Timer-Library/Assignment/rt_entry_expiration.c

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <timerlib.h>
#include <assert.h>
#include <string.h>
#include "rt.h"

static rt_table_t rt;

void rt_entry_delete_on_timer_expiry(Timer_t* timer, void* user_data) {

	assert(timer != NULL);
	assert(user_data != NULL);

	rt_entry_t* rt_entry = (rt_entry_t*)user_data;

	char dest_ip[16];
	strncpy(dest_ip,rt_entry->rt_entry_keys.dest, sizeof(rt_entry->rt_entry_keys.dest));
	char mask = rt_entry->rt_entry_keys.mask;
	delete_timer(rt_entry->timer);

	assert(rt_delete_rt_entry(&rt, dest_ip, mask));


}

int
main(int argc, char** argv) {

	rt_init_rt_table(&rt);

	rt_add_new_rt_entry(&rt, "122.1.1.1", 32, "10.1.1.1", "eth0",rt_entry_delete_on_timer_expiry);
	rt_add_new_rt_entry(&rt, "122.1.1.2", 32, "10.1.1.2", "eth1",rt_entry_delete_on_timer_expiry);
	rt_add_new_rt_entry(&rt, "122.1.1.3", 32, "10.1.1.3", "eth2",rt_entry_delete_on_timer_expiry);
	rt_add_new_rt_entry(&rt, "122.1.1.4", 32, "10.1.1.4", "eth3",rt_entry_delete_on_timer_expiry);
	rt_add_new_rt_entry(&rt, "122.1.1.5", 32, "10.1.1.5", "eth4",rt_entry_delete_on_timer_expiry);

	while (1) {
		printf("1. Add rt table entry\n");
		printf("2. Update rt table entry\n");
		printf("3. Delete rt table entry\n");
		printf("4. Dump rt table\n");

		int choice;
		printf("Enter Choice :");
		scanf("%d", &choice);
		fflush(stdin);
		switch (choice) {
		case 1:
		{
			char dest[16];
			uint8_t mask;
			char oif[32];
			char gw[16];
			printf("Enter Destination :");
			scanf("%s", dest);
			printf("Mask : ");
			scanf("%hhd", &mask);
			printf("Enter oif name :");
			scanf("%s", oif);
			printf("Enter Gateway IP :");
			scanf("%s", gw);
			if (!rt_add_new_rt_entry(&rt, dest, mask,
				gw, oif, rt_entry_delete_on_timer_expiry)) {
				printf("Error : Could not add an entry\n");
			}
		}
		break;
		case 2:
			break;
		case 3:
			break;
		case 4:
			rt_dump_rt_table(&rt);
		default:
			;
		}
	}
	return 0;
}