dyn_ip_test.c

mobile ip 在linux下的一种实现

/* $Id: dyn_ip_test.c,v 1.28 2001/09/26 18:25:24 jm Exp $
 * Tunnel and route interface tests
 *
 * Dynamic hierarchial IP tunnel
 * Copyright (C) 1998-2001, Dynamics group
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation. See README and COPYING for
 * more details.
 */

#include <stdlib.h>
#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/types.h>

#include "util.h"
#include "dyn_ip.h"

#include "fixed_fd_zero.h"

#define TEST_INTERFACE "TEST"
#define TEST_ADDRESS "192.168.250.230"
#define LOCAL_ADDRESS "192.168.250.231"
#define TEST_NET "192.168.250.0"
#define TEST_NET_PLEN 24
#define TEST_NET_PLENS "24"
#define IP_PATH "/sbin/ip"
#define IFCONFIG_PATH "/sbin/ifconfig"

extern int opt_debug;

static void dyn_ip_tests(void)
{
	struct in_addr a, b, c;
	struct in_addr any;
	int ok = 1, i;

	any.s_addr = 0;

	printf("Tunnel and route interface routine tests\n"
	       "(this test must be run with root privileges)\n\n");


	inet_aton(TEST_ADDRESS, &a);
	inet_aton(LOCAL_ADDRESS, &b);
	inet_aton(TEST_NET, &c);

	i = 0;
	printf("Test case M00: Check IPIP and GRE encapsulation support\n");
	if (dyn_ip_check_ipip() < 0) {
		i = 1;
		printf("No kernel support for IPIP\n");
	}
	if (dyn_ip_check_gre() < 0) {
		i = 1;
		printf("No kernel support for GRE\n");
	}
	if (i == 1) {
		ok = 0;
		printf("M00: failed!\n\n");
	} else
		printf("M00: OK\n\n");

	printf("Test case M01: Add a tunnel\n");
	printf("The tunnel should not exist already - ifconfig:\n");
	system(IFCONFIG_PATH " " TEST_INTERFACE);
	printf("dyn_ip_tunnel_add(" TEST_INTERFACE ", " TEST_ADDRESS ")\n");
	if (dyn_ip_tunnel_add(TEST_INTERFACE, a, any) != 0) {
		fprintf(stderr, "M01: failed!\n\n");
		ok = 0;
	} else {
		printf("Tunnel should have been added - ip tu:\n");
		system(IP_PATH " tunnel show " TEST_INTERFACE);
		printf("but it should not be up: ifconfig | grep "
		       TEST_INTERFACE "\n");
		system(IFCONFIG_PATH " | grep " TEST_INTERFACE);
		printf("M01 OK\n\n");
	}


	printf("Test case M02: Set test interface up\n");
	printf("dyn_ip_link_set_dev_up(" TEST_INTERFACE ")\n");
	if (dyn_ip_link_set_dev_up(TEST_INTERFACE) != 0) {
		fprintf(stderr, "M02: failed!\n\n");
		ok = 0;
	} else {
		printf("Tunnel should now be up - ifconfig:\n");
		system(IFCONFIG_PATH " " TEST_INTERFACE);
		printf("M02 OK\n\n");
	}


	printf("Test case M03: Add local address to tunnel\n");
	printf("Tunnel should not have the local address (yet) - ifconfig:\n");
	system(IFCONFIG_PATH " " TEST_INTERFACE " | grep addr");
	printf("dyn_ip_addr_add(" TEST_INTERFACE ", " LOCAL_ADDRESS ")\n");
	if (dyn_ip_addr_add(TEST_INTERFACE, b) != 0) {
		fprintf(stderr, "M03: failed!\n\n");
		ok = 0;
	} else {
		printf("Tunnel should now have a local address - ifconfig:\n");
		system(IFCONFIG_PATH " " TEST_INTERFACE " | grep addr");
		printf("M03 OK\n\n");
	}


	printf("Test case M04: Add default route to routing table\n");
	printf("No routing info should be found yet - ip:\n");
	system(IP_PATH " route show table 99");
	printf("dyn_ip_route_add_table(" TEST_INTERFACE ", 99, NULL)\n");
	if (dyn_ip_route_add_table(TEST_INTERFACE, 99, NULL) != 0) {
		fprintf(stderr, "M04: failed!\n\n");
		ok = 0;
	} else {
		printf("Default route should have been added - ip:\n");
		system(IP_PATH " route show table 99");
		printf("M04 OK\n\n");
	}


	printf("Test case M05: Add rule for source routing\n");
	printf("No rule in table 99 should be found yet - ip:\n");
	system(IP_PATH " rule list");
	printf("dyn_ip_rule_add_table(" TEST_ADDRESS ", 99," TEST_INTERFACE
	       ")\n");
	if (dyn_ip_rule_add_table(&a, NULL, 99, TEST_INTERFACE) != 0) {
		fprintf(stderr, "M05: failed!\n\n");
		ok = 0;
	} else {
		printf("Rule should have been added to table 99 - ip:\n");
		system(IP_PATH " rule list");
		printf("M05 OK\n\n");
	}


	printf("Test case M06: Remove the previously added rule\n");
	printf("dyn_ip_rule_del_table(" TEST_ADDRESS ", 99, " TEST_INTERFACE
	       ")\n");
	if (dyn_ip_rule_del_table(&a, NULL, 99, TEST_INTERFACE) != 0) {
		fprintf(stderr, "M06: failed!\n\n");
		ok = 0;
	} else {
		printf("Rule should have been removed from table 99 - ip:\n");
		system(IP_PATH " rule list");
		printf("M06 OK\n\n");
	}


