/*
* A V6 RST packet arrives.
*/
static bool test_tcp_trans_state_handle_v6rst(void)
{
struct session_entry *session;
struct expire_timer *expirer;
struct packet pkt;
struct sk_buff *skb;
bool success = true;
/* Prepare */
session = session_create_str_tcp("1::2", 1212, "3::4", 3434, "5.6.7.8", 5678, "8.7.6.5", 8765,
TRANS);
if (!session)
return false;
if (is_error(create_tcp_packet(&skb, L3PROTO_IPV6, false, true, false)))
return false;
if (is_error(pkt_init_ipv6(&pkt, skb)))
return false;
/* Evaluate */
success &= assert_equals_int(0, tcp_trans_state_handle(&pkt, session, &expirer), "V6 rst-result");
success &= assert_equals_u8(TRANS, session->state, "V6 rst-state");
success &= assert_null(session->expirer, "null expirer");
kfree_skb(skb);
return success;
}
/*
* Something else arrives.
*/
static bool test_tcp_trans_state_handle_else(void)
{
struct session_entry *session;
struct expire_timer *expirer;
struct packet pkt;
struct sk_buff *skb;
unsigned long timeout = 0;
bool success = true;
/* Prepare */
session = session_create_str_tcp("1::2", 1212, "3::4", 3434, "5.6.7.8", 5678, "8.7.6.5", 8765,
TRANS);
if (!session)
return false;
if (is_error(create_tcp_packet(&skb, L3PROTO_IPV4, true, false, false)))
return false;
if (is_error(pkt_init_ipv4(&pkt, skb)))
return false;
/* Evaluate */
success &= assert_equals_int(0, tcp_trans_state_handle(&pkt, session, &expirer), "else-result");
success &= assert_equals_u8(ESTABLISHED, session->state, "else-state");
success &= assert_equals_int(0, sessiondb_get_timeout(session, &timeout), "else-toresult");
success &= assert_equals_ulong(TCPEST_TIMEOUT, timeout, "else-lifetime");
kfree_skb(skb);
return success;
}
/*
* A V6 FIN packet arrives.
*/
static bool test_tcp_v4_fin_rcv_state_handle_v6fin(void)
{
struct session_entry *session;
struct expire_timer *expirer;
struct packet pkt;
struct sk_buff *skb;
unsigned long timeout = 0;
bool success = true;
/* Prepare */
session = session_create_str_tcp("1::2", 1212, "3::4", 3434, "5.6.7.8", 5678, "8.7.6.5", 8765,
V4_FIN_RCV);
if (!session)
return false;
if (is_error(create_tcp_packet(&skb, L3PROTO_IPV6, false, false, true)))
return false;
if (is_error(pkt_init_ipv6(&pkt, skb)))
return false;
/* Evaluate */
success &= assert_equals_int(0, tcp_v4_fin_rcv_state_handle(&pkt, session, &expirer), "V6 fin-result");
success &= assert_equals_u8(V4_FIN_V6_FIN_RCV, session->state, "V6 fin-state");
success &= assert_equals_int(0, sessiondb_get_timeout(session, &timeout), "V6 fin-toresult");
success &= assert_equals_ulong(TCPTRANS_TIMEOUT, timeout, "V6 fin-lifetime");
kfree_skb(skb);
return success;
}
/*
* A V4 FIN packet arrives.
*/
static bool test_tcp_established_state_handle_v4fin(void)
{
struct session_entry *session;
struct expire_timer *expirer;
struct packet pkt;
struct sk_buff *skb;
bool success = true;
/* Prepare */
session = session_create_str_tcp("1::2", 1212, "3::4", 3434, "5.6.7.8", 5678, "8.7.6.5", 8765,
ESTABLISHED);
if (!session)
return false;
if (is_error(create_tcp_packet(&skb, L3PROTO_IPV4, false, false, true)))
return false;
if (is_error(pkt_init_ipv4(&pkt, skb)))
return false;
/* Evaluate */
success &= assert_equals_int(0, tcp_established_state_handle(&pkt, session, &expirer), "result");
success &= assert_equals_u8(V4_FIN_RCV, session->state, "V4 fin-state");
success &= assert_null(session->expirer, "null expirer");
kfree_skb(skb);
return success;
}
/*
* A V6 RST packet arrives.
*/
static bool test_tcp_established_state_handle_v6rst(void)
{
struct session_entry *session;
struct expire_timer *expirer;
struct sk_buff *skb;
unsigned long timeout;
bool success = true;
/* Prepare */
session = session_create_str_tcp("1::2", 1212, "3::4", 3434, "5.6.7.8", 5678, "8.7.6.5", 8765,
ESTABLISHED);
if (!session)
return false;
if (is_error(create_tcp_packet(&skb, L3PROTO_IPV6, false, true, false)))
return false;
/* Evaluate */
success &= assert_equals_int(0, tcp_established_state_handle(skb, session, &expirer), "result");
success &= assert_equals_u8(TRANS, session->state, "V6 rst-state");
success &= assert_equals_int(0, sessiondb_get_timeout(session, &timeout), "V6 rst-toresult");
success &= assert_equals_ulong(TCPTRANS_TIMEOUT, timeout, "V6 rst-lifetime");
kfree_skb(skb);
return success;
}
/**
* "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;
}
/*
* Something else arrives.
*/
static bool test_tcp_v4_init_state_handle_else(void)
{
struct session_entry *session;
struct expire_timer *expirer;
struct sk_buff *skb;
bool success = true;
/* Prepare */
session = session_create_str_tcp("1::2", 1212, "3::4", 3434, "5.6.7.8", 5678, "8.7.6.5", 8765,
V4_INIT);
if (!session)
return false;
if (is_error(create_tcp_packet(&skb, L3PROTO_IPV6, false, true, false)))
return false;
/* Evaluate */
success &= assert_equals_int(0, tcp_v4_init_state_handle(skb, session, &expirer), "else-result");
success &= assert_null(session->expirer, "null expirer");
kfree_skb(skb);
return success;
}