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selinux: generalize evaluate_cond_node()

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Both callers iterate the cond_list and call it for each node - turn it
into evaluate_cond_nodes(), which does the iteration for them.

Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Ondrej Mosnacek 2020-02-03 12:27:23 +01:00 committed by Paul Moore
parent 8794d78390
commit 89d4d7c88d
3 changed files with 12 additions and 6 deletions
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10
security/selinux/ss/conditional.c
View File

@ -86,7 +86,7 @@ static int cond_evaluate_expr(struct policydb *p, struct cond_expr *expr)
* list appropriately. If the result of the expression is undefined
* all of the rules are disabled for safety.
*/
void evaluate_cond_node(struct policydb *p, struct cond_node *node)
static void evaluate_cond_node(struct policydb *p, struct cond_node *node)
{
struct avtab_node *avnode;
int new_state;
@ -117,6 +117,14 @@ void evaluate_cond_node(struct policydb *p, struct cond_node *node)
}
}
void evaluate_cond_nodes(struct policydb *p)
{
u32 i;
for (i = 0; i < p->cond_list_len; i++)
evaluate_cond_node(p, &p->cond_list[i]);
}
int cond_policydb_init(struct policydb *p)
{
int rc;

2
security/selinux/ss/conditional.h
View File

@ -78,6 +78,6 @@ void cond_compute_av(struct avtab *ctab, struct avtab_key *key,
struct av_decision *avd, struct extended_perms *xperms);
void cond_compute_xperms(struct avtab *ctab, struct avtab_key *key,
struct extended_perms_decision *xpermd);
void evaluate_cond_node(struct policydb *p, struct cond_node *node);
void evaluate_cond_nodes(struct policydb *p);
#endif /* _CONDITIONAL_H_ */

6
security/selinux/ss/services.c
View File

@ -2957,8 +2957,7 @@ int security_set_bools(struct selinux_state *state, u32 len, int *values)
policydb->bool_val_to_struct[i]->state = 0;
}
for (i = 0; i < policydb->cond_list_len; i++)
evaluate_cond_node(policydb, &policydb->cond_list[i]);
evaluate_cond_nodes(policydb);
seqno = ++state->ss->latest_granting;
rc = 0;
@ -3011,8 +3010,7 @@ static int security_preserve_bools(struct selinux_state *state,
if (booldatum)
booldatum->state = bvalues[i];
}
for (i = 0; i < policydb->cond_list_len; i++)
evaluate_cond_node(policydb, &policydb->cond_list[i]);
evaluate_cond_nodes(policydb);
out:
if (bnames) {