t_modautoload.c revision 272343 
1/*	$NetBSD: t_modautoload.c,v 1.2 2014/03/10 22:38:53 pooka Exp $	*/
2
3#include <sys/types.h>
4#include <sys/mount.h>
5#include <sys/module.h>
6#include <sys/dirent.h>
7#include <sys/sysctl.h>
8
9#include <atf-c.h>
10#include <err.h>
11#include <errno.h>
12#include <fcntl.h>
13#include <stdio.h>
14#include <unistd.h>
15#include <string.h>
16#include <stdlib.h>
17
18#include <rump/rump.h>
19#include <rump/rump_syscalls.h>
20
21#include <miscfs/kernfs/kernfs.h>
22
23#include "../../h_macros.h"
24
25ATF_TC(modautoload);
26ATF_TC_HEAD(modautoload, tc)
27{
28
29	atf_tc_set_md_var(tc, "descr", "tests that kernel module "
30	    "autoload works in rump");
31}
32
33static void
34mountkernfs(void)
35{
36
37	if (!rump_nativeabi_p())
38		atf_tc_skip("host kernel modules not supported");
39
40	rump_init();
41
42	if (rump_sys_mkdir("/kern", 0777) == -1)
43		atf_tc_fail_errno("mkdir /kern");
44	if (rump_sys_mount(MOUNT_KERNFS, "/kern", 0, NULL, 0) == -1)
45		atf_tc_fail_errno("could not mount kernfs");
46}
47
48/*
49 * Why use kernfs here?  It talks to plenty of other parts with the
50 * kernel (e.g. vfs_attach() in modcmd), but is still easy to verify
51 * it's working correctly.
52 */
53
54#define MAGICNUM 1323
55ATF_TC_BODY(modautoload, tc)
56{
57	extern int rumpns_hz;
58	char buf[64];
59	int fd;
60
61	mountkernfs();
62	rumpns_hz = MAGICNUM;
63	if ((fd = rump_sys_open("/kern/hz", O_RDONLY)) == -1)
64		atf_tc_fail_errno("open /kern/hz");
65	if (rump_sys_read(fd, buf, sizeof(buf)) <= 0)
66		atf_tc_fail_errno("read");
67	ATF_REQUIRE(atoi(buf) == MAGICNUM);
68}
69
70ATF_TP_ADD_TCS(tp)
71{
72	ATF_TP_ADD_TC(tp, modautoload);
73
74	return atf_no_error();
75}
76