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Test refactoring #87

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Test refactoring #87

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487c56e
test refactoring
apiresatos Dec 26, 2019
7437b8f
split test files
apiresatos Jan 13, 2020
e48e834
Merge branch 'master' into feature/test-refactoring
apiresatos Jan 13, 2020
b5306bc
merge master
apiresatos Jan 13, 2020
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123 changes: 123 additions & 0 deletions chain_test.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,123 @@
package nftables_test

import (
"testing"

"github.com/google/nftables"
)

func TestAddChain(t *testing.T) {
tests := []struct {
name string
chain *nftables.Chain
want [][]byte
}{
{
name: "Base chain",
chain: &nftables.Chain{
Name: "base-chain",
Hooknum: nftables.ChainHookPrerouting,
Priority: 0,
Type: nftables.ChainTypeFilter,
},
want: [][]byte{
// batch begin
[]byte("\x00\x00\x00\x0a"),
// nft add table ip filter
[]byte("\x02\x00\x00\x00\x0b\x00\x01\x00\x66\x69\x6c\x74\x65\x72\x00\x00\x08\x00\x02\x00\x00\x00\x00\x00"),
// nft add chain ip filter base-chain { type filter hook prerouting priority 0 \; }
[]byte("\x02\x00\x00\x00\x0b\x00\x01\x00\x66\x69\x6c\x74\x65\x72\x00\x00\x0f\x00\x03\x00\x62\x61\x73\x65\x2d\x63\x68\x61\x69\x6e\x00\x00\x14\x00\x04\x80\x08\x00\x01\x00\x00\x00\x00\x00\x08\x00\x02\x00\x00\x00\x00\x00\x0b\x00\x07\x00\x66\x69\x6c\x74\x65\x72\x00\x00"),
// batch end
[]byte("\x00\x00\x00\x0a"),
},
},
{
name: "Regular chain",
chain: &nftables.Chain{
Name: "regular-chain",
},
want: [][]byte{
// batch begin
[]byte("\x00\x00\x00\x0a"),
// nft add table ip filter
[]byte("\x02\x00\x00\x00\x0b\x00\x01\x00\x66\x69\x6c\x74\x65\x72\x00\x00\x08\x00\x02\x00\x00\x00\x00\x00"),
// nft add chain ip filter regular-chain
[]byte("\x02\x00\x00\x00\x0b\x00\x01\x00\x66\x69\x6c\x74\x65\x72\x00\x00\x12\x00\x03\x00\x72\x65\x67\x75\x6c\x61\x72\x2d\x63\x68\x61\x69\x6e\x00\x00\x00"),
// batch end
[]byte("\x00\x00\x00\x0a"),
},
},
}

for _, tt := range tests {
c := &nftables.Conn{
TestDial: CheckNLReq(t, tt.want, nil),
}

filter := c.AddTable(&nftables.Table{
Family: nftables.TableFamilyIPv4,
Name: "filter",
})

tt.chain.Table = filter
c.AddChain(tt.chain)
if err := c.Flush(); err != nil {
t.Fatal(err)
}
}
}

func TestDelChain(t *testing.T) {
tests := []struct {
name string
chain *nftables.Chain
want [][]byte
}{
{
name: "Base chain",
chain: &nftables.Chain{
Name: "base-chain",
Hooknum: nftables.ChainHookPrerouting,
Priority: 0,
Type: nftables.ChainTypeFilter,
},
want: [][]byte{
// batch begin
[]byte("\x00\x00\x00\x0a"),
// nft delete chain ip filter base-chain
[]byte("\x02\x00\x00\x00\x0b\x00\x01\x00\x66\x69\x6c\x74\x65\x72\x00\x00\x0f\x00\x03\x00\x62\x61\x73\x65\x2d\x63\x68\x61\x69\x6e\x00\x00"),
// batch end
[]byte("\x00\x00\x00\x0a"),
},
},
{
name: "Regular chain",
chain: &nftables.Chain{
Name: "regular-chain",
},
want: [][]byte{
// batch begin
[]byte("\x00\x00\x00\x0a"),
// nft delete chain ip filter regular-chain
[]byte("\x02\x00\x00\x00\x0b\x00\x01\x00\x66\x69\x6c\x74\x65\x72\x00\x00\x12\x00\x03\x00\x72\x65\x67\x75\x6c\x61\x72\x2d\x63\x68\x61\x69\x6e\x00\x00\x00"),
// batch end
[]byte("\x00\x00\x00\x0a"),
},
},
}

for _, tt := range tests {
c := &nftables.Conn{
TestDial: CheckNLReq(t, tt.want, nil),
}

tt.chain.Table = &nftables.Table{
Family: nftables.TableFamilyIPv4,
Name: "filter",
}
c.DelChain(tt.chain)
if err := c.Flush(); err != nil {
t.Fatal(err)
}
}
}
52 changes: 52 additions & 0 deletions counter_test.go
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package nftables_test

import (
"testing"

