summaryrefslogtreecommitdiffhomepage
diff options
context:
space:
mode:
-rw-r--r--pkg/tcpip/network/fragmentation/BUILD2
-rw-r--r--pkg/tcpip/network/fragmentation/frag_heap.go77
-rw-r--r--pkg/tcpip/network/fragmentation/frag_heap_test.go126
-rw-r--r--pkg/tcpip/network/fragmentation/fragmentation.go4
-rw-r--r--pkg/tcpip/network/fragmentation/reassembler.go127
-rw-r--r--pkg/tcpip/network/fragmentation/reassembler_test.go137
6 files changed, 167 insertions, 306 deletions
diff --git a/pkg/tcpip/network/fragmentation/BUILD b/pkg/tcpip/network/fragmentation/BUILD
index d8e4a3b54..429af69ee 100644
--- a/pkg/tcpip/network/fragmentation/BUILD
+++ b/pkg/tcpip/network/fragmentation/BUILD
@@ -18,7 +18,6 @@ go_template_instance(
go_library(
name = "fragmentation",
srcs = [
- "frag_heap.go",
"fragmentation.go",
"reassembler.go",
"reassembler_list.go",
@@ -38,7 +37,6 @@ go_test(
name = "fragmentation_test",
size = "small",
srcs = [
- "frag_heap_test.go",
"fragmentation_test.go",
"reassembler_test.go",
],
diff --git a/pkg/tcpip/network/fragmentation/frag_heap.go b/pkg/tcpip/network/fragmentation/frag_heap.go
deleted file mode 100644
index 0b570d25a..000000000
--- a/pkg/tcpip/network/fragmentation/frag_heap.go
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package fragmentation
-
-import (
- "container/heap"
- "fmt"
-
- "gvisor.dev/gvisor/pkg/tcpip/buffer"
-)
-
-type fragment struct {
- offset uint16
- vv buffer.VectorisedView
-}
-
-type fragHeap []fragment
-
-func (h *fragHeap) Len() int {
- return len(*h)
-}
-
-func (h *fragHeap) Less(i, j int) bool {
- return (*h)[i].offset < (*h)[j].offset
-}
-
-func (h *fragHeap) Swap(i, j int) {
- (*h)[i], (*h)[j] = (*h)[j], (*h)[i]
-}
-
-func (h *fragHeap) Push(x interface{}) {
- *h = append(*h, x.(fragment))
-}
-
-func (h *fragHeap) Pop() interface{} {
- old := *h
- n := len(old)
- x := old[n-1]
- *h = old[:n-1]
- return x
-}
-
-// reassamble empties the heap and returns a VectorisedView
-// containing a reassambled version of the fragments inside the heap.
-func (h *fragHeap) reassemble() (buffer.VectorisedView, error) {
- curr := heap.Pop(h).(fragment)
- views := curr.vv.Views()
- size := curr.vv.Size()
-
- if curr.offset != 0 {
- return buffer.VectorisedView{}, fmt.Errorf("offset of the first packet is != 0 (%d)", curr.offset)
- }
-
- for h.Len() > 0 {
- curr := heap.Pop(h).(fragment)
- if int(curr.offset) < size {
- curr.vv.TrimFront(size - int(curr.offset))
- } else if int(curr.offset) > size {
- return buffer.VectorisedView{}, fmt.Errorf("packet has a hole, expected offset %d, got %d", size, curr.offset)
- }
- size += curr.vv.Size()
- views = append(views, curr.vv.Views()...)
