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//go:build linux && cgo
// +build linux,cgo
package generate
import (
"context"
"errors"
"fmt"
"io/ioutil"
"github.com/containers/common/libimage"
goSeccomp "github.com/containers/common/pkg/seccomp"
"github.com/containers/podman/v4/pkg/seccomp"
"github.com/containers/podman/v4/pkg/specgen"
spec "github.com/opencontainers/runtime-spec/specs-go"
"github.com/sirupsen/logrus"
)
func getSeccompConfig(s *specgen.SpecGenerator, configSpec *spec.Spec, img *libimage.Image) (*spec.LinuxSeccomp, error) {
var seccompConfig *spec.LinuxSeccomp
var err error
scp, err := seccomp.LookupPolicy(s.SeccompPolicy)
if err != nil {
return nil, err
}
if scp == seccomp.PolicyImage {
if img == nil {
return nil, errors.New("cannot read seccomp profile without a valid image")
}
labels, err := img.Labels(context.Background())
if err != nil {
return nil, err
}
imagePolicy := labels[seccomp.ContainerImageLabel]
if len(imagePolicy) < 1 {
return nil, errors.New("no seccomp policy defined by image")
}
logrus.Debug("Loading seccomp profile from the security config")
seccompConfig, err = goSeccomp.LoadProfile(imagePolicy, configSpec)
if err != nil {
return nil, fmt.Errorf("loading seccomp profile failed: %w", err)
}
return seccompConfig, nil
}
if s.SeccompProfilePath != "" {
logrus.Debugf("Loading seccomp profile from %q", s.SeccompProfilePath)
seccompProfile, err := ioutil.ReadFile(s.SeccompProfilePath)
if err != nil {
return nil, fmt.Errorf("opening seccomp profile failed: %w", err)
}
seccompConfig, err = goSeccomp.LoadProfile(string(seccompProfile), configSpec)
if err != nil {
return nil, fmt.Errorf("loading seccomp profile (%s) failed: %w", s.SeccompProfilePath, err)
}
} else {
logrus.Debug("Loading default seccomp profile")
seccompConfig, err = goSeccomp.GetDefaultProfile(configSpec)
if err != nil {
return nil, fmt.Errorf("loading seccomp profile (%s) failed: %w", s.SeccompProfilePath, err)
}
}
return seccompConfig, nil
}
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