xref: /freebsd/contrib/netbsd-tests/fs/union/t_pr.c (revision 57718be8fa0bd5edc11ab9a72e68cc71982939a6)
1*57718be8SEnji Cooper /*	$NetBSD: t_pr.c,v 1.8 2011/08/10 06:27:02 hannken Exp $	*/
2*57718be8SEnji Cooper 
3*57718be8SEnji Cooper #include <sys/types.h>
4*57718be8SEnji Cooper #include <sys/mount.h>
5*57718be8SEnji Cooper 
6*57718be8SEnji Cooper #include <atf-c.h>
7*57718be8SEnji Cooper #include <err.h>
8*57718be8SEnji Cooper #include <errno.h>
9*57718be8SEnji Cooper #include <fcntl.h>
10*57718be8SEnji Cooper #include <stdio.h>
11*57718be8SEnji Cooper #include <unistd.h>
12*57718be8SEnji Cooper #include <string.h>
13*57718be8SEnji Cooper #include <stdlib.h>
14*57718be8SEnji Cooper 
15*57718be8SEnji Cooper #include <rump/rump.h>
16*57718be8SEnji Cooper #include <rump/rump_syscalls.h>
17*57718be8SEnji Cooper 
18*57718be8SEnji Cooper #include <miscfs/union/union.h>
19*57718be8SEnji Cooper 
20*57718be8SEnji Cooper #include "../../h_macros.h"
21*57718be8SEnji Cooper 
22*57718be8SEnji Cooper ATF_TC(multilayer);
23*57718be8SEnji Cooper ATF_TC_HEAD(multilayer, tc)
24*57718be8SEnji Cooper {
25*57718be8SEnji Cooper 	atf_tc_set_md_var(tc, "descr", "mount_union -b twice");
26*57718be8SEnji Cooper }
27*57718be8SEnji Cooper 
28*57718be8SEnji Cooper ATF_TC_BODY(multilayer, tc)
29*57718be8SEnji Cooper {
30*57718be8SEnji Cooper 	struct union_args unionargs;
31*57718be8SEnji Cooper 
32*57718be8SEnji Cooper 	rump_init();
33*57718be8SEnji Cooper 
34*57718be8SEnji Cooper 	if (rump_sys_mkdir("/Tunion", 0777) == -1)
35*57718be8SEnji Cooper 		atf_tc_fail_errno("mkdir mp1");
36*57718be8SEnji Cooper 	if (rump_sys_mkdir("/Tunion2", 0777) == -1)
37*57718be8SEnji Cooper 		atf_tc_fail_errno("mkdir mp2");
38*57718be8SEnji Cooper 	if (rump_sys_mkdir("/Tunion2/A", 0777) == -1)
39*57718be8SEnji Cooper 		atf_tc_fail_errno("mkdir A");
40*57718be8SEnji Cooper 	if (rump_sys_mkdir("/Tunion2/B", 0777) == -1)
41*57718be8SEnji Cooper 		atf_tc_fail_errno("mkdir B");
42*57718be8SEnji Cooper 
43*57718be8SEnji Cooper 	unionargs.target = __UNCONST("/Tunion2/A");
44*57718be8SEnji Cooper 	unionargs.mntflags = UNMNT_BELOW;
45*57718be8SEnji Cooper 
46*57718be8SEnji Cooper 	if (rump_sys_mount(MOUNT_UNION, "/Tunion", 0,
47*57718be8SEnji Cooper 	    &unionargs, sizeof(unionargs)) == -1)
48*57718be8SEnji Cooper 		atf_tc_fail_errno("union mount");
49*57718be8SEnji Cooper 
50*57718be8SEnji Cooper 	unionargs.target = __UNCONST("/Tunion2/B");
51*57718be8SEnji Cooper 	unionargs.mntflags = UNMNT_BELOW;
52*57718be8SEnji Cooper 
53*57718be8SEnji Cooper 	rump_sys_mount(MOUNT_UNION, "/Tunion", 0,&unionargs,sizeof(unionargs));
54*57718be8SEnji Cooper }
55*57718be8SEnji Cooper 
56*57718be8SEnji Cooper ATF_TC(devnull1);
57*57718be8SEnji Cooper ATF_TC_HEAD(devnull1, tc)
58*57718be8SEnji Cooper {
59*57718be8SEnji Cooper 	atf_tc_set_md_var(tc, "descr", "mount_union -b and "
60*57718be8SEnji Cooper 	    "'echo x > /un/null'");
61*57718be8SEnji Cooper }
62*57718be8SEnji Cooper 
63*57718be8SEnji Cooper ATF_TC_BODY(devnull1, tc)
