211 static hook_event_int_t *hook_event_find(hook_family_int_t *hfi, char *event);
212 static void hook_event_free(hook_event_int_t *hei, hook_family_int_t *hfi);
215 static void hook_family_free(hook_family_int_t *hfi, hook_stack_t *hks);
230 static void hook_init_kstats(hook_family_int_t *hfi, hook_event_int_t *hei,
641 	hook_family_int_t *hfi;  in hook_stack_notify_register()  local
678 		SLIST_FOREACH(hfi, &hks->hks_familylist, hfi_entry) {  in hook_stack_notify_register()
679 			if (hfi->hfi_condemned || hfi->hfi_shutdown)  in hook_stack_notify_register()
682 			    hfi->hfi_family.hf_name);  in hook_stack_notify_register()
707 	hook_family_int_t *hfi;  in hook_stack_notify_unregister()  local
738 			SLIST_FOREACH(hfi, &hks->hks_familylist, hfi_entry) {  in hook_stack_notify_unregister()
740 				    hfi->hfi_family.hf_name);  in hook_stack_notify_unregister()
799 hook_run(hook_family_int_t *hfi, hook_event_token_t token, hook_data_t info)  in hook_run()  argument
816 	CVW_ENTER_READ(&hfi->hfi_lock);  in hook_run()
837 	CVW_EXIT_READ(&hfi->hfi_lock);  in hook_run()
868 	hook_family_int_t *hfi, *new;  in hook_family_add()  local
888 	hfi = hook_family_find(hf->hf_name, hks);  in hook_family_add()
889 	if (hfi != NULL) {  in hook_family_add()
942 hook_family_remove(hook_family_int_t *hfi)  in hook_family_remove()  argument
947 	ASSERT(hfi != NULL);  in hook_family_remove()
948 	hks = hfi->hfi_stack;  in hook_family_remove()
950 	CVW_ENTER_WRITE(&hfi->hfi_lock);  in hook_family_remove()
951 	notifydone = hfi->hfi_shutdown;  in hook_family_remove()
952 	hfi->hfi_shutdown = B_TRUE;  in hook_family_remove()
953 	CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_family_remove()
970 	if (!SLIST_EMPTY(&hfi->hfi_head) || !TAILQ_EMPTY(&hfi->hfi_nhead)) {  in hook_family_remove()
971 		hfi->hfi_condemned = B_TRUE;  in hook_family_remove()
973 		VERIFY(hook_wait_destroy(&hfi->hfi_waiter) == 0);  in hook_family_remove()
978 		hfi->hfi_condemned = B_FALSE;  in hook_family_remove()
983 		hook_stack_notify_run(hks, hfi->hfi_family.hf_name,  in hook_family_remove()
992 	if (!hfi->hfi_condemned)  in hook_family_remove()
993 		hook_family_free(hfi, hks);  in hook_family_remove()
1007 hook_family_free(hook_family_int_t *hfi, hook_stack_t *hks)  in hook_family_free()  argument
1017 	ASSERT(hfi != NULL);  in hook_family_free()
1022 		SLIST_REMOVE(&hks->hks_familylist, hfi, hook_family_int,  in hook_family_free()
1029 	if (hfi->hfi_family.hf_name != NULL) {  in hook_family_free()
1030 		kmem_free(hfi->hfi_family.hf_name,  in hook_family_free()
1031 		    strlen(hfi->hfi_family.hf_name) + 1);  in hook_family_free()
1035 	kmem_free(hfi, sizeof (*hfi));  in hook_family_free()
1054 hook_family_shutdown(hook_family_int_t *hfi)  in hook_family_shutdown()  argument
1059 	ASSERT(hfi != NULL);  in hook_family_shutdown()
1060 	hks = hfi->hfi_stack;  in hook_family_shutdown()
1062 	CVW_ENTER_WRITE(&hfi->hfi_lock);  in hook_family_shutdown()
1063 	notifydone = hfi->hfi_shutdown;  in hook_family_shutdown()
1064 	hfi->hfi_shutdown = B_TRUE;  in hook_family_shutdown()
1065 	CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_family_shutdown()
1081 		hook_stack_notify_run(hks, hfi->hfi_family.hf_name,  in hook_family_shutdown()
1133 	hook_family_int_t *hfi = NULL;  in hook_family_find()  local
1137 	SLIST_FOREACH(hfi, &hks->hks_familylist, hfi_entry) {  in hook_family_find()
1138 		if (strcmp(hfi->hfi_family.hf_name, family) == 0)  in hook_family_find()
