/* Test functions */
/** create multiple segments and pass them to tcp_input in a wrong
- * order to see if ooseq-caching works correctly */
-START_TEST(test_tcp_recv_ooseq)
+ * order to see if ooseq-caching works correctly
+ * FIN is received in out-of-sequence segments only */
+START_TEST(test_tcp_recv_ooseq_FIN_OOSEQ)
{
struct test_tcp_counters counters;
struct tcp_pcb* pcb;
EXPECT(p1 != NULL);
EXPECT(p2 != NULL);
EXPECT(p3 != NULL);
- if ((pinseq != NULL) && (p1 != NULL) && (p2 != NULL) && (p3 != NULL)) {
+ EXPECT(p4 != NULL);
+ if ((pinseq != NULL) && (p1 != NULL) && (p2 != NULL) && (p3 != NULL) && (p4 != NULL)) {
/* pass the segment to tcp_input */
tcp_input(p1, &netif);
/* check if counters are as expected */
END_TEST
+/** create multiple segments and pass them to tcp_input in a wrong
+ * order to see if ooseq-caching works correctly
+ * FIN is received IN-SEQUENCE at the end */
+START_TEST(test_tcp_recv_ooseq_FIN_INSEQ)
+{
+ struct test_tcp_counters counters;
+ struct tcp_pcb* pcb;
+ struct pbuf *p1, *p2, *p3, *p4, *p5, *p6, *pinseq, *pinseqFIN;
+ char data[] = {
+ 1, 2, 3, 4,
+ 5, 6, 7, 8,
+ 9, 10, 11, 12,
+ 13, 14, 15, 16};
+ struct ip_addr remote_ip, local_ip;
+ u16_t data_len;
+ u16_t remote_port = 0x100, local_port = 0x101;
+ struct netif netif;
+ LWIP_UNUSED_ARG(_i);
+
+ /* initialize local vars */
+ memset(&netif, 0, sizeof(netif));
+ IP4_ADDR(&local_ip, 192, 168, 1, 1);
+ IP4_ADDR(&remote_ip, 192, 168, 1, 2);
+ data_len = sizeof(data);
+ /* initialize counter struct */
+ memset(&counters, 0, sizeof(counters));
+ counters.expected_data_len = data_len;
+ counters.expected_data = data;
+
+ /* create and initialize the pcb */
+ pcb = test_tcp_new_counters_pcb(&counters);
+ EXPECT_RET(pcb != NULL);
+ tcp_set_state(pcb, ESTABLISHED, &local_ip, &remote_ip, local_port, remote_port);
+
+ /* create segments */
+ /* p1: 7 bytes - 2 before FIN */
+ /* seqno: 1..2 */
+ p1 = tcp_create_rx_segment(pcb, &data[1], 2, 1, 0, TCP_ACK);
+ /* p2: 4 bytes before p1, including the first 4 bytes of p1 (partly duplicate) */
+ /* seqno: 4..11 */
+ p2 = tcp_create_rx_segment(pcb, &data[4], 8, 4, 0, TCP_ACK);
+ /* p3: same as p2 but 2 bytes longer and one byte more at the front */
+ /* seqno: 3..13 */
+ p3 = tcp_create_rx_segment(pcb, &data[3], 11, 3, 0, TCP_ACK);
+ /* p4: 13 bytes - 2 before FIN - should be ignored as contained in p1 and p3 */
+ /* seqno: 2..13 */
+ p4 = tcp_create_rx_segment(pcb, &data[2], 12, 2, 0, TCP_ACK);
+ /* pinseq is the first segment that is held back to create ooseq! */
+ /* seqno: 0..3 */
+ pinseq = tcp_create_rx_segment(pcb, &data[0], 4, 0, 0, TCP_ACK);
+ /* p5: last byte before FIN */
+ /* seqno: 15 */
+ p5 = tcp_create_rx_segment(pcb, &data[15], 1, 15, 0, TCP_ACK);
+ /* p6: same as p5, should be ignored */
+ p6 = tcp_create_rx_segment(pcb, &data[15], 1, 15, 0, TCP_ACK);
+ /* pinseqFIN: last 2 bytes plus FIN */
+ /* only segment containing seqno 14 and FIN */
+ pinseqFIN = tcp_create_rx_segment(pcb, &data[14], 2, 14, 0, TCP_ACK|TCP_FIN);
+ EXPECT(pinseq != NULL);
+ EXPECT(p1 != NULL);
+ EXPECT(p2 != NULL);
+ EXPECT(p3 != NULL);
+ EXPECT(p4 != NULL);
+ EXPECT(p5 != NULL);
+ EXPECT(p6 != NULL);
+ EXPECT(pinseqFIN != NULL);
