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Add a test case for BIOCGBLEN and BIOCSBLEN

This commit is contained in:
ozaki-r 2017-02-01 08:04:49 +00:00
parent 61f323b2dc
commit b1bee1e6b4
1 changed files with 36 additions and 2 deletions
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38
tests/net/bpf/t_bpf.c
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@ -1,4 +1,4 @@
/* $NetBSD: t_bpf.c,v 1.6 2017/01/13 21:30:42 christos Exp $ */
/* $NetBSD: t_bpf.c,v 1.7 2017/02/01 08:04:49 ozaki-r Exp $ */
/*-
* Copyright (c) 2010 Antti Kantee. All Rights Reserved.
@ -25,7 +25,7 @@
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_bpf.c,v 1.6 2017/01/13 21:30:42 christos Exp $");
__RCSID("$NetBSD: t_bpf.c,v 1.7 2017/02/01 08:04:49 ozaki-r Exp $");
#include <sys/param.h>
#include <sys/ioctl.h>
@ -166,6 +166,39 @@ ATF_TC_BODY(bpfwritetrunc, tc)
}
#endif /* #if (SIZE_MAX > UINT_MAX) */
ATF_TC(bpf_ioctl_BLEN);
ATF_TC_HEAD(bpf_ioctl_BLEN, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks behaviors of BIOCGBLEN and "
"BIOCSBLEN");
}
ATF_TC_BODY(bpf_ioctl_BLEN, tc)
{
struct ifreq ifr;
int ifnum, bpfd;
u_int blen = 0;
RZ(rump_init());
RZ(rump_pub_shmif_create(NULL, &ifnum));
sprintf(ifr.ifr_name, "shmif%d", ifnum);
RL(bpfd = rump_sys_open("/dev/bpf", O_RDWR));
RL(rump_sys_ioctl(bpfd, BIOCGBLEN, &blen));
ATF_REQUIRE(blen != 0);
blen = 100;
RL(rump_sys_ioctl(bpfd, BIOCSBLEN, &blen));
RL(rump_sys_ioctl(bpfd, BIOCGBLEN, &blen));
ATF_REQUIRE_EQ(blen, 100);
RL(rump_sys_ioctl(bpfd, BIOCSETIF, &ifr));
ATF_REQUIRE_EQ_MSG(rump_sys_ioctl(bpfd, BIOCSBLEN, &blen), -1,
"Don't allow to change buflen after binding bpf to an interface");
}
ATF_TP_ADD_TCS(tp)
{
@ -173,5 +206,6 @@ ATF_TP_ADD_TCS(tp)
#if (SIZE_MAX > UINT_MAX)
ATF_TP_ADD_TC(tp, bpfwritetrunc);
#endif
ATF_TP_ADD_TC(tp, bpf_ioctl_BLEN);
return atf_no_error();
}