47 void nf_ct_unlink_expect_report(struct nf_conntrack_expect *exp,  in nf_ct_unlink_expect_report()  argument
50 	struct nf_conn_help *master_help = nfct_help(exp->master);  in nf_ct_unlink_expect_report()
51 	struct net *net = nf_ct_exp_net(exp);  in nf_ct_unlink_expect_report()
55 	WARN_ON(timer_pending(&exp->timeout));  in nf_ct_unlink_expect_report()
57 	hlist_del_rcu(&exp->hnode);  in nf_ct_unlink_expect_report()
62 	hlist_del_rcu(&exp->lnode);  in nf_ct_unlink_expect_report()
63 	master_help->expecting[exp->class]--;  in nf_ct_unlink_expect_report()
65 	nf_ct_expect_event_report(IPEXP_DESTROY, exp, portid, report);  in nf_ct_unlink_expect_report()
66 	nf_ct_expect_put(exp);  in nf_ct_unlink_expect_report()
74 	struct nf_conntrack_expect *exp = from_timer(exp, t, timeout);  in nf_ct_expectation_timed_out()  local
77 	nf_ct_unlink_expect(exp);  in nf_ct_expectation_timed_out()
79 	nf_ct_expect_put(exp);  in nf_ct_expectation_timed_out()
119 bool nf_ct_remove_expect(struct nf_conntrack_expect *exp)  in nf_ct_remove_expect()  argument
121 	if (del_timer(&exp->timeout)) {  in nf_ct_remove_expect()
122 		nf_ct_unlink_expect(exp);  in nf_ct_remove_expect()
123 		nf_ct_expect_put(exp);  in nf_ct_remove_expect()
177 	struct nf_conntrack_expect *i, *exp = NULL;  in nf_ct_find_expectation()  local
187 			exp = i;  in nf_ct_find_expectation()
191 	if (!exp)  in nf_ct_find_expectation()
199 	if (!nf_ct_is_confirmed(exp->master))  in nf_ct_find_expectation()
210 	if (unlikely(nf_ct_is_dying(exp->master) ||  in nf_ct_find_expectation()
211 		     !refcount_inc_not_zero(&exp->master->ct_general.use)))  in nf_ct_find_expectation()
214 	if (exp->flags & NF_CT_EXPECT_PERMANENT || !unlink) {  in nf_ct_find_expectation()
215 		refcount_inc(&exp->use);  in nf_ct_find_expectation()
216 		return exp;  in nf_ct_find_expectation()
217 	} else if (del_timer(&exp->timeout)) {  in nf_ct_find_expectation()
218 		nf_ct_unlink_expect(exp);  in nf_ct_find_expectation()
219 		return exp;  in nf_ct_find_expectation()
222 	nf_ct_put(exp->master);  in nf_ct_find_expectation()
231 	struct nf_conntrack_expect *exp;  in nf_ct_remove_expectations()  local
239 	hlist_for_each_entry_safe(exp, next, &help->expectations, lnode) {  in nf_ct_remove_expectations()
240 		nf_ct_remove_expect(exp);  in nf_ct_remove_expectations()
287 void nf_ct_unexpect_related(struct nf_conntrack_expect *exp)  in nf_ct_unexpect_related()  argument
290 	nf_ct_remove_expect(exp);  in nf_ct_unexpect_related()
312 void nf_ct_expect_init(struct nf_conntrack_expect *exp, unsigned int class,  in nf_ct_expect_init()  argument
325 	exp->flags = 0;  in nf_ct_expect_init()
326 	exp->class = class;  in nf_ct_expect_init()
327 	exp->expectfn = NULL;  in nf_ct_expect_init()
328 	exp->helper = NULL;  in nf_ct_expect_init()
329 	exp->tuple.src.l3num = family;  in nf_ct_expect_init()
330 	exp->tuple.dst.protonum = proto;  in nf_ct_expect_init()
333 		memcpy(&exp->tuple.src.u3, saddr, len);  in nf_ct_expect_init()
334 		if (sizeof(exp->tuple.src.u3) > len)  in nf_ct_expect_init()
336 			memset((void *)&exp->tuple.src.u3 + len, 0x00,  in nf_ct_expect_init()
337 			       sizeof(exp->tuple.src.u3) - len);  in nf_ct_expect_init()
338 		memset(&exp->mask.src.u3, 0xFF, len);  in nf_ct_expect_init()
339 		if (sizeof(exp->mask.src.u3) > len)  in nf_ct_expect_init()
340 			memset((void *)&exp->mask.src.u3 + len, 0x00,  in nf_ct_expect_init()
341 			       sizeof(exp->mask.src.u3) - len);  in nf_ct_expect_init()
