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t_pr.c revision 1.9 
      1 /*	$NetBSD: t_pr.c,v 1.9 2017/01/13 21:30:40 christos Exp $	*/
      2 
      3 #include <sys/types.h>
      4 #include <sys/mount.h>
      5 
      6 #include <atf-c.h>
      7 #include <err.h>
      8 #include <errno.h>
      9 #include <fcntl.h>
     10 #include <stdio.h>
     11 #include <unistd.h>
     12 #include <string.h>
     13 #include <stdlib.h>
     14 
     15 #include <rump/rump.h>
     16 #include <rump/rump_syscalls.h>
     17 
     18 #include <miscfs/union/union.h>
     19 
     20 #include "h_macros.h"
     21 
     22 ATF_TC(multilayer);
     23 ATF_TC_HEAD(multilayer, tc)
     24 {
     25 	atf_tc_set_md_var(tc, "descr", "mount_union -b twice");
     26 }
     27 
     28 ATF_TC_BODY(multilayer, tc)
     29 {
     30 	struct union_args unionargs;
     31 
     32 	rump_init();
     33 
     34 	if (rump_sys_mkdir("/Tunion", 0777) == -1)
     35 		atf_tc_fail_errno("mkdir mp1");
     36 	if (rump_sys_mkdir("/Tunion2", 0777) == -1)
     37 		atf_tc_fail_errno("mkdir mp2");
     38 	if (rump_sys_mkdir("/Tunion2/A", 0777) == -1)
     39 		atf_tc_fail_errno("mkdir A");
     40 	if (rump_sys_mkdir("/Tunion2/B", 0777) == -1)
     41 		atf_tc_fail_errno("mkdir B");
     42 
     43 	unionargs.target = __UNCONST("/Tunion2/A");
     44 	unionargs.mntflags = UNMNT_BELOW;
     45 
     46 	if (rump_sys_mount(MOUNT_UNION, "/Tunion", 0,
     47 	    &unionargs, sizeof(unionargs)) == -1)
     48 		atf_tc_fail_errno("union mount");
     49 
     50 	unionargs.target = __UNCONST("/Tunion2/B");
     51 	unionargs.mntflags = UNMNT_BELOW;
     52 
     53 	rump_sys_mount(MOUNT_UNION, "/Tunion", 0,&unionargs,sizeof(unionargs));
     54 }
     55 
     56 ATF_TC(devnull1);
     57 ATF_TC_HEAD(devnull1, tc)
     58 {
     59 	atf_tc_set_md_var(tc, "descr", "mount_union -b and "
     60 	    "'echo x > /un/null'");
     61 }
     62 
     63 ATF_TC_BODY(devnull1, tc)
     64 {
     65 	struct union_args unionargs;
     66 	int fd, res;
     67 
     68 	rump_init();
     69 
     70 	if (rump_sys_mkdir("/mp", 0777) == -1)
     71 		atf_tc_fail_errno("mkdir mp");
     72 
     73 	unionargs.target = __UNCONST("/dev");
     74 	unionargs.mntflags = UNMNT_BELOW;
     75 
     76 	if (rump_sys_mount(MOUNT_UNION, "/mp", 0,
     77 	    &unionargs, sizeof(unionargs)) == -1)
     78 		atf_tc_fail_errno("union mount");
     79 
     80 	fd = rump_sys_open("/mp/null", O_WRONLY | O_CREAT | O_TRUNC);
     81 
     82 	if (fd == -1)
     83 		atf_tc_fail_errno("open");
     84 
     85 	res = rump_sys_write(fd, &fd, sizeof(fd));
     86 	if (res != sizeof(fd))
     87 		atf_tc_fail("write");
     88 }
     89 
     90 ATF_TC(devnull2);
     91 ATF_TC_HEAD(devnull2, tc)
     92 {
     93 	atf_tc_set_md_var(tc, "descr", "mount_union -b and "
     94 	    "'echo x >> /un/null'");
     95 }
     96 
     97 ATF_TC_BODY(devnull2, tc)
     98 {
     99 	struct union_args unionargs;
    100 	int fd, res;
    101 
    102 	rump_init();
    103 
    104 	if (rump_sys_mkdir("/mp", 0777) == -1)
    105 		atf_tc_fail_errno("mkdir mp");
    106 
    107 	unionargs.target = __UNCONST("/dev");
    108 	unionargs.mntflags = UNMNT_BELOW;
    109 
    110 	if (rump_sys_mount(MOUNT_UNION, "/mp", 0,
    111 	    &unionargs, sizeof(unionargs)) == -1)
    112 		atf_tc_fail_errno("union mount");
    113 
    114 	fd = rump_sys_open("/mp/null", O_WRONLY | O_CREAT | O_APPEND);
    115 	if (fd == -1)
    116 		atf_tc_fail_errno("open");
    117 
    118 	res = rump_sys_write(fd, &fd, sizeof(fd));
    119 	if (res != sizeof(fd))
    120 		atf_tc_fail("write");
    121 }
    122 
    123 ATF_TP_ADD_TCS(tp)
    124 {
    125 	ATF_TP_ADD_TC(tp, multilayer);
    126 	ATF_TP_ADD_TC(tp, devnull1);
    127 	ATF_TP_ADD_TC(tp, devnull2);
    128 
    129 	return atf_no_error();
    130 }
    131