	printf("Test case M07: Add destination based route\n");
	printf("dyn_ip_route_add(" TEST_ADDRESS ", " TEST_INTERFACE ")\n");
	if (dyn_ip_route_add(a, TEST_INTERFACE) != 0) {
		fprintf(stderr, "M07: failed!\n\n");
		ok = 0;
	} else {
		printf("Route should have been added - ip:\n");
		system(IP_PATH " route");
		printf("M07 OK\n\n");
	}


	printf("Test case M07-B: Replace destination based route\n");
	printf("dyn_ip_route_replace(" TEST_ADDRESS ",eth0)\n");
	if (dyn_ip_route_replace(a, "eth0") != 0) {
		fprintf(stderr, "M07-B: failed!\n\n");
		ok = 0;
	} else {
		printf("Route should have been replaced - ip:\n");
		system(IP_PATH " route");
		printf("M07-B OK\n\n");
	}

	printf("Test case M08: Remove destination based route\n");
	printf("dyn_ip_route_del(" TEST_ADDRESS ",eth0)\n");
	if (dyn_ip_route_del(a, "eth0") != 0) { 
		fprintf(stderr, "M08: failed!\n\n");
		ok = 0;
	} else {
		printf("Route should have been deleted - ip:\n");
		system(IP_PATH " route");
		printf("M08 OK\n\n");
	}


	printf("Test case M08b: Add net route\n");
	printf("dyn_ip_route_add_net(" TEST_INTERFACE ", " TEST_NET ", %i)\n",
	       TEST_NET_PLEN);
	if (dyn_ip_route_add_net(TEST_INTERFACE, &c, TEST_NET_PLEN) != 0) {
		fprintf(stderr, "M08b: failed!\n\n");
		ok = 0;
	} else {
		printf("The route entry should have been added - ip:\n");
		system(IP_PATH " route list " TEST_NET "/" TEST_NET_PLENS);
		printf("M08b OK\n\n");
	}


	printf("Test case M08c: Delete net route\n");
	printf("dyn_ip_route_del_net(" TEST_INTERFACE ", " TEST_NET ", %i)\n",
	       TEST_NET_PLEN);
	if (dyn_ip_route_del_net(TEST_INTERFACE, &c, TEST_NET_PLEN) != 0) {
		fprintf(stderr, "M08c: failed!\n\n");
		ok = 0;
	} else {
		printf("The route entry should have been removed - ip:\n");
		system(IP_PATH " route list " TEST_NET "/" TEST_NET_PLENS);
		printf("M08c OK\n\n");
	}


	printf("Test case M09: Set the device down\n");
	printf("dyn_ip_tunnel_del(" TEST_INTERFACE ")\n");
	if (dyn_ip_link_set_dev_down(TEST_INTERFACE) != 0) {
		fprintf(stderr, "M09: failed!\n\n");
		ok = 0;
	} else {
		printf("Device should be down - ifconfig:\n");
		system(IFCONFIG_PATH " " TEST_INTERFACE);
		printf("M09 OK\n\n");
	}


	printf("Test case M10: Remove the tunnel\n");
	printf("dyn_ip_tunnel_del(" TEST_INTERFACE ")\n");
	if (dyn_ip_tunnel_del(TEST_INTERFACE) != 0) {
		fprintf(stderr, "M10: failed!\n\n");
		ok = 0;
	} else {
		printf("Tunnel should have been removed - ifconfig:\n");
		system(IFCONFIG_PATH " " TEST_INTERFACE);
		printf("M10 OK\n\n");
	}


	printf("Test case M11: Add a GRE tunnel\n");
	printf("The tunnel should not exist already - ifconfig:\n");
	system(IFCONFIG_PATH " " TEST_INTERFACE);
	printf("dyn_ip_tunnel_add_gre(" TEST_INTERFACE ", " TEST_ADDRESS
	       ",1000)\n");
	if (dyn_ip_tunnel_add_gre(TEST_INTERFACE, a, any, 1000) != 0) {
		fprintf(stderr, "M11: failed!\n\n");
		ok = 0;
	} else {
		printf("Tunnel should have been added - ip tu:\n");
		system(IP_PATH " tunnel show " TEST_INTERFACE);
		printf("but it should not be up: ifconfig | grep "
		       TEST_INTERFACE "\n");
		system(IFCONFIG_PATH " | grep " TEST_INTERFACE);
		printf("M11 OK\n\n");
	}

	printf("Test case M11: Remove the GRE tunnel\n");
	printf("dyn_ip_tunnel_del(" TEST_INTERFACE ")\n");
	if (dyn_ip_tunnel_del(TEST_INTERFACE) != 0) {
		fprintf(stderr, "M11: failed!\n\n");
		ok = 0;
	} else {
		printf("Tunnel should have been removed - ifconfig:\n");
		system(IFCONFIG_PATH " " TEST_INTERFACE);
		printf("M11 OK\n\n");
	}


	if (ok == 0) {
		fprintf(stderr, "There were some errors found during "
			"testing!\n");
		if (geteuid() != 0) {
			fprintf(stderr, "This should, however, come as no "
				"suprise because you aren't root.\n");
		}
		exit(1);
	}

	printf("Tunnel and route interface routine tests completed "
	       "successfully\n");
}

static void dyn_ip_get(char *dst)
{
	struct in_addr addr;
	char buf[10];
	int ret;

	inet_aton(dst, &addr);
	ret = dyn_ip_route_get(addr, buf, sizeof(buf));
	if (ret != 0) {
		fprintf(stderr, "dyn_ip_route_get failed => %i\n", ret);
		exit(-1);
	}
	printf("%s => %s\n", dst, buf);
}

static void dyn_ip_local(char *dst)
{
	struct in_addr addr, local;
	int ret;

	inet_aton(dst, &addr);