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-rw-r--r--security/selinux/ss/policydb.c376
1 files changed, 187 insertions, 189 deletions
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 38d0083204f1..d5effce86304 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -179,6 +179,193 @@ static struct policydb_compat_info *policydb_lookup_compat(int version)
}
/*
+ * The following *_destroy functions are used to
+ * free any memory allocated for each kind of
+ * symbol data in the policy database.
+ */
+
+static int perm_destroy(void *key, void *datum, void *p)
+{
+ kfree(key);
+ kfree(datum);
+ return 0;
+}
+
+static int common_destroy(void *key, void *datum, void *p)
+{
+ struct common_datum *comdatum;
+
+ kfree(key);
+ if (datum) {
+ comdatum = datum;
+ hashtab_map(comdatum->permissions.table, perm_destroy, NULL);
+ hashtab_destroy(comdatum->permissions.table);
+ }
+ kfree(datum);
+ return 0;
+}
+
+static void constraint_expr_destroy(struct constraint_expr *expr)
+{
+ if (expr) {
+ ebitmap_destroy(&expr->names);
+ if (expr->type_names) {
+ ebitmap_destroy(&expr->type_names->types);
+ ebitmap_destroy(&expr->type_names->negset);
+ kfree(expr->type_names);
+ }
+ kfree(expr);
+ }
+}
+
+static int cls_destroy(void *key, void *datum, void *p)
+{
+ struct class_datum *cladatum;
+ struct constraint_node *constraint, *ctemp;
+ struct constraint_expr *e, *etmp;
+
+ kfree(key);
+ if (datum) {
+ cladatum = datum;
+ hashtab_map(cladatum->permissions.table, perm_destroy, NULL);
+ hashtab_destroy(cladatum->permissions.table);
+ constraint = cladatum->constraints;
+ while (constraint) {
+ e = constraint->expr;
+ while (e) {
+ etmp = e;
+ e = e->next;
+ constraint_expr_destroy(etmp);
+ }
+ ctemp = constraint;
+ constraint = constraint->next;
+ kfree(ctemp);
+ }
+
+ constraint = cladatum->validatetrans;
+ while (constraint) {
+ e = constraint->expr;
+ while (e) {
+ etmp = e;
+ e = e->next;
+ constraint_expr_destroy(etmp);
+ }
+ ctemp = constraint;
+ constraint = constraint->next;
+ kfree(ctemp);
+ }
+ kfree(cladatum->comkey);
+ }
+ kfree(datum);
+ return 0;
+}
+
+static int role_destroy(void *key, void *datum, void *p)
+{
+ struct role_datum *role;
+
+ kfree(key);
+ if (datum) {
+ role = datum;
+ ebitmap_destroy(&role->dominates);
+ ebitmap_destroy(&role->types);
+ }
+ kfree(datum);
+ return 0;
+}
+
+static int type_destroy(void *key, void *datum, void *p)
+{
+ kfree(key);
+ kfree(datum);
+ return 0;
+}
+
+static int user_destroy(void *key, void *datum, void *p)
+{
+ struct user_datum *usrdatum;
+
+ kfree(key);
+ if (datum) {
+ usrdatum = datum;
+ ebitmap_destroy(&usrdatum->roles);
+ ebitmap_destroy(&usrdatum->range.level[0].cat);
+ ebitmap_destroy(&usrdatum->range.level[1].cat);
+ ebitmap_destroy(&usrdatum->dfltlevel.cat);
+ }
+ kfree(datum);
+ return 0;
+}
+
+static int sens_destroy(void *key, void *datum, void *p)
+{
+ struct level_datum *levdatum;
+
+ kfree(key);
+ if (datum) {
+ levdatum = datum;
+ if (levdatum->level)
+ ebitmap_destroy(&levdatum->level->cat);
+ kfree(levdatum->level);
+ }
+ kfree(datum);
+ return 0;
+}
+
+static int cat_destroy(void *key, void *datum, void *p)
+{
+ kfree(key);
+ kfree(datum);
+ return 0;
+}
+
+static int (*destroy_f[SYM_NUM]) (void *key, void *datum, void *datap) =
+{
+ common_destroy,
+ cls_destroy,
+ role_destroy,
+ type_destroy,
+ user_destroy,
+ cond_destroy_bool,
+ sens_destroy,
+ cat_destroy,
+};
+
+static int filenametr_destroy(void *key, void *datum, void *p)
+{
+ struct filename_trans *ft = key;
+ kfree(ft->name);
+ kfree(key);
+ kfree(datum);
+ cond_resched();
+ return 0;
+}
+
+static int range_tr_destroy(void *key, void *datum, void *p)
+{
+ struct mls_range *rt = datum;
+ kfree(key);
+ ebitmap_destroy(&rt->level[0].cat);
+ ebitmap_destroy(&rt->level[1].cat);
+ kfree(datum);
+ cond_resched();
+ return 0;
+}
+
+static void ocontext_destroy(struct ocontext *c, int i)
+{
+ if (!c)
+ return;
+
+ context_destroy(&c->context[0]);
+ context_destroy(&c->context[1]);
+ if (i == OCON_ISID || i == OCON_FS ||
+ i == OCON_NETIF || i == OCON_FSUSE)
+ kfree(c->u.name);
+ kfree(c);
+}
+
+/*
* Initialize the role table.