64*57718be8SEnji Cooper {
65*57718be8SEnji Cooper 	struct union_args unionargs;
66*57718be8SEnji Cooper 	int fd, res;
67*57718be8SEnji Cooper 
68*57718be8SEnji Cooper 	rump_init();
69*57718be8SEnji Cooper 
70*57718be8SEnji Cooper 	if (rump_sys_mkdir("/mp", 0777) == -1)
71*57718be8SEnji Cooper 		atf_tc_fail_errno("mkdir mp");
72*57718be8SEnji Cooper 
73*57718be8SEnji Cooper 	unionargs.target = __UNCONST("/dev");
74*57718be8SEnji Cooper 	unionargs.mntflags = UNMNT_BELOW;
75*57718be8SEnji Cooper 
76*57718be8SEnji Cooper 	if (rump_sys_mount(MOUNT_UNION, "/mp", 0,
77*57718be8SEnji Cooper 	    &unionargs, sizeof(unionargs)) == -1)
78*57718be8SEnji Cooper 		atf_tc_fail_errno("union mount");
79*57718be8SEnji Cooper 
80*57718be8SEnji Cooper 	fd = rump_sys_open("/mp/null", O_WRONLY | O_CREAT | O_TRUNC);
81*57718be8SEnji Cooper 
82*57718be8SEnji Cooper 	if (fd == -1)
83*57718be8SEnji Cooper 		atf_tc_fail_errno("open");
84*57718be8SEnji Cooper 
85*57718be8SEnji Cooper 	res = rump_sys_write(fd, &fd, sizeof(fd));
86*57718be8SEnji Cooper 	if (res != sizeof(fd))
87*57718be8SEnji Cooper 		atf_tc_fail("write");
88*57718be8SEnji Cooper }
89*57718be8SEnji Cooper 
90*57718be8SEnji Cooper ATF_TC(devnull2);
91*57718be8SEnji Cooper ATF_TC_HEAD(devnull2, tc)
92*57718be8SEnji Cooper {
93*57718be8SEnji Cooper 	atf_tc_set_md_var(tc, "descr", "mount_union -b and "
94*57718be8SEnji Cooper 	    "'echo x >> /un/null'");
95*57718be8SEnji Cooper }
96*57718be8SEnji Cooper 
97*57718be8SEnji Cooper ATF_TC_BODY(devnull2, tc)
98*57718be8SEnji Cooper {
99*57718be8SEnji Cooper 	struct union_args unionargs;
100*57718be8SEnji Cooper 	int fd, res;
101*57718be8SEnji Cooper 
102*57718be8SEnji Cooper 	rump_init();
103*57718be8SEnji Cooper 
104*57718be8SEnji Cooper 	if (rump_sys_mkdir("/mp", 0777) == -1)
105*57718be8SEnji Cooper 		atf_tc_fail_errno("mkdir mp");
106*57718be8SEnji Cooper 
107*57718be8SEnji Cooper 	unionargs.target = __UNCONST("/dev");
108*57718be8SEnji Cooper 	unionargs.mntflags = UNMNT_BELOW;
109*57718be8SEnji Cooper 
110*57718be8SEnji Cooper 	if (rump_sys_mount(MOUNT_UNION, "/mp", 0,
111*57718be8SEnji Cooper 	    &unionargs, sizeof(unionargs)) == -1)
112*57718be8SEnji Cooper 		atf_tc_fail_errno("union mount");
113*57718be8SEnji Cooper 
114*57718be8SEnji Cooper 	fd = rump_sys_open("/mp/null", O_WRONLY | O_CREAT | O_APPEND);
115*57718be8SEnji Cooper 	if (fd == -1)
116*57718be8SEnji Cooper 		atf_tc_fail_errno("open");
117*57718be8SEnji Cooper 
118*57718be8SEnji Cooper 	res = rump_sys_write(fd, &fd, sizeof(fd));
119*57718be8SEnji Cooper 	if (res != sizeof(fd))
120*57718be8SEnji Cooper 		atf_tc_fail("write");
121*57718be8SEnji Cooper }
122*57718be8SEnji Cooper 
123*57718be8SEnji Cooper ATF_TP_ADD_TCS(tp)
124*57718be8SEnji Cooper {
125*57718be8SEnji Cooper 	ATF_TP_ADD_TC(tp, multilayer);
126*57718be8SEnji Cooper 	ATF_TP_ADD_TC(tp, devnull1);
127*57718be8SEnji Cooper 	ATF_TP_ADD_TC(tp, devnull2);
128*57718be8SEnji Cooper 
129*57718be8SEnji Cooper 	return atf_no_error();
130*57718be8SEnji Cooper }
131