libicsneo/examples/c2/ethernet_transmit/src/main.c

205 lines
6.9 KiB
C

#include <icsneo/icsneoc2.h>
#include <icsneo/icsneoc2messages.h>
#include <stdio.h>
#include <inttypes.h>
#ifdef _WIN32
#include <windows.h>
#else
#include <unistd.h>
#endif
int print_error_code(const char* message, icsneoc2_error_t error) {
char error_str[64];
size_t error_str_len = sizeof(error_str);
icsneoc2_error_t res = icsneoc2_error_code_get(error, error_str, &error_str_len);
if(res != icsneoc2_error_success) {
printf("%s: Failed to get string for error code %d with error code %d\n", message, error, res);
return res;
}
printf("%s: \"%s\" (%u)\n", message, error_str, error);
return (int)error;
}
void print_events(void) {
icsneoc2_event_t* events[256] = {0};
size_t events_count = 256;
for(size_t i = 0; i < events_count; ++i) {
icsneoc2_error_t res = icsneoc2_event_get(&events[i], NULL);
if(res != icsneoc2_error_success) {
(void)print_error_code("\tFailed to get events", res);
return;
}
if(events[i] == NULL) {
events_count = i;
break;
}
}
for(size_t i = 0; i < events_count; i++) {
char description[255] = {0};
size_t description_length = 255;
icsneoc2_error_t res = icsneoc2_event_description_get(events[i], description, &description_length);
if(res != icsneoc2_error_success) {
print_error_code("\tFailed to get event description", res);
continue;
}
printf("\tEvent %zu: %s\n", i, description);
}
for(size_t i = 0; i < events_count; i++) {
icsneoc2_event_free(events[i]);
}
if(events_count > 0) {
printf("\tReceived %zu events\n", events_count);
}
}
int main(void) {
/* Open the first available device */
printf("Opening first available device...\n");
icsneoc2_device_t* device = NULL;
icsneoc2_error_t res = icsneoc2_device_open_first(0, icsneoc2_open_options_default, &device);
if(res != icsneoc2_error_success) {
return print_error_code("Failed to open first device", res);
}
/* Get a description of the opened device */
char description[255] = {0};
size_t description_length = 255;
res = icsneoc2_device_description_get(device, description, &description_length);
if(res != icsneoc2_error_success) {
return print_error_code("Failed to get device description", res);
}
printf("Opened device: %s\n", description);
icsneoc2_netid_t tx_networks[255] = {0};
size_t tx_net_count = sizeof(tx_networks) / sizeof(tx_networks[0]);
res = icsneoc2_device_supported_tx_networks_get(device, tx_networks, &tx_net_count);
if(res != icsneoc2_error_success) {
print_events();
return print_error_code("Failed to get TX networks", res);
}
/* Filter for Ethernet/AutomotiveEthernet networks */
icsneoc2_netid_t eth_networks[64] = {0};
char eth_names[64][128] = {{0}};
size_t eth_count = 0;
for(size_t i = 0; i < tx_net_count && eth_count < 64; i++) {
/* Create a temporary message to check network type */
icsneoc2_message_t* tmp = NULL;
res = icsneoc2_message_eth_create(&tmp);
if(res != icsneoc2_error_success) continue;
res = icsneoc2_message_netid_set(tmp, tx_networks[i]);
if(res != icsneoc2_error_success) { icsneoc2_message_free(tmp); continue; }
icsneoc2_network_type_t ntype = 0;
res = icsneoc2_message_network_type_get(tmp, &ntype);
icsneoc2_message_free(tmp);
if(res != icsneoc2_error_success) continue;
if(ntype == icsneoc2_network_type_ethernet || ntype == icsneoc2_network_type_automotive_ethernet) {
eth_networks[eth_count] = tx_networks[i];
