t_basic.c revision 314817 
1/*	$NetBSD: t_basic.c,v 1.4 2017/01/13 21:30:40 christos 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(getdents);
26ATF_TC_HEAD(getdents, tc)
27{
28
29	atf_tc_set_md_var(tc, "descr", "kernfs directory contains files");
30}
31
32static void
33mountkernfs(void)
34{
35
36	rump_init();
37
38	if (rump_sys_mkdir("/kern", 0777) == -1)
39		atf_tc_fail_errno("mkdir /kern");
40	if (rump_sys_mount(MOUNT_KERNFS, "/kern", 0, NULL, 0) == -1)
41		atf_tc_fail_errno("could not mount kernfs");
42}
43
44ATF_TC_BODY(getdents, tc)
45{
46	struct dirent *dent;
47	char buf[8192];
48	int dfd;
49
50	mountkernfs();
51
52	if ((dfd = rump_sys_open("/kern", O_RDONLY)) == -1)
53		atf_tc_fail_errno("can't open directory");
54	if (rump_sys_getdents(dfd, buf, sizeof(buf)) == -1)
55		atf_tc_fail_errno("getdents");
56
57	/*
58	 * Check that we get the first three values (., .., boottime).
59	 * Make more complete by autogenerating list from kernfs_vnops.c?
60	 */
61	dent = (void *)buf;
62	ATF_REQUIRE_STREQ(dent->d_name, ".");
63	dent = _DIRENT_NEXT(dent);
64	ATF_REQUIRE_STREQ(dent->d_name, "..");
65	dent = _DIRENT_NEXT(dent);
66	ATF_REQUIRE_STREQ(dent->d_name, "boottime");
67
68	/* done */
69}
70
71ATF_TC(hostname);
72ATF_TC_HEAD(hostname, tc)
73{
74
75	atf_tc_set_md_var(tc, "descr", "/kern/hostname changes hostname");
76}
77
78static char *
79getthehost(void)
80{
81	static char buf[8192];
82	int mib[2];
83	size_t blen;
84
85	mib[0] = CTL_KERN;
86	mib[1] = KERN_HOSTNAME;
87	blen = sizeof(buf);
88	if (rump_sys___sysctl(mib, 2, buf, &blen, NULL, 0) == -1)
89		atf_tc_fail_errno("sysctl gethostname");
90
91	return buf;
92}
93
94#define NEWHOSTNAME "turboton roos-berg"
95ATF_TC_BODY(hostname, tc)
96{
97	char buf[8192];
98	char *shost, *p;
99	int fd;
100
101	mountkernfs();
102	if ((fd = rump_sys_open("/kern/hostname", O_RDWR)) == -1)
103		atf_tc_fail_errno("open hostname");
104
105	/* check initial match */
106	shost = getthehost();
107	buf[0] = '\0';
108	if (rump_sys_read(fd, buf, sizeof(buf)) == -1)
109		atf_tc_fail_errno("read hostname");
110	p = strchr(buf, '\n');
111	if (p)
112		 *p = '\0';
113	ATF_REQUIRE_STREQ_MSG(buf, shost, "initial hostname mismatch");
114
115	/* check changing hostname works */
116	if (rump_sys_pwrite(fd, NEWHOSTNAME, strlen(NEWHOSTNAME), 0)
117	    != strlen(NEWHOSTNAME)) {
118		atf_tc_fail_errno("write new hostname");
119	}
120
121	shost = getthehost();
122	ATF_REQUIRE_STREQ_MSG(NEWHOSTNAME, shost, "modified hostname mismatch");
123
124	/* done */
125}
126
127ATF_TP_ADD_TCS(tp)
128{
129	ATF_TP_ADD_TC(tp, hostname);
130	ATF_TP_ADD_TC(tp, getdents);
131
132	return atf_no_error();
133}
134