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// Copyright 2024 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 declextract
import (
"bytes"
"encoding/json"
"slices"
)
type Output struct {
Includes []string `json:"includes,omitempty"`
Defines []*Define `json:"defines,omitempty"`
Enums []*Enum `json:"enums,omitempty"`
Structs []*Struct `json:"structs,omitempty"`
Syscalls []*Syscall `json:"syscalls,omitempty"`
IouringOps []*IouringOp `json:"iouring_ops,omitempty"`
NetlinkFamilies []*NetlinkFamily `json:"netlink_families,omitempty"`
NetlinkPolicies []*NetlinkPolicy `json:"netlink_policies,omitempty"`
}
type Define struct {
Name string `json:"name,omitempty"`
Value string `json:"value,omitempty"`
}
type Field struct {
Name string `json:"name,omitempty"`
IsAnonymous bool `json:"is_anonymous,omitempty"`
BitWidth int `json:"bit_width,omitempty"`
CountedBy int `json:"counted_by,omitempty"`
Type *Type `json:"type,omitempty"`
syzType string
}
type Syscall struct {
Func string `json:"func,omitempty"`
Args []*Field `json:"args,omitempty"`
SourceFile string `json:"source_file,omitempty"`
}
type IouringOp struct {
Name string `json:"name,omitempty"`
Func string `json:"func,omitempty"`
SourceFile string `json:"source_file,omitempty"`
}
type NetlinkFamily struct {
Name string `json:"name,omitempty"`
Ops []*NetlinkOp `json:"ops,omitempty"`
SourceFile string `json:"source_file,omitempty"`
}
type NetlinkPolicy struct {
Name string `json:"name,omitempty"`
Attrs []*NetlinkAttr `json:"attrs,omitempty"`
}
type NetlinkOp struct {
Name string `json:"name,omitempty"`
Func string `json:"func,omitempty"`
Access string `json:"access,omitempty"`
Policy string `json:"policy,omitempty"`
}
type NetlinkAttr struct {
Name string `json:"name,omitempty"`
Kind string `json:"kind,omitempty"`
MaxSize int `json:"max_size,omitempty"`
NestedPolicy string `json:"nested_policy,omitempty"`
Elem *Type `json:"elem,omitempty"`
}
type Struct struct {
Name string `json:"name,omitempty"`
ByteSize int `json:"byte_size,omitempty"`
IsUnion bool `json:"is_union,omitempty"`
IsPacked bool `json:"is_packed,omitempty"`
Align int `json:"align,omitempty"`
Fields []*Field `json:"fields,omitempty"`
// TODO: remove me.
isVarlen bool
}
type Enum struct {
Name string `json:"name,omitempty"`
Values []string `json:"values,omitempty"`
}
type Type struct {
Int *IntType `json:"int,omitempty"`
Ptr *PtrType `json:"ptr,omitempty"`
Array *ArrayType `json:"array,omitempty"`
Buffer *BufferType `json:"buffer,omitempty"`
Struct string `json:"struct,omitempty"`
}
type IntType struct {
ByteSize int `json:"byte_size,omitempty"`
Name string `json:"name,omitempty"`
Base string `json:"base,omitempty"`
Enum string `json:"enum,omitempty"`
isBigEndian bool
}
type PtrType struct {
Elem *Type `json:"elem,omitempty"`
IsConst bool `json:"is_const,omitempty"`
}
type ArrayType struct {
Elem *Type `json:"elem,omitempty"`
MinSize int `json:"min_size,omitempty"`
MaxSize int `json:"max_size,omitempty"`
}
type BufferType struct {
MinSize int `json:"min_size,omitempty"`
MaxSize int `json:"max_size,omitempty"`
IsString bool `json:"is_string,omitempty"`
IsNonTerminated bool `json:"is_non_terminated,omitempty"`
}
func (out *Output) Merge(other *Output) {
out.Includes = append(out.Includes, other.Includes...)
out.Defines = append(out.Defines, other.Defines...)
out.Enums = append(out.Enums, other.Enums...)
out.Structs = append(out.Structs, other.Structs...)
out.Syscalls = append(out.Syscalls, other.Syscalls...)
out.IouringOps = append(out.IouringOps, other.IouringOps...)
out.NetlinkFamilies = append(out.NetlinkFamilies, other.NetlinkFamilies...)
out.NetlinkPolicies = append(out.NetlinkPolicies, other.NetlinkPolicies...)
}
func (out *Output) SortAndDedup() {
out.Includes = sortAndDedupSlice(out.Includes)
out.Defines = sortAndDedupSlice(out.Defines)
out.Enums = sortAndDedupSlice(out.Enums)
out.Structs = sortAndDedupSlice(out.Structs)
out.Syscalls = sortAndDedupSlice(out.Syscalls)
out.IouringOps = sortAndDedupSlice(out.IouringOps)
out.NetlinkFamilies = sortAndDedupSlice(out.NetlinkFamilies)
out.NetlinkPolicies = sortAndDedupSlice(out.NetlinkPolicies)
}
// SetSoureFile attaches the source file to the entities that need it.
// The clang tool could do it, but it looks easier to do it here.
func (out *Output) SetSourceFile(file string) {
for _, call := range out.Syscalls {
call.SourceFile = file
}
for _, fam := range out.NetlinkFamilies {
fam.SourceFile = file
}
for _, op := range out.IouringOps {
op.SourceFile = file
}
}
func sortAndDedupSlice[Slice ~[]E, E any](s Slice) Slice {
slices.SortFunc(s, func(a, b E) int {
aa, _ := json.Marshal(a)
bb, _ := json.Marshal(b)
return bytes.Compare(aa, bb)
})
return slices.CompactFunc(s, func(a, b E) bool {
aa, _ := json.Marshal(a)
bb, _ := json.Marshal(b)
return bytes.Equal(aa, bb)
})
}
|
