syzkaller/prog/any_test.go
Dmitry Vyukov a4d38b39a8 prog: support disabled attribute
Update #477
Update #502
2020-05-04 20:56:20 +02:00

84 lines
2.3 KiB
Go

// Copyright 2018 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
package prog
import (
"fmt"
"sort"
"strings"
"testing"
)
func TestIsComplexPtr(t *testing.T) {
target, rs, _ := initRandomTargetTest(t, "linux", "amd64")
ct := target.DefaultChoiceTable()
iters := 10
if testing.Short() {
iters = 1
}
r := newRand(target, rs)
compl := make(map[string]bool)
for _, meta := range target.Syscalls {
if meta.Attrs.Disabled {
continue
}
for i := 0; i < iters; i++ {
s := newState(target, ct, nil)
calls := r.generateParticularCall(s, meta)
p := &Prog{Target: target, Calls: calls}
for _, arg := range p.complexPtrs() {
compl[arg.Res.Type().String()] = true
}
}
}
var arr []string
for id := range compl {
arr = append(arr, id)
}
sort.Strings(arr)
t.Log("complex types:\n" + strings.Join(arr, "\n"))
}
func TestSquash(t *testing.T) {
target := initTargetTest(t, "test", "64")
// nolint: lll
tests := []struct {
prog string
squashed string
}{
{
`foo$any0(&(0x7f0000000000)={0x11, 0x11223344, 0x2233, 0x1122334455667788, {0x1, 0x7, 0x1, 0x1, 0x1bc, 0x4}, [{@res32=0x0, @i8=0x44, "aabb"}, {@res64=0x1, @i32=0x11223344, "1122334455667788"}]})`,
`foo$any0(&(0x7f0000000000)=ANY=[@ANYBLOB="1100000044332211223300000000000088776655443322117d00bc11", @ANYRES32=0x0, @ANYBLOB="0000000044aabb00", @ANYRES64=0x1, @ANYBLOB="44332211112233445566778800000000"])`,
},
}
for i, test := range tests {
t.Run(fmt.Sprint(i), func(t *testing.T) {
p, err := target.Deserialize([]byte(test.prog), Strict)
if err != nil {
t.Fatalf("failed to deserialize prog: %v", err)
}
ptrArg := p.Calls[0].Args[0].(*PointerArg)
if !target.isComplexPtr(ptrArg) {
t.Fatalf("arg is not complex")
}
if target.ArgContainsAny(ptrArg) {
t.Fatalf("arg is already squashed")
}
target.squashPtr(ptrArg)
if !target.ArgContainsAny(ptrArg) {
t.Fatalf("arg is not squashed")
}
p1 := strings.TrimSpace(string(p.Serialize()))
target.squashPtr(ptrArg)
p2 := strings.TrimSpace(string(p.Serialize()))
if p1 != p2 {
t.Fatalf("double squash changed program:\n%v\nvs:\n%v", p1, p2)
}
if p1 != test.squashed {
t.Fatalf("bad squash result:\n%v\nwant:\n%v", p1, test.squashed)
}
})
}
}