/**
* SNTP processing of received timestamp
*/
static void
sntp_process(u32_t *receive_timestamp)
{
/* convert SNTP time (1900-based) to unix GMT time (1970-based)
* if MSB is 0, SNTP time is 2036-based!
*/
u32_t rx_secs = lwip_ntohl(receive_timestamp[0]);
int is_1900_based = ((rx_secs & 0x80000000) != 0);
u32_t t = is_1900_based ? (rx_secs - DIFF_SEC_1900_1970) : (rx_secs + DIFF_SEC_1970_2036);
time_t tim = t;
#if SNTP_CALC_TIME_US
u32_t us = lwip_ntohl(receive_timestamp[1]) / 4295;
SNTP_SET_SYSTEM_TIME_US(t, us);
/* display local time from GMT time */
LWIP_DEBUGF(SNTP_DEBUG_TRACE, ("sntp_process: %s, %"U32_F" us", ctime(&tim), us));
#else /* SNTP_CALC_TIME_US */
/* change system time and/or the update the RTC clock */
SNTP_SET_SYSTEM_TIME(t);
/* display local time from GMT time */
LWIP_DEBUGF(SNTP_DEBUG_TRACE, ("sntp_process: %s", ctime(&tim)));
#endif /* SNTP_CALC_TIME_US */
LWIP_UNUSED_ARG(tim);
}
END_TEST
/** Call tcp_new() and tcp_abort() and test memp stats */
START_TEST(test_tcp_listen_passive_open)
{
struct tcp_pcb *pcb, *pcbl;
struct tcp_pcb_listen *lpcb;
struct netif netif;
struct test_tcp_txcounters txcounters;
struct test_tcp_counters counters;
struct pbuf *p;
ip_addr_t src_addr;
err_t err;
LWIP_UNUSED_ARG(_i);
fail_unless(MEMP_STATS_GET(used, MEMP_TCP_PCB) == 0);
test_tcp_init_netif(&netif, &txcounters, &test_local_ip, &test_netmask);
/* initialize counter struct */
memset(&counters, 0, sizeof(counters));
pcb = tcp_new();
EXPECT_RET(pcb != NULL);
err = tcp_bind(pcb, &netif.ip_addr, 1234);
EXPECT(err == ERR_OK);
pcbl = tcp_listen(pcb);
EXPECT_RET(pcbl != NULL);
EXPECT_RET(pcbl != pcb);
lpcb = (struct tcp_pcb_listen *)pcbl;
ip_addr_set_ip4_u32_val(src_addr, lwip_htonl(lwip_ntohl(ip_addr_get_ip4_u32(&lpcb->local_ip)) + 1));
/* check correct syn packet */
p = tcp_create_segment(&src_addr, &lpcb->local_ip, 12345,
lpcb->local_port, NULL, 0, 12345, 54321, TCP_SYN);
EXPECT(p != NULL);
if (p != NULL) {
/* pass the segment to tcp_input */
test_tcp_input(p, &netif);
/* check if counters are as expected */
EXPECT(txcounters.num_tx_calls == 1);
}
/* check syn packet with short length */
p = tcp_create_segment(&src_addr, &lpcb->local_ip, 12345,
lpcb->local_port, NULL, 0, 12345, 54321, TCP_SYN);
EXPECT(p != NULL);
EXPECT(p->next == NULL);
if ((p != NULL) && (p->next == NULL)) {
p->len -= 2;
p->tot_len -= 2;
/* pass the segment to tcp_input */
test_tcp_input(p, &netif);
/* check if counters are as expected */
EXPECT(txcounters.num_tx_calls == 1);
}
tcp_close(pcbl);
}
/**
* RTP send packets
*/
static void
rtp_send_packets( int sock, struct sockaddr_in* to)
{
struct rtp_hdr* rtphdr;
u8_t* rtp_payload;
int rtp_payload_size;
size_t rtp_data_index;
/* prepare RTP packet */
rtphdr = (struct rtp_hdr*)rtp_send_packet;
rtphdr->version = RTP_VERSION;
rtphdr->payloadtype = 0;
rtphdr->ssrc = PP_HTONL(RTP_SSRC);
rtphdr->timestamp = lwip_htonl(lwip_ntohl(rtphdr->timestamp) + RTP_TIMESTAMP_INCREMENT);
/* send RTP stream packets */
rtp_data_index = 0;
do {
rtp_payload = rtp_send_packet+sizeof(struct rtp_hdr);
rtp_payload_size = LWIP_MIN(RTP_PAYLOAD_SIZE, (sizeof(rtp_data) - rtp_data_index));
MEMCPY(rtp_payload, rtp_data + rtp_data_index, rtp_payload_size);
/* set MARKER bit in RTP header on the last packet of an image */
rtphdr->payloadtype = RTP_PAYLOADTYPE | (((rtp_data_index + rtp_payload_size)
>= sizeof(rtp_data)) ? RTP_MARKER_MASK : 0);
/* send RTP stream packet */
if (sendto(sock, rtp_send_packet, sizeof(struct rtp_hdr) + rtp_payload_size,
0, (struct sockaddr *)to, sizeof(struct sockaddr)) >= 0) {
rtphdr->seqNum = lwip_htons(lwip_ntohs(rtphdr->seqNum) + 1);
rtp_data_index += rtp_payload_size;
} else {
LWIP_DEBUGF(RTP_DEBUG, ("rtp_sender: not sendto==%i\n", errno));
}
}while (rtp_data_index < sizeof(rtp_data));
}