- }
- return buffer.NewVectorisedView(size, views), nil
-}
diff --git a/pkg/tcpip/network/fragmentation/frag_heap_test.go b/pkg/tcpip/network/fragmentation/frag_heap_test.go
deleted file mode 100644
index 9ececcb9f..000000000
--- a/pkg/tcpip/network/fragmentation/frag_heap_test.go
+++ /dev/null
@@ -1,126 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package fragmentation
-
-import (
- "container/heap"
- "reflect"
- "testing"
-
- "gvisor.dev/gvisor/pkg/tcpip/buffer"
-)
-
-var reassambleTestCases = []struct {
- comment string
- in []fragment
- want buffer.VectorisedView
-}{
- {
- comment: "Non-overlapping in-order",
- in: []fragment{
- {offset: 0, vv: vv(1, "0")},
- {offset: 1, vv: vv(1, "1")},
- },
- want: vv(2, "0", "1"),
- },
- {
- comment: "Non-overlapping out-of-order",
- in: []fragment{
- {offset: 1, vv: vv(1, "1")},
- {offset: 0, vv: vv(1, "0")},
- },
- want: vv(2, "0", "1"),
- },
- {
- comment: "Duplicated packets",
- in: []fragment{
- {offset: 0, vv: vv(1, "0")},
- {offset: 0, vv: vv(1, "0")},
- },
- want: vv(1, "0"),
- },
- {
- comment: "Overlapping in-order",
- in: []fragment{
- {offset: 0, vv: vv(2, "01")},
- {offset: 1, vv: vv(2, "12")},
- },
- want: vv(3, "01", "2"),
- },
- {
- comment: "Overlapping out-of-order",
- in: []fragment{
- {offset: 1, vv: vv(2, "12")},
- {offset: 0, vv: vv(2, "01")},
- },
- want: vv(3, "01", "2"),
- },
- {
- comment: "Overlapping subset in-order",
- in: []fragment{
- {offset: 0, vv: vv(3, "012")},
- {offset: 1, vv: vv(1, "1")},
- },
- want: vv(3, "012"),
- },
- {
- comment: "Overlapping subset out-of-order",
- in: []fragment{
- {offset: 1, vv: vv(1, "1")},
- {offset: 0, vv: vv(3, "012")},
- },
- want: vv(3, "012"),
- },
-}
-
-func TestReassamble(t *testing.T) {
- for _, c := range reassambleTestCases {
- t.Run(c.comment, func(t *testing.T) {
- h := make(fragHeap, 0, 8)
- heap.Init(&h)
- for _, f := range c.in {
- heap.Push(&h, f)
- }
- got, err := h.reassemble()
- if err != nil {
- t.Fatal(err)
- }
- if !reflect.DeepEqual(got, c.want) {
- t.Errorf("got reassemble(%+v) = %v, want = %v", c.in, got, c.want)
- }
- })
- }
-}
-
-func TestReassambleFailsForNonZeroOffset(t *testing.T) {
- h := make(fragHeap, 0, 8)
- heap.Init(&h)
- heap.Push(&h, fragment{offset: 1, vv: vv(1, "0")})
- _, err := h.reassemble()
- if err == nil {
- t.Errorf("reassemble() did not fail when the first packet had offset != 0")
- }
-}
-
-func TestReassambleFailsForHoles(t *testing.T) {
- h := make(fragHeap, 0, 8)
- heap.Init(&h)
- heap.Push(&h, fragment{offset: 0, vv: vv(1, "0")})
- heap.Push(&h, fragment{offset: 2, vv: vv(1, "1")})
- _, err := h.reassemble()
- if err == nil {
- t.Errorf("reassemble() did not fail when there was a hole in the packet")
- }
-}
diff --git a/pkg/tcpip/network/fragmentation/fragmentation.go b/pkg/tcpip/network/fragmentation/fragmentation.go
index d31296a41..1af87d713 100644
--- a/pkg/tcpip/network/fragmentation/fragmentation.go
+++ b/pkg/tcpip/network/fragmentation/fragmentation.go
@@ -53,6 +53,10 @@ var (
// ErrFragmentOverlap indicates that, during reassembly, a fragment overlaps
// with another one.
ErrFragmentOverlap = errors.New("overlapping fragments")
+
+ // ErrFragmentConflict indicates that, during reassembly, some fragments are
+ // in conflict with one another.
+ ErrFragmentConflict = errors.New("conflicting fragments")
)
// FragmentID is the identifier for a fragment.