1141 	return (hfi);  in hook_family_find()
1163 hook_family_notify_register(hook_family_int_t *hfi,  in hook_family_notify_register()  argument
1171 	ASSERT(hfi != NULL);  in hook_family_notify_register()
1173 	hks = hfi->hfi_stack;  in hook_family_notify_register()
1177 	if ((hfi->hfi_stack->hks_shutdown != 0) ||  in hook_family_notify_register()
1178 	    hfi->hfi_condemned || hfi->hfi_shutdown) {  in hook_family_notify_register()
1183 	CVW_ENTER_WRITE(&hfi->hfi_lock);  in hook_family_notify_register()
1184 	canrun = (hook_wait_setflag(&hfi->hfi_waiter, FWF_ADD_WAIT_MASK,  in hook_family_notify_register()
1186 	error = hook_notify_register(&hfi->hfi_nhead, callback, arg);  in hook_family_notify_register()
1187 	CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_family_notify_register()
1192 		SLIST_FOREACH(hei, &hfi->hfi_head, hei_entry) {  in hook_family_notify_register()
1194 			    hfi->hfi_family.hf_name, NULL,  in hook_family_notify_register()
1200 		hook_wait_unsetflag(&hfi->hfi_waiter, FWF_ADD_ACTIVE);  in hook_family_notify_register()
1229 hook_family_notify_unregister(hook_family_int_t *hfi,  in hook_family_notify_unregister()  argument
1240 	CVW_ENTER_WRITE(&hfi->hfi_lock);  in hook_family_notify_unregister()
1242 	(void) hook_wait_setflag(&hfi->hfi_waiter, FWF_DEL_WAIT_MASK,  in hook_family_notify_unregister()
1245 	error = hook_notify_unregister(&hfi->hfi_nhead, callback, &arg);  in hook_family_notify_unregister()
1247 	hook_wait_unsetflag(&hfi->hfi_waiter, FWF_DEL_ACTIVE);  in hook_family_notify_unregister()
1253 	if ((error == 0) && hfi->hfi_condemned &&  in hook_family_notify_unregister()
1254 	    SLIST_EMPTY(&hfi->hfi_head) && TAILQ_EMPTY(&hfi->hfi_nhead)) {  in hook_family_notify_unregister()
1261 		canrun = (hook_wait_setflag(&hfi->hfi_waiter, FWF_ADD_WAIT_MASK,  in hook_family_notify_unregister()
1265 	CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_family_notify_unregister()
1268 		SLIST_FOREACH(hei, &hfi->hfi_head, hei_entry) {  in hook_family_notify_unregister()
1270 			    hfi->hfi_family.hf_name, NULL,  in hook_family_notify_unregister()
1274 		hook_wait_unsetflag(&hfi->hfi_waiter, FWF_ADD_ACTIVE);  in hook_family_notify_unregister()
1276 		hook_family_free(hfi, hfi->hfi_stack);  in hook_family_notify_unregister()
1294 hook_event_add(hook_family_int_t *hfi, hook_event_t *he)  in hook_event_add()  argument
1299 	ASSERT(hfi != NULL);  in hook_event_add()
1307 	hks = hfi->hfi_stack;  in hook_event_add()
1310 	hks = hfi->hfi_stack;  in hook_event_add()
1325 	CVW_ENTER_WRITE(&hfi->hfi_lock);  in hook_event_add()
1327 	if (hfi->hfi_condemned || hfi->hfi_shutdown) {  in hook_event_add()
1328 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_event_add()
1335 	if (hook_wait_setflag(&hfi->hfi_waiter, FWF_ADD_WAIT_MASK,  in hook_event_add()
1337 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_event_add()
1344 	hook_event_init_kstats(hfi, new);  in hook_event_add()
1348 	SLIST_INSERT_HEAD(&hfi->hfi_head, new, hei_entry);  in hook_event_add()
1350 	CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_event_add()
1352 	hook_notify_run(&hfi->hfi_nhead,  in hook_event_add()
1353 	    hfi->hfi_family.hf_name, NULL, he->he_name, HN_REGISTER);  in hook_event_add()
1355 	hook_wait_unsetflag(&hfi->hfi_waiter, FWF_ADD_ACTIVE);  in hook_event_add()
1373 hook_event_init_kstats(hook_family_int_t *hfi, hook_event_int_t *hei)  in hook_event_init_kstats()  argument
