
+	m.Load("associated", &x.associated)
+	m.Load("rcvList", &x.rcvList)
+	m.Load("rcvBufSize", &x.rcvBufSize)
+	m.Load("rcvClosed", &x.rcvClosed)
+	m.Load("sndBufSize", &x.sndBufSize)
+	m.Load("closed", &x.closed)
+	m.Load("connected", &x.connected)
+	m.Load("bound", &x.bound)
+	m.LoadValue("rcvBufSizeMax", new(int), func(y interface{}) { x.loadRcvBufSizeMax(y.(int)) })
+	m.AfterLoad(x.afterLoad)
+}
+
+func (x *rawPacketList) beforeSave() {}
+func (x *rawPacketList) save(m state.Map) {
+	x.beforeSave()
+	m.Save("head", &x.head)
+	m.Save("tail", &x.tail)
+}
+
+func (x *rawPacketList) afterLoad() {}
+func (x *rawPacketList) load(m state.Map) {
+	m.Load("head", &x.head)
+	m.Load("tail", &x.tail)
+}
+
+func (x *rawPacketEntry) beforeSave() {}
+func (x *rawPacketEntry) save(m state.Map) {
+	x.beforeSave()
+	m.Save("next", &x.next)
+	m.Save("prev", &x.prev)
+}
+
+func (x *rawPacketEntry) afterLoad() {}
+func (x *rawPacketEntry) load(m state.Map) {
+	m.Load("next", &x.next)
+	m.Load("prev", &x.prev)
+}
+
+func init() {
+	state.Register("raw.rawPacket", (*rawPacket)(nil), state.Fns{Save: (*rawPacket).save, Load: (*rawPacket).load})
+	state.Register("raw.endpoint", (*endpoint)(nil), state.Fns{Save: (*endpoint).save, Load: (*endpoint).load})
+	state.Register("raw.rawPacketList", (*rawPacketList)(nil), state.Fns{Save: (*rawPacketList).save, Load: (*rawPacketList).load})
+	state.Register("raw.rawPacketEntry", (*rawPacketEntry)(nil), state.Fns{Save: (*rawPacketEntry).save, Load: (*rawPacketEntry).load})
+}