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/* $NetBSD: t_basic.c,v 1.5 2011/06/26 13:13:31 christos Exp $ */
/*-
* Copyright (c) 2010 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: t_basic.c,v 1.5 2011/06/26 13:13:31 christos Exp $");
#endif /* not lint */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip_carp.h>
#include <rump/rump.h>
#include <rump/rump_syscalls.h>
#include <atf-c.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include "../config/netconfig.c"
#include "../../h_macros.h"
static bool oknow = false;
static void
sighnd(int sig)
{
ATF_REQUIRE_EQ(sig, SIGCHLD);
if (oknow)
return;
atf_tc_fail("child died unexpectedly");
}
ATF_TC(handover);
ATF_TC_HEAD(handover, tc)
{
atf_tc_set_md_var(tc, "descr", "check that carp handover works if "
"the master dies");
}
#define THEBUS "buuuuuuus,etherbus"
static void
child(bool master)
{
char ifname[IFNAMSIZ];
struct carpreq cr;
struct ifreq ifr;
const char *carpif;
int s;
/* helps reading carp debug output */
if (master)
carpif = "carp0";
else
carpif = "carp1";
/*
* Should use sysctl, bug debug is dabug.
*/
{
//extern int rumpns_carp_opts[]; /* XXX */
//rumpns_carp_opts[CARPCTL_LOG] = 1;
}
rump_init();
memset(&ifr, 0, sizeof(ifr));
strlcpy(ifr.ifr_name, carpif, sizeof(ifr.ifr_name));
RL(s = rump_sys_socket(PF_INET, SOCK_DGRAM, 0));
RL(rump_sys_ioctl(s, SIOCIFCREATE, &ifr));
netcfg_rump_makeshmif(THEBUS, ifname);
if (master)
netcfg_rump_if(ifname, "10.1.1.1", "255.255.255.0");
else
netcfg_rump_if(ifname, "10.1.1.2", "255.255.255.0");
/* configure the carp interface */
ifr.ifr_data = &cr;
RL(rump_sys_ioctl(s, SIOCGVH, &ifr));
strlcpy(cr.carpr_carpdev, ifname, sizeof(cr.carpr_carpdev));
cr.carpr_vhid = 175;
if (master)
cr.carpr_advskew = 0;
else
cr.carpr_advskew = 200;
cr.carpr_advbase = 1;
strcpy((char *)cr.carpr_key, "s3cret");
RL(rump_sys_ioctl(s, SIOCSVH, &ifr));
netcfg_rump_if(carpif, "10.1.1.100", "255.255.255.0");
/* tassa pause()en enka muuta voi */
pause();
}
ATF_TC_BODY(handover, tc)
{
char ifname[IFNAMSIZ];
pid_t mpid, cpid;
int i, status;
signal(SIGCHLD, sighnd);
/* fork master */
switch (mpid = fork()) {
case -1:
atf_tc_fail_errno("fork failed");
/*NOTREACHED*/
case 0:
child(true);
/*NOTREACHED*/
default:
break;
}
usleep(500000);
/* fork backup */
switch (cpid = fork()) {
case -1:
kill(mpid, SIGKILL);
atf_tc_fail_errno("fork failed");
/*NOTREACHED*/
case 0:
child(false);
/*NOTREACHED*/
default:
break;
}
usleep(500000);
rump_init();
netcfg_rump_makeshmif(THEBUS, ifname);
netcfg_rump_if(ifname, "10.1.1.240", "255.255.255.0");
/* check that the primary addresses are up */
ATF_REQUIRE_EQ(netcfg_rump_pingtest("10.1.1.1", 1000), true);
ATF_REQUIRE_EQ(netcfg_rump_pingtest("10.1.1.2", 1000), true);
/* give carp a while to croak */
sleep(4);
/* check that the shared IP works */
ATF_REQUIRE_EQ(netcfg_rump_pingtest("10.1.1.100", 500), true);
/* KILLING SPREE */
oknow = true;
kill(mpid, SIGKILL);
wait(&status);
usleep(10000); /* just in case */
oknow = false;
/* check that primary is now dead */
ATF_REQUIRE_EQ(netcfg_rump_pingtest("10.1.1.1", 100), false);
/* do it in installments. carp will cluck meanwhile */
for (i = 0; i < 5; i++) {
if (netcfg_rump_pingtest("10.1.1.100", 1000) == true)
break;
}
if (i == 5)
atf_tc_fail("failed to failover");
/* to kill the child */
oknow = true;
kill(cpid, SIGKILL);
/* clean & done */
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, handover);
return atf_no_error();
}
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