Re: [libvirt] [PATCH 2/2] apparmor: don't fail on non-apparmor <seclabel>

If the apparmor security driver is loaded/enabled and domain config contains a <seclabel> element whose type attribute is not 'apparmor', starting the domain fails when attempting to label resources such as tap FDs. Many of the apparmor driver entry points attempt to retrieve the apparmor security label from the domain def, returning failure if not found. Functions such as AppArmorSetFDLabel fail even though domain config contains an explicit 'none' secuirty driver, e.g. <seclabel type='none' model='none'/> Change the entry points to succeed if the domain config <seclabel> is not apparmor. This matches the behavior of the selinux driver. Signed-off-by: Jim Fehlig <jfehlig(a)suse.com&gt; --- src/security/security_apparmor.c | 58 ++++++++++++---------------------------- 1 file changed, 17 insertions(+), 41 deletions(-) diff --git a/src/security/security_apparmor.c b/src/security/security_apparmor.c index ad50b08..f871e60 100644 --- a/src/security/security_apparmor.c +++ b/src/security/security_apparmor.c @@ -289,10 +289,7 @@ reload_profile(virSecurityManagerPtr mgr, virSecurityLabelDefPtr secdef = virDomainDefGetSecurityLabelDef( def, SECURITY_APPARMOR_NAME); - if (!secdef) - return rc; - - if (!secdef->relabel) + if (!secdef || !secdef->relabel) return 0; if ((profile_name = get_profile_name(def)) == NULL) @@ -435,7 +432,7 @@ AppArmorGenSecurityLabel(virSecurityManagerPtr mgr ATTRIBUTE_UNUSED, SECURITY_APPARMOR_NAME); if (!secdef) - return -1; + return 0; if ((secdef->type == VIR_DOMAIN_SECLABEL_STATIC) || (secdef->type == VIR_DOMAIN_SECLABEL_NONE)) @@ -495,10 +492,7 @@ AppArmorSetSecurityAllLabel(virSecurityManagerPtr mgr, { virSecurityLabelDefPtr secdef = virDomainDefGetSecurityLabelDef(def, SECURITY_APPARMOR_NAME); - if (!secdef) - return -1; - - if (!secdef->relabel) + if (!secdef || !secdef->relabel) return 0; /* Reload the profile if stdin_path is specified. Note that @@ -559,12 +553,11 @@ AppArmorReleaseSecurityLabel(virSecurityManagerPtr mgr ATTRIBUTE_UNUSED, { virSecurityLabelDefPtr secdef = virDomainDefGetSecurityLabelDef(def, SECURITY_APPARMOR_NAME); - if (!secdef) - return -1; - - VIR_FREE(secdef->model); - VIR_FREE(secdef->label); - VIR_FREE(secdef->imagelabel); + if (secdef) { + VIR_FREE(secdef->model); + VIR_FREE(secdef->label); + VIR_FREE(secdef->imagelabel);\