net/netfilter/nf_conntrack_expect.c

234 	/* Optimization: most connection never expect any others. */
431 static inline int __nf_ct_expect_check(struct nf_conntrack_expect *expect,
437 	struct nf_conn *master = expect->master;
440 	struct net *net = nf_ct_exp_net(expect);
449 	h = nf_ct_expect_dst_hash(net, &expect->tuple);
451 		if (master_matches(i, expect, flags) &&
452 		    expect_matches(i, expect)) {
453 			if (i->class != expect->class ||
454 			    i->master != expect->master)
459 		} else if (expect_clash(i, expect)) {
468 		p = &helper->expect_policy[expect->class];
470 		    master_help->expecting[expect->class] >= p->max_expected) {
471 			evict_oldest_expect(master, expect);
472 			if (master_help->expecting[expect->class]
489 int nf_ct_expect_related_report(struct nf_conntrack_expect *expect,
495 	ret = __nf_ct_expect_check(expect, flags);
499 	nf_ct_expect_insert(expect);
502 	nf_ct_expect_event_report(IPEXP_NEW, expect, portid, report);
628 	struct nf_conntrack_expect *expect;
633 	expect = hlist_entry(n, struct nf_conntrack_expect, hnode);
635 	if (expect->timeout.function)
636 		seq_printf(s, "%ld ", timer_pending(&expect->timeout)
637 			   ? (long)(expect->timeout.expires - jiffies)/HZ : 0);
641 		   expect->tuple.src.l3num,
642 		   expect->tuple.dst.protonum);
643 	print_tuple(s, &expect->tuple,
644 		    nf_ct_l4proto_find(expect->tuple.dst.protonum));
646 	if (expect->flags & NF_CT_EXPECT_PERMANENT) {
650 	if (expect->flags & NF_CT_EXPECT_INACTIVE) {
654 	if (expect->flags & NF_CT_EXPECT_USERSPACE)
657 	helper = rcu_dereference(nfct_help(expect->master)->helper);
659 		seq_printf(s, "%s%s", expect->flags ? " " : "", helper->name);
660 		if (helper->expect_policy[expect->class].name[0])
662 				   helper->expect_policy[expect->class].name);