int create_tcp_packet(struct sk_buff **skb, l3_protocol l3_proto, bool syn, bool rst, bool fin)
{
struct tcphdr *hdr_tcp;
struct tuple tuple;
int error;
switch (l3_proto) {
case L3PROTO_IPV4:
error = init_tuple4(&tuple, "8.7.6.5", 8765, "5.6.7.8", 5678, L4PROTO_TCP);
if (error)
return error;
error = create_skb4_tcp(&tuple, skb, 100, 32);
if (error)
return error;
break;
case L3PROTO_IPV6:
error = init_tuple6(&tuple, "1::2", 1212, "3::4", 3434, L4PROTO_TCP);
if (error)
return error;
error = create_skb6_tcp(&tuple, skb, 100, 32);
if (error)
return error;
break;
}
hdr_tcp = tcp_hdr(*skb);
hdr_tcp->syn = syn;
hdr_tcp->rst = rst;
hdr_tcp->fin = fin;
return 0;
}
static bool test_determine_in_tuple_ipv6(void)
{
struct packet pkt;
struct sk_buff *skb;
struct tuple actual, expected;
bool success = true;
if (is_error(init_ipv6_tuple(&expected, "1::2", 1212, "3::4", 3434, L4PROTO_TCP)))
return false;
if (is_error(create_skb6_tcp(&expected, &skb, 8, 32)))
return false;
if (is_error(pkt_init_ipv6(&pkt, skb)))
return false;
success &= assert_equals_int(VERDICT_CONTINUE, determine_in_tuple(&pkt, &actual), "verdict");
success &= assert_equals_tuple(&expected, &actual, "tuple");
kfree_skb(skb);
return success;
}