"github.com/google/nftables"
"github.com/google/nftables/expr"
)

func TestAddCounter(t *testing.T) {
// The want byte sequences come from stracing nft(8), e.g.:
// strace -f -v -x -s 2048 -eraw=sendto nft add table ip nat
//
// The nft(8) command sequence was taken from:
// https://wiki.nftables.org/wiki-nftables/index.php/Performing_Network_Address_Translation_(NAT)
want := [][]byte{
// batch begin
[]byte("\x00\x00\x00\x0a"),
// nft add counter ip filter fwded
[]byte("\x02\x00\x00\x00\x0b\x00\x01\x00\x66\x69\x6c\x74\x65\x72\x00\x00\x0a\x00\x02\x00\x66\x77\x64\x65\x64\x00\x00\x00\x08\x00\x03\x00\x00\x00\x00\x01\x1c\x00\x04\x80\x0c\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0c\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00"),
// nft add rule ip filter forward counter name fwded
[]byte("\x02\x00\x00\x00\x0b\x00\x01\x00\x66\x69\x6c\x74\x65\x72\x00\x00\x0c\x00\x02\x00\x66\x6f\x72\x77\x61\x72\x64\x00\x2c\x00\x04\x80\x28\x00\x01\x80\x0b\x00\x01\x00\x6f\x62\x6a\x72\x65\x66\x00\x00\x18\x00\x02\x80\x08\x00\x01\x00\x00\x00\x00\x01\x09\x00\x02\x00\x66\x77\x64\x65\x64\x00\x00\x00"),
// batch end
[]byte("\x00\x00\x00\x0a"),
}

c := &nftables.Conn{
TestDial: CheckNLReq(t, want, nil),
}

c.AddObj(&nftables.CounterObj{
Table: &nftables.Table{Name: "filter", Family: nftables.TableFamilyIPv4},
Name: "fwded",
Bytes: 0,
Packets: 0,
})

c.AddRule(&nftables.Rule{
Table: &nftables.Table{Name: "filter", Family: nftables.TableFamilyIPv4},
Chain: &nftables.Chain{Name: "forward", Type: nftables.ChainTypeFilter},
Exprs: []expr.Any{
&expr.Objref{
Type: 1,
Name: "fwded",
},
},
})

if err := c.Flush(); err != nil {
t.Fatal(err)
}
}
82 changes: 82 additions & 0 deletions expr/ct_test.go
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@@ -0,0 +1,82 @@
package expr_test

import (
"testing"

"github.com/google/nftables"
"github.com/google/nftables/binaryutil"
"github.com/google/nftables/expr"
"golang.org/x/sys/unix"
)

func TestCt(t *testing.T) {
want := [][]byte{
// batch begin
[]byte("\x00\x00\x00\x0a"),
// sudo nft add rule ipv4table ipv4chain-5 ct mark 123 counter
[]byte("\x02\x00\x00\x00\x0e\x00\x01\x00\x69\x70\x76\x34\x74\x61\x62\x6c\x65\x00\x00\x00\x10\x00\x02\x00\x69\x70\x76\x34\x63\x68\x61\x69\x6e\x2d\x35\x00\x24\x00\x04\x80\x20\x00\x01\x80\x07\x00\x01\x00\x63\x74\x00\x00\x14\x00\x02\x80\x08\x00\x02\x00\x00\x00\x00\x03\x08\x00\x01\x00\x00\x00\x00\x01"),
// batch end
[]byte("\x00\x00\x00\x0a"),
}

c := &nftables.Conn{
TestDial: CheckNLReq(t, want, nil),
}

c.AddRule(&nftables.Rule{
Table: &nftables.Table{Name: "ipv4table", Family: nftables.TableFamilyIPv4},
Chain: &nftables.Chain{
Name: "ipv4chain-5",
},
Exprs: []expr.Any{
// [ ct load mark => reg 1 ]
&expr.Ct{
Key: unix.NFT_CT_MARK,
Register: 1,
},
},
})

if err := c.Flush(); err != nil {
t.Fatal(err)
}
}

func TestCtSet(t *testing.T) {
want := [][]byte{
// batch begin
[]byte("\x00\x00\x00\x0a"),
// sudo nft add rule filter forward ct mark set 1
[]byte("\x02\x00\x00\x00\x0b\x00\x01\x00\x66\x69\x6c\x74\x65\x72\x00\x00\x0c\x00\x02\x00\x66\x6f\x72\x77\x61\x72\x64\x00\x50\x00\x04\x80\x2c\x00\x01\x80\x0e\x00\x01\x00\x69\x6d\x6d\x65\x64\x69\x61\x74\x65\x00\x00\x00\x18\x00\x02\x80\x08\x00\x01\x00\x00\x00\x00\x01\x0c\x00\x02\x80\x08\x00\x01\x00\x01\x00\x00\x00\x20\x00\x01\x80\x07\x00\x01\x00\x63\x74\x00\x00\x14\x00\x02\x80\x08\x00\x02\x00\x00\x00\x00\x03\x08\x00\x04\x00\x00\x00\x00\x01"),
// batch end
[]byte("\x00\x00\x00\x0a"),
}

c := &nftables.Conn{
TestDial: CheckNLReq(t, want, nil),
}

c.AddRule(&nftables.Rule{
Table: &nftables.Table{Name: "filter", Family: nftables.TableFamilyIPv4},
Chain: &nftables.Chain{
Name: "forward",
},
Exprs: []expr.Any{
// [ immediate reg 1 0x00000001 ]
&expr.Immediate{
Register: 1,
Data: binaryutil.NativeEndian.PutUint32(1),
},
// [ ct set mark with reg 1 ]
&expr.Ct{
Key: expr.CtKeyMARK,
Register: 1,
SourceRegister: true,
},
},
})

if err := c.Flush(); err != nil {
t.Fatal(err)
}
}
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