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path: root/security/selinux/ss/policydb.c
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Diffstat (limited to 'security/selinux/ss/policydb.c')
-rw-r--r--security/selinux/ss/policydb.c47
1 files changed, 46 insertions, 1 deletions
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 785c33cf4864..7b03fa0f92b0 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -91,6 +91,11 @@ static struct policydb_compat_info policydb_compat[] = {
.sym_num = SYM_NUM,
.ocon_num = OCON_NUM,
},
+ {
+ .version = POLICYDB_VERSION_AVTAB,
+ .sym_num = SYM_NUM,
+ .ocon_num = OCON_NUM,
+ },
};
static struct policydb_compat_info *policydb_lookup_compat(int version)
@@ -584,6 +589,9 @@ void policydb_destroy(struct policydb *p)
struct ocontext *c, *ctmp;
struct genfs *g, *gtmp;
int i;
+ struct role_allow *ra, *lra = NULL;
+ struct role_trans *tr, *ltr = NULL;
+ struct range_trans *rt, *lrt = NULL;
for (i = 0; i < SYM_NUM; i++) {
hashtab_map(p->symtab[i].table, destroy_f[i], NULL);
@@ -624,6 +632,28 @@ void policydb_destroy(struct policydb *p)
cond_policydb_destroy(p);
+ for (tr = p->role_tr; tr; tr = tr->next) {
+ if (ltr) kfree(ltr);
+ ltr = tr;
+ }
+ if (ltr) kfree(ltr);
+
+ for (ra = p->role_allow; ra; ra = ra -> next) {
+ if (lra) kfree(lra);
+ lra = ra;
+ }
+ if (lra) kfree(lra);
+
+ for (rt = p->range_tr; rt; rt = rt -> next) {
+ if (lrt) kfree(lrt);
+ lrt = rt;
+ }
+ if (lrt) kfree(lrt);
+
+ for (i = 0; i < p->p_types.nprim; i++)
+ ebitmap_destroy(&p->type_attr_map[i]);
+ kfree(p->type_attr_map);
+
return;
}
@@ -1511,7 +1541,7 @@ int policydb_read(struct policydb *p, void *fp)
p->symtab[i].nprim = nprim;
}
- rc = avtab_read(&p->te_avtab, fp, config);
+ rc = avtab_read(&p->te_avtab, fp, p->policyvers);
if (rc)
goto bad;
@@ -1825,6 +1855,21 @@ int policydb_read(struct policydb *p, void *fp)
}
}
+ p->type_attr_map = kmalloc(p->p_types.nprim*sizeof(struct ebitmap), GFP_KERNEL);
+ if (!p->type_attr_map)
+ goto bad;
+
+ for (i = 0; i < p->p_types.nprim; i++) {
+ ebitmap_init(&p->type_attr_map[i]);
+ if (p->policyvers >= POLICYDB_VERSION_AVTAB) {
+ if (ebitmap_read(&p->type_attr_map[i], fp))
+ goto bad;
+ }
+ /* add the type itself as the degenerate case */
+ if (ebitmap_set_bit(&p->type_attr_map[i], i, 1))
+ goto bad;
+ }
+
rc = 0;
out:
return rc;