*/
static int roles_init(struct policydb *p)
@@ -274,8 +461,6 @@ static int rangetr_cmp(struct hashtab *h, const void *k1, const void *k2)
return v;
}
-static int (*destroy_f[SYM_NUM]) (void *key, void *datum, void *datap);
-
/*
* Initialize a policy database structure.
*/
@@ -570,193 +755,6 @@ out:
}
/*
- * The following *_destroy functions are used to
- * free any memory allocated for each kind of
- * symbol data in the policy database.
- */
-
-static int perm_destroy(void *key, void *datum, void *p)
-{
- kfree(key);
- kfree(datum);
- return 0;
-}
-
-static int common_destroy(void *key, void *datum, void *p)
-{
- struct common_datum *comdatum;
-
- kfree(key);
- if (datum) {
- comdatum = datum;
- hashtab_map(comdatum->permissions.table, perm_destroy, NULL);
- hashtab_destroy(comdatum->permissions.table);
- }
- kfree(datum);
- return 0;
-}
-
-static void constraint_expr_destroy(struct constraint_expr *expr)
-{
- if (expr) {
- ebitmap_destroy(&expr->names);
- if (expr->type_names) {
- ebitmap_destroy(&expr->type_names->types);
- ebitmap_destroy(&expr->type_names->negset);
- kfree(expr->type_names);
- }
- kfree(expr);
- }
-}
-
-static int cls_destroy(void *key, void *datum, void *p)
-{
- struct class_datum *cladatum;
- struct constraint_node *constraint, *ctemp;
- struct constraint_expr *e, *etmp;
-
- kfree(key);
- if (datum) {
- cladatum = datum;
- hashtab_map(cladatum->permissions.table, perm_destroy, NULL);
- hashtab_destroy(cladatum->permissions.table);
- constraint = cladatum->constraints;
- while (constraint) {
- e = constraint->expr;
- while (e) {
- etmp = e;
- e = e->next;
- constraint_expr_destroy(etmp);
- }
- ctemp = constraint;
- constraint = constraint->next;
- kfree(ctemp);
- }
-
- constraint = cladatum->validatetrans;
- while (constraint) {
- e = constraint->expr;
- while (e) {
- etmp = e;
- e = e->next;
- constraint_expr_destroy(etmp);
- }
- ctemp = constraint;
- constraint = constraint->next;
- kfree(ctemp);
- }
- kfree(cladatum->comkey);
- }
- kfree(datum);
- return 0;
-}
-
-static int role_destroy(void *key, void *datum, void *p)
-{
- struct role_datum *role;
-
- kfree(key);
- if (datum) {
- role = datum;
- ebitmap_destroy(&role->dominates);
- ebitmap_destroy(&role->types);
- }
- kfree(datum);
- return 0;
-}
-
-static int type_destroy(void *key, void *datum, void *p)
-{
- kfree(key);
- kfree(datum);
- return 0;
-}
-
-static int user_destroy(void *key, void *datum, void *p)
-{
- struct user_datum *usrdatum;
-
- kfree(key);
- if (datum) {
- usrdatum = datum;
- ebitmap_destroy(&usrdatum->roles);
- ebitmap_destroy(&usrdatum->range.level[0].cat);
- ebitmap_destroy(&usrdatum->range.level[1].cat);
- ebitmap_destroy(&usrdatum->dfltlevel.cat);
- }
- kfree(datum);
- return 0;
-}
-
-static int sens_destroy(void *key, void *datum, void *p)
-{
- struct level_datum *levdatum;
-
- kfree(key);
- if (datum) {
- levdatum = datum;
- if (levdatum->level)
- ebitmap_destroy(&levdatum->level->cat);
- kfree(levdatum->level);
- }
- kfree(datum);
- return 0;
-}
-
-static int cat_destroy(void *key, void *datum, void *p)
-{
- kfree(key);
- kfree(datum);
- return 0;
-}
-
-static int (*destroy_f[SYM_NUM]) (void *key, void *datum, void *datap) =
-{
- common_destroy,
- cls_destroy,
- role_destroy,
- type_destroy,
- user_destroy,
- cond_destroy_bool,
- sens_destroy,
- cat_destroy,
-};
-
-static int filenametr_destroy(void *key, void *datum, void *p)
-{
- struct filename_trans *ft = key;
- kfree(ft->name);
- kfree(key);
- kfree(datum);
- cond_resched();
- return 0;
-}
-
-static int range_tr_destroy(void *key, void *datum, void *p)
-{
- struct mls_range *rt = datum;
- kfree(key);
- ebitmap_destroy(&rt->level[0].cat);
- ebitmap_destroy(&rt->level[1].cat);
- kfree(datum);
- cond_resched();
- return 0;
-}
-
-static void ocontext_destroy(struct ocontext *c, int i)
-{
- if (!c)
- return;
-
- context_destroy(&c->context[0]);
- context_destroy(&c->context[1]);
- if (i == OCON_ISID || i == OCON_FS ||
- i == OCON_NETIF || i == OCON_FSUSE)
- kfree(c->u.name);
- kfree(c);
-}
-
-/*
* Free any memory allocated by a policy database structure.
*/
void policydb_destroy(struct policydb *p)
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-24 17:47:11 +0300