Function LoadPinnedProgram

prog.go:1114–1138

LoadPinnedProgram loads a Program from a pin (file) on the BPF virtual filesystem. Requires at least Linux 4.11.

(fileName string, opts *LoadPinOptions)

//
// Requires at least Linux 4.11.
func LoadPinnedProgram(fileName string, opts *LoadPinOptions) (*Program, error) {
	fd, typ, err := sys.ObjGetTyped(&sys.ObjGetAttr{
		Pathname:  sys.NewStringPointer(fileName),
		FileFlags: opts.Marshal(),
	})
	if err != nil {
		return nil, err
	}

	if typ != sys.BPF_TYPE_PROG {
		_ = fd.Close()
		return nil, fmt.Errorf("%s is not a Program", fileName)
	}

	p, err := newProgramFromFD(fd)
	if err == nil {
		p.pinnedPath = fileName

		if haveObjName() != nil {
			p.name = filepath.Base(fileName)
		}
	}

	return p, err
}

// ProgramGetNextID returns the ID of the next eBPF program.
//