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Repeat the fragmentation on lo0 test, but with checksum on IFF_LOOPBACK 

interfaces enabled.
This commit is contained in:
martin 2011-04-10 11:31:48 +00:00
parent 957fb2eb62
commit ed194e826a
1 changed files with 113 additions and 13 deletions
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126
tests/net/if_loop/t_pr.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: t_pr.c,v 1.4 2011/04/09 20:42:12 martin Exp $ */
/* $NetBSD: t_pr.c,v 1.5 2011/04/10 11:31:48 martin Exp $ */
/*-
* Copyright (c) 2010 The NetBSD Foundation, Inc.
@ -29,11 +29,12 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: t_pr.c,v 1.4 2011/04/09 20:42:12 martin Exp $");
__RCSID("$NetBSD: t_pr.c,v 1.5 2011/04/10 11:31:48 martin Exp $");
#endif /* not lint */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <netinet/in.h>
#include <net/route.h>
@ -51,15 +52,11 @@ __RCSID("$NetBSD: t_pr.c,v 1.4 2011/04/09 20:42:12 martin Exp $");
#include "../config/netconfig.c"
#include "../../h_macros.h"
ATF_TC(loopmtu);
ATF_TC_HEAD(loopmtu, tc)
{
atf_tc_set_md_var(tc, "descr", "test lo0 fragmentation");
/* PR kern/43664 */
}
ATF_TC_BODY(loopmtu, tc)
/*
* Prepare rump server, configure interface and route to cause fragmentation
*/
static void
setup(void)
{
char ifname[IFNAMSIZ];
struct {
@ -68,11 +65,12 @@ ATF_TC_BODY(loopmtu, tc)
} m_rtmsg;
#define rtm m_rtmsg.m_rtm
#define rsin m_rtmsg.m_sin
struct sockaddr_in sin;
struct ifreq ifr;
char data[2000];
int s;
static bool init_done = false;
if (init_done) return;
strcpy(ifname, "lo0");
rump_init();
@ -113,6 +111,106 @@ ATF_TC_BODY(loopmtu, tc)
atf_tc_fail_errno("set route mtu");
rump_sys_close(s);
init_done = true;
}
/*
* Turn on checksums on loopback interfaces
*/
static int
enable_locsums(void)
{
struct sysctlnode q, ans[256];
int mib[5], enable;
size_t alen;
unsigned i;
mib[0] = CTL_NET;
mib[1] = PF_INET;
mib[2] = IPPROTO_IP;
mib[3] = CTL_QUERY;
alen = sizeof(ans);
memset(&q, 0, sizeof(q));
q.sysctl_flags = SYSCTL_VERSION;
if (rump_sys___sysctl(mib, 4, ans, &alen, &q, sizeof(q)) == -1)
return -1;
for (i = 0; i < __arraycount(ans); i++)
if (strcmp("do_loopback_cksum", ans[i].sysctl_name) == 0)
break;
if (i == __arraycount(ans)) {
errno = ENOENT;
return -1;
}
mib[3] = ans[i].sysctl_num;
enable = 1;
if (rump_sys___sysctl(mib, 4, NULL, NULL, &enable,
sizeof(enable)) == -1)
return errno;
return 0;
}
ATF_TC(loopmtu);
ATF_TC_HEAD(loopmtu, tc)
{
atf_tc_set_md_var(tc, "descr", "test lo0 fragmentation");
/* PR kern/43664 */
}
ATF_TC_BODY(loopmtu, tc)
{
struct sockaddr_in sin;
char data[2000];
int s;
setup();
/* open raw socket */
s = rump_sys_socket(PF_INET, SOCK_RAW, 0);
if (s == -1)
atf_tc_fail_errno("raw socket");
/* then, send data */
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_len = sizeof(sin);
sin.sin_port = htons(12345);
sin.sin_addr.s_addr = inet_addr("127.0.0.1");
/*
* Should not fail anymore, PR has been fixed...
*
* atf_tc_expect_signal(SIGABRT, "PR kern/43664");
*/
if (rump_sys_sendto(s, data, sizeof(data), 0,
(struct sockaddr *)&sin, sizeof(sin)) == -1)
atf_tc_fail_errno("sendto failed");
}
ATF_TC(loopmtu_csum);
ATF_TC_HEAD(loopmtu_csum, tc)
{
atf_tc_set_md_var(tc, "descr", "test lo0 fragmentation with checksums");
/* PR kern/43664 */
}
ATF_TC_BODY(loopmtu_csum, tc)
{
struct sockaddr_in sin;
char data[2000];
int s;
setup();
ATF_CHECK(enable_locsums() == 0);
/* open raw socket */
s = rump_sys_socket(PF_INET, SOCK_RAW, 0);
if (s == -1)
@ -139,6 +237,8 @@ ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, loopmtu);
ATF_TP_ADD_TC(tp, loopmtu_csum);
return atf_no_error();
}