48  * zone_label is the UMA zone from which most labels are allocated.  Label
50  * slot on first use, even if the policy is loaded after the label is
62 	zone_label = uma_zcreate("MAC labels", sizeof(struct label),  in mac_labelzone_init()
73 mac_init_label(struct label *label)  in mac_init_label()  argument
76 	bzero(label, sizeof(*label));  in mac_init_label()
77 	label->l_flags = MAC_FLAG_INITIALIZED;  in mac_init_label()
81 mac_destroy_label(struct label *label)  in mac_destroy_label()  argument
84 	KASSERT(label->l_flags & MAC_FLAG_INITIALIZED,  in mac_destroy_label()
85 	    ("destroying uninitialized label"));  in mac_destroy_label()
88 	bzero(label, sizeof(*label));  in mac_destroy_label()
90 	label->l_flags &= ~MAC_FLAG_INITIALIZED;  in mac_destroy_label()
97 	struct label *label;  in mac_labelzone_ctor()  local
99 	KASSERT(size == sizeof(*label), ("mac_labelzone_ctor: wrong size\n"));  in mac_labelzone_ctor()
100 	label = mem;  in mac_labelzone_ctor()
101 	mac_init_label(label);  in mac_labelzone_ctor()
108 	struct label *label;  in mac_labelzone_dtor()  local
110 	KASSERT(size == sizeof(*label), ("mac_labelzone_dtor: wrong size\n"));  in mac_labelzone_dtor()
111 	label = mem;  in mac_labelzone_dtor()
112 	mac_destroy_label(label);  in mac_labelzone_dtor()
115 struct label *
123 mac_labelzone_free(struct label *label)  in mac_labelzone_free()  argument
126 	uma_zfree(zone_label, label);  in mac_labelzone_free()
130  * Functions used by policy modules to get and set label values.
133 mac_label_get(struct label *l, int slot)  in mac_label_get()
136 	KASSERT(l != NULL, ("mac_label_get: NULL label"));  in mac_label_get()
142 mac_label_set(struct label *l, int slot, intptr_t v)  in mac_label_set()
145 	KASSERT(l != NULL, ("mac_label_set: NULL label"));  in mac_label_set()