1382 	hks = hfi->hfi_stack;  in hook_event_init_kstats()
1383 	hei->hei_kstatp = kstat_create_netstack(hfi->hfi_family.hf_name, 0,  in hook_event_init_kstats()
1414 hook_event_remove(hook_family_int_t *hfi, hook_event_t *he)  in hook_event_remove()  argument
1420 	ASSERT(hfi != NULL);  in hook_event_remove()
1423 	CVW_ENTER_WRITE(&hfi->hfi_lock);  in hook_event_remove()
1430 	if (hook_wait_setflag(&hfi->hfi_waiter, FWF_DEL_WAIT_MASK,  in hook_event_remove()
1432 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_event_remove()
1436 	hei = hook_event_find(hfi, he->he_name);  in hook_event_remove()
1438 		hook_wait_unsetflag(&hfi->hfi_waiter, FWF_DEL_ACTIVE);  in hook_event_remove()
1439 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_event_remove()
1471 		if (hfi->hfi_condemned && SLIST_EMPTY(&hfi->hfi_head) &&  in hook_event_remove()
1472 		    TAILQ_EMPTY(&hfi->hfi_nhead))  in hook_event_remove()
1476 	CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_event_remove()
1479 		hook_notify_run(&hfi->hfi_nhead,  in hook_event_remove()
1480 		    hfi->hfi_family.hf_name, NULL, he->he_name, HN_UNREGISTER);  in hook_event_remove()
1482 	hook_wait_unsetflag(&hfi->hfi_waiter, FWF_DEL_ACTIVE);  in hook_event_remove()
1485 		hook_event_free(hei, hfi);  in hook_event_remove()
1487 			hook_family_free(hfi, hfi->hfi_stack);  in hook_event_remove()
1503 hook_event_shutdown(hook_family_int_t *hfi, hook_event_t *he)  in hook_event_shutdown()  argument
1508 	ASSERT(hfi != NULL);  in hook_event_shutdown()
1511 	CVW_ENTER_WRITE(&hfi->hfi_lock);  in hook_event_shutdown()
1518 	if (hook_wait_setflag(&hfi->hfi_waiter, FWF_DEL_WAIT_MASK,  in hook_event_shutdown()
1520 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_event_shutdown()
1524 	hei = hook_event_find(hfi, he->he_name);  in hook_event_shutdown()
1526 		hook_wait_unsetflag(&hfi->hfi_waiter, FWF_DEL_ACTIVE);  in hook_event_shutdown()
1527 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_event_shutdown()
1536 	CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_event_shutdown()
1539 		hook_notify_run(&hfi->hfi_nhead,  in hook_event_shutdown()
1540 		    hfi->hfi_family.hf_name, NULL, he->he_name, HN_UNREGISTER);  in hook_event_shutdown()
1542 	hook_wait_unsetflag(&hfi->hfi_waiter, FWF_DEL_ACTIVE);  in hook_event_shutdown()
1555 hook_event_free(hook_event_int_t *hei, hook_family_int_t *hfi)  in hook_event_free()  argument
1561 	if (hfi != NULL) {  in hook_event_free()
1562 		CVW_ENTER_WRITE(&hfi->hfi_lock);  in hook_event_free()
1566 		SLIST_REMOVE(&hfi->hfi_head, hei, hook_event_int, hei_entry);  in hook_event_free()
1567 		if (hfi->hfi_condemned && SLIST_EMPTY(&hfi->hfi_head) &&  in hook_event_free()
1568 		    TAILQ_EMPTY(&hfi->hfi_nhead)) {  in hook_event_free()
1573 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_event_free()
1577 		ASSERT(hfi != NULL);  in hook_event_free()
1580 		    hfi->hfi_stack->hks_netstackid);  in hook_event_free()
1588 		hook_family_free(hfi, hfi->hfi_stack);  in hook_event_free()
1602 	hook_family_int_t *hfi;  in hook_event_checkdup()  local
1608 	SLIST_FOREACH(hfi, &hks->hks_familylist, hfi_entry) {  in hook_event_checkdup()
1609 		SLIST_FOREACH(hei, &hfi->hfi_head, hei_entry) {  in hook_event_checkdup()
1656 hook_event_find(hook_family_int_t *hfi, char *event)  in hook_event_find()  argument
1660 	ASSERT(hfi != NULL);  in hook_event_find()
1663 	SLIST_FOREACH(hei, &hfi->hfi_head, hei_entry) {  in hook_event_find()
