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-rw-r--r--test/packetimpact/tests/ipv4_fragment_reassembly_test.go65
-rw-r--r--test/packetimpact/tests/ipv6_fragment_reassembly_test.go52
2 files changed, 99 insertions, 18 deletions
diff --git a/test/packetimpact/tests/ipv4_fragment_reassembly_test.go b/test/packetimpact/tests/ipv4_fragment_reassembly_test.go
index e00a7aba2..d2203082d 100644
--- a/test/packetimpact/tests/ipv4_fragment_reassembly_test.go
+++ b/test/packetimpact/tests/ipv4_fragment_reassembly_test.go
@@ -34,10 +34,10 @@ type fragmentInfo struct {
offset uint16
size uint16
more uint8
+ id uint16
}
func TestIPv4FragmentReassembly(t *testing.T) {
- const fragmentID = 42
icmpv4ProtoNum := uint8(header.ICMPv4ProtocolNumber)
tests := []struct {
@@ -45,28 +45,75 @@ func TestIPv4FragmentReassembly(t *testing.T) {
ipPayloadLen int
fragments []fragmentInfo
expectReply bool
+ skip bool
+ skipReason string
}{
{
description: "basic reassembly",
- ipPayloadLen: 2000,
+ ipPayloadLen: 3000,
fragments: []fragmentInfo{
- {offset: 0, size: 1000, more: header.IPv4FlagMoreFragments},
- {offset: 1000, size: 1000, more: 0},
+ {offset: 0, size: 1000, id: 5, more: header.IPv4FlagMoreFragments},
+ {offset: 1000, size: 1000, id: 5, more: header.IPv4FlagMoreFragments},
+ {offset: 2000, size: 1000, id: 5, more: 0},
},
expectReply: true,
},
{
description: "out of order fragments",
- ipPayloadLen: 2000,
+ ipPayloadLen: 3000,
fragments: []fragmentInfo{
- {offset: 1000, size: 1000, more: 0},
- {offset: 0, size: 1000, more: header.IPv4FlagMoreFragments},
+ {offset: 2000, size: 1000, id: 6, more: 0},
+ {offset: 0, size: 1000, id: 6, more: header.IPv4FlagMoreFragments},
+ {offset: 1000, size: 1000, id: 6, more: header.IPv4FlagMoreFragments},
},
expectReply: true,
},
+ {
+ description: "duplicated fragments",
+ ipPayloadLen: 3000,
+ fragments: []fragmentInfo{
+ {offset: 0, size: 1000, id: 7, more: header.IPv4FlagMoreFragments},
+ {offset: 1000, size: 1000, id: 7, more: header.IPv4FlagMoreFragments},
+ {offset: 1000, size: 1000, id: 7, more: header.IPv4FlagMoreFragments},
+ {offset: 2000, size: 1000, id: 7, more: 0},
+ },
+ expectReply: true,
+ skip: true,
+ skipReason: "gvisor.dev/issues/4971",
+ },
+ {
+ description: "fragment subset",
+ ipPayloadLen: 3000,
+ fragments: []fragmentInfo{
+ {offset: 0, size: 1000, id: 8, more: header.IPv4FlagMoreFragments},
+ {offset: 1000, size: 1000, id: 8, more: header.IPv4FlagMoreFragments},
+ {offset: 512, size: 256, id: 8, more: header.IPv4FlagMoreFragments},
+ {offset: 2000, size: 1000, id: 8, more: 0},
+ },
+ expectReply: true,
+ skip: true,
+ skipReason: "gvisor.dev/issues/4971",
+ },
+ {
+ description: "fragment overlap",
+ ipPayloadLen: 3000,
+ fragments: []fragmentInfo{
+ {offset: 0, size: 1000, id: 9, more: header.IPv4FlagMoreFragments},
+ {offset: 1512, size: 1000, id: 9, more: header.IPv4FlagMoreFragments},
+ {offset: 1000, size: 1000, id: 9, more: header.IPv4FlagMoreFragments},
+ {offset: 2000, size: 1000, id: 9, more: 0},
+ },
+ expectReply: false,
+ skip: true,
+ skipReason: "gvisor.dev/issues/4971",
+ },
}
for _, test := range tests {
+ if test.skip {
+ t.Skip("%s test skipped: %s", test.description, test.skipReason)
+ continue
+ }
t.Run(test.description, func(t *testing.T) {
dut := testbench.NewDUT(t)
conn := dut.Net.NewIPv4Conn(t, testbench.IPv4{}, testbench.IPv4{})
@@ -95,7 +142,7 @@ func TestIPv4FragmentReassembly(t *testing.T) {
Protocol: &icmpv4ProtoNum,
FragmentOffset: testbench.Uint16(fragment.offset),
Flags: testbench.Uint8(fragment.more),
- ID: testbench.Uint16(fragmentID),
+ ID: testbench.Uint16(fragment.id),
},
&testbench.Payload{
Bytes: data[fragment.offset:][:fragment.size],
@@ -114,7 +161,7 @@ func TestIPv4FragmentReassembly(t *testing.T) {
}, time.Second)
if err != nil {
// Either an unexpected frame was received, or none at all.
