diff options
Diffstat (limited to 'pkg/tcpip/header/ipv6_test.go')
| -rw-r--r-- | pkg/tcpip/header/ipv6_test.go | 417 |
1 files changed, 0 insertions, 417 deletions
diff --git a/pkg/tcpip/header/ipv6_test.go b/pkg/tcpip/header/ipv6_test.go deleted file mode 100644 index 426a873b1..000000000 --- a/pkg/tcpip/header/ipv6_test.go +++ /dev/null @@ -1,417 +0,0 @@ -// Copyright 2019 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 header_test - -import ( - "bytes" - "crypto/sha256" - "fmt" - "testing" - - "github.com/google/go-cmp/cmp" - "gvisor.dev/gvisor/pkg/rand" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -const ( - linkAddr = tcpip.LinkAddress("\x02\x02\x03\x04\x05\x06") - linkLocalAddr = tcpip.Address("\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01") - linkLocalMulticastAddr = tcpip.Address("\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01") - uniqueLocalAddr1 = tcpip.Address("\xfc\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01") - uniqueLocalAddr2 = tcpip.Address("\xfd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02") - globalAddr = tcpip.Address("\xa0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01") -) - -func TestEthernetAdddressToModifiedEUI64(t *testing.T) { - expectedIID := [header.IIDSize]byte{0, 2, 3, 255, 254, 4, 5, 6} - - if diff := cmp.Diff(expectedIID, header.EthernetAddressToModifiedEUI64(linkAddr)); diff != "" { - t.Errorf("EthernetAddressToModifiedEUI64(%s) mismatch (-want +got):\n%s", linkAddr, diff) - } - - var buf [header.IIDSize]byte - header.EthernetAdddressToModifiedEUI64IntoBuf(linkAddr, buf[:]) - if diff := cmp.Diff(expectedIID, buf); diff != "" { - t.Errorf("EthernetAddressToModifiedEUI64IntoBuf(%s, _) mismatch (-want +got):\n%s", linkAddr, diff) - } -} - -func TestLinkLocalAddr(t *testing.T) { - if got, want := header.LinkLocalAddr(linkAddr), tcpip.Address("\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x02\x03\xff\xfe\x04\x05\x06"); got != want { - t.Errorf("got LinkLocalAddr(%s) = %s, want = %s", linkAddr, got, want) - } -} - -func TestAppendOpaqueInterfaceIdentifier(t *testing.T) { - var secretKeyBuf [header.OpaqueIIDSecretKeyMinBytes * 2]byte - if n, err := rand.Read(secretKeyBuf[:]); err != nil { - t.Fatalf("rand.Read(_): %s", err) - } else if want := header.OpaqueIIDSecretKeyMinBytes * 2; n != want { - t.Fatalf("expected rand.Read to read %d bytes, read %d bytes", want, n) - } - - tests := []struct { - name string - prefix tcpip.Subnet - nicName string - dadCounter uint8 - secretKey []byte - }{ - { - name: "SecretKey of minimum size", - prefix: header.IPv6LinkLocalPrefix.Subnet(), - nicName: "eth0", - dadCounter: 0, - secretKey: secretKeyBuf[:header.OpaqueIIDSecretKeyMinBytes], - }, - { - name: "SecretKey of less than minimum size", - prefix: func() tcpip.Subnet { - addrWithPrefix := tcpip.AddressWithPrefix{ - Address: "\x01\x02\x03\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", - PrefixLen: header.IIDOffsetInIPv6Address * 8, - } - return addrWithPrefix.Subnet() - }(), - nicName: "eth10", - dadCounter: 1, - secretKey: secretKeyBuf[:header.OpaqueIIDSecretKeyMinBytes/2], - }, - { - name: "SecretKey of more than minimum size", - prefix: func() tcpip.Subnet { - addrWithPrefix := tcpip.AddressWithPrefix{ - Address: "\x01\x02\x03\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", - PrefixLen: header.IIDOffsetInIPv6Address * 8, - } - return addrWithPrefix.Subnet() - }(), - nicName: "eth11", - dadCounter: 2, - secretKey: secretKeyBuf[:header.OpaqueIIDSecretKeyMinBytes*2], - }, - { - name: "Nil SecretKey and empty nicName", - prefix: func() tcpip.Subnet { - addrWithPrefix := tcpip.AddressWithPrefix{ - Address: "\x01\x02\x03\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", - PrefixLen: