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package seccomp_test
import (
"crypto/sha512"
"errors"
"io"
"slices"
"syscall"
"testing"
"git.gensokyo.uk/security/fortify/seccomp"
)
func TestExport(t *testing.T) {
testCases := []struct {
name string
opts seccomp.SyscallOpts
want []byte
wantErr bool
}{
{"compat", 0, []byte{
0x95, 0xec, 0x69, 0xd0, 0x17, 0x73, 0x3e, 0x07,
0x21, 0x60, 0xe0, 0xda, 0x80, 0xfd, 0xeb, 0xec,
0xdf, 0x27, 0xae, 0x81, 0x66, 0xf5, 0xe2, 0xa7,
0x31, 0x27, 0x0c, 0x98, 0xea, 0x2d, 0x29, 0x46,
0xcb, 0x52, 0x31, 0x02, 0x90, 0x63, 0x66, 0x8a,
0xf2, 0x15, 0x87, 0x91, 0x55, 0xda, 0x21, 0xac,
0xa7, 0x9b, 0x07, 0x0e, 0x04, 0xc0, 0xee, 0x9a,
0xcd, 0xf5, 0x8f, 0x55, 0xcf, 0xa8, 0x15, 0xa5,
}, false},
{"base", seccomp.FlagExt, []byte{
0xdc, 0x7f, 0x2e, 0x1c, 0x5e, 0x82, 0x9b, 0x79,
0xeb, 0xb7, 0xef, 0xc7, 0x59, 0x15, 0x0f, 0x54,
0xa8, 0x3a, 0x75, 0xc8, 0xdf, 0x6f, 0xee, 0x4d,
0xce, 0x5d, 0xad, 0xc4, 0x73, 0x6c, 0x58, 0x5d,
0x4d, 0xee, 0xbf, 0xeb, 0x3c, 0x79, 0x69, 0xaf,
0x3a, 0x07, 0x7e, 0x90, 0xb7, 0x7b, 0xb4, 0x74,
0x1d, 0xb0, 0x5d, 0x90, 0x99, 0x7c, 0x86, 0x59,
0xb9, 0x58, 0x91, 0x20, 0x6a, 0xc9, 0x95, 0x2d,
}, false},
{"everything", seccomp.FlagExt |
seccomp.FlagDenyNS | seccomp.FlagDenyTTY | seccomp.FlagDenyDevel |
seccomp.FlagMultiarch | seccomp.FlagLinux32 | seccomp.FlagCan |
seccomp.FlagBluetooth, []byte{
0xe9, 0x9d, 0xd3, 0x45, 0xe1, 0x95, 0x41, 0x34,
0x73, 0xd3, 0xcb, 0xee, 0x07, 0xb4, 0xed, 0x57,
0xb9, 0x08, 0xbf, 0xa8, 0x9e, 0xa2, 0x07, 0x2f,
0xe9, 0x34, 0x82, 0x84, 0x7f, 0x50, 0xb5, 0xb7,
0x58, 0xda, 0x17, 0xe7, 0x4c, 0xa2, 0xbb, 0xc0,
0x08, 0x13, 0xde, 0x49, 0xa2, 0xb9, 0xbf, 0x83,
0x4c, 0x02, 0x4e, 0xd4, 0x88, 0x50, 0xbe, 0x69,
0xb6, 0x8a, 0x9a, 0x4c, 0x5f, 0x53, 0xa9, 0xdb,
}, false},
{"strict", seccomp.FlagExt |
seccomp.FlagDenyNS | seccomp.FlagDenyTTY | seccomp.FlagDenyDevel, []byte{
0xe8, 0x80, 0x29, 0x8d, 0xf2, 0xbd, 0x67, 0x51,
0xd0, 0x04, 0x0f, 0xc2, 0x1b, 0xc0, 0xed, 0x4c,
0x00, 0xf9, 0x5d, 0xc0, 0xd7, 0xba, 0x50, 0x6c,
0x24, 0x4d, 0x8b, 0x8c, 0xf6, 0x86, 0x6d, 0xba,
0x8e, 0xf4, 0xa3, 0x32, 0x96, 0xf2, 0x87, 0xb6,
0x6c, 0xcc, 0xc1, 0xd7, 0x8e, 0x97, 0x02, 0x65,
0x97, 0xf8, 0x4c, 0xc7, 0xde, 0xc1, 0x57, 0x3e,
0x14, 0x89, 0x60, 0xfb, 0xd3, 0x5c, 0xd7, 0x35,
}, false},
{"strict compat", 0 |
seccomp.FlagDenyNS | seccomp.FlagDenyTTY | seccomp.FlagDenyDevel, []byte{
0x39, 0x87, 0x1b, 0x93, 0xff, 0xaf, 0xc8, 0xb9,
0x79, 0xfc, 0xed, 0xc0, 0xb0, 0xc3, 0x7b, 0x9e,
0x03, 0x92, 0x2f, 0x5b, 0x02, 0x74, 0x8d, 0xc5,
0xc3, 0xc1, 0x7c, 0x92, 0x52, 0x7f, 0x6e, 0x02,
0x2e, 0xde, 0x1f, 0x48, 0xbf, 0xf5, 0x92, 0x46,
0xea, 0x45, 0x2c, 0x0d, 0x1d, 0xe5, 0x48, 0x27,
0x80, 0x8b, 0x1a, 0x6f, 0x84, 0xf3, 0x2b, 0xbd,
0xe1, 0xaa, 0x02, 0xae, 0x30, 0xee, 0xdc, 0xfa,
}, false},
}
buf := make([]byte, 8)
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
oldF := seccomp.GetOutput()
seccomp.SetOutput(t.Log)
t.Cleanup(func() { seccomp.SetOutput(oldF) })
e := seccomp.New(tc.opts)
digest := sha512.New()
if _, err := io.CopyBuffer(digest, e, buf); (err != nil) != tc.wantErr {
t.Errorf("Exporter: error = %v, wantErr %v", err, tc.wantErr)
return
}
if err := e.Close(); err != nil {
t.Errorf("Close: error = %v", err)
return
}
if got := digest.Sum(nil); slices.Compare(got, tc.want) != 0 {
t.Fatalf("Export() hash = %x, want %x",
got, tc.want)
return
}
})
}
t.Run("close without use", func(t *testing.T) {
e := seccomp.New(0)
if err := e.Close(); !errors.Is(err, syscall.EINVAL) {
t.Errorf("Close: error = %v", err)
return
}
})
t.Run("close partial read", func(t *testing.T) {
e := seccomp.New(0)
if _, err := e.Read(make([]byte, 0)); err != nil {
t.Errorf("Read: error = %v", err)
return
}
if err := e.Close(); err == nil || !errors.Is(err, syscall.ECANCELED) || !errors.Is(err, syscall.EBADF) {
t.Errorf("Close: error = %v", err)
return
}
})
}
func BenchmarkExport(b *testing.B) {
buf := make([]byte, 8)
for i := 0; i < b.N; i++ {
e := seccomp.New(seccomp.FlagExt |
seccomp.FlagDenyNS | seccomp.FlagDenyTTY | seccomp.FlagDenyDevel |
seccomp.FlagMultiarch | seccomp.FlagLinux32 | seccomp.FlagCan |
seccomp.FlagBluetooth)
if _, err := io.CopyBuffer(io.Discard, e, buf); err != nil {
b.Fatalf("cannot export: %v", err)
}
if err := e.Close(); err != nil {
b.Fatalf("cannot close exporter: %v", err)
}
}
}
|
