bool test_tcp_established_state_handle( void )
{
struct sk_buff *skb;
struct session_entry session;
bool success = true;
/* A V4 FIN packet arrives. */
if (!init_skb_and_session(&skb, &session, PACKET_TYPE_V4_FIN, ESTABLISHED, 10))
return false;
success &= assert_true(tcp_established_state_handle( skb, &session ), "V4 fin-result");
success &= assert_equals_u8(V4_FIN_RCV, session.state, "V4 fin-state");
success &= assert_equals_int(10, session.dying_time, "V4 fin-lifetime");
kfree_skb(skb);
/* A V6 FIN packet arrives. */
if (!init_skb_and_session(&skb, &session, PACKET_TYPE_V6_FIN, ESTABLISHED, 10))
return false;
success &= assert_true(tcp_established_state_handle( skb, &session ), "V6 fin-result");
success &= assert_equals_u8(V6_FIN_RCV, session.state, "V6 fin-state");
success &= assert_equals_int(10, session.dying_time, "V6 fin-lifetime");
kfree_skb(skb);
/* A V4 RST packet arrives. */
if (!init_skb_and_session(&skb, &session, PACKET_TYPE_V4_RST, ESTABLISHED, 10))
return false;
success &= assert_true(tcp_established_state_handle( skb, &session ), "V4 rst-result");
success &= assert_equals_u8(TRANS, session.state, "V4 rst-state");
success &= assert_not_equals_int(10, session.dying_time, "V4 rst-lifetime");
kfree_skb(skb);
/* A V6 RST packet arrives. */
if (!init_skb_and_session(&skb, &session, PACKET_TYPE_V6_RST, ESTABLISHED, 10))
return false;
success &= assert_true(tcp_established_state_handle( skb, &session ), "V6 rst-result");
success &= assert_equals_u8(TRANS, session.state, "V6 rst-state");
success &= assert_not_equals_int(10, session.dying_time, "V6 rst-lifetime");
kfree_skb(skb);
/* Something else arrives. */
if (!init_skb_and_session(&skb, &session, PACKET_TYPE_V4_SYN, ESTABLISHED, 10))
return false;
success &= assert_true(tcp_established_state_handle(skb, &session), "else-result");
success &= assert_equals_u8(ESTABLISHED, session.state, "else-state");
success &= assert_not_equals_int(10, session.dying_time, "else-lifetime");
kfree_skb(skb);
return success;
}
/*
* Something else arrives.
*/
static bool test_tcp_established_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,
ESTABLISHED);
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_established_state_handle(&pkt, session, &expirer), "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_established_state_handle_v6fin(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_IPV6, false, false, true)))
return false;
if (is_error(pkt_init_ipv6(&pkt, skb)))
return false;
/* Evaluate */
success &= assert_equals_int(0, tcp_established_state_handle(&pkt, session, &expirer), "result");
success &= assert_equals_u8(V6_FIN_RCV, session->state, "V6 fin-state");
success &= assert_null(session->expirer, "null expirer");
kfree_skb(skb);
return success;
}