header.IIDOffsetInIPv6Address * 8, - } - return addrWithPrefix.Subnet() - }(), - nicName: "", - dadCounter: 3, - secretKey: nil, - }, - } - - for _, test := range tests { - t.Run(test.name, func(t *testing.T) { - h := sha256.New() - h.Write([]byte(test.prefix.ID()[:header.IIDOffsetInIPv6Address])) - h.Write([]byte(test.nicName)) - h.Write([]byte{test.dadCounter}) - if k := test.secretKey; k != nil { - h.Write(k) - } - var hashSum [sha256.Size]byte - h.Sum(hashSum[:0]) - want := hashSum[:header.IIDSize] - - // Passing a nil buffer should result in a new buffer returned with the - // IID. - if got := header.AppendOpaqueInterfaceIdentifier(nil, test.prefix, test.nicName, test.dadCounter, test.secretKey); !bytes.Equal(got, want) { - t.Errorf("got AppendOpaqueInterfaceIdentifier(nil, %s, %s, %d, %x) = %x, want = %x", test.prefix, test.nicName, test.dadCounter, test.secretKey, got, want) - } - - // Passing a buffer with sufficient capacity for the IID should populate - // the buffer provided. - var iidBuf [header.IIDSize]byte - if got := header.AppendOpaqueInterfaceIdentifier(iidBuf[:0], test.prefix, test.nicName, test.dadCounter, test.secretKey); !bytes.Equal(got, want) { - t.Errorf("got AppendOpaqueInterfaceIdentifier(iidBuf[:0], %s, %s, %d, %x) = %x, want = %x", test.prefix, test.nicName, test.dadCounter, test.secretKey, got, want) - } - if got := iidBuf[:]; !bytes.Equal(got, want) { - t.Errorf("got iidBuf = %x, want = %x", got, want) - } - }) - } -} - -func TestLinkLocalAddrWithOpaqueIID(t *testing.T) { - var secretKeyBuf [header.OpaqueIIDSecretKeyMinBytes * 2]byte - if n, err := rand.Read(secretKeyBuf[:]); err != nil { - t.Fatalf("rand.Read(_): %s", err) - } else if want := header.OpaqueIIDSecretKeyMinBytes * 2; n != want { - t.Fatalf("expected rand.Read to read %d bytes, read %d bytes", want, n) - } - - prefix := header.IPv6LinkLocalPrefix.Subnet() - - tests := []struct { - name string - prefix tcpip.Subnet - nicName string - dadCounter uint8 - secretKey []byte - }{ - { - name: "SecretKey of minimum size", - nicName: "eth0", - dadCounter: 0, - secretKey: secretKeyBuf[:header.OpaqueIIDSecretKeyMinBytes], - }, - { - name: "SecretKey of less than minimum size", - nicName: "eth10", - dadCounter: 1, - secretKey: secretKeyBuf[:header.OpaqueIIDSecretKeyMinBytes/2], - }, - { - name: "SecretKey of more than minimum size", - nicName: "eth11", - dadCounter: 2, - secretKey: secretKeyBuf[:header.OpaqueIIDSecretKeyMinBytes*2], - }, - { - name: "Nil SecretKey and empty nicName", - nicName: "", - dadCounter: 3, - secretKey: nil, - }, - } - - for _, test := range tests { - t.Run(test.name, func(t *testing.T) { - addrBytes := [header.IPv6AddressSize]byte{ - 0: 0xFE, - 1: 0x80, - } - - want := tcpip.Address(header.AppendOpaqueInterfaceIdentifier( - addrBytes[:header.IIDOffsetInIPv6Address], - prefix, - test.nicName, - test.dadCounter, - test.secretKey, - )) - - if got := header.LinkLocalAddrWithOpaqueIID(test.nicName, test.dadCounter, test.secretKey); got != want { - t.Errorf("got LinkLocalAddrWithOpaqueIID(%s, %d, %x) = %s, want = %s", test.nicName, test.dadCounter, test.secretKey, got, want) - } - }) - } -} - -func TestIsV6UniqueLocalAddress(t *testing.T) { - tests := []struct { - name string - addr tcpip.Address - expected bool - }{ - { - name: "Valid Unique 1", - addr: uniqueLocalAddr1, - expected: true, - }, - { - name: "Valid Unique 2", - addr: uniqueLocalAddr1, - expected: true, - }, - { - name: "Link Local", - addr: linkLocalAddr, - expected: false, - }, - { - name: "Global", - addr: globalAddr, - expected: false, - }, - { - name: "IPv4", - addr: "\x01\x02\x03\x04", - expected: false, - }, - } - - for _, test := range tests { - t.Run(test.name, func(t *testing.T) { - if got := header.IsV6UniqueLocalAddress(test.addr); got != test.expected { - t.Errorf("got header.IsV6UniqueLocalAddress(%s) = %t, want = %t", test.addr, got, test.expected) - } - }) - } -} - -func TestIsV6LinkLocalMulticastAddress(t *testing.T) { - tests := []struct { - name string - addr tcpip.Address - expected bool - }{ - { - name: "Valid Link Local Multicast", - addr: linkLocalMulticastAddr, - expected: true, - }, - { - name: "Valid Link Local Multicast with flags", - addr: "\xff\xf2\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01", - expected: true, - }, - { - name: "Link Local Unicast", - addr: linkLocalAddr, - expected: false, - }, - { - name: "IPv4 Multicast", - addr: "\xe0\x00\x00\x01", - expected: false, - }, - } - - for _, test := range tests { - t.Run(test.name, func(t *testing.T) { - if got := header.IsV6LinkLocalMulticastAddress(test.addr); got != test.expected { - t.Errorf("got header.IsV6LinkLocalMulticastAddress(%s) = %t, want = %t", test.addr, got, test.expected) - } - }) - } -} - -func TestIsV6LinkLocalAddress(t *testing.T) { - tests := []struct { - name string - addr tcpip.Address - expected bool - }{ - { - name: "Valid Link Local Unicast", - addr: linkLocalAddr, - expected: true, - }, - { - name: "Link Local Multicast", - addr: linkLocalMulticastAddr, - expected: false, - }, - { - name: "Unique Local", - addr: uniqueLocalAddr1, - expected: false, - }, - { - name: "Global", - addr: globalAddr, - expected: false, - }, - { - name: "IPv4 Link Local", - addr: "\xa9\xfe\x00\x01", - expected: false, - }, - } - - for _, test := range tests { - t.Run(test.name, func(t *testing.T) { - if got := header.IsV6LinkLocalAddress(test.addr); got != test.expected { - t.Errorf("got header.IsV6LinkLocalAddress(%s) = %t, want = %t", test.addr, got, test.expected) - } - }) - } -} - -func TestScopeForIPv6Address(t *testing.T) { - tests := []struct { - name string - addr tcpip.Address - scope header.IPv6AddressScope - err *tcpip.Error - }{ - { - name: "Unique Local", - addr: uniqueLocalAddr1, - scope: header.UniqueLocalScope, - err: nil, - }, - { - name: "Link Local Unicast", - addr: linkLocalAddr, - scope: header.LinkLocalScope, - err: nil, - }, - { - name: "Link Local Multicast", - addr: linkLocalMulticastAddr, - scope: header.LinkLocalScope, - err: nil, - }, - { - name: "Global", - addr: globalAddr, - scope: header.GlobalScope, - err: nil, - }, - { - name: "IPv4", - addr: "\x01\x02\x03\x04", - scope: header.GlobalScope, - err: tcpip.ErrBadAddress, - }, - } - - for _, test := range tests { - t.Run(test.name, func(t *testing.T) { - got, err := header.ScopeForIPv6Address(test.addr) - if err != test.err { - t.Errorf("got header.IsV6UniqueLocalAddress(%s) = (_, %v), want = (_, %v)", test.addr, err, test.err) - } - if got != test.scope { - t.Errorf("got header.IsV6UniqueLocalAddress(%s) = (%d, _), want = (%d, _)", test.addr, got, test.scope) - } - }) - } -} - -func TestSolicitedNodeAddr(t *testing.T) { - tests := []struct { - addr tcpip.Address - want tcpip.Address - }{ - { - addr: "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\xa0", - want: "\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\x0e\x0f\xa0", - }, - { - addr: "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\xdd\x0e\x0f\xa0", - want: "\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\x0e\x0f\xa0", - }, - { - addr: "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\xdd\x01\x02\x03", - want: "\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\x01\x02\x03", - }, - } - - for _, test := range tests { - t.Run(fmt.Sprintf("%s", test.addr), func(t *testing.T) { - if got := header.SolicitedNodeAddr(test.addr); got != test.want { - t.Fatalf("got header.SolicitedNodeAddr(%s) = %s, want = %s", test.addr, got, test.want) - } - }) - } -} |