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;
}
/**
* "ars" means add, remove, send
*/
static bool test_pkt_queue_ars(void)
{
struct session_entry *session;
struct sk_buff *skb;
struct tuple tuple4;
struct tcphdr *hdr_tcp;
bool success = true;
/* Prepare */
if (is_error(init_ipv4_tuple(&tuple4, "5.6.7.8", 5678, "192.168.2.1", 8765, L4PROTO_TCP)))
return false;
session = session_create_str_tcp("1::2", 1212, "3::4", 3434, "192.168.2.1", 8765, "5.6.7.8", 5678,
V4_INIT); /* The session entry that is supposed to be created in "tcp_close_state_handle". */
if (!session)
return false;
if (is_error(create_skb4_tcp(&tuple4, &skb, 100, 32))) {
session_return(session);
return false;
}
hdr_tcp = tcp_hdr(skb);
hdr_tcp->syn = true;
hdr_tcp->rst = false;
hdr_tcp->fin = false;
success &= assert_equals_int(0, pktqueue_add(session, skb), "pktqueue_add 1");
success &= assert_equals_int(0, pktqueue_remove(session), "pktqueue_remove 1");
success &= assert_equals_int(-ENOENT, pktqueue_send(session), "pktqueue_send 1");
success &= assert_equals_int(0, icmp64_pop(), "pktqueue not sent an icmp error");
session_return(session);
/* kfree_skb(skb); "skb" kfreed when pktqueue_remove is executed */
return success;
}
