daemon/seccomp_linux.go
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 // +build linux,seccomp
 
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 package daemon // import "github.com/docker/docker/daemon"
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 import (
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 	"context"
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 	"fmt"
 
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 	"github.com/containerd/containerd/containers"
 	coci "github.com/containerd/containerd/oci"
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 	"github.com/docker/docker/container"
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 	"github.com/docker/docker/profiles/seccomp"
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 	"github.com/sirupsen/logrus"
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 )
 
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 const supportsSeccomp = true
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 // WithSeccomp sets the seccomp profile
 func WithSeccomp(daemon *Daemon, c *container.Container) coci.SpecOpts {
 	return func(ctx context.Context, _ coci.Client, _ *containers.Container, s *coci.Spec) error {
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 		if c.SeccompProfile == "unconfined" {
 			return nil
 		}
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 		if c.HostConfig.Privileged {
 			return nil
 		}
 		if !daemon.seccompEnabled {
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 			if c.SeccompProfile != "" {
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 				return fmt.Errorf("seccomp is not enabled in your kernel, cannot run a custom seccomp profile")
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 			}
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 			logrus.Warn("seccomp is not enabled in your kernel, running container without default profile")
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 			c.SeccompProfile = "unconfined"
 			return nil
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 		}
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 		var err error
 		switch {
 		case c.SeccompProfile != "":
 			s.Linux.Seccomp, err = seccomp.LoadProfile(c.SeccompProfile, s)
 		case daemon.seccompProfile != nil:
 			s.Linux.Seccomp, err = seccomp.LoadProfile(string(daemon.seccompProfile), s)
 		default:
 			s.Linux.Seccomp, err = seccomp.GetDefaultProfile(s)
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 		}
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 		return err
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 	}
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 }