diff --git a/pkg/tcpip/network/fragmentation/reassembler.go b/pkg/tcpip/network/fragmentation/reassembler.go
index 04072d966..9b20bb1d8 100644
--- a/pkg/tcpip/network/fragmentation/reassembler.go
+++ b/pkg/tcpip/network/fragmentation/reassembler.go
@@ -15,9 +15,8 @@
package fragmentation
import (
- "container/heap"
- "fmt"
"math"
+ "sort"
"gvisor.dev/gvisor/pkg/sync"
"gvisor.dev/gvisor/pkg/tcpip"
@@ -29,6 +28,8 @@ type hole struct {
first uint16
last uint16
filled bool
+ final bool
+ data buffer.View
}
type reassembler struct {
@@ -39,7 +40,6 @@ type reassembler struct {
mu sync.Mutex
holes []hole
filled int
- heap fragHeap
done bool
creationTime int64
pkt *stack.PacketBuffer
@@ -48,51 +48,71 @@ type reassembler struct {
func newReassembler(id FragmentID, clock tcpip.Clock) *reassembler {
r := &reassembler{
id: id,
- holes: make([]hole, 0, 16),
- heap: make(fragHeap, 0, 8),
creationTime: clock.NowMonotonic(),
}
r.holes = append(r.holes, hole{
first: 0,
last: math.MaxUint16,
filled: false,
+ final: true,
})
return r
}
-// updateHoles updates the list of holes for an incoming fragment. It returns
-// true if the fragment fits, it is not a duplicate and it does not overlap with
-// another fragment.
-//
-// For IPv6, overlaps with an existing fragment are explicitly forbidden by
-// RFC 8200 section 4.5:
-// If any of the fragments being reassembled overlap with any other fragments
-// being reassembled for the same packet, reassembly of that packet must be
-// abandoned and all the fragments that have been received for that packet
-// must be discarded, and no ICMP error messages should be sent.
-//
-// It is not explicitly forbidden for IPv4, but to keep parity with Linux we
-// disallow it as well:
-// https://github.com/torvalds/linux/blob/38525c6/net/ipv4/inet_fragment.c#L349
-func (r *reassembler) updateHoles(first, last uint16, more bool) (bool, error) {
+func (r *reassembler) process(first, last uint16, more bool, proto uint8, pkt *stack.PacketBuffer) (buffer.VectorisedView, uint8, bool, int, error) {
+ r.mu.Lock()
+ defer r.mu.Unlock()
+ if r.done {
+ // A concurrent goroutine might have already reassembled
+ // the packet and emptied the heap while this goroutine
+ // was waiting on the mutex. We don't have to do anything in this case.
+ return buffer.VectorisedView{}, 0, false, 0, nil
+ }
+
+ var holeFound bool
+ var consumed int
for i := range r.holes {
currentHole := &r.holes[i]
- if currentHole.filled || last < currentHole.first || currentHole.last < first {
+ if last < currentHole.first || currentHole.last < first {
continue
}
-
+ // For IPv6, overlaps with an existing fragment are explicitly forbidden by
+ // RFC 8200 section 4.5:
+ // If any of the fragments being reassembled overlap with any other
+ // fragments being reassembled for the same packet, reassembly of that
+ // packet must be abandoned and all the fragments that have been received
+ // for that packet must be discarded, and no ICMP error messages should be
+ // sent.
+ //
+ // It is not explicitly forbidden for IPv4, but to keep parity with Linux we
+ // disallow it as well:
+ // https://github.com/torvalds/linux/blob/38525c6/net/ipv4/inet_fragment.c#L349
if first < currentHole.first || currentHole.last < last {
// Incoming fragment only partially fits in the free hole.
- return false, ErrFragmentOverlap
+ return buffer.VectorisedView{}, 0, false, 0, ErrFragmentOverlap
+ }
+ if !more {
+ if !currentHole.final || currentHole.filled && currentHole.last != last {
+ // We have another final fragment, which does not perfectly overlap.
+ return buffer.VectorisedView{}, 0, false, 0, ErrFragmentConflict
+ }
}
- r.filled++
+ holeFound = true
+ if currentHole.filled {
+ // Incoming fragment is a duplicate.
+ continue
+ }
+
+ // We are populating the current hole with the payload and creating a new
+ // hole for any unfilled ranges on either end.
if first > currentHole.first {
r.holes = append(r.holes, hole{
first: currentHole.first,
last: first - 1,
filled: false,
+ final: false,
})
}
if last < currentHole.last && more {
@@ -100,39 +120,22 @@ func (r *reassembler) updateHoles(first, last uint16, more bool) (bool, error) {
first: last + 1,
last: currentHole.last,
filled: false,
+ final: currentHole.final,
})
+ currentHole.final = false
}
+ v := pkt.Data.ToOwnedView()
+ consumed = v.Size()
+ r.size += consumed
// Update the current hole to precisely match the incoming fragment.
r.holes[i] = hole{
first: first,
last: last,
filled: true,
+ final: currentHole.final,
+ data: v,
}
- return true, nil
- }
-
- // Incoming fragment is a duplicate/subset, or its offset comes after the end
- // of the reassembled payload.
