constraint_node
struct constraint_node *next; /* next constraint */
static int read_cons_helper(struct policydb *p, struct constraint_node **nodep,
struct constraint_node *c, *lc;
struct constraint_node *constraint, *ctemp;
static int write_cons_helper(struct policydb *p, struct constraint_node *node,
struct constraint_node *c;
struct constraint_node *c;
struct constraint_node *constraints; /* constraints on class perms */
struct constraint_node *validatetrans; /* special transition rules */
struct constraint_node *constraint;
struct constraint_node *constraint;