On Fri, Apr 05, 2013 at 10:05:58AM -0400, Stefan Berger wrote:
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Corey Bryant <coreyb@linux.vnet.ibm.com> Tested-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
--- src/security/security_dac.c | 53 ++++++++++++++++++++++ src/security/security_selinux.c | 96 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 149 insertions(+)
Index: libvirt/src/security/security_selinux.c =================================================================== --- libvirt.orig/src/security/security_selinux.c +++ libvirt/src/security/security_selinux.c @@ -45,6 +45,7 @@ #include "virrandom.h" #include "virutil.h" #include "virconf.h" +#include "virtpm.h"
#define VIR_FROM_THIS VIR_FROM_SECURITY
@@ -76,6 +77,12 @@ struct _virSecuritySELinuxCallbackData { #define SECURITY_SELINUX_VOID_DOI "0" #define SECURITY_SELINUX_NAME "selinux"
+static int +virSecuritySELinuxRestoreSecurityTPMFileLabelInt(virSecurityManagerPtr mgr, + virDomainDefPtr def, + virDomainTPMDefPtr tpm); + + /* * Returns 0 on success, 1 if already reserved, or -1 on fatal error */ @@ -1062,6 +1069,84 @@ err: return rc; }
+ +static int +virSecuritySELinuxSetSecurityTPMFileLabel(virSecurityManagerPtr mgr, + virDomainDefPtr def, + virDomainTPMDefPtr tpm) +{ + int rc; + virSecurityLabelDefPtr seclabel; + char *cancel_path; + + seclabel = virDomainDefGetSecurityLabelDef(def, SECURITY_SELINUX_NAME); + if (seclabel == NULL) + return -1; + + switch (tpm->type) { + case VIR_DOMAIN_TPM_TYPE_PASSTHROUGH: + rc = virSecuritySELinuxSetFilecon( + tpm->data.passthrough.source.data.file.path, + seclabel->imagelabel); + if (rc < 0) + return -1; + + if ((cancel_path = virTPMFindCancelPath()) != NULL) { + rc = virSecuritySELinuxSetFilecon(cancel_path, + seclabel->imagelabel); + VIR_FREE(cancel_path); + if (rc < 0) { + virSecuritySELinuxRestoreSecurityTPMFileLabelInt(mgr, def, + tpm); + return -1; + } + } else { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Cannot determine TPM command cancel path"));
The virTPMFindCancelPath method has already reported an error, so you shouldn't overwrite it here with a less specific message.
+static int +virSecuritySELinuxRestoreSecurityTPMFileLabelInt(virSecurityManagerPtr mgr, + virDomainDefPtr def, + virDomainTPMDefPtr tpm) +{ + int rc = 0; + virSecurityLabelDefPtr seclabel; + char *cancel_path; + + seclabel = virDomainDefGetSecurityLabelDef(def, SECURITY_SELINUX_NAME); + if (seclabel == NULL) + return -1; + + switch (tpm->type) { + case VIR_DOMAIN_TPM_TYPE_PASSTHROUGH: + rc = virSecuritySELinuxRestoreSecurityFileLabel( + mgr, tpm->data.passthrough.source.data.file.path); + + if ((cancel_path = virTPMFindCancelPath()) != NULL) { + if (virSecuritySELinuxRestoreSecurityFileLabel(mgr, + cancel_path) < 0) + rc = -1; + VIR_FREE(cancel_path); + }
Since we want to ignore errors, we should call virResetLastError() if virTPMFindCancelPath fails. Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|