- return false, nil
-}
-
-func (r *reassembler) process(first, last uint16, more bool, proto uint8, pkt *stack.PacketBuffer) (buffer.VectorisedView, uint8, bool, int, error) {
- r.mu.Lock()
- defer r.mu.Unlock()
- if r.done {
- // A concurrent goroutine might have already reassembled
- // the packet and emptied the heap while this goroutine
- // was waiting on the mutex. We don't have to do anything in this case.
- return buffer.VectorisedView{}, 0, false, 0, nil
- }
-
- used, err := r.updateHoles(first, last, more)
- if err != nil {
- return buffer.VectorisedView{}, 0, false, 0, fmt.Errorf("fragment reassembly failed: %w", err)
- }
-
- var consumed int
- if used {
+ r.filled++
// For IPv6, it is possible to have different Protocol values between
// fragments of a packet (because, unlike IPv4, the Protocol is not used to
// identify a fragment). In this case, only the Protocol of the first
@@ -145,22 +148,30 @@ func (r *reassembler) process(first, last uint16, more bool, proto uint8, pkt *s
r.pkt = pkt
r.proto = proto
}
- vv := pkt.Data
- // We store the incoming packet only if it filled some holes.
- heap.Push(&r.heap, fragment{offset: first, vv: vv.Clone(nil)})
- consumed = vv.Size()
- r.size += consumed
+
+ break
+ }
+ if !holeFound {
+ // Incoming fragment is beyond end.
+ return buffer.VectorisedView{}, 0, false, 0, ErrFragmentConflict
}
// Check if all the holes have been filled and we are ready to reassemble.
if r.filled < len(r.holes) {
return buffer.VectorisedView{}, 0, false, consumed, nil
}
- res, err := r.heap.reassemble()
- if err != nil {
- return buffer.VectorisedView{}, 0, false, 0, fmt.Errorf("fragment reassembly failed: %w", err)
+
+ sort.Slice(r.holes, func(i, j int) bool {
+ return r.holes[i].first < r.holes[j].first
+ })
+
+ var size int
+ views := make([]buffer.View, 0, len(r.holes))
+ for _, hole := range r.holes {
+ views = append(views, hole.data)
+ size += hole.data.Size()
}
- return res, r.proto, true, consumed, nil
+ return buffer.NewVectorisedView(size, views), r.proto, true, consumed, nil
}
func (r *reassembler) checkDoneOrMark() bool {
diff --git a/pkg/tcpip/network/fragmentation/reassembler_test.go b/pkg/tcpip/network/fragmentation/reassembler_test.go
index cee3063b1..2ff03eeeb 100644
--- a/pkg/tcpip/network/fragmentation/reassembler_test.go
+++ b/pkg/tcpip/network/fragmentation/reassembler_test.go
@@ -19,105 +19,156 @@ import (
"testing"
"github.com/google/go-cmp/cmp"
+ "gvisor.dev/gvisor/pkg/tcpip/buffer"
"gvisor.dev/gvisor/pkg/tcpip/faketime"
+ "gvisor.dev/gvisor/pkg/tcpip/stack"
)
-type updateHolesParams struct {
+type processParams struct {
first uint16
last uint16
more bool
- wantUsed bool
+ pkt *stack.PacketBuffer
+ wantDone bool
wantError error
}
-func TestUpdateHoles(t *testing.T) {
+func TestReassemblerProcess(t *testing.T) {
+ const proto = 99
+
+ v := func(size int) buffer.View {
+ payload := buffer.NewView(size)
+ for i := 1; i < size; i++ {
+ payload[i] = uint8(i) * 3
+ }
+ return payload
+ }
+
+ pkt := func(size int) *stack.PacketBuffer {
+ return stack.NewPacketBuffer(stack.PacketBufferOptions{
+ Data: v(size).ToVectorisedView(),
+ })
+ }
+
var tests = []struct {
name string
- params []updateHolesParams
+ params []processParams
want []hole
}{
{
name: "No fragments",
params: nil,
- want: []hole{{first: 0, last: math.MaxUint16, filled: false}},
+ want: []hole{{first: 0, last: math.MaxUint16, filled: false, final: true}},
},
{
