Berkeley Packet Filter (BPF) assembler.



    Package bpf is an assembler for the Berkeley Packet Filter (bpf).



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    type ALUOp

    type ALUOp = bpf.ALUOp

      Instruction aliases.

      type ALUOpConstant

      type ALUOpConstant = bpf.ALUOpConstant

        Type aliases.

        type ALUOpX

        type ALUOpX = bpf.ALUOpX

          Type aliases.

          type Extension

          type Extension = bpf.Extension

            Type aliases.

            type Instruction

            type Instruction = bpf.Instruction

              Type aliases.

              type Jump

              type Jump = bpf.Jump

                Type aliases.

                type JumpIf

                type JumpIf = bpf.JumpIf

                  Type aliases.

                  type JumpIfX

                  type JumpIfX = bpf.JumpIfX

                    Type aliases.

                    type JumpTest

                    type JumpTest = bpf.JumpTest

                      Type aliases.

                      type LoadAbsolute

                      type LoadAbsolute = bpf.LoadAbsolute

                        Type aliases.

                        type LoadConstant

                        type LoadConstant = bpf.LoadConstant

                          Type aliases.

                          type LoadExtension

                          type LoadExtension = bpf.LoadExtension

                            Type aliases.

                            type LoadIndirect

                            type LoadIndirect = bpf.LoadIndirect

                              Type aliases.

                              type LoadMemShift

                              type LoadMemShift = bpf.LoadMemShift

                                Type aliases.

                                type LoadScratch

                                type LoadScratch = bpf.LoadScratch

                                  Type aliases.

                                  type NegateA

                                  type NegateA = bpf.NegateA

                                    Type aliases.

                                    type Program

                                    type Program []bpf.Instruction

                                      Program is an assembled program.

                                      func Assemble

                                      func Assemble(source string) (Program, error)

                                        Assemble BPF instructions from source.

                                        func (Program) Assemble

                                        func (p Program) Assemble() ([]bpf.RawInstruction, error)

                                        type RawInstruction

                                        type RawInstruction = bpf.RawInstruction

                                          Type aliases.

                                          type Register

                                          type Register = bpf.Register

                                            Type aliases.

                                            type Registers

                                            type Registers struct {
                                            	PC uint32     // Program Counter
                                            	A  uint32     // Accumulator
                                            	X  uint32     //
                                            	R  [16]uint32 // Scratch

                                              Registers for a BPF virtual machine.

                                              type RetA

                                              type RetA = bpf.RetA

                                                Type aliases.

                                                type RetConstant

                                                type RetConstant = bpf.RetConstant

                                                  Type aliases.

                                                  type StoreScratch

                                                  type StoreScratch = bpf.StoreScratch

                                                    Type aliases.

                                                    type TAX

                                                    type TAX = bpf.TAX

                                                      Type aliases.

                                                      type TXA

                                                      type TXA = bpf.TXA

                                                        Type aliases.

                                                        type VM

                                                        type VM struct {
                                                        	// Extensions are optional callback to load extensions. Note that the
                                                        	// "len" extension is always provided by the VM.
                                                        	Extensions map[bpf.Extension]func(*Registers) uint32
                                                        	// contains filtered or unexported fields

                                                          A VM is an emulated BPF virtual machine.

                                                          func NewVM

                                                          func NewVM(program Program) *VM

                                                          func (*VM) Run

                                                          func (vm *VM) Run(in []byte) (verdict uint32, err error)

                                                          func (*VM) Verify

                                                          func (vm *VM) Verify() error

                                                            Verify runs sanity checks on the loaded program.


                                                            Path Synopsis
                                                            Package bpfasm implements a basic BPF assembler.
                                                            Package bpfasm implements a basic BPF assembler.