[libvirt] [PATCH 3/3] apparmor: use AppArmorSetFDLabel for both imageFD and tapFD

[Guannan Ren]

Rename AppArmorSetImageFDLabel to AppArmorSetFDLabel which could
be used as a common function for *ALL* fd relabelling in Linux.

In apparmor profile for specific vm with uuid cdbebdfa-1d6d-65c3-be0f-fd74b978a773
Path: /etc/apparmor.d/libvirt/libvirt-cdbebdfa-1d6d-65c3-be0f-fd74b978a773.files
The last line is for the tapfd relabelling.

 # DO NOT EDIT THIS FILE DIRECTLY. IT IS MANAGED BY LIBVIRT.
  "/var/log/libvirt/**/rhel6qcow2.log" w,
  "/var/lib/libvirt/**/rhel6qcow2.monitor" rw,
  "/var/run/libvirt/**/rhel6qcow2.pid" rwk,
  "/run/libvirt/**/rhel6qcow2.pid" rwk,
  "/var/run/libvirt/**/*.tunnelmigrate.dest.rhel6qcow2" rw,
  "/run/libvirt/**/*.tunnelmigrate.dest.rhel6qcow2" rw,
  "/var/lib/libvirt/images/rhel6u3qcow2.img" rw,
  "/dev/tap45" rw,
---
 src/security/security_apparmor.c |   15 +++------------
 1 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/src/security/security_apparmor.c b/src/security/security_apparmor.c
index 1972ab0..953775c 100644
--- a/src/security/security_apparmor.c
+++ b/src/security/security_apparmor.c
@@ -840,7 +840,7 @@ AppArmorRestoreSavedStateLabel(virSecurityManagerPtr mgr,
 }
 
 static int
-AppArmorSetImageFDLabel(virSecurityManagerPtr mgr,
+AppArmorSetFDLabel(virSecurityManagerPtr mgr,
                         virDomainDefPtr def,
                         int fd)
 {
@@ -871,15 +871,6 @@ AppArmorSetImageFDLabel(virSecurityManagerPtr mgr,
     return reload_profile(mgr, def, fd_path, true);
 }
 
-/* TODO need code here */
-static int
-AppArmorSetTapFDLabel(virSecurityManagerPtr mgr ATTRIBUTE_UNUSED,
-                      virDomainDefPtr def ATTRIBUTE_UNUSED,
-                      int fd ATTRIBUTE_UNUSED)
-{
-    return 0;
-}
-
 virSecurityDriver virAppArmorSecurityDriver = {
     .privateDataLen                     = 0,
     .name                               = SECURITY_APPARMOR_NAME,
@@ -915,6 +906,6 @@ virSecurityDriver virAppArmorSecurityDriver = {
     .domainSetSavedStateLabel           = AppArmorSetSavedStateLabel,
     .domainRestoreSavedStateLabel       = AppArmorRestoreSavedStateLabel,
 
-    .domainSetSecurityImageFDLabel      = AppArmorSetImageFDLabel,
-    .domainSetSecurityTapFDLabel        = AppArmorSetTapFDLabel,
+    .domainSetSecurityImageFDLabel      = AppArmorSetFDLabel,
+    .domainSetSecurityTapFDLabel        = AppArmorSetFDLabel,
 };
-- 
1.7.3.4