size_t name_len = 128;
icsneoc2_netid_name_get(tx_networks[i], eth_names[eth_count], &name_len);
eth_count++;
}
}
if(eth_count == 0) {
printf("No Ethernet TX networks available on this device.\n");
icsneoc2_device_close(device);
return 0;
}
/* Let the user pick */
printf("Available Ethernet TX networks:\n");
for(size_t i = 0; i < eth_count; i++) {
printf(" %zu) %s\n", i + 1, eth_names[i]);
}
printf("Select network [1-%zu]: ", eth_count);
int selection = 0;
if(scanf("%d", &selection) != 1 || selection < 1 || (size_t)selection > eth_count) {
printf("Invalid selection, using first available.\n");
selection = 1;
}
icsneoc2_netid_t netid = eth_networks[selection - 1];
printf("Selected: %s\n", eth_names[selection - 1]);
/* Transmit Ethernet frames */
const size_t msg_count = 10;
printf("Transmitting %zu Ethernet frames on %s...\n", msg_count, eth_names[selection - 1]);
for(size_t i = 0; i < msg_count; i++) {
/* Create an Ethernet message */
icsneoc2_message_t* message = NULL;
res = icsneoc2_message_eth_create(&message);
if(res != icsneoc2_error_success) {
print_events();
return print_error_code("Failed to create Ethernet message", res);
}
/* Set the network ID */
res = icsneoc2_message_netid_set(message, netid );
if(res != icsneoc2_error_success) {
icsneoc2_message_free(message);
print_events();
return print_error_code("Failed to set netid", res);
}
/* Build Ethernet frame data:
* Bytes 0-5: Destination MAC (00:FC:70:00:01:02)
* Bytes 6-11: Source MAC (00:FC:70:00:01:01)
* Bytes 12-13: EtherType (0x0800 = IPv4)
* Bytes 14+: Payload
*/
uint8_t frame_data[] = {
0x00, 0xFC, 0x70, 0x00, 0x01, 0x02, /* Destination MAC */
0x00, 0xFC, 0x70, 0x00, 0x01, 0x01, /* Source MAC */
0x08, 0x00, /* EtherType (IPv4) */
0x45, 0x00, 0x00, 0x20, /* IPv4: ver/IHL, DSCP, total length (32) */
0x00, 0x00, 0x00, 0x00, /* Identification, flags/fragment offset */
0x40, 0x11, 0x00, 0x00, /* TTL (64), protocol (UDP), checksum (0) */
0xC0, 0xA8, 0x01, 0x01, /* Source IP (192.168.1.1) */
0xC0, 0xA8, 0x01, 0x02, /* Destination IP (192.168.1.2) */
0xC3, 0x50, 0xC3, 0x51, /* UDP: src port (50000), dst port (50001) */
0x00, 0x0C, 0x00, 0x00, /* UDP: length (12), checksum (0) */
0x00, 0x00, 0x00, 0x00 /* UDP payload (4 bytes, frame counter) */
};
/* Put the frame counter in the UDP payload */
frame_data[42] = (uint8_t)((i >> 24) & 0xFF);
frame_data[43] = (uint8_t)((i >> 16) & 0xFF);
frame_data[44] = (uint8_t)((i >> 8) & 0xFF);
frame_data[45] = (uint8_t)(i & 0xFF);
res = icsneoc2_message_data_set(message, frame_data, sizeof(frame_data));
if(res != icsneoc2_error_success) {
icsneoc2_message_free(message);
print_events();
return print_error_code("Failed to set frame data", res);
}
/* Transmit the message */
res = icsneoc2_device_message_transmit(device, message);
if(res != icsneoc2_error_success) {
icsneoc2_message_free(message);
print_events();
return print_error_code("Failed to transmit Ethernet frame", res);
}
icsneoc2_message_free(message);
printf("\tTransmitted frame %zu\n", i + 1);
}
printf("Successfully transmitted %zu Ethernet frames\n", msg_count);
/* Print any events */
print_events();
/* Close the device */
printf("Closing device...\n");
res = icsneoc2_device_close(device);
if(res != icsneoc2_error_success) {
return print_error_code("Failed to close device", res);
}
return 0;
}