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jle.go
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jle.go
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package ebpf
import "fmt"
var (
_ Instruction = (*JumpSmallerThanEqual)(nil)
_ Jumper = (*JumpSmallerThanEqual)(nil)
_ Valuer = (*JumpSmallerThanEqual)(nil)
)
type JumpSmallerThanEqual struct {
Dest Register
Offset int16
Value int32
}
func (a *JumpSmallerThanEqual) Raw() ([]RawInstruction, error) {
return []RawInstruction{
{Op: BPF_JLE | BPF_K | BPF_JMP, Reg: NewReg(0, a.Dest), Off: a.Offset, Imm: a.Value},
}, nil
}
func (a *JumpSmallerThanEqual) String() string {
return fmt.Sprintf("if r%s <= %d goto %+d", a.Dest, a.Value, a.Offset)
}
func (a *JumpSmallerThanEqual) SetJumpTarget(relAddr int16) {
a.Offset = relAddr
}
func (a *JumpSmallerThanEqual) SetValue(value int32) {
a.Value = value
}
var (
_ Instruction = (*JumpSmallerThanEqual32)(nil)
_ Jumper = (*JumpSmallerThanEqual32)(nil)
_ Valuer = (*JumpSmallerThanEqual32)(nil)
)
type JumpSmallerThanEqual32 struct {
Dest Register
Offset int16
Value int32
}
func (a *JumpSmallerThanEqual32) Raw() ([]RawInstruction, error) {
return []RawInstruction{
{Op: BPF_JLE | BPF_K | BPF_JMP32, Reg: NewReg(0, a.Dest), Off: a.Offset, Imm: a.Value},
}, nil
}
func (a *JumpSmallerThanEqual32) String() string {
return fmt.Sprintf("if w%d <= %d goto %+d", a.Dest, a.Value, a.Offset)
}
func (a *JumpSmallerThanEqual32) SetJumpTarget(relAddr int16) {
a.Offset = relAddr
}
func (a *JumpSmallerThanEqual32) SetValue(value int32) {
a.Value = value
}
var (
_ Instruction = (*JumpSmallerThanEqualRegister)(nil)
_ Jumper = (*JumpSmallerThanEqualRegister)(nil)
)
type JumpSmallerThanEqualRegister struct {
Dest Register
Src Register
Offset int16
}
func (a *JumpSmallerThanEqualRegister) Raw() ([]RawInstruction, error) {
return []RawInstruction{
{Op: BPF_JLE | BPF_X | BPF_JMP, Reg: NewReg(a.Src, a.Dest), Off: a.Offset},
}, nil
}
func (a *JumpSmallerThanEqualRegister) String() string {
return fmt.Sprintf("if r%s <= r%s goto %+d", a.Dest, a.Src, a.Offset)
}
func (a *JumpSmallerThanEqualRegister) SetJumpTarget(relAddr int16) {
a.Offset = relAddr
}
var (
_ Instruction = (*JumpSmallerThanEqualRegister32)(nil)
_ Jumper = (*JumpSmallerThanEqualRegister32)(nil)
)
type JumpSmallerThanEqualRegister32 struct {
Dest Register
Src Register
Offset int16
}
func (a *JumpSmallerThanEqualRegister32) Raw() ([]RawInstruction, error) {
return []RawInstruction{
{Op: BPF_JLE | BPF_X | BPF_JMP32, Reg: NewReg(a.Src, a.Dest), Off: a.Offset},
}, nil
}
func (a *JumpSmallerThanEqualRegister32) String() string {
return fmt.Sprintf("if w%d <= w%d goto %+d", a.Dest, a.Src, a.Offset)
}
func (a *JumpSmallerThanEqualRegister32) SetJumpTarget(relAddr int16) {
a.Offset = relAddr
}