+ if ((pinseq != NULL) && (p1 != NULL) && (p2 != NULL) && (p3 != NULL) && (p4 != NULL)
+ && (p5 != NULL) && (p6 != NULL) && (pinseqFIN != NULL)) {
+ /* pass the segment to tcp_input */
+ tcp_input(p1, &netif);
+ /* check if counters are as expected */
+ EXPECT(counters.close_calls == 0);
+ EXPECT(counters.recv_calls == 0);
+ EXPECT(counters.recved_bytes == 0);
+ EXPECT(counters.err_calls == 0);
+ /* @todo check ooseq queue? */
+
+ /* pass the segment to tcp_input */
+ tcp_input(p2, &netif);
+ /* check if counters are as expected */
+ EXPECT(counters.close_calls == 0);
+ EXPECT(counters.recv_calls == 0);
+ EXPECT(counters.recved_bytes == 0);
+ EXPECT(counters.err_calls == 0);
+ /* @todo check ooseq queue? */
+
+ /* pass the segment to tcp_input */
+ tcp_input(p3, &netif);
+ /* check if counters are as expected */
+ EXPECT(counters.close_calls == 0);
+ EXPECT(counters.recv_calls == 0);
+ EXPECT(counters.recved_bytes == 0);
+ EXPECT(counters.err_calls == 0);
+ /* @todo check ooseq queue? */
+
+ /* pass the segment to tcp_input */
+ tcp_input(p4, &netif);
+ /* check if counters are as expected */
+ EXPECT(counters.close_calls == 0);
+ EXPECT(counters.recv_calls == 0);
+ EXPECT(counters.recved_bytes == 0);
+ EXPECT(counters.err_calls == 0);
+ /* @todo check ooseq queue? */
+
+ /* pass the segment to tcp_input */
+ tcp_input(pinseq, &netif);
+ /* check if counters are as expected */
+ EXPECT(counters.close_calls == 0);
+ EXPECT(counters.recv_calls == 1);
+ EXPECT(counters.recved_bytes == 14);
+ EXPECT(counters.err_calls == 0);
+ EXPECT(pcb->ooseq == NULL);
+
+ /* pass the segment to tcp_input */
+ tcp_input(p5, &netif);
+ /* check if counters are as expected */
+ EXPECT(counters.close_calls == 0);
+ EXPECT(counters.recv_calls == 1);
+ EXPECT(counters.recved_bytes == 14);
+ EXPECT(counters.err_calls == 0);
+ /* @todo check ooseq queue? */
+ EXPECT(pcb->ooseq != NULL);
+ if(pcb->ooseq != NULL) {
+ EXPECT(pcb->ooseq->next == NULL);
+ }
+
+ /* pass the segment to tcp_input */
+ tcp_input(p6, &netif);
+ /* check if counters are as expected */
+ EXPECT(counters.close_calls == 0);
+ EXPECT(counters.recv_calls == 1);
+ EXPECT(counters.recved_bytes == 14);
+ EXPECT(counters.err_calls == 0);
+ /* @todo check ooseq queue? */
+ EXPECT(pcb->ooseq != NULL);
+ if(pcb->ooseq != NULL) {
+ EXPECT(pcb->ooseq->next == NULL);
+ }
+
+ /* pass the segment to tcp_input */
+ tcp_input(pinseqFIN, &netif);
+ /* check if counters are as expected */
+ EXPECT(counters.close_calls == 1);
+ EXPECT(counters.recv_calls == 2);
+ EXPECT(counters.recved_bytes == data_len);
+ EXPECT(counters.err_calls == 0);
+ EXPECT(pcb->ooseq == NULL);
+ }
+
+ /* make sure the pcb is freed */
+ EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 1);
+ tcp_abort(pcb);
+ EXPECT(lwip_stats.memp[MEMP_TCP_PCB].used == 0);
+}
+END_TEST
+
/** Create the suite including all tests for this module */
Suite *
tcp_oos_suite(void)
{
TFun tests[] = {
- test_tcp_recv_ooseq,
+ test_tcp_recv_ooseq_FIN_OOSEQ,
+ test_tcp_recv_ooseq_FIN_INSEQ,
};
return create_suite("TCP_OOS", tests, sizeof(tests)/sizeof(TFun), tcp_oos_setup, tcp_oos_teardown);
}
projects / pes-rpp / rpp-lwip.git / blobdiff