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SELinux: export object class and permission definitions 

Moves the definition of the 3 structs containing object class and
permission definitions from avc.c to avc_ss.h so that the security
server can access them for validation on policy load. This also adds
a new struct type, defined_classes_perms_t, suitable for allowing the
security server to access these data structures from the avc.

Signed-off-by: Chad Sellers <csellers@tresys.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Chad Sellers 2006-11-06 12:38:16 -05:00 committed by James Morris
parent 5a64d4438e
commit 5c45899879
2 changed files with 35 additions and 12 deletions
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23
security/selinux/avc.c
View File

@ -32,12 +32,7 @@
#include "avc.h"
#include "avc_ss.h"
static const struct av_perm_to_string
{
u16 tclass;
u32 value;
const char *name;
} av_perm_to_string[] = {
static const struct av_perm_to_string av_perm_to_string[] = {
#define S_(c, v, s) { c, v, s },
#include "av_perm_to_string.h"
#undef S_
@ -57,17 +52,21 @@ static const char *class_to_string[] = {
#undef TE_
#undef S_
static const struct av_inherit
{
u16 tclass;
const char **common_pts;
u32 common_base;
} av_inherit[] = {
static const struct av_inherit av_inherit[] = {
#define S_(c, i, b) { c, common_##i##_perm_to_string, b },
#include "av_inherit.h"
#undef S_
};
const struct selinux_class_perm selinux_class_perm = {
av_perm_to_string,
ARRAY_SIZE(av_perm_to_string),
class_to_string,
ARRAY_SIZE(class_to_string),
av_inherit,
ARRAY_SIZE(av_inherit)
};
#define AVC_CACHE_SLOTS 512
#define AVC_DEF_CACHE_THRESHOLD 512
#define AVC_CACHE_RECLAIM 16

24
security/selinux/include/avc_ss.h
View File

@ -10,5 +10,29 @@
int avc_ss_reset(u32 seqno);
struct av_perm_to_string
{
u16 tclass;
u32 value;
const char *name;
};
struct av_inherit
{
u16 tclass;
const char **common_pts;
u32 common_base;
};
struct selinux_class_perm
{
const struct av_perm_to_string *av_perm_to_string;
u32 av_pts_len;
const char **class_to_string;
u32 cts_len;
const struct av_inherit *av_inherit;
u32 av_inherit_len;
};
#endif /* _SELINUX_AVC_SS_H_ */