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capture_example.c
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capture_example.c
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#include <stdint.h>
#include <lorcon2/lorcon.h>
#include <getopt.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
void apitest_packet_hdlr(lorcon_t *context, lorcon_packet_t *packet,
u_char *user) {
u_char *dot3;
int len;
printf("apitest - %s drv %s got packet len %d\n",
lorcon_get_capiface(context), lorcon_get_driver_name(context),
packet->length);
if (packet->length_header != 0) {
printf(" decoded length %d\n", packet->length_header);
}
if (packet->length_data != 0) {
printf(" decoded data length %d\n", packet->length_data);
}
len = lorcon_packet_to_dot3(packet, &dot3);
printf(" dot3 length %d\n", len);
free(dot3);
lorcon_packet_free(packet);
}
int main(int argc, char *argv[]) {
lorcon_driver_t *drvlist, *dri;
char *interface = NULL, *driver = NULL;
int c;
lorcon_t *ctx;
while ((c = getopt(argc, argv, "i:h:d:")) != EOF) {
switch (c) {
case 'h':
dri = drvlist = lorcon_list_drivers();
printf("Supported LORCON drivers:\n");
while (dri) {
printf("%-10.10s %s\n", dri->name, dri->details);
dri = dri->next;
}
lorcon_free_driver_list(drvlist);
break;
case 'i':
interface = strdup(optarg);
break;
case 'd':
driver = strdup(optarg);
break;
}
}
if (interface == NULL) {
printf("no interface\n");
exit(1);
}
if (driver != NULL) {
dri = lorcon_find_driver(driver);
if (dri == NULL) {
printf("couldn't find driver %s for %s\n", driver, interface);
exit(1);
}
} else {
dri = lorcon_auto_driver(interface);
if (dri == NULL) {
printf("Couldn't detect driver for %s\n", interface);
exit(1);
}
printf("Detected driver %s for %s\n", dri->name, interface);
}
if ((ctx = lorcon_create(interface, dri)) == NULL) {
printf("Failed to create context for %s %s\n", interface, dri->name);
exit(1);
}
if (lorcon_open_injmon(ctx) < 0) {
printf("Failed to open %s %s in injmon: %s\n", lorcon_get_capiface(ctx),
dri->name, lorcon_get_error(ctx));
exit(1);
}
lorcon_free_driver_list(dri);
lorcon_loop(ctx, 0, apitest_packet_hdlr, NULL);
lorcon_free(ctx);
}