Re: [PATCH v3 06/14] security: Add DAC and SELinux security for tpm-emulator

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On 05/04/2018 04:21 PM, Stefan Berger wrote:
> Extend the DAC and SELinux modules with support for the
> tpm-emulator.
> 
> Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxxxxxxx>
> ---
>  src/security/security_dac.c     | 4 ++++
>  src/security/security_selinux.c | 5 +++++
>  2 files changed, 9 insertions(+)
> 
> diff --git a/src/security/security_dac.c b/src/security/security_dac.c
> index 5efbc27..351f6f4 100644
> --- a/src/security/security_dac.c
> +++ b/src/security/security_dac.c
> @@ -1373,6 +1373,10 @@ virSecurityDACSetTPMFileLabel(virSecurityManagerPtr mgr,
>                                              false);
>          break;
>      case VIR_DOMAIN_TPM_TYPE_EMULATOR:
> +        ret = virSecurityDACSetChardevLabel(mgr, def,
> +                                            &tpm->data.emulator.source,
> +                                            false);
> +        break;
>      case VIR_DOMAIN_TPM_TYPE_LAST:
>          break;
>      }

virSecurityDACRestoreTPMFileLabel doesn't need to be changed? e.g.:


    ret = virSecurityDACRestoreChardevLabel(mgr, def,
                                            &tpm->data.emulator.source,
                                            false);


> diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c
> index f5ba877..17bc07a 100644
> --- a/src/security/security_selinux.c
> +++ b/src/security/security_selinux.c
> @@ -1473,6 +1473,11 @@ virSecuritySELinuxSetTPMFileLabel(virSecurityManagerPtr mgr,
>          }
>          break;
>      case VIR_DOMAIN_TPM_TYPE_EMULATOR:
> +        tpmdev = tpm->data.emulator.source.data.nix.path;
> +        rc = virSecuritySELinuxSetFilecon(mgr, tpmdev, seclabel->imagelabel);
> +        if (rc < 0)
> +            return -1;
> +        break;
>      case VIR_DOMAIN_TPM_TYPE_LAST:
>          break;
>      }
> 

Similarly for virSecuritySELinuxRestoreTPMFileLabelInt:

        tpmdev = tpm->data.emulator.source.data.nix.path;
        rc = virSecuritySELinuxRestoreFileLabel(mgr, tpmdev);

?

With the adjustments or at least an explanation in the commit message
why they cannot be Restored,

Reviewed-by: John Ferlan <jferlan@xxxxxxxxxx>

John

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