name: "One fragment at beginning",
- params: []updateHolesParams{{first: 0, last: 1, more: true, wantUsed: true, wantError: nil}},
+ params: []processParams{{first: 0, last: 1, more: true, pkt: pkt(2), wantDone: false, wantError: nil}},
want: []hole{
- {first: 0, last: 1, filled: true},
- {first: 2, last: math.MaxUint16, filled: false},
+ {first: 0, last: 1, filled: true, final: false, data: v(2)},
+ {first: 2, last: math.MaxUint16, filled: false, final: true},
},
},
{
name: "One fragment in the middle",
- params: []updateHolesParams{{first: 1, last: 2, more: true, wantUsed: true, wantError: nil}},
+ params: []processParams{{first: 1, last: 2, more: true, pkt: pkt(2), wantDone: false, wantError: nil}},
want: []hole{
- {first: 1, last: 2, filled: true},
- {first: 0, last: 0, filled: false},
- {first: 3, last: math.MaxUint16, filled: false},
+ {first: 1, last: 2, filled: true, final: false, data: v(2)},
+ {first: 0, last: 0, filled: false, final: false},
+ {first: 3, last: math.MaxUint16, filled: false, final: true},
},
},
{
name: "One fragment at the end",
- params: []updateHolesParams{{first: 1, last: 2, more: false, wantUsed: true, wantError: nil}},
+ params: []processParams{{first: 1, last: 2, more: false, pkt: pkt(2), wantDone: false, wantError: nil}},
want: []hole{
- {first: 1, last: 2, filled: true},
+ {first: 1, last: 2, filled: true, final: true, data: v(2)},
{first: 0, last: 0, filled: false},
},
},
{
name: "One fragment completing a packet",
- params: []updateHolesParams{{first: 0, last: 1, more: false, wantUsed: true, wantError: nil}},
+ params: []processParams{{first: 0, last: 1, more: false, pkt: pkt(2), wantDone: true, wantError: nil}},
want: []hole{
- {first: 0, last: 1, filled: true},
+ {first: 0, last: 1, filled: true, final: true, data: v(2)},
},
},
{
name: "Two fragments completing a packet",
- params: []updateHolesParams{
- {first: 0, last: 1, more: true, wantUsed: true, wantError: nil},
- {first: 2, last: 3, more: false, wantUsed: true, wantError: nil},
+ params: []processParams{
+ {first: 0, last: 1, more: true, pkt: pkt(2), wantDone: false, wantError: nil},
+ {first: 2, last: 3, more: false, pkt: pkt(2), wantDone: true, wantError: nil},
},
want: []hole{
- {first: 0, last: 1, filled: true},
- {first: 2, last: 3, filled: true},
+ {first: 0, last: 1, filled: true, final: false, data: v(2)},
+ {first: 2, last: 3, filled: true, final: true, data: v(2)},
},
},
{
name: "Two fragments completing a packet with a duplicate",
- params: []updateHolesParams{
- {first: 0, last: 1, more: true, wantUsed: true, wantError: nil},
- {first: 0, last: 1, more: true, wantUsed: false, wantError: nil},
- {first: 2, last: 3, more: false, wantUsed: true, wantError: nil},
+ params: []processParams{
+ {first: 0, last: 1, more: true, pkt: pkt(2), wantDone: false, wantError: nil},
+ {first: 0, last: 1, more: true, pkt: pkt(2), wantDone: false, wantError: nil},
+ {first: 2, last: 3, more: false, pkt: pkt(2), wantDone: true, wantError: nil},
+ },
+ want: []hole{
+ {first: 0, last: 1, filled: true, final: false, data: v(2)},
+ {first: 2, last: 3, filled: true, final: true, data: v(2)},
+ },
+ },
+ {
+ name: "Two fragments completing a packet with a partial duplicate",
+ params: []processParams{
+ {first: 0, last: 3, more: true, pkt: pkt(4), wantDone: false, wantError: nil},
+ {first: 1, last: 2, more: true, pkt: pkt(2), wantDone: false, wantError: nil},
