diff options
Diffstat (limited to 'pkg')
| -rw-r--r-- | pkg/seccomp/seccomp.go | 54 | ||||
| -rw-r--r-- | pkg/spec/config_linux_cgo.go | 11 | ||||
| -rw-r--r-- | pkg/spec/createconfig.go | 46 |
3 files changed, 62 insertions, 49 deletions
diff --git a/pkg/seccomp/seccomp.go b/pkg/seccomp/seccomp.go new file mode 100644 index 000000000..dcf255378 --- /dev/null +++ b/pkg/seccomp/seccomp.go @@ -0,0 +1,54 @@ +package seccomp + +import ( + "sort" + + "github.com/pkg/errors" +) + +// ContianerImageLabel is the key of the image annotation embedding a seccomp +// profile. +const ContainerImageLabel = "io.containers.seccomp.profile" + +// Policy denotes a seccomp policy. +type Policy int + +const ( + // PolicyDefault - if set use SecurityConfig.SeccompProfilePath, + // otherwise use the default profile. The SeccompProfilePath might be + // explicitly set by the user. + PolicyDefault Policy = iota + // PolicyImage - if set use SecurityConfig.SeccompProfileFromImage, + // otherwise follow SeccompPolicyDefault. + PolicyImage +) + +// Map for easy lookups of supported policies. +var supportedPolicies = map[string]Policy{ + "": PolicyDefault, + "default": PolicyDefault, + "image": PolicyImage, +} + +// LookupPolicy looksup the corresponding Policy for the specified +// string. If none is found, an errors is returned including the list of +// supported policies. +// +// Note that an empty string resolved to SeccompPolicyDefault. +func LookupPolicy(s string) (Policy, error) { + policy, exists := supportedPolicies[s] + if exists { + return policy, nil + } + + // Sort the keys first as maps are non-deterministic. + keys := []string{} + for k := range supportedPolicies { + if k != "" { + keys = append(keys, k) + } + } + sort.Strings(keys) + + return -1, errors.Errorf("invalid seccomp policy %q: valid policies are %+q", s, keys) +} diff --git a/pkg/spec/config_linux_cgo.go b/pkg/spec/config_linux_cgo.go index ae83c9d52..05f42c4da 100644 --- a/pkg/spec/config_linux_cgo.go +++ b/pkg/spec/config_linux_cgo.go @@ -5,9 +5,10 @@ package createconfig import ( "io/ioutil" + "github.com/containers/libpod/pkg/seccomp" spec "github.com/opencontainers/runtime-spec/specs-go" "github.com/pkg/errors" - seccomp "github.com/seccomp/containers-golang" + goSeccomp "github.com/seccomp/containers-golang" "github.com/sirupsen/logrus" ) @@ -15,9 +16,9 @@ func getSeccompConfig(config *SecurityConfig, configSpec *spec.Spec) (*spec.Linu var seccompConfig *spec.LinuxSeccomp var err error - if config.SeccompPolicy == SeccompPolicyImage && config.SeccompProfileFromImage != "" { + if config.SeccompPolicy == seccomp.PolicyImage && config.SeccompProfileFromImage != "" { logrus.Debug("Loading seccomp profile from the security config") - seccompConfig, err = seccomp.LoadProfile(config.SeccompProfileFromImage, configSpec) + seccompConfig, err = goSeccomp.LoadProfile(config.SeccompProfileFromImage, configSpec) if err != nil { return nil, errors.Wrap(err, "loading seccomp profile failed") } @@ -30,13 +31,13 @@ func getSeccompConfig(config *SecurityConfig, configSpec *spec.Spec) (*spec.Linu if err != nil { return nil, errors.Wrapf(err, "opening seccomp profile (%s) failed", config.SeccompProfilePath) } - seccompConfig, err = seccomp.LoadProfile(string(seccompProfile), configSpec) + seccompConfig, err = goSeccomp.LoadProfile(string(seccompProfile), configSpec) if err != nil { return nil, errors.Wrapf(err, "loading seccomp profile (%s) failed", config.SeccompProfilePath) } } else { logrus.Debug("Loading default seccomp profile") - seccompConfig, err = seccomp.GetDefaultProfile(configSpec) + seccompConfig, err = goSeccomp.GetDefaultProfile(configSpec) if err != nil { return nil, errors.Wrapf(err, "loading seccomp profile (%s) failed", config.SeccompProfilePath) } diff --git a/pkg/spec/createconfig.go b/pkg/spec/createconfig.go index fb222083b..173dfb842 100644 --- a/pkg/spec/createconfig.go +++ b/pkg/spec/createconfig.go @@ -2,7 +2,6 @@ package createconfig import ( "os" - "sort" "strconv" "strings" "syscall" @@ -11,6 +10,7 @@ import ( "github.com/containers/libpod/libpod" "github.com/containers/libpod/libpod/define" "github.com/containers/libpod/pkg/namespaces" + "github.com/containers/libpod/pkg/seccomp" "github.com/containers/storage" "github.com/docker/go-connections/nat" spec "github.com/opencontainers/runtime-spec/specs-go" @@ -107,48 +107,6 @@ type NetworkConfig struct { PublishAll bool //publish-all } -// SeccompPolicy determines which seccomp profile gets applied to the container. -type SeccompPolicy int - -const ( - // SeccompPolicyDefault - if set use SecurityConfig.SeccompProfilePath, - // otherwise use the default profile. The SeccompProfilePath might be - // explicitly set by the user. - SeccompPolicyDefault SeccompPolicy = iota - // SeccompPolicyImage - if set use SecurityConfig.SeccompProfileFromImage, - // otherwise follow SeccompPolicyDefault. - SeccompPolicyImage -) - -// Map for easy lookups of supported policies. -var supportedSeccompPolicies = map[string]SeccompPolicy{ - "": SeccompPolicyDefault, - "default": SeccompPolicyDefault, - "image": SeccompPolicyImage, -} - -// LookupSeccompPolicy looksup the corresponding SeccompPolicy for the specified -// string. If none is found, an errors is returned including the list of -// supported policies. -// Note that an empty string resolved to SeccompPolicyDefault. -func LookupSeccompPolicy(s string) (SeccompPolicy, error) { - policy, exists := supportedSeccompPolicies[s] - if exists { - return policy, nil - } - - // Sort the keys first as maps are non-deterministic. - keys := []string{} - for k := range supportedSeccompPolicies { - if k != "" { - keys = append(keys, k) - } - } - sort.Strings(keys) - - return -1, errors.Errorf("invalid seccomp policy %q: valid policies are %+q", s, keys) -} - // SecurityConfig configures the security features for the container type SecurityConfig struct { CapAdd []string // cap-add @@ -158,7 +116,7 @@ type SecurityConfig struct { ApparmorProfile string //SecurityOpts SeccompProfilePath string //SecurityOpts SeccompProfileFromImage string // seccomp profile from the container image - SeccompPolicy SeccompPolicy + SeccompPolicy seccomp.Policy SecurityOpts []string Privileged bool //privileged ReadOnlyRootfs bool //read-only |