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selinux: allow MLS->non-MLS and vice versa upon policy reload

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Allow runtime switching between different policy types (e.g. from a MLS/MCS
policy to a non-MLS/non-MCS policy or viceversa).

Signed-off-by: Guido Trentalancia <guido@trentalancia.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Guido Trentalancia
2010-02-03 16:40:20 +01:00
committed by James Morris
parent 42596eafdd
commit 0719aaf5ea
9 changed files with 84 additions and 59 deletions
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12
security/selinux/ss/context.h
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@ -41,9 +41,6 @@ static inline int mls_context_cpy(struct context *dst, struct context *src)
{
int rc;
if (!selinux_mls_enabled)
return 0;
dst->range.level[0].sens = src->range.level[0].sens;
rc = ebitmap_cpy(&dst->range.level[0].cat, &src->range.level[0].cat);
if (rc)
@ -64,9 +61,6 @@ static inline int mls_context_cpy_low(struct context *dst, struct context *src)
{
int rc;
if (!selinux_mls_enabled)
return 0;
dst->range.level[0].sens = src->range.level[0].sens;
rc = ebitmap_cpy(&dst->range.level[0].cat, &src->range.level[0].cat);
if (rc)
@ -82,9 +76,6 @@ out:
static inline int mls_context_cmp(struct context *c1, struct context *c2)
{
if (!selinux_mls_enabled)
return 1;
return ((c1->range.level[0].sens == c2->range.level[0].sens) &&
ebitmap_cmp(&c1->range.level[0].cat, &c2->range.level[0].cat) &&
(c1->range.level[1].sens == c2->range.level[1].sens) &&
@ -93,9 +84,6 @@ static inline int mls_context_cmp(struct context *c1, struct context *c2)
static inline void mls_context_destroy(struct context *c)
{
if (!selinux_mls_enabled)
return;
ebitmap_destroy(&c->range.level[0].cat);
ebitmap_destroy(&c->range.level[1].cat);
mls_context_init(c);