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SELinux: renumber the superblock options

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Just to make it clear that we have mount time options and flags,
separate them.  Since I decided to move the non-mount options above
above 0x10, we need a short instead of a char.  (x86 padding says
this takes up no additional space as we have a 3byte whole in the
structure)

Signed-off-by: Eric Paris <eparis@redhat.com>
This commit is contained in:
Eric Paris 2012-10-09 16:20:08 -04:00
parent eadcabc697
commit cfca0303da
2 changed files with 5 additions and 4 deletions
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2
security/selinux/include/objsec.h
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@ -59,7 +59,7 @@ struct superblock_security_struct {
u32 def_sid; /* default SID for labeling */
u32 mntpoint_sid; /* SECURITY_FS_USE_MNTPOINT context for files */
unsigned int behavior; /* labeling behavior */
unsigned char flags; /* which mount options were specified */
unsigned short flags; /* which mount options were specified */
struct mutex lock;
struct list_head isec_head;
spinlock_t isec_lock;

7
security/selinux/include/security.h
View File

@ -45,14 +45,15 @@
/* Mask for just the mount related flags */
#define SE_MNTMASK 0x0f
/* Super block security struct flags for mount options */
/* BE CAREFUL, these need to be the low order bits for selinux_get_mnt_opts */
#define CONTEXT_MNT 0x01
#define FSCONTEXT_MNT 0x02
#define ROOTCONTEXT_MNT 0x04
#define DEFCONTEXT_MNT 0x08
#define SBLABEL_MNT 0x10
/* Non-mount related flags */
#define SE_SBINITIALIZED 0x10
#define SE_SBPROC 0x20
#define SBLABEL_MNT 0x40
#define SE_SBINITIALIZED 0x0100
#define SE_SBPROC 0x0200
#define CONTEXT_STR "context="
#define FSCONTEXT_STR "fscontext="