freebsd-dev/contrib/netbsd-tests/net/bpf/t_div-by-zero.c
Enji Cooper 57718be8fa Import the NetBSD test suite from ^/vendor/NetBSD/tests/09.30.2014_20.45 ,
minus the vendor Makefiles

Provide directions for how to bootstrap the vendor sources in
FREEBSD-upgrade

MFC after 2 weeks
Discussed with: rpaulo
Sponsored by: EMC / Isilon Storage Division
2014-10-02 23:26:49 +00:00

53 lines
971 B
C

#include <sys/types.h>
#include <sys/ioctl.h>
#include <net/bpf.h>
#include <atf-c.h>
#include <fcntl.h>
#include <rump/rump.h>
#include <rump/rump_syscalls.h>
ATF_TC(div_by_zero);
ATF_TC_HEAD(div_by_zero, tc)
{
atf_tc_set_md_var(tc, "descr", "Check that BPF rejects a filter "
"which divides by 0");
}
ATF_TC_BODY(div_by_zero, tc)
{
struct bpf_program bp;
int fd;
/*
* Source code for following program:
* link[0:4]/0 = 2
*/
struct bpf_insn bins[] = {
{ 0x20, 0, 0, 0x00000000 },
{ 0x34, 0, 0, 0x00000000 },
{ 0x15, 0, 1, 0x00000002 },
{ 0x6, 0, 0, 0x00000060 },
{ 0x6, 0, 0, 0x00000000 },
};
bp.bf_len = __arraycount(bins);
bp.bf_insns = bins;
rump_init();
fd = rump_sys_open("/dev/bpf", O_RDWR);
ATF_CHECK(fd != -1);
ATF_REQUIRE_EQ_MSG(rump_sys_ioctl(fd, BIOCSETF, &bp), -1,
"bpf accepted program with division by zero");
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, div_by_zero);
return atf_no_error();
}