1684 hook_event_notify_register(hook_family_int_t *hfi, char *event,  in hook_event_notify_register()  argument
1694 	hks = hfi->hfi_stack;  in hook_event_notify_register()
1701 	CVW_ENTER_READ(&hfi->hfi_lock);  in hook_event_notify_register()
1703 	if (hfi->hfi_condemned || hfi->hfi_shutdown) {  in hook_event_notify_register()
1704 		CVW_EXIT_READ(&hfi->hfi_lock);  in hook_event_notify_register()
1709 	hei = hook_event_find(hfi, event);  in hook_event_notify_register()
1711 		CVW_EXIT_READ(&hfi->hfi_lock);  in hook_event_notify_register()
1717 		CVW_EXIT_READ(&hfi->hfi_lock);  in hook_event_notify_register()
1728 	CVW_EXIT_READ(&hfi->hfi_lock);  in hook_event_notify_register()
1734 			    hfi->hfi_family.hf_name, hei->hei_event->he_name,  in hook_event_notify_register()
1756 hook_event_notify_unregister(hook_family_int_t *hfi, char *event,  in hook_event_notify_unregister()  argument
1768 	CVW_ENTER_READ(&hfi->hfi_lock);  in hook_event_notify_unregister()
1770 	hei = hook_event_find(hfi, event);  in hook_event_notify_unregister()
1772 		CVW_EXIT_READ(&hfi->hfi_lock);  in hook_event_notify_unregister()
1806 	CVW_EXIT_READ(&hfi->hfi_lock);  in hook_event_notify_unregister()
1811 			    hfi->hfi_family.hf_name, hei->hei_event->he_name,  in hook_event_notify_unregister()
1824 		hook_event_free(hei, hfi);  in hook_event_notify_unregister()
1841 hook_event_notify_run(hook_event_int_t *hei, hook_family_int_t *hfi,  in hook_event_notify_run()  argument
1845 	hook_notify_run(&hei->hei_nhead, hfi->hfi_family.hf_name,  in hook_event_notify_run()
1859 hook_register(hook_family_int_t *hfi, char *event, hook_t *h)  in hook_register()  argument
1865 	ASSERT(hfi != NULL);  in hook_register()
1869 	if (hfi->hfi_stack->hks_shutdown)  in hook_register()
1882 	CVW_ENTER_WRITE(&hfi->hfi_lock);  in hook_register()
1884 	hei = hook_event_find(hfi, event);  in hook_register()
1886 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_register()
1887 		hook_int_free(new, hfi->hfi_stack->hks_netstackid);  in hook_register()
1913 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_register()
1914 		hook_int_free(new, hfi->hfi_stack->hks_netstackid);  in hook_register()
1924 		hook_init_kstats(hfi, hei, new);  in hook_register()
1928 	CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_register()
1936 		hook_event_notify_run(hei, hfi, event, h->h_name, HN_REGISTER);  in hook_register()
2151 hook_unregister(hook_family_int_t *hfi, char *event, hook_t *h)  in hook_unregister()  argument
2157 	ASSERT(hfi != NULL);  in hook_unregister()
2160 	CVW_ENTER_WRITE(&hfi->hfi_lock);  in hook_unregister()
2162 	hei = hook_event_find(hfi, event);  in hook_unregister()
2164 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_unregister()
2174 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_unregister()
2181 		CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_unregister()
2202 	CVW_EXIT_WRITE(&hfi->hfi_lock);  in hook_unregister()
2208 	hook_event_notify_run(hei, hfi, event, h->h_name, HN_UNREGISTER);  in hook_unregister()
2211 	hook_int_free(hi, hfi->hfi_stack->hks_netstackid);  in hook_unregister()
2214 		hook_event_free(hei, hfi);  in hook_unregister()
2327 hook_init_kstats(hook_family_int_t *hfi, hook_event_int_t *hei, hook_int_t *hi)  in hook_init_kstats()  argument
2342 	kslen = strlen(hfi->hfi_family.hf_name) +  in hook_init_kstats()
2347 	    hfi->hfi_family.hf_name, hei->hei_event->he_name);  in hook_init_kstats()
2349 	hks = hfi->hfi_stack;  in hook_init_kstats()