+ {first: 4, last: 5, more: false, pkt: pkt(2), wantDone: true, wantError: nil},
},
want: []hole{
- {first: 0, last: 1, filled: true},
- {first: 2, last: 3, filled: true},
+ {first: 0, last: 3, filled: true, final: false, data: v(4)},
+ {first: 4, last: 5, filled: true, final: true, data: v(2)},
},
},
{
name: "Two overlapping fragments",
- params: []updateHolesParams{
- {first: 0, last: 10, more: true, wantUsed: true, wantError: nil},
- {first: 5, last: 15, more: false, wantUsed: false, wantError: ErrFragmentOverlap},
- {first: 11, last: 15, more: false, wantUsed: true, wantError: nil},
+ params: []processParams{
+ {first: 0, last: 10, more: true, pkt: pkt(11), wantDone: false, wantError: nil},
+ {first: 5, last: 15, more: false, pkt: pkt(11), wantDone: false, wantError: ErrFragmentOverlap},
+ },
+ want: []hole{
+ {first: 0, last: 10, filled: true, final: false, data: v(11)},
+ {first: 11, last: math.MaxUint16, filled: false, final: true},
+ },
+ },
+ {
+ name: "Two final fragments with different ends",
+ params: []processParams{
+ {first: 10, last: 14, more: false, pkt: pkt(5), wantDone: false, wantError: nil},
+ {first: 0, last: 9, more: false, pkt: pkt(10), wantDone: false, wantError: ErrFragmentConflict},
+ },
+ want: []hole{
+ {first: 10, last: 14, filled: true, final: true, data: v(5)},
+ {first: 0, last: 9, filled: false, final: false},
+ },
+ },
+ {
+ name: "Two final fragments - duplicate",
+ params: []processParams{
+ {first: 5, last: 14, more: false, pkt: pkt(10), wantDone: false, wantError: nil},
+ {first: 10, last: 14, more: false, pkt: pkt(5), wantDone: false, wantError: nil},
},
want: []hole{
- {first: 0, last: 10, filled: true},
- {first: 11, last: 15, filled: true},
+ {first: 5, last: 14, filled: true, final: true, data: v(10)},
+ {first: 0, last: 4, filled: false, final: false},
},
},
{
- name: "Out of bounds fragment",
- params: []updateHolesParams{
- {first: 0, last: 10, more: true, wantUsed: true, wantError: nil},
- {first: 11, last: 15, more: false, wantUsed: true, wantError: nil},
- {first: 16, last: 20, more: false, wantUsed: false, wantError: nil},
+ name: "Two final fragments - duplicate, with different ends",
+ params: []processParams{
+ {first: 5, last: 14, more: false, pkt: pkt(10), wantDone: false, wantError: nil},
+ {first: 10, last: 13, more: false, pkt: pkt(4), wantDone: false, wantError: ErrFragmentConflict},
},
want: []hole{
- {first: 0, last: 10, filled: true},
- {first: 11, last: 15, filled: true},
+ {first: 5, last: 14, filled: true, final: true, data: v(10)},
+ {first: 0, last: 4, filled: false, final: false},
},
},
}
@@ -126,9 +177,9 @@ func TestUpdateHoles(t *testing.T) {
t.Run(test.name, func(t *testing.T) {
r := newReassembler(FragmentID{}, &faketime.NullClock{})
for _, param := range test.params {
- used, err := r.updateHoles(param.first, param.last, param.more)
- if used != param.wantUsed || err != param.wantError {
- t.Errorf("got r.updateHoles(%d, %d, %t) = (%t, %v), want = (%t, %v)", param.first, param.last, param.more, used, err, param.wantUsed, param.wantError)
+ _, _, done, _, err := r.process(param.first, param.last, param.more, proto, param.pkt)
+ if done != param.wantDone || err != param.wantError {
+ t.Errorf("got r.process(%d, %d, %t, %d, _) = (_, _, %t, _, %v), want = (%t, %v)", param.first, param.last, param.more, proto, done, err, param.wantDone, param.wantError)
}
}
if diff := cmp.Diff(test.want, r.holes, cmp.AllowUnexported(hole{})); diff != "" {