net/netfilter/nf_conntrack_expect.c

82 static unsigned int nf_ct_expect_dst_hash(const struct net *n, const struct nf_conntrack_tuple *tuple)
97 	combined.dst_addr = tuple->dst.u3;
99 	combined.dport = (__force __u16)tuple->dst.u.all;
100 	combined.l3num = tuple->src.l3num;
101 	combined.protonum = tuple->dst.protonum;
109 nf_ct_exp_equal(const struct nf_conntrack_tuple *tuple,
114 	return nf_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask) &&
133 		    const struct nf_conntrack_tuple *tuple)
142 	h = nf_ct_expect_dst_hash(net, tuple);
144 		if (nf_ct_exp_equal(tuple, i, zone, net))
151 /* Just find a expectation corresponding to a tuple. */
155 		      const struct nf_conntrack_tuple *tuple)
160 	i = __nf_ct_expect_find(net, zone, tuple);
174 		       const struct nf_conntrack_tuple *tuple, bool unlink)
183 	h = nf_ct_expect_dst_hash(net, tuple);
186 		    nf_ct_exp_equal(tuple, i, zone, net)) {
262 	return nf_ct_tuple_mask_cmp(&a->tuple, &b->tuple, &intersect_mask) &&
270 	return nf_ct_tuple_equal(&a->tuple, &b->tuple) &&
329 	exp->tuple.src.l3num = family;
330 	exp->tuple.dst.protonum = proto;
333 		memcpy(&exp->tuple.src.u3, saddr, len);
334 		if (sizeof(exp->tuple.src.u3) > len)
336 			memset((void *)&exp->tuple.src.u3 + len, 0x00,
337 			       sizeof(exp->tuple.src.u3) - len);
343 		memset(&exp->tuple.src.u3, 0x00, sizeof(exp->tuple.src.u3));
348 		exp->tuple.src.u.all = *src;
351 		exp->tuple.src.u.all = 0;
355 	memcpy(&exp->tuple.dst.u3, daddr, len);
356 	if (sizeof(exp->tuple.dst.u3) > len)
358 		memset((void *)&exp->tuple.dst.u3 + len, 0x00,
359 		       sizeof(exp->tuple.dst.u3) - len);
361 	exp->tuple.dst.u.all = *dst;
391 	unsigned int h = nf_ct_expect_dst_hash(net, &exp->tuple);
449 	h = nf_ct_expect_dst_hash(net, &expect->tuple);
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));