- if bytesReceived < test.ipPayloadLen {
+ if test.expectReply && bytesReceived < test.ipPayloadLen {
t.Fatalf("received %d bytes out of %d, then conn.ExpectFrame(_, _, time.Second) failed with %s", bytesReceived, test.ipPayloadLen, err)
}
break
diff --git a/test/packetimpact/tests/ipv6_fragment_reassembly_test.go b/test/packetimpact/tests/ipv6_fragment_reassembly_test.go
index 65f742f55..dd98ee7a1 100644
--- a/test/packetimpact/tests/ipv6_fragment_reassembly_test.go
+++ b/test/packetimpact/tests/ipv6_fragment_reassembly_test.go
@@ -35,10 +35,10 @@ type fragmentInfo struct {
offset uint16
size uint16
more bool
+ id uint32
}
func TestIPv6FragmentReassembly(t *testing.T) {
- const fragmentID = 42
icmpv6ProtoNum := header.IPv6ExtensionHeaderIdentifier(header.ICMPv6ProtocolNumber)
tests := []struct {
@@ -49,10 +49,11 @@ func TestIPv6FragmentReassembly(t *testing.T) {
}{
{
description: "basic reassembly",
- ipPayloadLen: 1500,
+ ipPayloadLen: 3000,
fragments: []fragmentInfo{
- {offset: 0, size: 760, more: true},
- {offset: 760, size: 740, more: false},
+ {offset: 0, size: 1000, id: 100, more: true},
+ {offset: 1000, size: 1000, id: 100, more: true},
+ {offset: 2000, size: 1000, id: 100, more: false},
},
expectReply: true,
},
@@ -60,12 +61,45 @@ func TestIPv6FragmentReassembly(t *testing.T) {
description: "out of order fragments",
ipPayloadLen: 3000,
fragments: []fragmentInfo{
- {offset: 0, size: 1024, more: true},
- {offset: 2048, size: 952, more: false},
- {offset: 1024, size: 1024, more: true},
+ {offset: 0, size: 1000, id: 101, more: true},
+ {offset: 2000, size: 1000, id: 101, more: false},
+ {offset: 1000, size: 1000, id: 101, more: true},
+ },
+ expectReply: true,
+ },
+ {
+ description: "duplicated fragments",
+ ipPayloadLen: 3000,
+ fragments: []fragmentInfo{
+ {offset: 0, size: 1000, id: 102, more: true},
+ {offset: 1000, size: 1000, id: 102, more: true},
+ {offset: 1000, size: 1000, id: 102, more: true},
+ {offset: 2000, size: 1000, id: 102, more: false},
+ },
+ expectReply: true,
+ },
+ {
+ description: "fragment subset",
+ ipPayloadLen: 3000,
+ fragments: []fragmentInfo{
+ {offset: 0, size: 1000, id: 103, more: true},
+ {offset: 1000, size: 1000, id: 103, more: true},
+ {offset: 512, size: 256, id: 103, more: true},
+ {offset: 2000, size: 1000, id: 103, more: false},
},
expectReply: true,
},
+ {
+ description: "fragment overlap",
+ ipPayloadLen: 3000,
+ fragments: []fragmentInfo{
+ {offset: 0, size: 1000, id: 104, more: true},
+ {offset: 1512, size: 1000, id: 104, more: true},
+ {offset: 1000, size: 1000, id: 104, more: true},
+ {offset: 2000, size: 1000, id: 104, more: false},
+ },
+ expectReply: false,
+ },
}
for _, test := range tests {
@@ -101,7 +135,7 @@ func TestIPv6FragmentReassembly(t *testing.T) {
NextHeader: &icmpv6ProtoNum,
FragmentOffset: testbench.Uint16(fragment.offset / header.IPv6FragmentExtHdrFragmentOffsetBytesPerUnit),
MoreFragments: testbench.Bool(fragment.more),
- Identification: testbench.Uint32(fragmentID),
+ Identification: testbench.Uint32(fragment.id),
},
&testbench.Payload{
Bytes: data[fragment.offset:][:fragment.size],
@@ -118,7 +152,7 @@ func TestIPv6FragmentReassembly(t *testing.T) {
}, time.Second)
if err != nil {
// Either an unexpected frame was received, or none at all.
- if bytesReceived < test.ipPayloadLen {
+ if test.expectReply && bytesReceived < test.ipPayloadLen {
t.Fatalf("received %d bytes out of %d, then conn.ExpectFrame(_, _, time.Second) failed with %s", bytesReceived, test.ipPayloadLen, err)
}
break
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 14:03:08 +0000