pmg/ebpf-poc/bpf_bpfel.go

// Code generated by bpf2go; DO NOT EDIT.
//go:build 386 || amd64 || arm || arm64 || loong64 || mips64le || mipsle || ppc64le || riscv64 || wasm

package main

import (
	"bytes"
	_ "embed"
	"fmt"
	"io"
	"structs"

	"github.com/cilium/ebpf"
)

type bpfEvent struct {
	_      structs.HostLayout
	Pid    uint32
	Uid    uint32
	Daddr  uint32
	Dport  uint16
	Proto  uint8
	Action uint8
	Comm   [16]uint8
}

type bpfTarget struct {
	_    structs.HostLayout
	Ip   uint32
	Port uint16
	_    [2]byte
}

// Names of all BPF objects in the ELF.
//
// Used for safe lookups in a Collection or CollectionSpec.
const (
	bpfMapEvents       = "events"
	bpfMapExemptMap    = "exempt_map"
	bpfMapTargetMap    = "target_map"
	bpfProgConnect4    = "connect4"
	bpfVarUnusedEvent  = "unused_event"
	bpfVarUnusedTarget = "unused_target"
)

// loadBpf returns the embedded CollectionSpec for bpf.
func loadBpf() (*ebpf.CollectionSpec, error) {
	reader := bytes.NewReader(_BpfBytes)
	spec, err := ebpf.LoadCollectionSpecFromReader(reader)
	if err != nil {
		return nil, fmt.Errorf("can't load bpf: %w", err)
	}

	return spec, err
}

// loadBpfObjects loads bpf and converts it into a struct.
//
// The following types are suitable as obj argument:
//
//	*bpfObjects
//	*bpfPrograms
//	*bpfMaps
//
// See ebpf.CollectionSpec.LoadAndAssign documentation for details.
func loadBpfObjects(obj any, opts *ebpf.CollectionOptions) error {
	spec, err := loadBpf()
	if err != nil {
		return err
	}

	return spec.LoadAndAssign(obj, opts)
}

// bpfSpecs contains maps and programs before they are loaded into the kernel.
//
// It can be passed ebpf.CollectionSpec.Assign.
type bpfSpecs struct {
	bpfProgramSpecs
	bpfMapSpecs
	bpfVariableSpecs
}

// bpfProgramSpecs contains programs before they are loaded into the kernel.
//
// It can be passed ebpf.CollectionSpec.Assign.
type bpfProgramSpecs struct {
	Connect4 *ebpf.ProgramSpec `ebpf:"connect4"`
}

// bpfMapSpecs contains maps before they are loaded into the kernel.
//
// It can be passed ebpf.CollectionSpec.Assign.
type bpfMapSpecs struct {
	Events    *ebpf.MapSpec `ebpf:"events"`
	ExemptMap *ebpf.MapSpec `ebpf:"exempt_map"`
	TargetMap *ebpf.MapSpec `ebpf:"target_map"`
}

// bpfVariableSpecs contains global variables before they are loaded into the kernel.
//
// It can be passed ebpf.CollectionSpec.Assign.
type bpfVariableSpecs struct {
	UnusedEvent  *ebpf.VariableSpec `ebpf:"unused_event"`
	UnusedTarget *ebpf.VariableSpec `ebpf:"unused_target"`
}

// bpfObjects contains all objects after they have been loaded into the kernel.
//
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
type bpfObjects struct {
	bpfPrograms
	bpfMaps
	bpfVariables
}

func (o *bpfObjects) Close() error {
	return _BpfClose(
		&o.bpfPrograms,
		&o.bpfMaps,
	)
}

// bpfMaps contains all maps after they have been loaded into the kernel.
//
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
type bpfMaps struct {
	Events    *ebpf.Map `ebpf:"events"`
	ExemptMap *ebpf.Map `ebpf:"exempt_map"`
	TargetMap *ebpf.Map `ebpf:"target_map"`
}

func (m *bpfMaps) Close() error {
	return _BpfClose(
		m.Events,
		m.ExemptMap,
		m.TargetMap,
	)
}

// bpfVariables contains all global variables after they have been loaded into the kernel.
//
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
type bpfVariables struct {
	UnusedEvent  *ebpf.Variable `ebpf:"unused_event"`
	UnusedTarget *ebpf.Variable `ebpf:"unused_target"`
}

// bpfPrograms contains all programs after they have been loaded into the kernel.
//
// It can be passed to loadBpfObjects or ebpf.CollectionSpec.LoadAndAssign.
type bpfPrograms struct {
	Connect4 *ebpf.Program `ebpf:"connect4"`
}

func (p *bpfPrograms) Close() error {
	return _BpfClose(
		p.Connect4,
	)
}

func _BpfClose(closers ...io.Closer) error {
	for _, closer := range closers {
		if err := closer.Close(); err != nil {
			return err
		}
	}
	return nil
}

// Do not access this directly.
//
//go:embed bpf_bpfel.o
var _BpfBytes []byte