343 		memset(&exp->tuple.src.u3, 0x00, sizeof(exp->tuple.src.u3));  in nf_ct_expect_init()
344 		memset(&exp->mask.src.u3, 0x00, sizeof(exp->mask.src.u3));  in nf_ct_expect_init()
348 		exp->tuple.src.u.all = *src;  in nf_ct_expect_init()
349 		exp->mask.src.u.all = htons(0xFFFF);  in nf_ct_expect_init()
351 		exp->tuple.src.u.all = 0;  in nf_ct_expect_init()
352 		exp->mask.src.u.all = 0;  in nf_ct_expect_init()
355 	memcpy(&exp->tuple.dst.u3, daddr, len);  in nf_ct_expect_init()
356 	if (sizeof(exp->tuple.dst.u3) > len)  in nf_ct_expect_init()
358 		memset((void *)&exp->tuple.dst.u3 + len, 0x00,  in nf_ct_expect_init()
359 		       sizeof(exp->tuple.dst.u3) - len);  in nf_ct_expect_init()
361 	exp->tuple.dst.u.all = *dst;  in nf_ct_expect_init()
364 	memset(&exp->saved_addr, 0, sizeof(exp->saved_addr));  in nf_ct_expect_init()
365 	memset(&exp->saved_proto, 0, sizeof(exp->saved_proto));  in nf_ct_expect_init()
372 	struct nf_conntrack_expect *exp;  in nf_ct_expect_free_rcu()  local
374 	exp = container_of(head, struct nf_conntrack_expect, rcu);  in nf_ct_expect_free_rcu()
375 	kmem_cache_free(nf_ct_expect_cachep, exp);  in nf_ct_expect_free_rcu()
378 void nf_ct_expect_put(struct nf_conntrack_expect *exp)  in nf_ct_expect_put()  argument
380 	if (refcount_dec_and_test(&exp->use))  in nf_ct_expect_put()
381 		call_rcu(&exp->rcu, nf_ct_expect_free_rcu);  in nf_ct_expect_put()
385 static void nf_ct_expect_insert(struct nf_conntrack_expect *exp)  in nf_ct_expect_insert()  argument
388 	struct nf_conn_help *master_help = nfct_help(exp->master);  in nf_ct_expect_insert()
390 	struct net *net = nf_ct_exp_net(exp);  in nf_ct_expect_insert()
391 	unsigned int h = nf_ct_expect_dst_hash(net, &exp->tuple);  in nf_ct_expect_insert()
394 	refcount_add(2, &exp->use);  in nf_ct_expect_insert()
396 	timer_setup(&exp->timeout, nf_ct_expectation_timed_out, 0);  in nf_ct_expect_insert()
400 		exp->timeout.expires = jiffies +  in nf_ct_expect_insert()
401 			helper->expect_policy[exp->class].timeout * HZ;  in nf_ct_expect_insert()
403 	add_timer(&exp->timeout);  in nf_ct_expect_insert()
405 	hlist_add_head_rcu(&exp->lnode, &master_help->expectations);  in nf_ct_expect_insert()
406 	master_help->expecting[exp->class]++;  in nf_ct_expect_insert()
408 	hlist_add_head_rcu(&exp->hnode, &nf_ct_expect_hash[h]);  in nf_ct_expect_insert()
420 	struct nf_conntrack_expect *exp, *last = NULL;  in evict_oldest_expect()  local
422 	hlist_for_each_entry(exp, &master_help->expectations, lnode) {  in evict_oldest_expect()
423 		if (exp->class == new->class)  in evict_oldest_expect()
424 			last = exp;  in evict_oldest_expect()
513 	struct nf_conntrack_expect *exp;  in nf_ct_expect_iterate_destroy()  local
520 		hlist_for_each_entry_safe(exp, next,  in nf_ct_expect_iterate_destroy()
523 			if (iter(exp, data) && del_timer(&exp->timeout)) {  in nf_ct_expect_iterate_destroy()
524 				nf_ct_unlink_expect(exp);  in nf_ct_expect_iterate_destroy()
525 				nf_ct_expect_put(exp);  in nf_ct_expect_iterate_destroy()
539 	struct nf_conntrack_expect *exp;  in nf_ct_expect_iterate_net()  local
546 		hlist_for_each_entry_safe(exp, next,  in nf_ct_expect_iterate_net()
550 			if (!net_eq(nf_ct_exp_net(exp), net))  in nf_ct_expect_iterate_net()
553 			if (iter(exp, data) && del_timer(&exp->timeout)) {  in nf_ct_expect_iterate_net()
554 				nf_ct_unlink_expect_report(exp, portid, report);  in nf_ct_expect_iterate_net()
555 				nf_ct_expect_put(exp);  in nf_ct_expect_iterate_net()